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Wedge Roofing vs Peterson Mechanical
Sonoma General Contractors Comparison · Updated March 2026
These are contractors in completely different trades: Wedge Roofing specializes in roofing systems while Peterson Mechanical focuses on HVAC and plumbing work.
| Wedge Roofing | Peterson Mechanical | |
|---|---|---|
| Rating | ★ 4.8 | ★ 5.0 |
| Years Licensed | 44 years | 68 years |
| License # | 416737 | 171486 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Petaluma, CA | Sonoma, CA |
| Website | www.wedgeroofing.com | petersonmechanical.com |
Key Differences
What Customers Say
Wedge Roofing
Customers consistently praise Wedge Roofing for clear communication throughout the roofing process, organized crews that maintain clean job sites, and responsiveness to follow-up questions after project completion.
Peterson Mechanical
Peterson Mechanical receives frequent mentions for quiet, unobtrusive installers who work efficiently, knowledgeable technical troubleshooting, and competitive pricing on HVAC projects.
Key Takeaway: Wedge Roofing's feedback emphasizes ongoing communication and project updates throughout multi-day roofing work, while Peterson Mechanical is noted specifically for how quietly and efficiently crews complete installations without disrupting occupied homes.
Customer Reviews
Wedge Roofing
Good work. Excellent
They did work on one of the builldings on my property a few years ago and was taken back by their honesty and professionalism. As the job progressed the problems found no mater how small was brought t...
Wedge Roofing Very happy with my new roof. Worked well with my crew of carpenters to repair storm damage to my residence. Very accommodating with good attention to detail. For example, flashing expe...
Peterson Mechanical
Fantastic service.
Trouble with Nest thermostat (PG&E supplied). Justin came out, on time, and diagnosed the problem which was a bit tricky and didn't leave until he was certain it was operating.
Super cool crew
Consider Wedge Roofing if...
- ✓ You need roofing work including replacements, re-roofing, storm damage repairs, flashing repairs, or flat roof systems
- ✓ You want a roofing contractor with specific experience in related exterior work like gutter replacement or skylight installation
- ✓ You value detailed explanations during estimating and regular communication as your roofing project progresses
- ✓ Your project involves coordinating roof repairs with other exterior trades after storm damage
Consider Peterson Mechanical if...
- ✓ You need HVAC system installation, furnace work, ductwork replacement, or thermostat troubleshooting
- ✓ You're looking for mechanical contractors experienced with smart home system integration like Nest thermostats
- ✓ You want quiet, unobtrusive installers who work efficiently in occupied homes
- ✓ You need plumbing work handled alongside heating and cooling system projects
Questions to Ask Before Hiring
- → If planning both roofing and HVAC work, ask each contractor about typical project timelines to coordinate scheduling between trades
- → Ask Wedge Roofing whether attic access during roofing work reveals any ventilation concerns that might affect HVAC efficiency
- → Ask Peterson Mechanical whether ductwork in your attic will be accessible or affected during any planned roofing work
- → Confirm with both contractors how they coordinate with other trades when projects overlap on the same property
The Bottom Line
This isn't a competitive comparison because these contractors work in completely different trades. Choose Wedge Roofing for any roofing project and Peterson Mechanical for HVAC or plumbing work. Both are properly licensed, insured, and bonded veteran contractors with strong reputations in their specialties. If you're planning a major renovation that includes both new roofing and HVAC replacement, hire both contractors and coordinate their schedules, with roofing work typically completed first to avoid disturbing newly installed mechanical systems. Contact the contractor whose trade matches your immediate project need.
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Frequently Asked Questions
No, these contractors specialize in different trades. Wedge Roofing handles only roofing and related exterior work, while Peterson Mechanical focuses exclusively on HVAC and plumbing systems. You would need to hire both if you're planning projects in both areas, which is common during whole-home renovations.
Generally, roofing work should come first since it involves significant vibration, debris, and potential attic access that could disturb newly installed ductwork or equipment. Ask Peterson Mechanical specifically about their equipment placement and whether roof work afterward would create risks. Coordination between trades is essential if timelines overlap.
Peterson Mechanical has been licensed 24 years longer (68 vs 44 years), but this comparison isn't particularly meaningful since they work in completely different specialties. Both are veteran-tier contractors with multi-decade track records in their respective trades, which is what matters for quality and reliability.
Wedge Roofing is based in Petaluma and serves Sonoma County and nearby North Bay communities. Peterson Mechanical is based in Sonoma and also serves Sonoma County. Both should cover most residential locations in the county, but confirm specific service areas when you contact them for estimates.
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How We Compare Contractors
License Verification
All license data is sourced from official California CSLB records and verified regularly.
Review Analysis
Customer reviews are aggregated from Google and analyzed to identify patterns in service quality.
Detailed Comparison
We analyze credentials, insurance, experience, and feedback to highlight meaningful differences.
Not all licensed contractors are created equal. While a valid license is the baseline requirement in California, contractors can vary significantly in experience, insurance coverage, and customer satisfaction.
- Experience matters: A contractor with 15+ years of experience has likely encountered and solved problems that newer contractors haven't faced yet.
- Workers' compensation protects you: If a contractor without workers' comp insurance has an employee injured on your property, you could be held liable.
- Reviews reveal patterns: Individual reviews can be misleading, but patterns across many reviews often reveal a contractor's true strengths and weaknesses.
- Bond amounts vary: A contractor's bond provides financial protection if they fail to complete work as agreed. Higher bonds offer more protection.
Taking time to compare contractors on these factors can save you from costly mistakes and help ensure your project is completed by a qualified professional.
Data Sources: License information from California CSLB. Ratings and reviews from Google. Last verified March 12, 2026.
This comparison is based on publicly available information. We recommend getting multiple quotes and verifying all credentials directly before hiring.
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