Had, what I consider, a large installation in a Milwaukee bungalow. Full furnace and AC unit replacement, which included three Mitsubishi units in the upstairs. Even with the shortage of AC units due to the sudden heat wave in the Northwest, Gross did a fantastic job, kept me in the loop of any changes and the install crew couldnt have been better. Estimate was the total cost - no upcharges, changes, etc. and installers took the time to walk me through any decisions as they came up.Some companies say they will treat you like family. Gross Heating ARE family. My 5 year old grandson still asks when those nice guys are coming back. Best endorsement I can ever give.Summary - Didnt deviate from estimate. Great installation with great care. Communicative and always kept to their promise. Great crew, who treated the house like it was their house and fantastic interactions. HIGHLY recommend!

Called to say they are on the way, Arrived on-time, Office staff is friendly and responsive....Great company

Received a very fair price for new furnace w/ humidifier and A/C system install (Carrier). The team showed up on our scheduled day (mid-April) and were absolutely great! Clean, efficient and nice communication! Started at 7:30am and were done by 2:30pm. Showed us how to use the system and it has been running flawlessly since. Another tech came back when it got warmer to check A/C system and all good. Highly recommend!

Very knowledgeable staff! They got our furnace back working in a hurry!

I have only positive things to say about Gross Heating & AC!! From my first phone call to request support/appt to the woman who called to alert me that a technician was on the way to meeting Corey my technician--every one was so kind and professional. I was provided a fair assessment and I was relieved at how affordable my specific AC repair was in the end. Corey was efficient, quick, and a true miracle worker as my AC feels wonderful now :) I will recommend Gross to anyone who is in need of their services and I plan on being a return customer if I experience any heating/cooling needs in the future!

Randy Belongia was extremely kind, very honest, professional and highly knowledgeable. I really do worry that I may be taken advantage of and told You need a new furnace/air. That was not the case with Randy. He simply serviced and explained some things to me which were very helpful. I highly recommend Randy!

Had the ~25 year old furnace and AC replaced and the house addition zoned. Previously, we were never able to get adequate heating and cooling in the 40 year old addition without supplemental electric heating. The heating worked great in -15 degree Fahrenheit weather so that we can remove the electric baseboard heating. Needed an adjustment by one of the owners (Joe) after summer startup on the air flow for the air conditioner (shutting down on too cold temperatures) and the ac has worked well.

Gross is a high quality heating and air contractor Id recommend for any job.They installed a new Unico central AC system in our 1920s Milwaukee bungalow and were thorough and careful with the complex planning and installation. I was especially impressed with the time they took in the estimate phase, coming out to our house twice to ensure they fully understood the architecture and had a detailed plan that fit our needs. Running all new ductwork through an old house is an invasive job, but they were communicative and kept the mess contained throughout the process. The AC has really improved our lives this summer.They also replaced our 70+ year old gas boiler with a new condensing boiler. The new unit heats much more evenly and is significantly quieter than our old gravity-fed system. I was impressed with the speed and expertise with which they replaced the old system. The pipework was done very neatly, leaving plenty of space for the future.Gross is experienced and professional, and I wouldnt hesitate to recommend them.

We had an issue with a leak in our AC unit due to a clog in our condensation drain line. Randy with Gross came out and was very professional and knowledgeable. He was quick to diagnosis the issue and unclog the line. I would recommend Gross Heating & Air Conditioning for any AC/Heating issues you may have.

Technician was very professional, helpful, courteous, friendly, prompt . Excellent service, quality workmanship. I highly recommend Gross Heating and Air Conditioning!

The technician was courteous, he educated me about how to maintain my system more effectively and I was confident he knew what he was doing. Plus, he was on time. I have been working with this company for the past 6 years and they have never let me down.

Truly a professional team that installed a new furnace and thermostats and dehumidifier. I highly recommend to my family and friends!

Joe and his team were super professional when installing our new AC unit. They were on time and very polite while at our house. I can’t thank their team enough for getting our AC installed before the hot weather came! Thanks so much!!

Technician was friendly and efficient. Gross came out ahead of our agreed on date to remove our old AC due to unexpected basement repair, which we appreciated as our contractor would have charged extra.

