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

D.w. Concrete

License #887290 · C-8

95/100

Grade A · Excellent

#2

Advantage Asphalt INC

License #713752 · C12

95/100

Grade A · Excellent

#3

W.l Construction

License #888577 · B

95/100

Grade A · Excellent

#4

Premier Service Group Enterprise INC

License #975801 · C20

95/100

Grade A · Excellent

#5

Islas Excavating & Demo

License #287257 · C12

95/100

Grade A · Excellent

#6

Final Phase Construction INC

License #764967 · B

95/100

Grade A · Excellent

#7

Orr Tim Enterprises

License #770331 · B

95/100

Grade A · Excellent

#8

Quality Material Handling INC

License #731100 · B

95/100

Grade A · Excellent

#9

Ledesma & Meyer Construction Company INC

License #735139 · B

95/100

Grade A · Excellent

#10

Dunn Plumbing Heating & Air Conditioning INC

License #712182 · C20

95/100

Grade A · Excellent

#11

Sonwest Air Conditioning INC

License #486917 · C20

95/100

Grade A · Excellent

#12

Southern California Landscape INC

License #753861 · C27

95/100

Grade A · Excellent

#13

National Cable Services INC

License #935088 · C-7

95/100

Grade A · Excellent

#14

Air Controlled Environments

License #623782 · C20

95/100

Grade A · Excellent

#15

Penwal Industries INC

License #751258 · B

95/100

Grade A · Excellent

#16

3-valley's Construction INC

License #489300 · B

95/100

Grade A · Excellent

#17

A C a Heating & Air Conditioning

License #503032 · C20

95/100

Grade A · Excellent

#18

Rogers Remodeling

License #645111 · B

95/100

Grade A · Excellent

#19

Gunby INC

License #937732 · C39

95/100

Grade A · Excellent

#20

Maximum Exhaust Cleaning INC

License #649857 · D34

95/100

Grade A · Excellent

#21

Pipe Dream Rooter & Plumbing INC

License #768995 · C36

95/100

Grade A · Excellent

#22

MC Leod Scott Plumbing INC

License #678352 · C36

95/100

Grade A · Excellent

#23

T D I Refrigeration

License #764435 · C20

95/100

Grade A · Excellent

#24

RC Air LLC

License #445508 · C20

95/100

Grade A · Excellent

#25

Ideal Comfort Heating & Cooling Corporation

License #448740 · C20

95/100

Grade A · Excellent

#26

Ayers Construction INC

License #765906 · C-5

95/100

Grade A · Excellent

#27

Professional Landscape & Irrigation CO

License #775392 · C-8

95/100

Grade A · Excellent

#28

Payne R L Construction INC

License #796055 · B

95/100

Grade A · Excellent

#29

Jones/covey Group Incorporated

License #804431 · A

95/100

Grade A · Excellent

#30

Castillo Ray

License #847578 · C-2

95/100

Grade A · Excellent

#31

Silverhawk Plastering

License #793064 · C35

95/100

Grade A · Excellent

#32

Greg's Custom Woodworks

License #824280 · C-6

95/100

Grade A · Excellent

#33

Sure Bid Auctioneers INC

License #776484 · D34

95/100

Grade A · Excellent

#34

Original Plumbing Company INC the

License #833096 · C10

95/100

Grade A · Excellent

#35

Afm Hvac

License #811183 · C20

95/100

Grade A · Excellent

#36

North Trademark Builders INC

License #840536 · A

95/100

Grade A · Excellent

#37

S M P Tile Works

License #828560 · C54

95/100

Grade A · Excellent

#38

Executive Elevator INC

License #504771 · C11

95/100

Grade A · Excellent

#39

Inland Pacific Electrical Contractors INC

License #830315 · C10

95/100

Grade A · Excellent

#40

Baldy Utility Company INC

License #675005 · A

95/100

Grade A · Excellent

#41

Luckett Roofing CORP

License #858752 · C39

95/100

Grade A · Excellent

#42

West Coast Fire INC

License #836639 · B

95/100

Grade A · Excellent

#43

K C E Electric INC

License #506736 · C10

95/100

Grade A · Excellent

#44

California Professional Management

License #864729 · B

95/100

Grade A · Excellent

#45

Ideal Glass Tinting INC

License #847220 · D52

95/100

Grade A · Excellent

#46

Maxair Hvac

License #953623 · C20

95/100

Grade A · Excellent

#47

Lion Construction

License #888802 · A

95/100

Grade A · Excellent

#48

Empire Electric CO

License #970924 · C10

95/100

Grade A · Excellent

#49

Westland Mechanical LLC

License #894940 · C20

95/100

Grade A · Excellent

#50

Closet Finish

License #732547 · D34

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.