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

Wizard Restorations INC

License #949290 · B

95/100

Grade A · Excellent

#3

Spectrum Striping Services INC

License #676265 · C32

95/100

Grade A · Excellent

#4

Weatherguard Company INC

License #921927 · B

95/100

Grade A · Excellent

#5

Heavenly Gardens

License #862358 · C27

95/100

Grade A · Excellent

#6

Alta Rancho Air - Conditioning & Heating CO

License #842084 · C20

95/100

Grade A · Excellent

#7

Verda Steel CORP

License #439318 · C51

95/100

Grade A · Excellent

#8

Air Dyne Mechanical

License #645326 · C20

95/100

Grade A · Excellent

#9

Greg's Custom Woodworks

License #824280 · C-6

95/100

Grade A · Excellent

#10

Protection Control INC

License #970451 · C-7

95/100

Grade A · Excellent

#11

Comfort Mechanical Enterprises INC

License #608875 · C-2

95/100

Grade A · Excellent

#12

Vinyl Pool Pro Services

License #658993 · D35

95/100

Grade A · Excellent

#13

Chamberlin Building Services INC

License #907740 · B

95/100

Grade A · Excellent

#14

Akita Mitsuyoshi

License #485220 · B

95/100

Grade A · Excellent

#15

Gregco Painting INC

License #918667 · C33

95/100

Grade A · Excellent

#16

Professional Electrical Construction Services INC

License #924855 · A

95/100

Grade A · Excellent

#17

Comfort Temp

License #737252 · C20

95/100

Grade A · Excellent

#18

T T S I Network Communications

License #937581 · C-7

95/100

Grade A · Excellent

#19

Maximum Exhaust Cleaning INC

License #649857 · D34

95/100

Grade A · Excellent

#20

Air There

License #942851 · C20

95/100

Grade A · Excellent

#21

Gus Electric INC

License #960644 · C10

95/100

Grade A · Excellent

#22

Wing Fung Construction INC

License #965037 · B

95/100

Grade A · Excellent

#23

Custom Pro Tile & Stone INC

License #987695 · B

95/100

Grade A · Excellent

#24

B C M Group INC

License #968356 · A

95/100

Grade A · Excellent

#25

Danna T a Construction Incorporated

License #987762 · B

95/100

Grade A · Excellent

#26

Penwal Industries INC

License #751258 · B

95/100

Grade A · Excellent

#27

Ground Werks Plumbing and Rooter

License #983618 · A

95/100

Grade A · Excellent

#28

Superior Electrical Mechanical & Plumbing INC

License #911185 · B

95/100

Grade A · Excellent

#29

Afm Hvac

License #811183 · C20

95/100

Grade A · Excellent

#30

Bayside Heating & Air Cond

License #917640 · C20

95/100

Grade A · Excellent

#31

Goss Construction CO INC

License #378377 · A

95/100

Grade A · Excellent

#32

Contract Flooring Services

License #390875 · C15

95/100

Grade A · Excellent

#33

Patriot Energy Hvac

License #792826 · C20

95/100

Grade A · Excellent

#34

First Place Glass Incorporated

License #964668 · C17

95/100

Grade A · Excellent

#35

Southern California Landscape INC

License #753861 · C27

95/100

Grade A · Excellent

#36

Medina Pools INC

License #1001269 · C53

95/100

Grade A · Excellent

#37

Uptown Interiors INC

License #639945 · B

95/100

Grade A · Excellent

#38

North Trademark Builders INC

License #840536 · A

95/100

Grade A · Excellent

#39

Rogers Remodeling

License #645111 · B

95/100

Grade A · Excellent

#40

Accurate Heating and Air Conditioning LLC

License #1008392 · C20

95/100

Grade A · Excellent

#41

Safway Atlantic

License #754948 · A

95/100

Grade A · Excellent

#42

Trl Systems Incorporated

License #413747 · C10

95/100

Grade A · Excellent

#43

Leach Roofing Company

License #691152 · C39

95/100

Grade A · Excellent

#44

Rancho Pacific Electric INC

License #445897 · C10

95/100

Grade A · Excellent

#45

Maldonado & Sons Flooring CO INC

License #812102 · C15

95/100

Grade A · Excellent

#46

Sonwest Air Conditioning INC

License #486917 · C20

95/100

Grade A · Excellent

#47

L C C 3 Construction Services INC

License #958931 · B

95/100

Grade A · Excellent

#48

Prestige Data Solutions INC

License #964528 · C-7

95/100

Grade A · Excellent

#49

H K Construction INC

License #452543 · B

95/100

Grade A · Excellent

#50

R S & M Construction INC

License #847570 · 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.