Top-Rated Contractors in Portola Valley
17 verifiedThese 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 Portola Valley, CA, 17 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 17 Contractors by Safety Score
Ranked by SiteVetter Safety Score, highest first
Env2 INC
License #910951 · A
Grade A · Excellent
Built Form Design & Construction
License #607923 · B
Grade A · Excellent
Rehlich William S INC
License #498794 · B
Grade A · Excellent
Builders Guild INC
License #853400 · B
Grade A · Excellent
Tamasi Ross Construction INC
License #1065683 · B
Grade A · Excellent
Portola Valley Construction
License #1102439 · B
Grade B · Good
Tamasi Tracy
License #806115 · B
Grade B · Good
Schwab Lawrence M Construction Company
License #367490 · B
Grade B · Good
Fci Construction INC
License #659420 · B
Grade B · Good
Okarma Geoff Construction INC
License #798689 · B
Grade B · Good
Form + Function Builders
License #837374 · B
Grade B · Good
David & CO
License #721814 · C33
Grade B · Good
Asborno Construction
License #409883 · B
Grade B · Good
Goodrich John L
License #278432 · B
Grade B · Good
Crevelt Richard Allan Construction CO
License #495026 · B
Grade B · Good
Blaine H Terrence
License #529603 · B
Grade B · Good
Ahern Constance L
License #905786 · B
Grade B · Good
Finding the Best Contractors in Portola Valley
When hiring a contractor in Portola Valley, 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.