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ThermosynHVAC contractor in Cupertino, CA

Thermosyn is an HVAC contractor in Cupertino, CA, rated 5.0 from 25 Google reviews. Open 7 days a week.

Cupertino, CA0 paid placements in any rankingHow we rank

Call (408) 614-0016Website ↗

Key facts

Key facts about Thermosyn
Phone(408) 614-0016
Websitethermosyn-hvac.com
HoursMonday to Sunday: 7 AM – 7 PM
Google rating5.0 from 25 Google reviews

Trades

Each trade shows the evidence we matched it on.

  • HVACmain tradeGoogle main category

Service area

Serves Cupertino and 11 towns within 25 miles: Communications Hill, Alum Rock, San Jose, East Foothills, Campbell, Santa Clara, Los Gatos, Milpitas, Saratoga, Sunnyvale and Morgan Hill.

Based in Cupertino, CAView on map

Opening hours

Opening hours for Thermosyn
DayHours
Monday7 AM – 7 PMevening
Tuesday7 AM – 7 PMevening
Wednesday7 AM – 7 PMevening
Thursday7 AM – 7 PMevening
Friday7 AM – 7 PMevening
Saturday7 AM – 7 PMevening
Sunday7 AM – 7 PMevening
  • Open evenings (after 6 PM)
  • Open Saturdays
  • Open Sundays

Typical heating and cooling prices

Typical heating and cooling prices
JobLowTypicalHigh
AC replacementPer system, installed (unit plus labor); typical range of customer-reported jobs. US national range$3,887$5,978$8,073
Furnace replacementPer system, installed; typical range of customer-reported jobs. US national range$2,823$4,814$6,896

Market ranges for the trade, checked October 2026, not a quote from this business. Ask for a written estimate.

Reviews

ContractorsRanked reviews

No ContractorsRanked reviews yet

Google

5.0from 25 Google reviews

Hired Thermosyn? Write a review

Questions about Thermosyn

What are Thermosyn’s hours?

Thermosyn is open 7 days a week. Its listed hours are Monday to Sunday, 7 AM – 7 PM. On Saturdays it is open 7 AM to 7 PM, and on Sundays 7 AM to 7 PM. Hours come from the business listing; holiday hours may differ.

What areas does Thermosyn serve?

Serves Cupertino and 11 towns within 25 miles: Communications Hill, Alum Rock, San Jose, East Foothills, Campbell, Santa Clara, Los Gatos, Milpitas, Saratoga, Sunnyvale and Morgan Hill. The list is based on the business's location and the usual service radius for heating and cooling. Confirm your address is covered when you call.

What do Google reviews say about Thermosyn?

Thermosyn has a rating of 5.0 from 25 Google reviews. The CR Score adjusts the star rating for review count, so a high rating from a few reviews counts for less than the same rating from many.

How do I contact Thermosyn?

Call Thermosyn on (408) 614-0016. Its website is linked in the key facts on this page. Ask for a written estimate before any work starts.

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