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Licensed general contractors and ADU builders in Ontario · page 2 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 →
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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 →

All 325 licensed general contractors and ADU builders

Order: A–Z by business name (neutral, stated). Showing 101–200.
ENHANCED ROOFING INC
B · also C-39 · Lic. #1120148 · Ontario 91761
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
ER5 CONSTRUCTION INC
B · Lic. #1125259 · Ontario 91761
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
ERIC HURFORD CONSTRUCTION
B · Lic. #806297 · Ontario 91761
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
ERNESTO BARBERI
B · Lic. #959795 · Ontario 91761
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
EVIES INTERNATIONAL INC
B · Lic. #924532 · Ontario 91761
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
EXACTO BUILDERS
B · Lic. #929047 · Ontario 91764
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
EXCELL CONSTRUCTION INC
B · Lic. #1011262 · Ontario 91761
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
EYE ON BUILDERS
B · also C-27 · Lic. #977924 · Ontario 91762
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
FANGWEN HAN
B · Lic. #1138190 · Ontario 91762
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
FH II HOMEBUILDERS INC
B · Lic. #985046 · Ontario 91764
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
FIXD CONSTRUCTION CO
B · Lic. #1140628 · Ontario 91762
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
FLORES BUILDING
B · Lic. #850742 · Ontario 91764
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
FORD BROTHERS FRAMING INC
B · Lic. #1010193 · Ontario 91761
Workers' comp: via leasing/temp firm
✓License Verified CSLB file · Oct 20, 2026
FORTE PAINTERS AND GENERAL CONSTRUCTION
B · also C-33, C-35 · Lic. #980663 · Ontario 91764
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
FOSSA GROUP INC
B · Lic. #1073119 · Ontario 91761
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
FOUNDATION DESIGN & BUILD
B · Lic. #1159121 · Ontario 91764
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
FOXTROT CONSTRUCTION
B · also A, C-10, D-40, HAZ · Lic. #1035680 · Ontario 91764
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
FREEDOM 21 CONTRACTORS INC
B · Lic. #1080326 · Ontario 91761
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
FUENTES CONSTRUCTION CO
B · Lic. #902863 · Ontario 91762
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
FULLMER CONSTRUCTION
B · Lic. #301814 · Ontario 91761
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
GABE'S GENERAL CONSTRUCTION
B · Lic. #1122112 · Ontario 91762
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
GC CONSTRUCTION & FIRE PROTECTION INC
B · also A, C-16 · Lic. #1113745 · Ontario 91762
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
GEORGE ALFRED EDGINTON
B · also C-7 · Lic. #784411 · Ontario 91761
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
GIBIN REMODELING INC
B · also C-6, C-15 · Lic. #1027816 · Ontario 91761
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
GOLDEN LEAF CONSTRUCTION INC
B · also C-53 · Lic. #876099 · Ontario 91761
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
GOLDEN ONE CONSTRUCTION & COATING
B · also C-33 · Lic. #1145410 · Ontario 91762
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
GOLDEN STAR CONSTRUCTION SERVICES
B · Lic. #872650 · Ontario 91762
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
GOLDEN WEST CONSTRUCTION GROUP
B · Lic. #1118751 · Ontario 91761
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
GREEN REMODEL SOLUTIONS
B · also C-10 · Lic. #1012326 · Ontario 91761
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
GROUNDBREAKING DESIGN BUILDING
B · Lic. #1087605 · Ontario 91761
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
HAVEN KING CONSTRUCTION
B · Lic. #1115816 · Ontario 91762
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
HB CONSTRUCTION
B · Lic. #1047800 · Ontario 91762
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
HDC CONSTRUCTION INC
B · also C-9, C-54 · Lic. #802646 · Ontario 91762
Workers' comp policy on file
Active — CSLB flag: workers' comp suspension pending
HDZ CONSTRUCT INC
B · Lic. #1144932 · Ontario 91762
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
HDZ CONSTRUCTION INC
B · Lic. #1132126 · Ontario 91761
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
HERITAGE DESIGN & BUILD LLC
B · also C-10 · Lic. #1131358 · Ontario 91762
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
HERITAGE DESIGN BUILD AND CONSULTING
B · also C-10 · Lic. #991737 · Ontario 91762
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
HERRON CONSTRUCTION INC
B · Lic. #592387 · Ontario 91761
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
HHS CONSTRUCTION LLC
B · also A, C-7, C-10, C-31 · Lic. #818906 · Ontario 91761
Workers' comp policy on file
Active — CSLB flag: "Pending IFS"; workers' comp suspension pending; suspension pending, dated 11/30/2026
HIGH QUALITY GROUP
B · Lic. #938452 · Ontario 91762
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
HIGH RIDGE CONSTRUCTION INC
B · also C-33 · Lic. #1028395 · Ontario 91764
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
HILLWOOD CONSTRUCTION SERVICES OF CALIFORNIA L P
B · Lic. #865674 · Ontario 91764
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
HIYAWILL CONSTRUCTION INC
B · Lic. #1148677 · Ontario 91764
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
HO SOO YOO
B · also C-10, C-36, C-38 · Lic. #703553 · Ontario 91762
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
HOSTETLER CONSTRUCTION
B · Lic. #532843 · Ontario 91762
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
HR GARCIA CONSTRUCTION INC
B · Lic. #1050598 · Ontario 91761
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
HY GLOBAL LLC
B · Lic. #1072321 · Ontario 91762
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
HYDROGEN CONSTRUCTION
B · Lic. #1106675 · Ontario 91762
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
