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Wedge Roofing vs Zero Energy Associates
Sonoma General 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 in a completely different field.
| 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 management, with crews that maintain clean job sites, complete work on schedule, and remain responsive to questions during and after roofing projects.
Zero Energy Associates
Customers emphasize Zero Energy Associates' thorough consultation process and long-term reliability, with multiple clients reporting years of trouble-free system performance and returning for additional HVAC and solar projects.
Key Takeaway: Wedge Roofing's reviews focus on execution and project management during roofing work, while Zero Energy Associates' reviews emphasize system performance and relationship longevity over many years of energy upgrades.
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: replacement, re-roofing, storm damage repair, flashing, flat roof work, or roof coating applications
- ✓ Your project includes roof-related exterior work like gutter or downspout replacement or skylight installation
- ✓ You want a contractor with over four decades of roofing-specific experience diagnosing hidden damage and handling complications during tear-off
- ✓ You value organized project execution with daily cleanup and crews experienced in keeping roofing timelines on track
Consider Zero Energy Associates if...
- ✓ You need HVAC work: heat pump installation, mini split systems, furnace replacement, or ongoing maintenance
- ✓ You're planning solar panel installation, battery storage, or converting from gas to electric systems
- ✓ You want a contractor who specializes in energy-efficient solutions and can explain long-term utility cost implications
- ✓ You're looking for a company with a track record of standing behind installations over many years, with customers reporting six-plus years of reliable system performance
Questions to Ask Before Hiring
- → If you're planning both roofing and solar work, ask Zero Energy Associates which roofing contractors they prefer to coordinate with for solar panel mounting and structural assessments
- → Ask Wedge Roofing whether they work with solar installers on coordinated projects and how they handle roof warranty when panels are added later
- → If timing both projects, clarify whether roofing should be completed before solar installation and how long to wait between projects
The Bottom Line
This comparison only makes sense if you're planning a comprehensive home improvement project involving both roofing and energy systems. For roofing work, hire Wedge Roofing—they're the roofing specialist with 44 years in the trade. For HVAC, heat pumps, or solar installations, hire Zero Energy Associates—they're the energy systems specialist. Both are veteran contractors with strong credentials and positive customer feedback. If you're doing both types of work, complete the roofing first to avoid the cost and complication of removing solar panels or working around new HVAC equipment. Reach out to both, explain your full project scope, and ask about timing and coordination.
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Frequently Asked Questions
No, these companies specialize in different trades. Wedge Roofing handles roofing work exclusively, while Zero Energy Associates focuses on HVAC and solar systems. If you need both, you'll hire them for separate scopes and will need to coordinate timing since solar panels should generally be installed on a roof in good condition with years of life remaining.
If your roof is aging or needs repair, replace it first. Removing and reinstalling solar panels later adds significant cost and complicates warranties. Ask Zero Energy Associates what roof condition they require before solar installation, and have Wedge Roofing assess remaining roof life if you're planning solar within the next few years.
Both are veteran contractors with established track records in their respective trades. Wedge Roofing's 44 years means more experience with unusual roofing complications and older building methods, which matters most if you have an older home or complex roof geometry. For straightforward projects, both companies' veteran status provides similar confidence.
Complete structural work like roofing first, then proceed with HVAC and solar installations. Roof work can create vibration and potential disruption to freshly installed equipment. Discuss your full project scope with each contractor upfront so they can flag any coordination concerns, such as solar panel placement affecting roof ventilation or HVAC equipment access.
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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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