Unclaimed business profile
4.3 · 205 reviews

Qualtech Heating & Cooling

HVAC contractors · Danville, CA

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About this business

Qualtech Heating & Cooling is a local, family-owned and woman-owned business that has served homeowners and businesses in the East Bay Area since 2007, providing HVAC installation, repair, and maintenance services.

Contact

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  • Danville, CA, 94506
  • (925) 261-
  • qual

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Review rating

Verified on Yelp
4.3/ 5

205 reviews on Yelp

5
123
4
0
3
41
2
0
1
41

Distribution estimated from 5 sampled reviews on Yelp.

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Recent reviews

Latest 5 of 205
Ken D.
5.0

I don't usually write reviews, but our experience with Qualtech earned one. They installed a new heat pump and gas furnace system for us, and the whole thing was smooth and stress-free. What really stood out were the two technicians who did the install, Sergio and Eric. They were thorough, careful, and kept us in the loop the entire time, walking us through what they were doing and patiently answering every question we had. They clearly take pride in their work and treated our home with respect. Thank you both! If you go with Qualtech, you'll be in great hands.

via yelp · 6/24/2026
C T.
1.0

I never spent so much time writing a review. But this time I really have to because I am quite upset with the whole situation. Be very careful with this company. The tech who came to service our AC unit was terrible. He only showed up about 10 mins and left, charged me $125. He didn't bother to thoroughly check and inspect the AC unit. He said the wires were not hooked up....

via yelp · 6/19/2026
John L.
3.0

I am writing to follow up on the persistent issues with the HVAC system Qualtech installed approximately six years ago. I am requesting a resolution regarding what appears to be an improper initial installation that has led to recurring system failures. The following timeline details the ongoing problems: - 3-4 Years Post-Installation: The AC began blowing warm air. A technician found the refrigerant low and refilled it for $260. - Recent Visit: The system failed again. Your technician found the refrigerant completely depleted and quoted $1,500 solely for a leak detection test, excluding repairs.

via yelp · 6/3/2026
Christine V.
5.0

The new AC unit was installed quickly in spring of 2023 which I appreciated. It is under the 2-year warranty, but now it is shorting out. A technician was sent to fix the issue on 4/17/2026. I'm thankful that he arrived less than 24 hours of my phone call. He diagnosed the problem and replaced the part in the same visit. But now it is 4/20/2026, and we are having the same problem again. It is already expensive even for labor. I don't know if it is comparable to the market for such services. I wish the diagnosis included the why the unit is having these electrical problems.

via yelp · 4/20/2026
John V.
5.0

Awesome experience compared to any other HVAC in the area. They were thoroughly professional, on time and great value. Erika especially worked very hard to get our well-deserved heat pump rebate and the team worked well to get everything done and the area was clean after the big install thru our master closet. Big Kudos to the entire team.

via yelp · 4/2/2026

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