Compare Local Pros
Air Temp vs Fuse HVAC
San Mateo HVAC Contractors Comparison · Updated March 2026
Air Temp brings 19 years of focused HVAC experience versus Fuse HVAC's 4 years with broader multi-trade capabilities.
| Air Temp | Fuse HVAC | |
|---|---|---|
| Rating | ★ 4.3 | ★ 4.9 |
| Years Licensed | 19 years | 4 years |
| License # | 889684 | 1093255 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | San Mateo, CA | South San Francisco, CA |
| Website | airtempco.com | fusehvac.com |
Key Differences
What Customers Say
Air Temp
Customers emphasize Air Temp's reliable availability for urgent heating situations and timely arrival for scheduled appointments with proactive communication about earlier windows.
Fuse HVAC
Customers consistently praise Fuse HVAC's rapid scheduling capability, clear diagnostic explanations, and honest recommendations about repair versus replacement cost-effectiveness.
Key Takeaway: Fuse HVAC receives notably more detailed feedback about technician communication and transparency during the diagnostic process, while Air Temp's recognition centers on dependable responsiveness during heating emergencies.
Customer Reviews
Air Temp
Being without heat for over a month (me being lazy and in denial) Luis was great!!!! Gave me a time range when he could stop by and updated me when he could arrive earlier. He "allowed" me to watch...
Luis is always available to come to the rescue! He is reliable and his fees are in line with other Peninsula services.
Refrigeration Repair pros. That's what they are!!! They fixed our commercial refrigerator on time for my business to re-open. Great service...
Fuse HVAC
Vitally was very professional and knowledgeable. Good personality
I have health issues that is severely exacerbated by extreme temperatures. I had issues with my heater one very cold morning and called Fuse for assistance. Fuse not only sent me a highly qualified t...
They provide excellent repair and maintenance even for very old HVAC systems, including those over 20 years old. Elijah, who manages my building, is very friendly and highly skilled.
Consider Air Temp if...
- ✓ Your heating system or commercial refrigeration equipment is older than 10 years and may present non-standard configurations or discontinued parts requiring veteran troubleshooting experience
- ✓ You operate a business with commercial refrigeration needs like walk-in coolers where downtime directly impacts revenue and you need proven reliability
- ✓ Your project is straightforward HVAC work where specialized focus matters more than multi-trade convenience
- ✓ You value a contractor whose 19-year track record demonstrates sustained business stability through multiple economic cycles
Consider Fuse HVAC if...
- ✓ Your project involves multiple systems—such as upgrading electrical service for a new HVAC unit, installing an EV charger, or replacing a water heater—and you prefer coordinating with one contractor
- ✓ You need exceptionally fast scheduling for an urgent situation, as Fuse HVAC consistently delivers same-day and next-day availability
- ✓ You're deciding between repair and replacement and want a contractor whose reviews specifically mention honest cost-benefit assessments
- ✓ Your home has modern equipment less than 10 years old where diagnostic technology and current training matter more than decades of experience
Questions to Ask Before Hiring
- → Ask Air Temp about their experience with your specific equipment brand and model, particularly if your system is older or involves commercial refrigeration components
- → Ask Fuse HVAC for references from projects completed in their first two years versus recent work to understand how their capabilities have developed
- → If your project involves multiple trades with Fuse HVAC, ask which work they perform directly versus subcontract to ensure accountability
- → Ask both contractors how they handle situations requiring permits, as multi-trade work often involves inspection requirements
The Bottom Line
If your HVAC system is older than 10 years, involves commercial refrigeration, or presents complex diagnostic challenges, Air Temp's 19 years of specialized experience provides meaningful additional protection against misdiagnosis and trial-and-error repairs. Choose Fuse HVAC if your project involves multiple trades requiring electrical, plumbing, or appliance work alongside HVAC service, or if you're working with modern equipment where their strong diagnostic communication and same-day availability matter more than decades of experience. For straightforward residential HVAC on newer systems, Fuse HVAC's honest assessment approach and scheduling speed make them highly competitive despite less experience. For aging systems or commercial equipment, Air Temp's veteran depth justifies their selection.
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Frequently Asked Questions
For routine repairs on modern equipment, four years provides adequate diagnostic capability, and Fuse HVAC's reviews consistently mention quick problem identification. However, if your system is older than 15 years, involves complex zoning, or has commercial components, Air Temp's 19 years means they've likely encountered your specific complication before. The experience gap matters most when standard diagnostics don't reveal the problem.
Yes, particularly for projects requiring electrical upgrades alongside HVAC installation, EV charger additions, or water heater replacements involving both plumbing and electrical work. Using one contractor eliminates scheduling coordination between trades and provides single-point accountability. However, confirm whether Fuse HVAC performs all work in-house or subcontracts certain trades, as that affects the convenience benefit.
Commercial refrigeration experience demonstrates capability with complex cooling systems under high reliability demands. This translates to stronger troubleshooting skills for residential AC systems, particularly for diagnosing refrigerant issues, compressor problems, or airflow complications. If you only need basic residential HVAC service, this specialization provides limited additional value, but for challenging diagnostic situations it's an asset.
Both demonstrate strong availability, but their review patterns differ slightly. Air Temp receives specific recognition for reliable response during urgent heating situations, suggesting established protocols for emergency calls. Fuse HVAC's consistent same-day scheduling indicates excellent general availability. For a heating emergency, either should respond promptly, but Air Temp's veteran experience may prove valuable if the problem requires creative solutions for older systems.
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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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