California › Contra Costa County › General Building & ADU › Knightsen
Licensed general contractors and ADU builders in Knightsen
7 contractors with a Knightsen mailing address hold an active (CLEAR) CSLB B General Building license in CSLB's license file dated Oct 20, 2026. Get quotes from up to 3 of them →
A B General Building license covers jobs with two or more unrelated trades, like an ADU, an addition or a remodel. A B contractor can't take a stand-alone plumbing, electrical or roofing job unless they also hold that specialty license or subcontract it to someone who does.
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A Featured spot on this general building & adu page for Knightsen is a paid ad for a License Verified contractor, labeled "Ad" every time. It sits apart from the directory and never changes the order below. From $49/mo. Join the waitlist →
Ad space · openAdvertise here
A Featured spot on this general building & adu page for Knightsen is a paid ad for a License Verified contractor, labeled "Ad" every time. It sits apart from the directory and never changes the order below. From $49/mo. Join the waitlist →
All 7 licensed general contractors and ADU builders
Order: A–Z by business name (neutral, stated). Showing 1–7. BAY CITIES CONSTRUCTION
B · Lic. #852300 · Knightsen 94548
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
BLUE DRAWINGS CONSTRUCTION INC
B · Lic. #1154640 · Knightsen 94548
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
DANIEL BRYAN GREESON
B · also C-4, C-10, C-20, C-36… · Lic. #804690 · Knightsen 94548
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
NORCAL SUPREME BUILDER
B · Lic. #1093823 · Knightsen 94548
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
RD CONSTRUCTION & PLUMBING INC
B · Lic. #1119169 · Knightsen 94548
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
STEP AHEAD CONSTRUCTION SERVICES
B · Lic. #1016216 · Knightsen 94548
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
WEST COAST PRESERVATION
B · Lic. #938164 · Knightsen 94548
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026