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Licensed general contractors and ADU builders in Diamond Bar

174 contractors with a Diamond Bar 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 Diamond Bar 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 174 licensed general contractors and ADU builders

Order: A–Z by business name (neutral, stated). Showing 1–100.
5 ZERO INC
B · Lic. #1105104 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
A E D CONTRACTORS
B · also A, C-10, C-36 · Lic. #441036 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
A W PIRELLI
B · Lic. #463755 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
ACE PLUMBING CO
B · also C-36 · Lic. #785570 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
ACEMD CORPORATION
B · Lic. #1111963 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
ALLIANT CONSTRUCTION SERVICES INC
B · Lic. #1061441 · Diamond Bar 91765
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
ALPHA CONSTRUCTION SERVICES INC
B · Lic. #1015331 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
AMERICAN RESOURCES CORPORATION
B · Lic. #895201 · Diamond Bar 91765
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
APEX CONSTRUCTION BUILDER INC
B · Lic. #1074739 · Diamond Bar 91765
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
APT CONSTRUCTION INC
B · Lic. #1149695 · Diamond Bar 91765
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
ARKIUS INC
B · Lic. #673454 · Diamond Bar 91765
Workers' comp policy on file
Active — CSLB flag: case or citation pending; workers' comp suspension pending
AVEO INC
B · also A, C-10, C-20, C-36 · Lic. #969881 · Diamond Bar 91765
Workers' comp policy on file
Active — CSLB flag: workers' comp suspension pending
BIG DEMOLITION AND CONSTRUCTION
B · Lic. #1162961 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
BIG ELEPHANT CONSTRUCTION INC
B · Lic. #1031703 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
BIG MANGO RENOVATION INC
B · Lic. #1121648 · Diamond Bar 91765
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
BLUE STAR CONTRACTOR
B · Lic. #1120031 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
C - THIRTY - SIX INC
B · also C-36 · Lic. #739644 · Diamond Bar 91765
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
CABINETS 4 YOU LLC
B · Lic. #1112243 · Diamond Bar 91765
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
CARVE MODULAR CORPORATION
B · Lic. #1154699 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
CASTANEDA CONSTRUCTION
B · Lic. #932830 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
CENTALINE CONSTRUCTION INC
B · Lic. #1145427 · Diamond Bar 91765
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
CFP CONSTRUCTION INC
B · Lic. #700920 · Diamond Bar 91765
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
CONSMA INC
B · Lic. #951561 · Diamond Bar 91765
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
D A S BUILDER INC
B · Lic. #1044031 · Diamond Bar 91765
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
D C M REMODEL SPECIALTIES DBA DOUGLAS CHARLES MALO CONSTRUCTION
B · Lic. #972557 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
D D Y IMPROVEMENT CORP
B · Lic. #925637 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
D R O - WEST CONSTRUCTION
B · Lic. #754069 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
DANIEL C PUN
B · Lic. #866867 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
DATANG BUILDING SERVICE INC
B · Lic. #1103658 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
DAVID LIANG HUA PEH
B · Lic. #882040 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
DAYONE CONSTRUCTION
B · Lic. #1157614 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
DCLOUD HOMES
B · Lic. #1106436 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
DEREK SIM
B · Lic. #977202 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
DONGLIANGLU
B · Lic. #1145119 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
DONGQIANG LU
B · Lic. #1139854 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
DREAM SPACE CONSTRUCTION
B · also C-33 · Lic. #1071725 · Diamond Bar 91765
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
DREAMER CONSTRUCTION AND DEVELOPMENT
B · Lic. #1125664 · Diamond Bar 91765
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
DUKE BUILDERS CORP
B · Lic. #635180 · Diamond Bar 91765
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
DYCONN INC
B · Lic. #1093822 · Diamond Bar 91765
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
DZ PRIME CONSTRUCTION
B · Lic. #1129072 · Diamond Bar 91765
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
ECP CONSTRUCTION
B · Lic. #1150062 · Diamond Bar 91765
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
EDESH ENTERPRISE INC DBA EDESH CONSTRUCTION
B · also C-10, C-15 · Lic. #1020843 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
EVERCRAFT CONSTRUCTION INC
B · Lic. #1122597 · Diamond Bar 91765
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
F S CONSTRUCTION
B · Lic. #928966 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
FALKON CONSTRUCTION INC
B · also A, C-8, D-6 · Lic. #911791 · Diamond Bar 91765
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
FANGZHOU CHEN CONSTRUCTION
B · Lic. #1040290 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
FREDDIE VEGA
B · Lic. #1138185 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
G L CONSTRUCTION GROUP INC
B · Lic. #994049 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