Our 35 year old furnace was not keeping up to the challenge of this winter and we called for an estimate for a new furnace. The time between estimate and installation was less than four days. Professional and efficient installation with great attention to detail completed the experience from Jerry and Eric. Installers found more efficient ways to position the new furnace. Also polite, friendly and honest in their manner. I would highly recommend Gross Heating!

Very fast response, excellent job fixing the problem. Very personable technician that answered all my questions and made me comfortable that the job was fixed correctly. Very happy with the experience.

Our experience from meeting with the sales rep through installation was superb! Professional, friendly, kind, and they all listened to what we needed and wanted and did everything they could to meet our needs. We had some very minor issues and they were addressed immediately and cheerfully. Highly recommend!!

Gross Heating & Air Conditioning provided us with quality service throughout the process of adding central air to our east-side property.Co-owner Joe Mechanic was actively involved during the selection and installation of our new air conditioning systems and supplemental heating.The Gross crew worked diligently to meet our heating and cooling needs, and did so in a professional and timely manner. No easy feat, when working on a nearly 100 yr old three-story duplex with hot water heat.We could not be more satisfied with excellent work done by Gross Heating & Air Conditioning.

In the beginning of February Milwaukee was experiencing extremely cold temperatures and our 17 year old furnace (also installed by Gross Heating) failed. It was getting colder and colder in the house. We called Gross Heating and within an hour, they had a repair person at our house. It was a fairly expensive part that had failed ($837) and since our furnace was nearing the end of its life, the repairman mentioned we should consider replacing it. We contacted a sales person the next day who came out and discussed our options. If we decided to replace our furnace and AC, Gross would reimburse us for the cost of the $837 part as well as credit us for the thermostat we had replaced months earlier. They were extremely fair and yesterday we had a new furnace and AC (the outdoor unit will be installed in spring) installed. The 3 men were here from 7:15 AM until 2:30 PM. They put cloths down in order to not dirty our carpets, they wore their masks, and they cleaned up after themselves. Very professional all the way around. Thank you Gross Heating!

The group ( Brad,Chad, Colton and Erik) was outstanding!! Brad as their lead person made sure to keep me up to date on everything. They were timely, professional and respectful of my request to have masks when in the house. Every one that I asked a question ( and I had MANY) was patient and explained things in terms I ( and my tenant) could understand. They completed their work in the time they said they would and cleaned up when they were done!! They were recommended to me by a neighbor and I highly recommend them as well!! Thanks guys for a job well done!!

The team at Gross Heating & Air Conditioning are second to none. They are impeccable professionals who genuinely care about their customers and help guide them to what is truly best for them.

From our first call for help and quote, Gross showed their personal concern for our well-being...the first question was do you have heat now?. From that point forward Gross was quick, punctual, and efficient. Great service, Great work, and Great guys to work with. Thank you Gross Heating...youve earned us as a customer hands down.

They were terrific. They responded immediately and installed two new furnaces for my duplex that I live in as soon as possible. They did a beautiful, professional job.

Jessie and Daniel were respectful and efficient throughout their time in our home. They were friendly as well. They set a high bar for the quality of any future Gross servicemen. Maybe you had better send only them if we have any service needs.Thank you,Mary Hauser

Randy our service technician just left and I am beyond satisfied with the service. Every interaction with Gross Heating has been great. Scheduling was so easy to do online, the customer service representative who called was friendly and responsive. I got a call that Randy was on the way and he came right on time. I had asked for a general maintenance, but he clearly had done his homework before coming and had read through some past issues weve had and asked about those too, even though thats not what I had scheduled. He never made me feel rushed, showed me features on my equipment I never knew I had, thoroughly explained everything he was doing, even gave me his number so I could send him a follow up message on how things were working out with the equipment. Overall just a wonderful experience.

Our family recently had our furnace replaced by Gross Heating & Air Conditioning. The process of replacing the furnace was like clockwork with every required task. The attention to detail was meticulous with a high quality of work including adjustments to items from when the house was originally built. We were very pleased with the entire process and would highly recommend Gross Heating & Air Conditioning to others.Lars Hedman, New Berlin

Mike K and Erik were friendly and informative with our AC, Radon, humidifier and dehumidifier installation. I would recommend their services.

