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HVACerz vs Therma Tech
Santa Clara HVAC Contractors Comparison · Updated March 2026
Therma Tech brings 18 years of licensure versus HVACerz's 6 years, offering three times the experience navigating complex HVAC issues.
| HVACerz | Therma Tech | |
|---|---|---|
| Rating | ★ 5.0 | ★ 4.9 |
| Years Licensed | 6 years | 18 years |
| License # | 1064432 | 913806 |
| Workers' Comp | ✓ Yes | ✓ Yes |
| Bond Amount | $25,000 | $25,000 |
| Location | San Jose, CA | San Jose, CA |
| Website | www.hvacerz.com | www.thermatechhvac.com |
Key Differences
What Customers Say
HVACerz
Customers consistently praise HVACerz for quick response times, efficient same-day service, and the ability to complete full installations within a single day using their small team approach.
Therma Tech
Customers emphasize Therma Tech's thorough diagnostic approach with photo documentation, detailed explanations without pressure selling, and long-term relationships with repeat business over multiple years.
Key Takeaway: While both receive praise for responsiveness, Therma Tech's feedback highlights sustained multi-year customer relationships and detailed diagnostic documentation, whereas HVACerz emphasizes speed and single-day project completion.
Customer Reviews
HVACerz
The service provided was very professional. Booking the appointment and the technician showing up at the house was a breeze. He was able to diagnose the situation effectively and suggested a fix that ...
HVACerz and the owner Barsin provide extremely high quality service! We needed a new heat pump and called HVACerz, in part because of the good reviews on Yelp and Google. We were not disappointed in...
Prompt, Professional, Clean and Efficient. Couldn't ask for anything more.
Therma Tech
Those of you reading my reviews, you know how important quality of service is to me. Any company I come in contact with, I pay close attention to their quality of service, value and even some time aft...
Everyone at Therma Tech was great to work with and professional. They worked with us to get the duct work done as soon as possible to get the heat back on for our tenants.
Very honest and knowledgable. They arrive right on time and are able to root-cause the issue and fix it in no time. Highly recommend them.
Consider HVACerz if...
- ✓ Your project is straightforward: replacing a failed furnace or AC unit in a system less than 15 years old where specifications are clear and complications unlikely.
- ✓ You prefer working with a smaller operation where the same person handles your call, quote, and follows through on the installation day.
- ✓ Your timeline is tight and you value HVACerz's track record of completing installations within a single day with their small team approach.
- ✓ You're comparing quotes and HVACerz comes in lower while still maintaining full insurance and licensing credentials.
Consider Therma Tech if...
- ✓ Your home has an older HVAC system where hidden ductwork issues, unusual configurations, or code compliance questions might arise during replacement.
- ✓ You're considering a complex upgrade like a dual fuel system, variable speed heat pump, or significant ductwork modifications that benefit from deeper technical experience.
- ✓ You value the peace of mind that comes with a contractor who's successfully navigated 18 years of industry changes, supplier relationships, and warranty claims.
- ✓ You're looking for a long-term maintenance relationship with a company that has demonstrated staying power through nearly two decades in business.
Questions to Ask Before Hiring
- → Ask HVACerz how they handle unexpected complications during installations, such as discovering asbestos-wrapped ducts or structural issues requiring permit modifications.
- → Ask Therma Tech about their crew consistency and whether the technicians performing your work have been with the company for multiple years.
- → Request references from both companies for projects similar to yours in scope, especially if you're considering heat pump conversions or whole-system replacements in homes built before 2000.
The Bottom Line
Therma Tech holds clear advantages for most homeowners: 18 years of licensure means deeper expertise for complex projects, older systems, and unexpected complications that separate veteran contractors from experienced ones. Their commercial capabilities and explicit mention of advanced systems like dual fuel configurations signal broader technical depth. HVACerz remains a solid choice if your project is straightforward, you prefer a smaller operation, or their quote is notably lower while maintaining the same insurance protections. But if your system is over 15 years old, involves significant upgrades, or you simply want the contractor least likely to encounter something they haven't seen before, Therma Tech's veteran status is worth the call.
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Frequently Asked Questions
For a straightforward swap of a failed furnace with a similar model in a standard installation, the gap matters less—both companies handle these routinely. However, if your system is over 15 years old or you're changing fuel types or efficiency ratings, Therma Tech's additional experience becomes valuable for anticipating complications like outdated venting requirements or electrical panel upgrades. Even basic replacements can reveal surprises once the old unit comes out.
Both companies receive consistent feedback for same-day and next-day availability during emergencies. HVACerz's smaller team size might offer more direct scheduling flexibility, while Therma Tech's larger operation likely maintains broader parts inventory from 18 years of supplier relationships. For emergency repairs, both appear comparably responsive based on customer experiences.
Both companies receive feedback describing their pricing as competitive and reasonable compared to other contractors. The experience gap doesn't automatically mean higher prices—veteran companies often have better supplier pricing and efficiency from repetition. Get quotes from both to compare directly, as project-specific factors matter more than years in business for pricing.
Both offer maintenance services with customer feedback praising thoroughness. Therma Tech's 18-year track record suggests greater business stability for multi-year maintenance relationships, and customers specifically mention returning over several years. HVACerz's six years still demonstrates staying power, but Therma Tech has proven longevity through more economic cycles and industry changes.
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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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