Top-Rated Contractors in San Dimas

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 San Dimas, 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

Diversfied Construction & Engineering Group INC

License #768516 · A

95/100

Grade A · Excellent

#2

High Line Cabinet Systems

License #695129 · C-6

95/100

Grade A · Excellent

#3

Jet Electric INC

License #880023 · C10

95/100

Grade A · Excellent

#4

Urban Treehouse LLC

License #999429 · B

95/100

Grade A · Excellent

#5

P H Roofing

License #851584 · C39

95/100

Grade A · Excellent

#6

Lou's Plumbing INC

License #854291 · C36

95/100

Grade A · Excellent

#7

F & R Interior Woodworks INC

License #779168 · C-6

95/100

Grade A · Excellent

#8

Schultz Electric

License #762677 · C10

95/100

Grade A · Excellent

#9

Pros Remodeling & Development

License #975804 · B

95/100

Grade A · Excellent

#10

Inland Air Balance INC

License #837772 · D62

95/100

Grade A · Excellent

#11

Claremont Lock & Key

License #842200 · C28

95/100

Grade A · Excellent

#12

A1 Asphalt Parking Lots

License #988059 · C12

95/100

Grade A · Excellent

#13

Direct Access Elevator INC

License #967766 · C11

95/100

Grade A · Excellent

#14

Associated Construction Services Group

License #667206 · B

95/100

Grade A · Excellent

#15

Barrios L and Associates INC

License #640672 · C27

95/100

Grade A · Excellent

#16

Friedman Brandon Painting

License #977434 · C33

95/100

Grade A · Excellent

#17

Montes Daniel & Son Air Conditioning and Heating

License #647493 · C20

95/100

Grade A · Excellent

#18

J G Concepts INC

License #986622 · B

95/100

Grade A · Excellent

#19

S P S Data Communications INC

License #689497 · C-7

95/100

Grade A · Excellent

#20

Sepia Energy

License #966510 · C10

95/100

Grade A · Excellent

#21

Houseman J Painting

License #730316 · C33

95/100

Grade A · Excellent

#22

Cabral Roofing & Waterproofing Corporation

License #746649 · C39

95/100

Grade A · Excellent

#23

San Dimas Plastering INC

License #816902 · C35

95/100

Grade A · Excellent

#24

M & M Construction Group the

License #772942 · B

95/100

Grade A · Excellent

#25

Daniel Weir Construction INC

License #1008816 · B

95/100

Grade A · Excellent

#26

Premier Air Conditioning INC

License #1015193 · C20

95/100

Grade A · Excellent

#27

A S I Networks INC

License #868554 · C-7

95/100

Grade A · Excellent

#28

Nelson Sound INC

License #734664 · C-7

95/100

Grade A · Excellent

#29

Equal Air Balance

License #1006492 · C20

95/100

Grade A · Excellent

#30

S C Enterprises

License #815046 · B

95/100

Grade A · Excellent

#31

Martinez Climate Control

License #922415 · C20

95/100

Grade A · Excellent

#32

Precision Grading & Excavating

License #563111 · C12

95/100

Grade A · Excellent

#33

Bolide Technology Group INC

License #949965 · B

95/100

Grade A · Excellent

#34

Pacific Systems Interiors INC

License #721864 · B

95/100

Grade A · Excellent

#35

Avcom Systems INC

License #961901 · C-7

95/100

Grade A · Excellent

#36

American Scale CO INC

License #327295 · D21

95/100

Grade A · Excellent

#37

Cirrito Construction

License #757857 · B

95/100

Grade A · Excellent

#38

Pershing Russell a

License #393163 · B

95/100

Grade A · Excellent

#39

Soyland Enterprises

License #366909 · B

95/100

Grade A · Excellent

#40

C & C Drywall

License #982428 · C-9

95/100

Grade A · Excellent

#41

Cavanaugh Bill Painting

License #814241 · C33

95/100

Grade A · Excellent

#42

Mario Reyes Construction INC

License #987658 · B

95/100

Grade A · Excellent

#43

Annas Steven Construction

License #705978 · B

95/100

Grade A · Excellent

#44

Secure Logic Systems

License #715462 · B

95/100

Grade A · Excellent

#45

Stone Electrical Contractors INC

License #464976 · C10

95/100

Grade A · Excellent

#46

Ces Roofing

License #998787 · C10

95/100

Grade A · Excellent

#47

Emily Grene CORP

License #975808 · C10

95/100

Grade A · Excellent

#48

Colley Galen T

License #504544 · C10

95/100

Grade A · Excellent

#49

Transdev Rail INC

License #920178 · A

95/100

Grade A · Excellent

#50

Grigolla & Sons Construction CO INC

License #514132 · A

95/100

Grade A · Excellent

Finding the Best Contractors in San Dimas

When hiring a contractor in San Dimas, 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.