Compare Local Pros
Above All Roofing & Seamless Gutters, Inc. vs Greiner Heating Air And Electric
Solano Solar Contractors Comparison · Updated March 2026
These contractors serve completely different needs—Above All specializes in roofing and gutters while Greiner focuses exclusively on HVAC and electrical work.
| Above All Roofing & Seamless Gutters, Inc. | Greiner Heating Air And Electric | |
|---|---|---|
| Rating | ★ 4.3 | ★ 5.0 |
| Years Licensed | 9 years | 47 years |
| License # | 1021325 | 365955 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | Vacaville, CA | Dixon, CA |
| Website | www.aboveallroofingnorcal.com | www.ghac.com |
Key Differences
What Customers Say
Above All Roofing & Seamless Gutters, Inc.
Customers consistently praise Above All's quick project completion and professional crew, though some experienced delays getting initial estimates and callbacks.
Greiner Heating Air And Electric
Greiner receives strong feedback for technician thoroughness, detailed explanations with photos, and same-day emergency response for HVAC issues.
Key Takeaway: Above All's reviews focus on speed of project execution once scheduled, while Greiner's emphasize educational service delivery and responsiveness during emergencies.
Customer Reviews
Above All Roofing & Seamless Gutters, Inc.
Above All Roofing did a great one day job replacing my roof and gutters. Justin picked out the color of the roof to blend in the neighborhood and to be engery efficient based on California laws. A nic...
Voted best roofing company for years!
I worked with Justin to replace my roof. He was friendly and professional. I had a great experience with him and his team! The job was done quickly, and to my satisfaction! It looks great! Thank you J...
Greiner Heating Air And Electric
Very professional and kind techs...big reason I stay with the monthly subscription are techs like Jose who are super professional and explain everything thoroughly without pressuring.
This is the best experience I've ever had with a tradesmen coming to do Home repairs. The technician Jason did a thorough inspection. He took the time to explain to me what he did and what might be ne...
I recommend using Greiner. They have given me wonderful service over the years. From the friendly receptionist who has a very kind demeanor every time I've called. And the technicians provided me wi...
Consider Above All Roofing & Seamless Gutters, Inc. if...
- ✓ You need roofing work, gutter installation, or leak repairs—this is their specialty and Above All won't be distracted by side trades
- ✓ Your project timeline is tight and you need roof work completed quickly, potentially within a day for standard replacements
- ✓ You want guidance on roofing materials that complement your neighborhood or improve energy efficiency
- ✓ You're willing to follow up proactively on estimates if you haven't heard back within a few days
Consider Greiner Heating Air And Electric if...
- ✓ You need HVAC installation, repair, or maintenance, or electrical work—these are Greiner's core services
- ✓ You value a maintenance program with scheduled reminders and priority service for your heating and cooling systems
- ✓ You have an urgent furnace or AC failure and need same-day emergency response
- ✓ You want detailed system diagnostics with photographic documentation and thorough explanations of what technicians find
- ✓ The depth of experience matters for your project, particularly if you have an older home with complex HVAC challenges
Questions to Ask Before Hiring
- → For Above All: What's your typical timeline for providing estimates after an initial consultation, and how should I follow up if I haven't heard back?
- → For Above All: How quickly can you schedule my roofing project once I accept the estimate, and what's the expected completion timeframe?
- → For Greiner: Do you offer a maintenance agreement, and what does priority service actually mean for emergency calls?
- → For Greiner: Can you provide references from HVAC projects similar in scope to mine, particularly if my system is older or has unique configurations?
The Bottom Line
Your decision is determined by which system needs work, not by weighing contractor quality. If you need roofing or gutter services in Vacaville, Above All is your option here—just plan to follow up proactively on estimates and confirm scheduling expectations upfront. If you need HVAC or electrical work in Dixon, Greiner's 47 years and same-day emergency service make them a strong choice, particularly for complex diagnostics or ongoing maintenance. Both are properly licensed and insured. The only scenario where you'd genuinely compare these companies is if you're doing a major renovation requiring multiple trades—in which case, hire both for their respective specialties.
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Frequently Asked Questions
No, these contractors specialize in different trades. Above All focuses exclusively on roofing and gutters, while Greiner handles HVAC and electrical work. You'll need to hire them separately for different systems, which actually ensures you're getting specialists rather than a jack-of-all-trades.
Experience matters within the same trade, but comparing across different specialties isn't meaningful. Greiner's decades in HVAC means deep expertise for heating and cooling challenges, while Above All's 9 years of roofing focus is substantial for that trade. Both carry workers comp and bonds, so both provide baseline protection.
Greiner explicitly offers same-day service for HVAC emergencies, which matters when your heating fails in winter. Above All is noted for quick project completion once scheduled, but reviews mention estimate delays, so they may not be the fastest for urgent roofing emergencies. Ask Above All directly about their emergency response protocol if you have active roof damage.
It's a valid concern but appears limited to the quoting phase rather than project execution. If you're comfortable being proactive about following up for your estimate and confirming next steps, their actual work quality and speed seem solid. If you need a contractor who manages communication without prompting, this could be frustrating.
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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 11, 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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