G MILLER DEVELOPMENT CO
B · Lic. #325200 · Diamond Bar 91789
Workers' comp: License does not have current W/C
✓License Verified CSLB file · Oct 20, 2026
GARY & SON CONSTRUCTION
B · Lic. #1138649 · Diamond Bar 91765
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
GIANT PALMS CONSTRUCTION INC
B · also C-33 · Lic. #1072035 · Diamond Bar 91765
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
GRAND SPACE
B · also A · Lic. #1075915 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
GREGORY GEORGE SHOCKLEY
B · Lic. #584514 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
H4 INVESTMENT INC
B · Lic. #950924 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
HAMYA INC
B · Lic. #1125118 · Diamond Bar 91765
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
HAOJIANG ZHENG
B · Lic. #966894 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
HJR CONTRACTING INC
B · also C-20 · Lic. #1041548 · Diamond Bar 91765
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
HOFFICE BEAUTIFUL INC
B · also C-15 · Lic. #965248 · Diamond Bar 91765
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
HOME BUILDERS INCORPORATED
B · Lic. #1047096 · Diamond Bar 91765
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
HONG CONSTRUCTION
B · Lic. #1142230 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
HONG DING CONSTRUCTION INC
B · Lic. #1038313 · Diamond Bar 91765
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
HSU - DA WANG
B · also C-6 · Lic. #712058 · Diamond Bar 91765
Workers' comp: License does not have current W/C
✓License Verified CSLB file · Oct 20, 2026
HSUEH YU LIAO
B · also C-10, C-36 · Lic. #769733 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
HUAMEI CONSTRUCTION INC
B · Lic. #1051093 · Diamond Bar 91765
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
ICHIEN CHEN
B · Lic. #1080792 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
ISRE INTERACT SOLUTIONS REAL ESTATE
B · also A, D-6, D-12 · Lic. #1066181 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
J L J CONSTRUCTION
B · Lic. #817273 · Diamond Bar 91765
Workers' comp policy on file
Active — CSLB flag: case or citation pending
JAE DO LEE
B · Lic. #1140383 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
JAMIE JINZUO HUANG
B · Lic. #1055726 · Diamond Bar 91789
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
JAY ARORA
B · also C-54 · Lic. #512179 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
JH BUILDER AND REMODELING INC
B · also C-16, C-36 · Lic. #751479 · Diamond Bar 91765
Workers' comp policy on file
Active — CSLB flag: workers' comp suspension pending
JIANCAI CONSTRUCTION INC
B · Lic. #1141118 · Diamond Bar 91765
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
JIFENG YAO
B · Lic. #945757 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
JKZ GROUP INC
B · Lic. #1080141 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
JOE CLEDERA ABLAY
B · Lic. #629389 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
JOE CONSTRUCTION GROUP
B · Lic. #1140095 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
JONATHAN KO
B · Lic. #939589 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
JONGHYUN PARK
B · Lic. #1071186 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
JORGE LAMBARENA
B · Lic. #759138 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
JT PROJECT MANAGEMENT INC
B · Lic. #1116801 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
JUSTPRIME CONSTRUCTION INC
B · Lic. #1153105 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
KACHUNG NG
B · Lic. #547015 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
KAI XIA
B · Lic. #1018407 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
KERTLAND ROOFING INC
B · also C-39 · Lic. #510174 · Diamond Bar 91765
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
KITCHEN AND FLOORING CENTER INC
B · also C-54 · Lic. #968078 · Diamond Bar 91789
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
KUN HO SHIN
B · Lic. #1161518 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
L L L DEVELOPMENT INC
B · Lic. #923665 · Diamond Bar 91765
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
LA ELECTRICAL & CONSTRUCTION INC
B · also A, C-10 · Lic. #1119000 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
LD CONSTRUCTION
B · Lic. #1154620 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
LEXAR CONSTRUCTION
B · Lic. #1074012 · Diamond Bar 91765
Workers' comp policy on file
✓License Verified CSLB file · Oct 20, 2026
LHW CONSTRUCTION INC
B · Lic. #1095664 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
LIANG ZHOU
B · Lic. #982880 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
LILI SHENG
B · Lic. #1163154 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
M & E MANAGEMENT GROUP INC
B · Lic. #969068 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
M D B DESIGN ASSOCIATES
B · Lic. #653762 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
M S T GROUP INC DBA M S T CONSTRUCTION
B · also C-10 · Lic. #837086 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
M T QUALITY CONSTRUCTION
B · also C-33 · Lic. #586957 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
MCDONALD CONSTRUCTION
B · Lic. #870492 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
MENGQI CONSTRUCTION
B · Lic. #1150260 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026
MICHAEL STEVEN FEDOROW
B · also C-36 · Lic. #652125 · Diamond Bar 91765
Workers' comp: exempt
✓License Verified CSLB file · Oct 20, 2026