Randy from Gross did an amazing job. Great deal of expertise and was able to troubleshoot my furnace issue in a timely manner. Ive always been pleased with Gross HVAC technicians.

Our technician Randy was punctual, professional, and thoroughly explained the issue with our furnace to us. He quickly resolved the problem and explained ways we could prevent our unit from running into the issue again. I’d recommend Gross Heating to family and friends.

Turned out to have a capacitor failure. Randy Belongia was prompt and professional on a Friday night to get our unit back into operation. He explained the problem in detail and wasted no time. Thanks!

Prompt, very friendly, very good work. Would highly recommend to anyone!

Was referred to Gross Heating & Air Conditioning by several neighbors. Corey performed a furnace tune-up and was very professional and courteous. By total coincidence a few days after the tune-up, a damper snapped off, and Randy was quick to come repair. He was also very friendly and professional. Will definitely use for future HVAC needs.

Great to have someone you can trust, doing a great job of installing our new heating system?

Our furnace went out on a Sunday and we called Gross on Monday morning. Jerry the owner came out, talked us through options, and by Tuesday at noon we had a new furnace in and heat back in the house. We have always been impressed with Gross service.

Gross Heating & Air Conditioning (and especially our service technician Randy) has provided excellent service each and every time weve scheduled an appointment. Randy always takes the time explain the work that he does as well as educate us about any preventative maintenance we can perform ourselves between routine visits. Ive never once looked at the invoice and worried that I was being overcharged or taken advantage of. If youre looking for an exemplary local business to service your AC/HVAC then look no further!

Work done in a timely manner 2 man crew were professional in all they didEP

Joe and his team are simply the best there is. I replaced all of the entry level HVAC In our new condo with the best Carrier has to offer. I also installed a ductless mini-split system in our garage. The install crew could not have been better and very detail oriented. The owner Joe Mechenich is one of the most responsive people Ive ever worked with in this industry. Simply the best of the best in my opinion!

Randy came out to our home and performed maintenance on our boiler. He provided excellent service and was professional. I have used Gross Heating multiple times in the past, and to be honest, their service is just superior!

Gross Heating and air conditioning is always very professional. We were concerned that something was wrong with our furnace. We spoke to a professional that night who was able to tell us that it was not an emergency and they would call the next morning which they did. A service person came right out. The issue was quickly resolved. The service person was very kind and knew what he was doing. I appreciated that they did not try to claim something was an emergency at a higher cost and gave us sound advice that night. In the end, it cost us less to have it fixed the next day and it was done right away with no issues. We have always been happy with them and would recommended them to others.

The person who scheduled my annual maintenance said it should be about 1/2 to 3/4 hour since it was a hydronic system and about $70. The maint person milked the time to almost an hour. I swear that they set the clock when they were driving over here. Then sat in the vehicle for another 5 mins before coming into my home. After the work? was done, they sat in the vehicle another 10 minutes. They logged almost ONE HOUR of work. Total bill - $147. BS to that.

We had a complete new heating system put in. The 2 men did a fantastic job. Compared to the 30 year old boiler that we had, I told the men that the new piping and wall hanging boiler looks like a work of art! Since this was a 2 day project, the company provided multiple space headers for our use. They also completely cleaned up after the project. I would highly recommend their services.

We had a problem with our hot water heat in the Fall, as the baseboard radiant heat in 1/3 of our house was not working. Their rep came out to fix the problem. I understood there would be a trip charge. He came out and spent an hour looking at the boiler and looking at the baseboards. He did nothing and said we should probably consider replacing the boiler as it was about 26 years old. The repair would cost between $800 and $1000 and then it could still have things go wrong. He charged us $130 for that diagnosis said he could come back and fix it after ordering a pressure gauge, etc. but he would have someone call about new boiler pricing. No one ever called until a week later I called them again. I also called Toms Heating in Waukesha for a 2nd opinion. They came out next day and fixed the heat in under 1 hour for $169. The system was apparently 12 lbs low on air pressure and he added that and then bled the radiant baseboards. It has worked fine ever since. I would NOT recommend Gross Heating in Brookfield because their rep did not even try to fix our problem. We did NOT need a new furnace.

