These contractors have SiteVetter Safety Scores of 85+ out of 100, indicating strong compliance with licensing, insurance, bonding, and federal requirements.
A SiteVetter Safety Score is a proprietary 0-100 compliance rating that aggregates contractor data from six sources: California Contractors State License Board (CSLB), SAM.gov federal exclusions, OSHA safety inspections, Department of Labor wage records, EPA environmental compliance, and building permit records from major California cities. In Rancho Cucamonga, CA, 50 contractors currently hold Safety Scores of 85 or above, qualifying them as “top-rated” for 2026.
Our Safety Score aggregates data from 6 sources: CSLB license status, workers' compensation coverage, contractor bonding, federal databases including SAM.gov (debarment), OSHA (safety violations), DOL (wage violations), and building permits. Scores of 85+ indicate contractors with active licenses, proper insurance, and clean federal records.
Ranked by SiteVetter Safety Score, highest first
Gunby INC
License #937732 · C39
Grade A · Excellent
Gus Electric INC
License #960644 · C10
Grade A · Excellent
U S a Plumbing Service Incorporated
License #961844 · C36
Grade A · Excellent
Premier Service Group Enterprise INC
License #975801 · C20
Grade A · Excellent
Dunn Plumbing Heating & Air Conditioning INC
License #712182 · C20
Grade A · Excellent
K C E Electric INC
License #506736 · C10
Grade A · Excellent
MC Leod Scott Plumbing INC
License #678352 · C36
Grade A · Excellent
RC Air LLC
License #445508 · C20
Grade A · Excellent
Islas Excavating & Demo
License #287257 · C12
Grade A · Excellent
Montgomery Hardware CO
License #285746 · B
Grade A · Excellent
Air Conditioning Engineering INC
License #236962 · C20
Grade A · Excellent
Baldy Electric INC
License #318457 · A
Grade A · Excellent
J R N Engineering
License #357442 · A
Grade A · Excellent
Goss Construction CO INC
License #378377 · A
Grade A · Excellent
Bobs Roofing
License #384575 · C39
Grade A · Excellent
Trl Systems Incorporated
License #413747 · C10
Grade A · Excellent
Harrington Construction CO INC
License #463572 · B
Grade A · Excellent
Owen Electric INC
License #468212 · C10
Grade A · Excellent
Passage Supply INC
License #471431 · B
Grade A · Excellent
Superior Tank CO INC
License #472119 · A
Grade A · Excellent
R E F Industries INC
License #480175 · C43
Grade A · Excellent
Akita Mitsuyoshi
License #485220 · B
Grade A · Excellent
Sonwest Air Conditioning INC
License #486917 · C20
Grade A · Excellent
Ram - CO INC
License #487934 · C10
Grade A · Excellent
D & R Glass INC
License #488564 · C17
Grade A · Excellent
3-valley's Construction INC
License #489300 · B
Grade A · Excellent
C W Construction INC
License #344027 · B
Grade A · Excellent
Kaplan a Construction CO INC
License #490989 · B
Grade A · Excellent
Bre Electric INC
License #493143 · C10
Grade A · Excellent
A C a Heating & Air Conditioning
License #503032 · C20
Grade A · Excellent
Executive Elevator INC
License #504771 · C11
Grade A · Excellent
System 1 Interiors
License #514577 · C33
Grade A · Excellent
California Concrete Cleaning INC
License #516922 · D38
Grade A · Excellent
Cal - Lite Concrete
License #517895 · C-8
Grade A · Excellent
Dalton Trucking INC
License #522899 · C12
Grade A · Excellent
Bender Brett Wall Covering INC
License #574362 · C33
Grade A · Excellent
Jed August
License #536787 · B
Grade A · Excellent
Moore Electric INC
License #575048 · B
Grade A · Excellent
Comfort Mechanical Enterprises INC
License #608875 · C-2
Grade A · Excellent
Gutierrez Albert
License #578984 · C-8
Grade A · Excellent
B J's Electrical +
License #951618 · C10
Grade A · Excellent
Mehas Construction INC
License #585432 · A
Grade A · Excellent
Fields Arnold Painting
License #592825 · C33
Grade A · Excellent
Tobin Construction INC
License #593678 · A
Grade A · Excellent
Allen-de Roofing/drywall Contractor
License #599041 · C-9
Grade A · Excellent
Air Controlled Environments
License #623782 · C20
Grade A · Excellent
Drop & Son's Construction INC
License #632307 · B
Grade A · Excellent
Woods J Flooring INC
License #635572 · C15
Grade A · Excellent
Uptown Interiors INC
License #639945 · B
Grade A · Excellent
Rogers Remodeling
License #645111 · B
Grade A · Excellent
When hiring a contractor in Rancho Cucamonga, California, due diligence matters. The contractors listed above have been verified against multiple government databases and achieved Safety Scores of 85 or higher—placing them among the most compliant contractors in the area.
Our Safety Score considers:
While a high Safety Score is a strong indicator of a reputable contractor, we always recommend getting multiple quotes, checking references, and verifying the contractor is licensed for your specific type of project.
Safety Scores are calculated based on publicly available government records and are updated weekly. For official verification, check directly with CSLB at cslb.ca.gov.