IEGB HOME BUILDERS INC
B · Lic. #1156949 · Ontario 91761
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
INLAND DESIGN BUILD
B · also A · Lic. #1005429 · Ontario 91762
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
INTER-CITY ENERGY SYSTEMS INC
B · also C-10, C-20, C-36 · Lic. #587709 · Ontario 91764
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
INTERIOR EXPERTS GENERAL BUILDERS INC
B · also C-9 · Lic. #638437 · Ontario 91761
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
ISLAND CONSTRUCTION & MAINTENANCE
B · also C-10, D-40, HAZ · Lic. #667042 · Ontario 91761
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
ISLAND PETROLEUM BUILDERS INC
B · also C-10, D-40, HAZ · Lic. #776846 · Ontario 91761
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
J ELIAS ENTERPRISES INC DBA J & J INDUSTRIAL SERVICES
B · also C-10, D-21, D-28 · Lic. #814328 · Ontario 91761
Workers' comp policy on file
Active — CSLB flag: renewal received
J L G CONSTRUCTION
B · Lic. #683195 · Ontario 91762
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
J P ADDISON CONSTRUCTION INC
B · Lic. #1029562 · Ontario 91764
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
J P LA BARGE CONSTRUCTION MANAGEMENT
B · Lic. #760763 · Ontario 91761
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
J&N MAINTENANCE SERVICES
B · Lic. #1147841 · Ontario 91762
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
JA CONSTRUCTION INC
B · Lic. #1060402 · Ontario 91761
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
JAKE SANDOVAL DBA CLEARWATER PLUMBING & CONSTRUCTION
B · also C-36 · Lic. #980596 · Ontario 91762
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
JAVIER TAVARES ORNELAS
B · also C-15 · Lic. #1067792 · Ontario 91764
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
JCC CONSTRUCTION
B · Lic. #1067037 · Ontario 91764
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
JCSV BUILDERS INC
B · Lic. #1134819 · Ontario 91762
Workers' comp policy on file
Active — CSLB flag: workers' comp suspension pending
JE HOME CONSTRUCTION
B · Lic. #1078677 · Ontario 91762
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
JESSE'S IRON WORKS
B · also C-23 · Lic. #792073 · Ontario 91762
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
JEWEL CONSTRUCTION INC
B · Lic. #915742 · Ontario 91764
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
JFP CONSTRUCTION COMPANY INC
B · Lic. #965462 · Ontario 91761
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
JN CONSTRUCTION INC
B · also A, C-10, C-16, C-20… · Lic. #1001396 · Ontario 91762
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
JNSD CONSTRUCTION INC
B · also C-10, C-16, C-36 · Lic. #1080741 · Ontario 91762
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
JOCAEL PALOMINO
B · Lic. #644395 · Ontario 91761
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
JOD DOMINGUEZ
B · Lic. #1084844 · Ontario 91761
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
JOHN FITZGERALD DEVINE
B · Lic. #934292 · Ontario 91762
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
JOHN YACKO
B · also A · Lic. #764923 · Ontario 91762
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
JOHNNIE RIGHTMER
B · Lic. #929338 · Ontario 91764
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
JORCAST ENTERPRISES INC
B · Lic. #559980 · Ontario 91762
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
JOSEPH CONSTRUCTION
B · Lic. #674654 · Ontario 91761
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
JULAN HAO
B · also C-20 · Lic. #1083815 · Ontario 91761
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
JW BUILDERS INC
B · Lic. #1015948 · Ontario 91762
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
K A R CONSTRUCTION INC
B · also C-8 · Lic. #595709 · Ontario 91762
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
K P CONSTRUCTION CO INC
B · also C-8, C-51 · Lic. #790555 · Ontario 91761
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
KEMCORP CONSTRUCTION INC
B · also A · Lic. #934522 · Ontario 91761
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
KEN LEE
B · Lic. #1138718 · Ontario 91764
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
KLAUS NORBERT KRAEMER
B · Lic. #529570 · Ontario 91761
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
KOGUMA SWEET HOME
B · Lic. #1150188 · Ontario 91764
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
KORNERSTONE CONSTRUCTION
B · Lic. #1162745 · Ontario 91764
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
KP BUILDERS
B · also C-51 · Lic. #983861 · Ontario 91784
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
KYLE YANG CONSTRUCTION
B · Lic. #1085591 · Ontario 91764
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
L D M CONSTRUCTION SERVICES
B · also D-34 · Lic. #957993 · Ontario 91761
Workers' comp policy on file
Active — CSLB flag: workers' comp suspension pending
LASSITER CONSTRUCTION
B · Lic. #758267 · Ontario 91764
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
LEE'S GENERAL CONSTRUCTION CORP
B · Lic. #1056618 · Ontario 91762
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
LEGEND CONSTRUCTION SERVICES INC
B · also C-8, C-39 · Lic. #1038753 · Ontario 91761
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
LEO HAO LIU
B · Lic. #1101645 · Ontario 91762
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
LEOTHACUE ENTERPRISES INC
B · also A · Lic. #1025024 · Ontario 91762
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
LIFE BUILDERS
B · Lic. #842842 · Ontario 91764
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
LIGHTHOUSE CONSTRUCTION & REMODEL
B · Lic. #986212 · Ontario 91761
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
LINX CONSTRUCTION INC
B · Lic. #1079357 · Ontario 91761
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
LIONEL RODIRGUEZ
B · also C-27 · Lic. #1153852 · Ontario 91762
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
LOS SERRANO CONSTRUCTION
B · Lic. #1012653 · Ontario 91761
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
LOUIS JOSEPH ENRIQUEZ
B · Lic. #627102 · Ontario 91764
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026