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Licensed general contractors and ADU builders in Ontario · page 4 of 4

325 contractors with a Ontario 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 Ontario 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 Ontario 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 325 licensed general contractors and ADU builders

Order: A–Z by business name (neutral, stated). Showing 301–325.
VANEDI HOME IMPROVEMENT INC
B · Lic. #1147022 · Ontario 91764
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
VAREZ CONSTRUCTION INC
B · Lic. #1138147 · Ontario 91762
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
VELTEL INFRASTRUCTURE SERVICES LLC
B · also C-10, C-20 · Lic. #1049531 · Ontario 91764
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
VGC
B · Lic. #1138625 · Ontario 91761
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
VICTOR OROZCO CONSTRUCTION
B · Lic. #982481 · Ontario 91762
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
VICTOR ROMERO
B · Lic. #911371 · Ontario 91762
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
VILLA GENERAL CONTRACTING
B · Lic. #1114540 · Ontario 91762
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
VLP DESIGN BUILD
B · Lic. #1111387 · Ontario 91761
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
W M CONSTRUCTION GROUP INC
B · Lic. #1104199 · Ontario 91761
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
WAVCOMM
B · also C-10 · Lic. #724434 · Ontario 91761
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
WEST BAY GENERAL CONSTRUCTION
B · Lic. #779015 · Ontario 91764
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
WEST UNITED BUILDER
B · Lic. #1039373 · Ontario 91761
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
WESTSIDE PRO BUILDERS
B · Lic. #1116368 · Ontario 91761
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
WH JEWETT INC
B · also C-8 · Lic. #975875 · Ontario 91761
Workers' comp: via leasing/temp firm
✓License Verified CSLB file · Oct 20, 2026
WISKIND CONSTRUCTION INC
B · Lic. #1137238 · Ontario 91761
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
WKA GROUP INC
B · also C-10 · Lic. #1134050 · Ontario 91761
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
WOLF WINDOWS AND DOORS
B · Lic. #1157111 · Ontario 91761
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
Y&D GENERAL SERVICES
B · Lic. #1127476 · Ontario 91762
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
YACKO CONSTRUCTION INC
B · also A · Lic. #1012085 · Ontario 91762
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
YICUN CONSTRUCTION
B · Lic. #1098350 · Ontario 91761
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
YOUNG C LEE
B · also C-17 · Lic. #867519 · Ontario 91764
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
Z1 CONSTRUCTION
B · Lic. #1064551 · Ontario 91761
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
ZHIYONG MENG
B · Lic. #1046125 · Ontario 91762
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
ZHIYUAN LI CONSTRUCTION
B · Lic. #1158107 · Ontario 91761
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
ZIENIX PROPERTY SERVICES
B · Lic. #1142312 · Ontario 91761
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026