Diamond K Supply, Ltd.


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Website | (925) 284-4477
3671 Mount Diablo Blvd, Lafayette, CA 94549, USA

Opening Hours:
Monday: 7:00 – 11:30 AM, 12:00 – 3:30 PM
Tuesday: 7:00 – 11:30 AM, 12:00 – 3:30 PM
Wednesday: 7:00 – 11:30 AM, 12:00 – 3:30 PM
Thursday: 7:00 – 11:30 AM, 12:00 – 3:30 PM
Friday: 7:00 – 11:30 AM, 12:00 – 3:30 PM
Saturday: Closed
Sunday: Closed

Area Served:
Within 4 miles (6.4km) of 3671 Mount Diablo Blvd, Lafayette, CA 94549, USA
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Google Rating: 4.4 out of 5 stars (28 total ratings)

Kristina McCann
5 Star
Easy delivery options, the guys are always nice for a large or small order. I'm a Realtor in town and always pop by with lots of random questions. Ordering is the same whether you spend $100 or $5000. I really like the staff. Easy to park, easy to navigate. We are lucky this is right in town.
Tuesday 18th July 2023
Michael Weber
5 Star
Kevin, Oscar and the entire Diamond K Team are always extremely helpful! Their dedication to hard work is one of the only things that allows Halcyon to function at the high level of output that we do, while keeping consistency with their great products! Thanks again Diamond K!!!!
Monday 27th February 2023
Matt Charlot
5 Star
It's less and less common to have such a great resource like Diamond K close by. For landscape professionals and homeowners alike it's a godsend. They stock everything you'll 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 I'm certain. They deliver and are open early. The staff are knowledgeable and kind. Shop Local. We need businesses like Diamond K to remain!
Monday 3rd May 2021
Jim Giusti
3 Star
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.
Saturday 20th September 2014
Treasure Trovel
5 Star
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.
Friday 9th June 2017