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Wedge Roofing vs Zero Energy Associates
Sonoma Solar Contractors Comparison · Updated March 2026
You're comparing a roofing specialist with 44 years of experience to an HVAC and solar contractor with 23 years—these companies serve completely different needs.
| Wedge Roofing | Zero Energy Associates | |
|---|---|---|
| Rating | ★ 4.8 | ★ 5.0 |
| Years Licensed | 44 years | 23 years |
| License # | 416737 | 820063 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Petaluma, CA | Sebastopol, CA |
| Website | www.wedgeroofing.com | zeroea.com |
Key Differences
What Customers Say
Wedge Roofing
Customers consistently highlight Wedge Roofing's organized project execution, with crews that maintain clean job sites, complete work on schedule, and provide clear communication from estimate through follow-up.
Zero Energy Associates
Zero Energy Associates earns recognition for thorough consultations during the planning phase and standing behind long-term system performance, with repeat clients using the company across 7-10 year periods.
Key Takeaway: Wedge's feedback emphasizes day-to-day project management during active construction, while Zero Energy's reviews focus on upfront consultation quality and equipment performance years after installation.
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...
Zero Energy Associates
Zero Energy was professional and did a great job installing my new heat pump heater. I strongly recommend them!
I've been using Zero Energy Associates for HVAC and solar on most of my construction projects for the last 7 years. Daniel Smith and his crew have always stood behind their work 100%. When asked, I al...
We had a wonderful experience with Zero Energy and based on this experience would choose to use them again There were a few glitches that were communicated clearly and then taken care of. The finished...
Consider Wedge Roofing if...
- ✓ You need roofing work including full replacements, re-roofing, storm damage repair, flashing repairs, or flat roof projects
- ✓ Your project involves exterior coordination like gutter replacement, downspouts, or skylight additions alongside roofing
- ✓ You want a contractor with over four decades of experience diagnosing hidden roof damage and handling complications during tear-offs
- ✓ You value organized execution with crews known for keeping multi-day job sites clean and completing work on the promised timeline
Consider Zero Energy Associates if...
- ✓ You need HVAC installation or replacement including heat pumps, mini split systems, furnace replacement, or water heater work
- ✓ You're pursuing energy efficiency upgrades such as gas-to-electric conversions or adding solar panels and battery storage
- ✓ Your project requires HERS rating compliance or involves construction professionals needing coordinated mechanical installations
- ✓ You want a contractor with two decades of experience in long-term system performance and a pattern of repeat clients over 7-10 year periods
Questions to Ask Before Hiring
- → If you're considering both companies for different aspects of a larger home improvement project, ask each contractor about coordination timing and any structural or electrical considerations that might affect the other trade's work
- → Ask Wedge Roofing about their experience with roof projects that might affect solar panel installations if you're planning future energy upgrades
- → Ask Zero Energy Associates whether HVAC or solar installations require roof penetrations or structural assessments that should be addressed before or after roofing work
The Bottom Line
This isn't a meaningful comparison because you're looking at a roofing contractor versus an HVAC and solar contractor. Choose Wedge Roofing for any roofing project—they bring 44 years of specialized experience to roof replacements, repairs, and related exterior work with strong feedback on execution and job site management. Choose Zero Energy Associates for heating, cooling, and solar projects where their 23 years of energy systems expertise and track record of long-term performance applies. If you're planning a comprehensive home upgrade involving both trades, you'll likely hire both companies for their respective specialties, coordinating timing so roofing work happens before any solar installations.
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Frequently Asked Questions
No, these are licensed specialists in different trades. Wedge Roofing holds a roofing contractor license for roof and exterior work, while Zero Energy Associates holds licenses for HVAC and solar installation. If your project involves both a new roof and HVAC or solar work, you'll need to hire both companies or find contractors in each trade.
It's relevant only within each trade. Wedge's 44 years means deeper experience with roofing complications, older home roof structures, and diagnosing hidden damage during tear-offs. Zero Energy's 23 years still places them in the veteran tier for HVAC and solar work. Both have substantial track records in their respective specialties.
Roofing should typically come first since solar panels are mounted on the roof and you don't want to remove and reinstall panels if your roof needs replacement within the solar system's lifespan. Ask both contractors about timing and coordination, as roof work may affect solar mounting points and electrical penetrations.
Yes, both maintain active California licenses, carry workers compensation insurance, and hold $25,000 bonds. Both are veteran-tier contractors with strong customer feedback patterns around communication and standing behind their work. The protection level is equivalent—the difference is purely in trade specialization.
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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 13, 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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