Licensed Contractors in Ontario, CA
918 contractors on file from California state licensing board. Showing top 50 — use trade pages below to browse the full list. Page 2 of 3.
Data source: California state contractor licensing board public records. We do not compute trust scores or rank contractors. Verify current license status directly with the state licensing board.
Browse by trade:General Building (7)General Engineering (6)Painting & Decorating (5)HVAC (3)Cabinet & Millwork (2)D12 (2)Concrete (2)Landscaping (2)Electrical (2)Plumbing (2)Electrical Sign (2)Structural Steel (2)
R B M LOCK & KEY SERVICE
Lock & Security
Ontario, CA
License active38 yrs active
AIRITE HEATING AND AIR CONDITIONING INC
Boiler & Steam
Ontario, CA
License active61 yrs active
PASCAL & LUDWIG CONSTRUCTORS INC
General Engineering
Ontario, CA
License active47 yrs active
CANO ARCHITECTURE CONCRETE REPAIR
General Building
Ontario, CA
License active44 yrs active
BAYWOOD CONSTRUCTION CO
General Building
Ontario, CA
License active44 yrs active
AJB CONCRETE & MASONRY CONSTRUCTION
Concrete
Ontario, CA
License active41 yrs active
LIGTENBERG MARK
Electrical
Ontario, CA
License active41 yrs active
G & G PLUMBING
Plumbing
Ontario, CA
License active39 yrs active
P V & C PLUMBING AND PIPING INC
Plumbing
Ontario, CA
License active38 yrs active
CALI CONSTRUCTION
B-2
Ontario, CA
License active13 yrs active
SPRAGGINS A C ENGINEERING & UNDERGROUND INC
General Engineering
Ontario, CA
License active46 yrs active
PACKS CONSTRUCTION
General Building
Ontario, CA
License active42 yrs active
L M I
Glazing
Ontario, CA
License active41 yrs active
SHAMROCK LANDSCAPE & MAINTENANCE
Landscaping
Ontario, CA
License active39 yrs active
A-C POWER SYSTEMS
Electrical
Ontario, CA
License active39 yrs active
TEMPLE ROBERT EDWARD
Painting & Decorating
Ontario, CA
License active38 yrs active
SIGNS OF SUCCESS
Electrical Sign
Ontario, CA
License active38 yrs active
WESTERN METAL DECK
Structural Steel
Ontario, CA
License active37 yrs active
AIR CONTROL SPECIALTIES INC
HVAC
Ontario, CA
License active37 yrs active
MASTER BUILDING SPECIALTIES INC
D34
Ontario, CA
License active35 yrs active