Grumpy's HVAC
Grumpy's HVAC is a HVAC provider serving Sunnyvale, CA. Rated 5.0★ with 17 Google reviews. See services, review signals, and request a quote.
HVACSunnyvale, CA
On this page
Company overview
- TradeHVAC
- Service areaSunnyvale, CA
- Google rating5.0★ (17 reviews)
- Phone(510) 610-3123
- Address493 Vine Ave, Sunnyvale, CA 94086, USA
- CSLB License1079386 (ACTIVE)
Photos
Photos from Grumpy's HVAC, David Burnett
What customers say
“Second time I've reached out to Grumpy's and based on those two experiences I have no reason to ever call anyone else. David unfortunately was booked for weeks but took the time to walk me through t…”
“Honest, professional, and a great price. Can't recommend enough. AC unit went out during the summer, then Furnace went out late spring. David came to the rescue. We got a quote from another company an…”
“Our heater stopped providing us with hot air in the middle of the night and my family and I woke up to a freezing house. I called Grumpy's and David showed up within 2 hours and then diagnosed the iss…”
Key highlights
Strengths
- Highly rated (5.0★ average)
Things to ask
- Confirm availability for your area and timeline
- Ask about warranty terms on parts and labor
- Request a written estimate before work begins
- Ask about payment plans or financing
Explore nearby research
Frequently Asked Questions
What services does Grumpy's HVAC offer?
Grumpy's HVAC provides: HVAC diagnosis, repairs, and full system installs. They serve residential and commercial customers in Sunnyvale, CA.
What is Grumpy's HVAC's rating?
Grumpy's HVAC has a 5.0 out of 5 star rating based on 17 Google reviews.
Is this company licensed in California?
Yes. License number: 1079386. Status: ACTIVE. You can verify on the Contractors State License Board (CSLB) lookup at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/CheckLicense.aspx.
Does Grumpy's HVAC offer emergency service?
Contact them directly to ask about emergency availability and after-hours service.
How do I request a quote?
Use the CTA below to submit your ZIP. You can message this company alongside two or three other local pros for easy comparison.
Licensing verified 2026-04-24. Reviews refreshed 2026-04-24.
Licensing data: Contractors State License Board (CSLB) · Company data: verified business records + Google Business profile
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