M&M circuit breakers was fantastic they were very very informational got me the right part hard to find with information and send me on my way thank you M&M circuit breakers

I am a long time customer and they treat me great!They are a very good source for breakers

If you like your money and don’t want to give it away, then stay away from this place .

Good selection/inventory. Nice that theyre open on Saturday BUT on an ON CALL BASIS so CALL FIRST!!!

I was send here from Home Depot. I’m glad they send me here. Frank the salesman help me find the product I needed for my home. I didn’t know what I needed and just show him pictures on my phone of the panel and he solved the problem I was having. He was very patient and provided good service. Will be definitely coming back here.

Couldnt find a breaker anywhere else Home Depot referred me to this company and boy am I thankful. No one else carried this obsolete breaker!! The old man is very knowledgeable he warranties his products. Will definitely be back

Couldnt find someone to help me find the correct breaker at Ace or Home Depot until we came here. The owner was nice, informative and helped us get the correct breaker. I will definitely be coming back for our electrical supply needs!

Friendly and Courteous customer service. They gave me some great advice for my electrical panel problem and had the breaker I couldnt find anywhere else. Everybody at this place seems dedicated to providing good customer service for a fair price. I will definitely be back.

I currently live in an old property in Upland built in 1954. I was looking for a circuit breaker for almost a week. My neighbor who had the same situation referred me to M&M Circuit Breaker. I was very impress of there inventory and how helpful there were. I was able to find the circuit breaker I needed which they called absolute and was given warranty for it. The warranty on a rebuilt breaker was excellent and the return policy was reasonable. I will be returning back to this guys for my electrical needs and would highly recommend this place friends and family.

M&M Circuit Breakers, has friendly and knowledgeable staff. Delivery the product when I need it, they always have what I am looking for in stock, great product and service, will recommend to anybody. The warranty on their products is excellent. Love there 24 hours service at no extra charge. Thank you M&M Circuit Breakers!!!

Outstanding service!! They dont just sell you a product, they educate you to make a solid decision! Highly recommend for any electrical needs!

A friend of mine recently refereed me to this place when my electricity went out in the middle of summer. It was after hours, and I called the number on the website. The person whom I spoke to was very helpful and met me at their location within 30 minutes. I was a bit unsure of what exactly I might need but the guy who showed up knew exactly what I needed as soon as I told him about my problem. I dont normally leave reviews but something about how I was treated made me want to leave one.Thanks M & M!!!

Dont be a fool like I was.Bought a used 120 volt 20 amp circuit breaker for my house, Because of my lack of knowledge in cost, they charged me $25 plus tax for an item I can pay only $5 for all day long at Home Depot or any other retailer. Yes I was a fool today.Dont let this happen to you.Stay far away from this place.

Called for a 50amp 2 pole breaker. Wanted to charge me 125.00. Western enterprises riverside. Same breaker 49.00. These guys trying to become rich of one job!!! Good breaker stores: orange county breakers, santa ana breakers, western enterprises.

BUYERS BE A WARE ....!!!!!!!! Bought refurbished breaker way over priced.... should have went online first to price compare... same used breaker paid$450 plus tax and found the same breaker online used for $48. Plus $11. For shipping.... do your research before you commit your self from buying from these crooks.... very sad that this place is still in business..... BUYER BE A WARE!!!!!!

Great place to get hard to find electrical breakers and great advice from knowledgeable staff. They can custom make electrical components too

I would HIGHLY RECOMMEND M & M Circuit Breakers to anyone who is looking for phenomenal customer service, knowledgeable salesman, affordable prices, and tested products backed with warranty!!My experience with mariano was very outstanding. A couple months ago I walked into M&M looking for a few Zinsco breakers that I needed for my home in Rancho Cucamonga and he immediately knew the style of breakers I needed based on the specifics I told him and images shown. Mariano also educated me on how the china breakers that most home improvement stores and breaker houses carry are no bueno, along with the problems that the customers who have previously purchased those china breakers have encountered. His prices were reasonable and affordable considering that the breakers were original zinsco. Keep in mind im the type who likes to shop around for prices. Sadly most places that I called only offered me the china replacement breaker and warned me that Zinscos are absolete now in which would be hard to find. 6 months later, no problems encountered with both breakers, amen jesus.Thank you M&M for your outstanding customer service and very honest staff. I will most definitely be recommending friends and family to you for all their electrical supply needs. God Bless!

I usually dont write reviews, however my experience at this shop wqs great. The sales rep really helped me out. They have a wide variety of breakers in stock. Thry carry new and reconditioned. If you are on a budget, the reconditioned is a great deal, basically brand new and comes with warranty.

Avoid these guys. They do not stand behind their product. Way over priced and will not let you return what they sold you. AVOID THIS COMPANY!

Way over priced and has no customers service. Go somewhere else.

Awesome service, the staff was very helpful and knowledgeable.

Stay away from this business. The owner is a thief, and takes advantage of elderly people. He charged my father $53.00 for a $3.00 fuse, and refused to allow us to return it 20 minutes later.

The store charge me three times the amount what the item is worth.

Bad