Great people! Always accommodating with a busy schedule. A bit on the pricey side, but well worth it for the consistency and reliability.

Its less and less common to have such a great resource like Diamond K close by. For landscape professionals and homeowners alike its a godsend. They stock everything youll need to develop a landscape except low voltage lighting and wood for decks and fences etc. If you need stone, boulders, brick, slate, soil, decomposed granite drainage rock and pipe, filter fabric or weed barrier or irrigation parts or masonry supplies and tools...etc.. etc... you are in luck! They have much more than that as well Im certain. They deliver and are open early. The staff are knowledgeable and kind. Shop Local. We need businesses like Diamond K to remain!

Need gravel or sand? Go to the rock quarry in Martinez, a full load is less than 1 yard at this place!

Great landscape materials

If you need rocks of any kind or size, this is the place! Wonderful selection, great prices and the service is even better.Update...They seem to now not really care. So sad they used to be much better. Their prices are higher now, too.

Decent selection of materials and good service. Prices are good considering they are in Lafayette. If you want a bigger selection or prices, youll have to drive.

Diamond K carries varieties of rocks, bricks, gravel, decomposed granite, and landscaping tools and supplies (i.e. for drainage, irrigation). The guys who work there are very helpful and knowledgeable. They deliver locally.

He have everything that you need to do your Landscaping project and also have great prices and great Staffing great attitude

They sell firewood, Oak but it must have been sitting out in the rain since it barely burns. I usually get Almond from Angels but ran out and needed some for two weeks. I have been burning wood for heat for years and have never had any trouble getting a fire roaring...except for this wood.Sorry I went for this wood.

IF you need gravel, stone, flag stone, mulch, top soil, go there, they are local!

Very good service

Good service from the staff and premium quality material

Very good place to shopFor the construction.