Very rarely do you get work done that is affordable, quality and fast. Randy Belongia was all three for us. Got in to do a job even a little early for us and got the job done fast. I know when it comes time to replace our AC and furnace well be calling Gross. Thanks guys

On this visit the tech was quick to diagnose the issue, got our A/C unit running again and let us know we needed to do to help our A/C unit run at peek efficiency. Same day service on an emergency call, they were here in under 4 hours. Amazing service.

Top notch professionals. Highly trained, honest, and confident in the products they service and the service they provide.

I am so impressed! We had an unfortunate flooding incident in our basement and Gross heating really stepped up in helping me find the problem and working with me as I made insurance claims! Bill their technician is professional and so helpful and willing to explain exactly what is being worked on and why. He’s also shared tips of how to maintain my HVAC system and make it the most efficient for my home!

I really appreciated the quick response and thorough work that Randy did in repairing our Air Conditioner. It has been a very hot summer and with the air conditioner out of commission it was miserable. Again thank you for your quick and efficient work.

Jeff set up the installation of a new AC and Brad did the install. Both were hard working, friendly and the whole process went so smooth. No mess was left! I would highly recommend Gross Heating and Air!!!

I called Gross at 7:40 this morning and had a technician at my home shortly after nine. The technician was extremely kind and respectful and didn’t seem put off by my dog jumping all over him. I also greatly appreciated the compassion of Anne, in the office... she seemed genuinely concerned about the lack of heat in my home; good customer service is alive and well at Gross! Many many thanks!

The Gross Heating and Cooling technicians are very experienced with servicing our boiler. Never have any problems with our heating or zone heating thermostats.

Great experience having my air conditioner replaced. Jeff went out of his way to inspect my current situation, was very thorough in his assessment, answered any questions I had, & provided me a quote the day I reached out. Justin was prompt and courteous on the day of installation, & ensured everything was properly handled.

Gross was contacted as a 2nd opinion when problems with a heat pump were incorrectly diagnosed by someone else. After thoughtful and careful analysis, including contacting the manufacturer (which others wouldnt do), it was concluded that the heat pump needed to be replaced. Upon careful consultation with the contractor and electrician, a new heat pump and air handler were efficiently and professionally installed. All involved were polite, punctual, patiently answered questions, and worked neatly.

Brad and Chad were wonderful. They were professional and worked well will my husband. They are very polite when I arrived. The work they did was doing professionally.

Doug is excellent. Always great expertise and trustworthy.

We had Gross Heating come out for a maintenance check in our new house. They gave us a 2 hour time frame for the arrival of our tech. That morning they called and told us our service tech was in his way. He arrived shortly after. Mike the technician was very personable and helpful explaining our system and how it works. Much different than our old house. Thanks again Mike!

Had to replace 2 old (gravity) furnaces and install 2 AC units for my duplex in fall of 18. The people at Gross were very helpful in recommending what would work best and did a thorough job on the install and clean up. Ive had to have some additional duct work done since to reduce some noise as the ducts were old and they did it free of charge. Overall a great experience.

From selling to the install, Gross Heating did an excellent job. When Jeff first came to the house to give us a quote, he was very accommodating and laid out all the options so we could make our best selections for a new furnace and a/c.The installers arrived on time. The first thing they told me was that they were working for me and their job that day was to keep me happy and they did! The install itself went very smoothly overall. Mike explained how to operate the equipment to us in terms we could understand. The job site was thoroughly cleaned up before they left. I called the office to arrange for payment and the office staff member was very cordial. Everyone in the company behaved professionally and are just nice people. Gross Heating did an excellent job and I highly recommend them.

I feel very fortunate that Gross Heating is my home and church heating air conditioning partner and specialists. We did a fairly large project at upgrading all 11 roof top units at my church and Gross was outstanding through out the process at completing to project on time and cost to the penny of their quote. In fact, I was so happy that I just had them install a furnace/ air conditioner pair at my home today. Came in and had the old units out, new ones installed completely done in 4 hours ! Perfect job with no hassles. Also They are always available to help answer any questions I have and reused the church and home ecobee thermostats we had installed proper.

