California › Lassen County › General Building & ADU › Janesville

Licensed general contractors and ADU builders in Janesville

15 contractors with a Janesville 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 Janesville 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 Janesville 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 15 licensed general contractors and ADU builders

Order: A–Z by business name (neutral, stated). Showing 1–15.
COLBERT AND SON
B · Lic. #433374 · Janesville 96114
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
CORNERSTONE BUILDING INC
B · Lic. #1136487 · Janesville 96114
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
ELITE CONSTRUCTION
B · Lic. #1069813 · Janesville 96114
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
FAYTAK CONSTRUCTION
B · Lic. #822406 · Janesville 96114
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
FRONTIER BUILDERS
B · Lic. #1134405 · Janesville 96114
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
JMH CONSTRUCTION SERVICES INC
B · also C-42 · Lic. #917787 · Janesville 96114
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
KELLOGG CONSTRUCTION
B · Lic. #859661 · Janesville 96114
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
KRAUSE CONSTRUCTION
B · Lic. #922895 · Janesville 96114
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
LEGACY BUILDING AND EXTERIORS
B · Lic. #1133778 · Janesville 96114
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
LEWIS CONSTRUCTION
B · Lic. #798616 · Janesville 96114
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
LYUBIK'S CONSTRUCTION INC
B · Lic. #1101650 · Janesville 96114
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
RESIDENTIAL MAINTENANCE SERVICES
B · Lic. #921915 · Janesville 96114
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
SCHORTZ ENTERPRISE
B · also C-47 · Lic. #849907 · Janesville 96114
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
SUN SHINE CONSTRUCTION
B · Lic. #1109950 · Janesville 96114
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
THOMPSON PEAK CONSTRUCTION
B · Lic. #1112956 · Janesville 96114
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026