Bay Area Service Hub Review
Founded in 2008 (18 years), Therma Tech is a San Jose HVAC contractor specializing in residential heat pump conversions, AC and furnace repair, and high-efficiency system installations. Reviewers consistently highlight honest diagnostics without scare tactics, same-day response, and hands-on owner involvement from Henry Elia. Best for Silicon Valley homeowners wanting a straight-shooting, properly permitted installer for repairs or heat pump upgrades.
Evaluation Scores
Workmanship
9.0
Quality of work performed
Customer Service
9.0
Responsiveness & communication
Pricing
8.5
Clear & honest pricing
Reliability
9.0
Consistency & dependability
Expertise
9.0
Technical skills & certifications
Warranty Support
8.0
Post-service coverage
Essential Q&A
What makes this contractor stand out?
Honest, no-pressure diagnostics — multiple reviewers describe Therma Tech declining to upsell unnecessary full replacements that competitors had quoted.
Who should hire this contractor?
Silicon Valley homeowners wanting same-day repair or a properly permitted heat pump/high-efficiency upgrade from a NATE-certified, Carrier-authorized team that uses W-2 employees, not subcontractors.
Insider tip
Take the free diagnostic-with-repair and seasonal tune-up specials, and book ahead during heat waves — same-day slots fill fast and repeat customers report the most consistent results requesting a senior tech directly.
Frequently Asked Questions
Is this contractor licensed and insured in California?
Yes. CSLB license #913806 is active (C-20 HVAC) with a $15,000 contractor bond through Western Surety and workers' compensation coverage on file via Insurance Company of the West.
Does this company offer 24/7 emergency services?
Yes. They advertise emergency and after-hours HVAC service with same-day response, and reviewers report technicians arriving within 30 minutes on peak heat-wave days.
What kind of warranty is provided on their workmanship?
Most repairs come with a 1-year labor warranty, and new system installations are backed by manufacturer warranties of up to 10 years.
Do they provide free estimates or flat-rate pricing?
Yes. They offer free estimates on new installations and a free diagnostic when you approve a repair, with honest upfront pricing and financing options available.
How long has this business been serving the Bay Area?
In business since 2008 — over 18 years — serving San Jose and the greater Bay Area.
Are their technicians background-checked and certified?
Yes. Technicians are NATE Certified and EPA 608 Certified, and all work is performed by W-2 employees rather than subcontractors. Background-check and drug-testing policies could not be verified.
Platform Scorecard
Cross-platform reputation comparison
Google
225 reviews
Yelp
694 reviews
BBB
A+
0 complaints (3 yr)
Services Offered
Areas of Expertise
Certifications
Authorized Dealer
Service Areas
License Details
Status
Active
Classifications
Expires
2028-04-30
Bond Amount
$15,000
Workers Comp
Active - Insurance Company of the West
Disciplinary Actions
None
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All data sourced from official platforms
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