California › Lake County › General Building & ADU › Clearlake Oaks
Licensed general contractors and ADU builders in Clearlake Oaks
5 contractors with a Clearlake Oaks 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 Clearlake Oaks 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 Clearlake Oaks 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 5 licensed general contractors and ADU buildersOrder: A–Z by business name (neutral, stated). Showing 1–5.
ANTHONY SAMUEL MARTINEZ DBA ASM CONSTRUCTION
B · Lic. #752509 · Clearlake Oaks 95423
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
DON COWDEN CONST INC
B · also C-9 · Lic. #550387 · Clearlake Oaks 95423
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
DOUGLAS SNYDER
B · Lic. #872728 · Clearlake Oaks 95423
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
RON SUGIMOTO CONST
B · Lic. #437665 · Clearlake Oaks 95423
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
SUMNER CONSTRUCTION
B · Lic. #786894 · Clearlake Oaks 95423
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026