Great experience from the service call that let us know that our 26 year old furnace was beyond repair to the final installation of new AC and Furnace in our home. Chad and Brad were on time, clean and very respectful of our home. Could not have had a better experience.

Coldest day of the year so far, furnace struggling to start up, house temps +/-10F. Called Gross in morning and few hours later they sent out Randy to repair. Luckily was a flame sensor, a common issue with my brand of furnace. Randy repaired, inspected and tuned up furnace in in the 30 minute minimum charge time. Could not be happier with Gross Heating, will be calling them for central air compressor replacement first thing in spring..

Large addition 2013 using another HVAC outfit. I came to learn just how badly the 2013 work was done.Lengthy evaluation by Gross Heating led to a new Carrier Infinity furnace, and significant duct work, including three zones. I was present during all their work. As now a much more sophisticated Homeowner, regarding HVAC, I am aware that the work they did was top-notch.Their estimate was accurate, fair, and appropriate. Each of their workers clearly had extensive education on HVAC principles and practices, unlike our prior contractor.

They have taken great care of my furnace and air conditioner

Have used Gross Heating for 18 years. Had an issue with my furnace today, 11/2/19. Randy was fantastic! Knew exactly what was wrong. Very pleased with the service and professionalism. Highly recommend!Had another service call today (11/4/19) with Jacob. Different guy-same results! Very knowledgeable and professional (I seem to be picking up a pattern with Gross Heating techs). Got my furnace up and running!Dont like Winter, but I am now prepared (at least my furnace is)...Well done, Gross Heating!!

Weve been using Gross Heating & Air Conditioning for over 20 years and they have always delivered excellent service. Doug is a great technician. He is always on time, very professional, very knowledgable and answers all of our questions. I highly recommend Gross Heating & Air Conditioning and ask for Doug.

Chad and Brad did an awesome job! They were fast, friendly, and punctual. As a woman, I oftentimes feel wary being alone with strangers in my home, but I immediately felt comfortable with these two. Additionally, they were happy to explain things. We had a great experience with Gross heating!

Gross is an expceptional and outstanding company. Professional, polite, clean and always go the extra mile that quality work demands. They installed a Carrier funrace in my home last fall which is an amazing product. They also service my heating and cooling and have been terrific. Would highly recommend.

Wonderful service. They had installed a whole house humidifier and we are pleased. Thank you for the great work and we were quite pleased with their professional advice and knowledge. Thank you so much.

Had some excellent service on my furnace today by Randy B. He explained things that he was doing, checked things over in detail, and even reminded me about things like replacing my battery in my thermostat and the importance of keeping the outside intake/outtake pipes clean of snow and ice.We also talked about frequency to clean/check furnace and A/C and some other useful tips that I wouldnt have thought of.Randy was very courteous and professional as well.

They always provide a prompt response for any HVAC issue. They kept my 30+ yr. old furnace operating until parts were no longer available. I had them install a new furnace and they did a great job.

Randy was very knowledgeable and informative! Would highly recommend him!

Just bought a furnace filter at the Brookfield office. Counter people do not wear masks. I am 70 years old and two time cancer survivor. Very disappointing. I am not sure of the masks requirements in Brookfield, but do the sensible thing.

Weve been using Gross Heating for over 25 years and are very happy with them. Had a replacement HVAC system installed today, the two technicians, Mike and Eric, we professional, friendly, helpful with teaching us about the new system and did an excellent job of cleaning up.

I replaced my 20 year old central air conditioner with a new Carrier unit from Gross Heating and Cooling. Since my Townhouse does not have a furnace, I needed to replace a fan-coil unit that was built into my inside wall as well as the central air unit outside of my home. The old fan-coil was 40 plus years old so the new one had to match up to the new Carrier unit with the new R410-A refrigerant. This job required experienced installers with expertise and Joe knew just who to assign the job to. Jesse and James showed up on time to do the install and apply their expertise with this type of system. They both spent the whole day installing, knew exactly what they were doing and kept the inside of my home clean while they worked. When I researched the different brands and models of central air conditioners, the message was very clear about installation. I learned that the quality of the installation determined the reliability of the unit more than anything else. I would recommend Gross Heating and Cooling because of the professional installation and competitive price.

