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Ace Furnace vs Redwire Hvac
San Mateo HVAC Contractors Comparison · Updated March 2026
Ace Furnace brings 61 years of HVAC expertise compared to Redwire's 3 years, a significant advantage for complex diagnostics and uncommon equipment.
| Ace Furnace | Redwire Hvac | |
|---|---|---|
| Rating | ★ 4.9 | ★ 5.0 |
| Years Licensed | 61 years | 3 years |
| License # | 235989 | 1106003 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | South San Francisco, CA | Burlingame, CA |
| Website | — | redwirehvacca.com |
Key Differences
What Customers Say
Ace Furnace
Customers consistently highlight Ace Furnace's prompt response, efficient single-visit repairs, and clear technical explanations across diverse residential and commercial HVAC scenarios.
Redwire Hvac
Redwire HVAC earns specific praise for honest diagnostic assessments and avoiding unnecessary upselling while delivering same-day service for residential furnace and appliance repairs.
Key Takeaway: While both receive recognition for efficiency, Ace's feedback reflects experience handling varied equipment types and commercial work, whereas Redwire's reputation centers on straightforward residential service with customer-focused honesty.
Customer Reviews
Ace Furnace
I'm giving this company five stars for the amazing job they did on our home AC repair service. They sent out a really skilled technician who handled everything professionally. I've always appreciated ...
I'd recommend this company to anyone. I found them online and took a chance-so glad I did! The technician did a superb air conditioning repair and was super pleasant to work with. He stayed profession...
I'm really thankful for the work they did on my furnace that was not blowing. The technician was professional, arrived right on time, and gave awesome customer service. The repair was solid and didn't...
Redwire Hvac
Clean excellent workðŸ‘ðŸ»delivered with great efficiency. They are experts in their field. I will be recommending them to my friend Special shout out to BenðŸ‘ðŸ»
Very honest company. The free estimate took about 15 minutes and got my furnace working again. His recommendation was to have my ducts cleaned, which they do not offer otherwise I would definitely us...
Alan A. and Redwire Hvac are absolutely are at the top of the person-company relationships that I have ever dealt with. A week or so ago, my hot water heater was not working. It was terrible taking t...
Consider Ace Furnace if...
- ✓ Your HVAC system is older than 15 years or involves equipment that may be discontinued, where decades of experience with legacy systems becomes invaluable
- ✓ You have a commercial property or complex multi-zone system requiring expertise beyond standard residential setups
- ✓ You're dealing with an intermittent problem that's difficult to diagnose, where pattern recognition from thousands of service calls helps identify root causes faster
- ✓ You want the peace of mind that comes from a contractor who has been continuously operating since 1964 and has seen virtually every possible HVAC scenario
Consider Redwire Hvac if...
- ✓ Your issue involves a standard residential furnace, hot water heater, or common appliance where extensive experience isn't essential for diagnosis
- ✓ You value a straightforward, no-pressure approach and appreciate contractors praised specifically for honest assessments rather than upselling
- ✓ You're working with newer HVAC equipment where recent training on current models may be more relevant than decades of legacy system knowledge
- ✓ You prefer supporting a growing local business that's building its reputation through customer-focused service
Questions to Ask Before Hiring
- → For Ace Furnace: Ask which technician would be assigned and how many years of experience they personally have, since company history doesn't guarantee every technician shares that depth
- → For Redwire: Ask for references from projects involving systems similar to yours in age and complexity, particularly if your equipment is older or unusual
- → For both: Confirm warranty terms on repairs and whether they stock common parts for your specific equipment brand and model
The Bottom Line
For most standard residential furnace and AC repairs, both contractors are qualified and receive positive feedback. However, Ace Furnace's 61 years of continuous operation represents a clear advantage for anything beyond routine work—older systems, commercial properties, complex diagnostics, or equipment you can't easily replace. That depth of institutional knowledge genuinely matters when problems aren't straightforward. If you have a newer residential system with a common issue, Redwire offers capable service with a reputation for honest recommendations. If your situation involves any complexity, age, or uncertainty about the diagnosis, Ace's experience provides substantially better odds of getting it right the first time. Get quotes from both, but lean toward Ace unless your project is clearly routine residential work.
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Frequently Asked Questions
Not necessarily. For standard residential furnace repairs on common equipment, 3 years is sufficient to handle routine diagnostics and component replacements. The experience gap becomes more significant if you have older equipment, complex zoning systems, or problems that require deeper troubleshooting expertise. Their customer feedback indicates competent work on straightforward residential repairs.
The data shows customers describing Ace's pricing as reasonable, so longevity doesn't automatically mean higher costs. Established companies sometimes have better supplier relationships that offset their experience premium. Get quotes from both to compare, but don't assume the veteran contractor will necessarily cost more for the same repair.
Yes, particularly if the urgent problem isn't immediately obvious. Same-day availability is about scheduling speed, but diagnostic accuracy determines whether the repair actually solves your problem on the first visit. A more experienced technician may identify underlying issues that a newer contractor might miss, preventing repeat service calls.
Nothing in Ace's feedback suggests overselling; customers mention reasonable pricing and clear explanations. Redwire's specific recognition for honesty may simply reflect that customers noticed this trait distinctly, possibly because they expected a newer company to push unnecessary services. Both appear to operate with integrity based on available feedback.
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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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