Top-Rated Contractors in Rancho Cucamonga

50 verified

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.

How We Calculate Safety Scores

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.

Top 50 Contractors by Safety Score

Ranked by SiteVetter Safety Score, highest first

#1

Complete Construction Services INC

License #970215 · B

95/100

Grade A · Excellent

#2

Spectrum Striping Services INC

License #676265 · C32

95/100

Grade A · Excellent

#3

Weatherguard Company INC

License #921927 · B

95/100

Grade A · Excellent

#4

A D J Construction INC

License #905523 · B

95/100

Grade A · Excellent

#5

Robie Construction INC

License #864016 · B

95/100

Grade A · Excellent

#6

Bayside Heating & Air Cond

License #917640 · C20

95/100

Grade A · Excellent

#7

Goss Construction CO INC

License #378377 · A

95/100

Grade A · Excellent

#8

First Place Glass Incorporated

License #964668 · C17

95/100

Grade A · Excellent

#9

JV Glass CO INC

License #927374 · C17

95/100

Grade A · Excellent

#10

Baldy Electric INC

License #318457 · A

95/100

Grade A · Excellent

#11

Southern California Landscape INC

License #753861 · C27

95/100

Grade A · Excellent

#12

Cal - Lite Concrete

License #517895 · C-8

95/100

Grade A · Excellent

#13

W.l Construction

License #888577 · B

95/100

Grade A · Excellent

#14

Harrington Construction CO INC

License #463572 · B

95/100

Grade A · Excellent

#15

Rogers Remodeling

License #645111 · B

95/100

Grade A · Excellent

#16

Rosine Lawrence W CO

License #173235 · C15

95/100

Grade A · Excellent

#17

Air Dyne Mechanical

License #645326 · C20

95/100

Grade A · Excellent

#18

Resilient Electric INC

License #957586 · C10

95/100

Grade A · Excellent

#19

Sonwest Air Conditioning INC

License #486917 · C20

95/100

Grade A · Excellent

#20

L C C 3 Construction Services INC

License #958931 · B

95/100

Grade A · Excellent

#21

Trl Systems Incorporated

License #413747 · C10

95/100

Grade A · Excellent

#22

Allen-de Roofing/drywall Contractor

License #599041 · C-9

95/100

Grade A · Excellent

#23

Lopiccolo Donald G

License #477410 · B

95/100

Grade A · Excellent

#24

Prestige Data Solutions INC

License #964528 · C-7

95/100

Grade A · Excellent

#25

H K Construction INC

License #452543 · B

95/100

Grade A · Excellent

#26

Protection Control INC

License #970451 · C-7

95/100

Grade A · Excellent

#27

Leach Roofing Company

License #691152 · C39

95/100

Grade A · Excellent

#28

Pave IT Incorporated

License #975598 · B

95/100

Grade A · Excellent

#29

Premier Service Group Enterprise INC

License #975801 · C20

95/100

Grade A · Excellent

#30

Gunby INC

License #937732 · C39

95/100

Grade A · Excellent

#31

Wilburn Larry

License #488459 · C33

95/100

Grade A · Excellent

#32

RC Air LLC

License #445508 · C20

95/100

Grade A · Excellent

#33

Rcm Construction INC

License #794351 · B

95/100

Grade A · Excellent

#34

Newave Construction INC

License #987857 · B

95/100

Grade A · Excellent

#35

MC Leod Scott Plumbing INC

License #678352 · C36

95/100

Grade A · Excellent

#36

Tobin Construction INC

License #593678 · A

95/100

Grade A · Excellent

#37

Punk Rock Plumbing Services

License #842826 · C20

95/100

Grade A · Excellent

#38

Alloy Welding

License #871635 · C60

95/100

Grade A · Excellent

#39

Lawler Construction

License #965613 · C-5

95/100

Grade A · Excellent

#40

LI Guang Jin

License #688406 · B

95/100

Grade A · Excellent

#41

Fire Alliance INC

License #886531 · C10

95/100

Grade A · Excellent

#42

J R N Engineering

License #357442 · A

95/100

Grade A · Excellent

#43

Quality Material Handling INC

License #731100 · B

95/100

Grade A · Excellent

#44

Hofmann C a Construction INC

License #431171 · B

95/100

Grade A · Excellent

#45

Moore Electric INC

License #575048 · B

95/100

Grade A · Excellent

#46

Final Phase Construction INC

License #764967 · B

95/100

Grade A · Excellent

#47

Hailo Flooring INC

License #954819 · C15

95/100

Grade A · Excellent

#48

Chief Electric INC

License #627724 · C10

95/100

Grade A · Excellent

#49

Executive Elevator INC

License #504771 · C11

95/100

Grade A · Excellent

#50

Baldy Utility Company INC

License #675005 · A

95/100

Grade A · Excellent

Finding the Best Contractors in Rancho Cucamonga

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:

  • License Status — Active CSLB license with proper classifications
  • Workers' Compensation — Current coverage to protect you from liability
  • Contractor Bond — Financial protection if work isn't completed
  • Federal Compliance — No debarments, wage violations, or safety citations

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.