The man showed up exactly when they said they were going to come. Very nice guy. He explained what he was going to do and that he needed to get into the basement for the furnace. Had the old A/C quickly removed and the new pad and unit installed within a few hours. Left for a bit to do the venting work and was back and finishing up within the time frame we were told. The original salesman is what got up. He was the fourth over here. He explained EVERYTHING. Gave us options on units and knew the differences between them. Nice and knowledgeable man. He spent a good deal of time looking at our old unit and the furnace and venting and showing us things. Sat down with us and gave us the details and costs. Gross wasnt the cheapest, nor was it the most expensive, but I know we got a quality product and a good price and guarantee. Will definitely be recommending them and using them in the future.

Mike Eric and James installed our furnace and air conditioner in about 6 hours. Everything was done in a professional manner. I highly recommend Gross Heating.

The quality of work done by Gross Heating associates is always 5 Star. I’ve had a boiler replaced, central air conditioning installed, a cast iron radiator replaced and yearly service maintenance done. I’ve always been satisfied and have been using Gross Heating for 15 years. My neighbors have begun to use Gross and agree with me. If you want it done right the first time, call Gross Heating.

We moved into our home last year and had Gross Heating & Air Conditioning put in a brand new furnace and air conditioning unit. In addition, the upstairs had previously been too cool in winter or too hot in summer. We are so pleased with the zoning ducts done to correct this!

I called after hours and someone came out fast and fixed the problem in less than 30 minutes. Even though it was after ours rates, it was still a good value.

I cant say enough about how professional everything was with Gross Heating. The salesman Jeff was extremely informative and professional. The three men doing the install, Brad, Ben, Chris, were the best. All very friendly, very protective of my house, and the install was a show piece. The attention to detail making sure everything was just right was incredible. They went through everything about how to use thermostat, the furnace, air, cleanup. And I thought their pricing was very competitive.I would easily recommend this team and Gross anytime. The best!!!

Great service! Knowledgeable, friendly staff who are professional and kind. Appointments are managed in an organized manner, keeping the customer informed. Thank you!

I had a new furnace installed today by Mike and Paul. They did a wonderful job. They were on time, very efficient, and did an awesome job of cleaning up. They protected my hardwood floors. Installation of the outside piping went amazingly well. Mike went over the operation of the thermostat and demonstrated how to change the filter. They even showed concern about my cat. The whole process went smoothly from getting the estimate with Jeff. He did a thorough job of representing Gross Heating and I was very impressed with his knowledge and skills. My neighbor recommended Gross and I am very glad she did.

We use Gross Heating & Air Conditioning each year to service both our furnaces and air conditioners. Their technicians are always professional, work quickly and efficiently and often offer tips and suggestions for both heating and cooling. At our fall service appointment, the technician -- Randy -- cleaned and thoroughly tested both furnaces... and went a step above by noticing that our water heater appeared to have a small leak at one of the valves. Thanks for the great service, Randy! We highly recommend Gross Heating & Air Conditioning.

I had both furnaces in my duplex replaced by Gross Heating Inc. Everything from getting the estimate from Joe to the installation was flawless. The installers, Brad, Chad, and Ted did an outstanding job start to finish. I highly recommend Gross Heating Inc. We have not used the new furnaces yet, but Im certain the will perform as promised.Joe

Our 21-year-old furnace was on its death bed. As long as we were replacing it, we wanted to add air-conditioning and a humidifier. We got three quotes. Gross not only was the lowest, they quoted a better A/C unit and humidifier. The salesman was more thorough in evaluating our house and suggested a ducting change to make the A/C work more efficiently (included in the quote!). He also offered to loan us electric heaters if the furnace didnt make it till the new one was installed. My wife and I were both impressed with the crew of three plus an electrician -- we heard NO bad language while they were here! Our furnace is located in a dark corner. The electrician added a light while he was doing the re-wiring. Fantastic! I dont see how the experience could have gone any better. We will continue to use Gross in the future and recommend them to anyone who asks.

