Updated: Apr 11, 2026
Location
Address
1015 Lincoln Way, San Francisco, CA, 94122
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in the Mix Concrete Design
in the Mix Concrete Design at 1015 Lincoln Way, San Francisco, CA 94122, held a Concrete Contractor license (#998654) with the California contractors license board with an expiration date of 11-30-2016. We last verified the license was expired on 04-10-2026.
Their BuildZoom score is 0 because we haven’t been able to verify an active license. As a result, they’re not ranked in the top 50% of 336,931 California contractors.
If you’re thinking about hiring them, we recommend double-checking their license status with your local licensing authority. Alternatively, use our bidding system to be easily matched to qualified, licensed professionals in your area.
in the Mix Concrete Design Services
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in the Mix Concrete Design Contact Information
Phone Number: (929) 245-6615
Address: 1015 Lincoln Way, San Francisco, CA 94122
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in the Mix Concrete Design License info
Inactive License
| License # | 998654 |
| Status | Inactive |
| State | California |
| Type | Concrete |
| Business Type | Sole Ownership |
- According to the California Contractors State License Board, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for in the Mix Concrete Design at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
ALERT*
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Bonded
| Bonded Agent | Western Surety Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Aig Property Casualty Company |
in the Mix Concrete Design Employees
KC
Kenneth Joseph Collins
Sole Owner
BLISTERS and BUBBLES all over the floor, after only 6 weeks of Ken putting a new epoxy concrete floor in our home (see attached pictures). We were furious to see the floor, but were even more flabbergasted when Ken blatantly refused to take responsibility. He ordered my husband to take moisture test, at our own cost, and report back to him before he would come out and take a look! We are homeowners, not contractors. Making sure that the prep work is properly done including testing the moisture level is the responsibility of the contractor, not homeowners. And no matter how you want to twist it, no 'good floor' should go blistered and bubbled after only 6 weeks. Ironically, he is using our floor picture on his facebook portfolio, even here on Yelp (see pic dated Oct 8) - LOL.
Furthermore Ken kept adding price along the way: Epoxy Materials now increased from $6/foot to $8/foot, workers quit on him and we had to pay part time workers he picked up. Final invoice came up way more than the original quote, with overtime payment for Ken himself!
I wish we never used his service. Now not only we have to pay another contractor to redo the floor, but also an additional charge to remove the one that In the Mix aka Ken did!
http://www.yelp.com/biz/in-the-mix-concrete-san-francisco