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Qualtech Heating & Cooling

4.6
(94 reviews)

Business Details

4115 Blackhawk Plaza Cir, Danville, CA
94506, United States
(925) 261-4487
https://www.qualtechhvac.com/

About

Air Conditioning ContractorHVAC ContractorHeating ContractorAir Quality Consultant
Qualtech Heating & Cooling offers air conditioning services, heating services, ductless A/C services, air quality services, air duct cleaning, air duct repair, air duct replacement and air duct sealing in Danville, CA and the entire Bay Area. CA license # 905205

Location

Qualtech Heating & Cooling
4115 Blackhawk Plaza Cir, Danville, CA
94506, United States

Hours

MondayOpen 24 Hours
TuesdayOpen 24 Hours
WednesdayOpen 24 Hours
ThursdayOpen 24 Hours
FridayOpen 24 Hours
SaturdayOpen 24 Hours
SundayOpen 24 Hours

Products & Services

1 list · 4 items

Explore offerings from Qualtech Heating & Cooling on 4115 Blackhawk Plaza Cir in Danville, with popular services available at this location.

Qualtech Heating & Cooling - Services

4 items

services

Air Conditioning Services
Air Quality Services
Ductless A/C Systems
Heating Services

Reviews

4.6
94 reviews
5 stars
83
4 stars
1
3 stars
2
2 stars
1
1 star
7
  • CM
    Carla Mote
    Jun 24, 2026
    5.0
    The Qualtech team is A+, we recommend them to everyone who asks. We live in center city and it's hard to be sure you're getting a trustworthy group that will finish the job the right way. This team uses only the best brands and they are so on top of customer service. Al and team have kept us cool for the past 8yrs and in a real crisis moment (compressor down, family flying in the next day) they pulled out all the stops to find the part we needed in a neighboring state, pick it up and get the install complete before our family/guests landed. You can't go wrong here.
  • CC
    CT
    Jun 19, 2026
    1.0
    Be very careful with this company. The tech who came to service our AC unit was terrible. He only show up for about 10 mins and left, charged me $125. He didn't bother to thoroughly checked and inspect the unit. He said the wires were all disassembled. I told him that we had another tech came and inspected the AC unit. He replaced all the wiring. For safety concern, they left the wires disassembled intentionally. But when Qualtech tech came, he was like who disassembled all these wiring, I will have to charge you to hook up all these wiring again, it will take me a lot of time to do this. He didn't say anything about not able to diagnose the AC unit due to the wiring being disassembled, but instead without hooking up the wiring to test the system, he told me that we need to replace the whole unit, he was very sure that it's compressor issue. I clearly asked the tech what is wrong he said the compressor went bad. So I asked how much is the compressor to replace, he told me $5000. When I called into the office the next day, the tech told the office person that it cost $5000 just for the labor cost to replace the compressor, compressor will be additional. I googled the cost of the compressor, only cost $1200 to $3000 including part and labor. So I don't know how he came up with 5k just the labor cost. I also asked about the warranty, he told me that they don't do warranty job for Carrier. But they are actually authorized dealer for the factory Carrier. He denied to do work for carrier! Don't ever trust this company, this technician is pretty bad. They do not do a good job, and they want to charge their customer an arm and a leg. I would not use them!
  • DF
    Daniel Fuad
    Jun 17, 2026
    5.0
    We had an awesome experience with Qualtech for a full HVAC and furnace replacement of our 20+ year old unit. I got a few estimates from local companies, and their pricing was really fair compared to the competition. Daniel was super helpful with the estimate, working within our budget instead of trying to upsell us. On install day, Eddie and Elijah were total pros, did clean work, and finished ahead of schedule. The office support was a huge standout too. Every time I called, I got Erika directly. She knew our case inside and out, so I never had to repeat our backstory. To make things even better, my wife and I had a baby right after the install. Erika was incredibly nice and accommodating, helping us coordinate everything with the city inspector so we didn't have to stress about permitting with a newborn. I highly recommend them!
  • JL
    john L
    Jun 4, 2026
    1.0
    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. - Third-Party Inspection: I hired Service Champions, who performed a leak test for half the cost of your quote. They replaced a leaking Schrader valve but found no leaks in the AC unit, furnace, or liquid line. - Current Status: Despite the repair and refill, the system still fails to cool in hot weather. Service Champions returned and identified likely contaminants in the liquid line. Service Champions noted that the filter now requires replacement--necessitating a refrigerant recovery and line purge--which typically occurs if lines are not properly purged after brazing during the initial installation. While your installation warranty is only three years, Service Champions offers a lifetime warranty on their work. Had this system been installed correctly or backed by a similar guarantee, I would not have incurred these significant costs to diagnose an installation-related issue
  • BG
    Barbara Gatewood
    Apr 30, 2026
    5.0
    Installed new water heater. Quick response. Very professional. Highly recommend this company.

Frequently Asked Questions About Qualtech Heating & Cooling

Are all air filters the same?

No, there are a variety of sizes and types available and it is important to select the right size for your system. You should also look at the filter's rating. A high rating removes more particles from the air, but some can restrict airflow. Once you have the right filter, make sure to change it regularly.

Do I need to schedule regular maintenance?

Yes, regular maintenance is essential to keeping your HVAC equipment running all year long. Routine maintenance helps prevent breakdown, ensures reliable performance, optimizes energy efficiency and maximizes your equipment's lifespan.

Brand Certified Facts from Qualtech Heating & Cooling

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Certified July 05, 2026Yext Knowledge Graph
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