We purchased a new furnace and AC unit from Gross Heating & Air. The team were really good to deal with from start to finish. They had the best price and the craftsmanship of the install was excellent. The respected our home and left it the way it was before they came inside to do the work. This being my first purchase of new HVAC equipment, I had several questions during the install. The guys took the time to answer my questions without getting agitated. First class install team. I recommend these guys to to anyone.

Everyone was so helpful and friendly in helping us choose the right air conditioner. Brad and Ted were very efficient and thorough in installing and going through the process of making sure the air conditioner was mounted outside to making sure the thermostat was set at a comfortable temperature before they left. They went over their work with me including details such as removing and reinstalling an iron gate to bring the a/c unit to the designated area. I was asked if I had any questions about the a/c unit or anything that they did. They were very respectful. I would definitely recommend Gross Heating & Air Conditioning.

The team from Gross Heating and Air Conditioning did an outstanding job! I now have central air that works. They kept me informed concerning what they were doing, answered all of my questions, and left my home looking better than when they arrived. Real professionals!

Brad and John did a great job, very professional and efficient.

Very professional. They were happy to answer all of my questions. They left the working area as clean as it was when they arrived.

Ive been a customer of Gross Heating since 2005. Exceptional, trusted service. I had a new furnace and AC installed in 2008. Every year Mike would talk me through the condition of my equipment. He was very proactive in keeping me apprised of upcoming warranty items. When it comes to purchasing a new furnace/AC or yearly cleaning and maintenance, Gross Heating is my trusted service provider in the Milwaukee metro area.

Randys service was outstanding and he was so helpful. He very clearly explained what he was doing to my ac and gave me options which I very much appreciated. He was one of the nicest service man Ive ever had.

Mike Leitner was my Service Tech. Our furnace was not running. Mike was friendly, professional and knowable. Mike has a degree in thermal dynamics and is an amazing tech. He fixed the furance within a hour. After fixing it, he also took the time to walk me through all the components of our furnace. A++ Service. Would recommend to anyone.

Ive gotten consistently excellent service from Gross Heating since purchasing a new furnace from them about a year ago. The sales process was hassle free and not pushy at all, the install went smoothly and as discussed, and my first regularly scheduled maintenance appointment just finished up. Everyone Ive worked with from sales, to scheduling and technicians have been warm, professional, knowledgeable and kind. Id recommend them to anyone in the market for a new furnace and will definitely make them my first call when my really old A/C unit finally kicks the bucket!

We had a carrier furnace installed this week by the Gross team. Brad, Chad and Mitch worked well together to accomplish the install in 8 hours. They were friendly, knowledgeable and communicated details during the process. Been using this company for general repairs too. Excellent work ethic and concern for the client exceeded my expectations!

After getting several quotes and speaking with several companies I am beyond thrilled with my decision to go with Gross for my new furnace and air conditioner system.I googled as much as possible about installation and how it should be done and Joe Mechenich was kind enough to answer all my questions and concerns and even came out a second time to speak with me before moving forward.Mike and Justin (I hope I got the names right) came out to do the install for Gross and Joe even popped by again. They did a beyond amazing job with the install.The pipe work that I was dreading how it would look, is amazing!I would have no hesitation in recommending Gross to anyone who would ask, my only regret is how long it took me to hire them!Thank you Joe and all the Gross staff for a wonderful experience!

Our technician Randy was punctual, professional and very knowledgeable about both our air conditioner and radiator heat. We highly recommend his service with Gross Heating & Air Conditioning. Date of service 7/19/19

My technician took the time to educate me on the HVAC system in my new home. He really went above and beyond a normal service call to ensure I understood how my system works and how to care for it.

Gross Heating responded quickly to an emergency and provided service needed -- explaining the issue and recommending/providing the needed fix. A shout out to our tech, Randy B. who was great!!

Brad and Chad of Gross Heating & AC replaced my 15-year old furnace and humidifier as well as the 81-year-old ducts. They were able to improve flow and efficiency while reducing the large old fashioned duct profile. I am thrilled with the result. The smaller footprint will contribute to the overall look for the basement remodel thats coming next. Good communication throughout the process means a very happy customer. Gross is now my go-to place for HVAC service.

Exceptional customer service. Always transparent about costs, on-time for appointments, and helpful explanations of the service being performed. I feel like I can absolutely trust this company to do a great job consistently!