The technician arrive early at the promised time window. And make honest judgement with wonderful service.

The services are very professional and helpful. I would recommend it. He cared a lot on his works, and patient to show me how to use it that i didn't know. read more

I've used Therma Tech before and was pleased, so that is why I chose them for the current problem. I had a breaker to the air conditioning compressor repeatably tripping. The cause was identified and corrected in about 15 minutes. Highly recommend! read more

I'm extremely happy and fully satisfied with the work that Henry and his crew at Therma Tech provided for my house to replace the air ducts and put in a new heat pump and air handler for luxurious air conditioning. I had gotten an estimate from the Costco HVAC provider, and Henry's estimate came in thousands below theirs. For me personally, he had a crew of five or six guys working on the house and reduced what would have been a 5-day job to just a little more than 2 days. Henry even came over once to check on the crew and ensure they had everything they need and everything was going well. Thanks! Henry also suggested moving the air return register away from my front door (to avoid sucking in outdoor dust/allergens) and closer to the bedroom area, and he promptly had a guy come over to patch up the hole in my entryway ceiling. Jazmin in the office was really helpful in coordinating the asbestos removal on the ducts, which was a separate job, and also the post-installation inspections. Included with the install was a wi-fi thermostat to bring me into the 21st century. The Costco guys had that as a separate item with a 2x retail markup! I had AI analyze both estimates, and Henry's was the clear choice. We've been loving our house during the August/September heat waves! read more

I had an excellent experience with Henry from ThermaTech. My HVAC system stopped working properly after another company had spent about two hours diagnosing it and quoted me more than $3,000 for a new control board, contactor, transformer, surge protector, and maintenance plan. Henry arrived, clearly explained each step of his diagnostic process, and quickly identified that the transformer and contactor were the actual issues. He completed the repair in about an hour and charged me $540 total, saving me roughly $2,500 compared with the previous quote. What impressed me most was Henry's honesty, expertise, and transparency. He did not try to upsell me or replace parts that were not needed. He took the time to explain what had failed, why the system was not powering on, and what he was doing to fix it. It is rare to find an HVAC company that combines strong technical knowledge with fair pricing and integrity. I would absolutely recommend ThermaTech to anyone looking for an honest and skilled HVAC professional. read more

Therma Tech - Old Transformer - Heating & Air Conditioning/HVAC Near Me - San Jose, California

Henry is the reason why Therma Tech supersedes all the other HVAC businesses. We have an ancient furnace-condenser system. We had no idea when it was last serviced or if it had ever been serviced at all. Henry gave us a very fair and competitive price for a tune up. Upon Henry's arrival, he was friendly and professional. He opened the furnace and showed us the burner. He explained it was in great condition considering the age of the unit and it didn't need servicing; although, he did clean up around a few areas around the burner. The blower motor was slightly wobbly, and once again, he explained it was still in good shape considering its age. He proceeded to the back patio where the condenser was located. He noted the unit was very old and that particular Freon is no longer available for servicing; however, he stated the unit did not need to be replaced just yet as long as it's blowing cold. Henry indicated despite our units being way past their anticipated life expectancy, they were clean and blowing hot & cold just fine. Therefore, no servicing was recommended and he did not charge us anything. We are impressed not only by Henry's friendliness and professionalism, but also by his transparency and integrity. Many other companies would have hopped on the opportunity to upsell the service or even sway us to replace our system right away, but Henry gave us peace of mind to give us time and to save up for an inevitable replacement in the future with Therma Tech. Thank you so much, Henry! We will definitely contact you again in the future and recommend you to all our family, friends and coworkers. read more

This is my second time using Therma Tech, and they continue to impress. I recently hired them for a complete new HVAC installation, and Henry, Jasmine, and their entire team did an amazing job. From the start, Henry clearly explained the issues with my old system and presented transparent repair versus replacement options. Henry and Jasmine patiently answered all my questions while I made my decision. To be certain, I even gathered ~7 competitive quotes and ran them through ChatGPT to compare them on price, system efficiency/SEER rating, warranty terms etc--and Therma Tech came out on top. I highly highly recommend them to anyone needing an reliable HVAC company for repair or replacement. Cyrus read more

Therma Tech - Heating & Air Conditioning/HVAC Near Me - San Jose, California

Therma tech is professional fair honest and reliable. The tech explained exactly what was broken and needed to be replaced. This is an excellent company. read more

Had a new furnace installed by a different company and they aren't able to adjust airflow. We weren't feeling much airflow after installation. Called the MFG and saw their list of experts. Decided to call a few for a quote and connected with ThermaTech. They were very responsive and easy to set up, confirmed that they know to work around the specific model. Miguel text when he was on his way, showed up right on time and was equipped and wore shoe covers. Professional - talked me thru what he was going to do and was ant to make changes and asked me to confirm the airflow was good. Was very patient and let me check all the air vents multiple times - a very thorough job. Paid right when he left and at a very reasonable price. Will definitely call ThermaTech again and highly recommend! read more

Therma Tech - Heating & Air Conditioning/HVAC Near Me - San Jose, California

In the middle of a heat wave in San Jose, our AC stopped working. Desperate for same-day HVAC service, I called several companies, but most were either unavailable or fully booked. Then I called ThermaTech. Despite being completely booked, they heard how desperate our situation was and managed to squeeze us in. Their excellent reviews had already put my mind at ease that we would be treated fairly and not taken advantage of because of our urgent situation. Within a few hours of my call, Henry came out. I later learned that he is the owner of the company. In about half an hour, he diagnosed the problem as a faulty furnace capacitor, replaced it, and had our AC back up and running. I couldn't have asked for better service--responsive, honest, knowledgeable, and efficient. A huge thank-you to Henry and ThermaTech for coming through when we really needed it. I highly recommend them! read more

Follow up: Therma Tech responded (quickly!) that the pricing on the site is an error and they plan to update it. They've offered a refund and free follow-up due to the misunderstanding. Given their quick response and customer service, I have no reservations recommending this company and booking with them again in the future. ~~~~~~~~~~~~~~~~~~ Great service, but deceptive advertising. Be aware that the advertised prices may reflect first time customer incentives that are not declared as such. First, credit to the company's service. I've booked with them a couple times now for recurring maintenance. They seem thorough in their work and I appreciate the inspection reports provided afterwards. They're also very prompt and friendly. That said, I was frustrated when I was informed by the on site technician (ETA: who did bring this up at the start - again, great specialists) that the $88 maintenance service advertised on the site is a first time customer incentive only, when at *no point* is this mentioned anywhere in their advertising copy. Instead, after first service, the cost is $180 (unless you buy their annual membership, of course). Funny thing is, I like this company, and I do think they provide good value! I just want them to be honest up front about the cost. Getting bated with a different quotes price kinda shadows the rest of my experience. read more

2nd engagement: This business was able to make a 180 to my first impression. Henry and Jazmine are both very professional and the follow up was absolutely pleasant. More engagements to come!! read more

Miguel Mendoza, was great, on time and quick and fast service. AC up an running. I'm happy with the service.

Our cooling died on us in the middle of a heatwave and summer holidays. I was desperate to get the problem fixed and henry and jasmine came to our rescue. They were able to schedule me in last minute and henry came on time and fixed it literally in 5 mins. He charged us a reasonable rate. Would highly recommend them! read more

Updating my previous review: Therma Tech really stepped up and made things right. After my initial experience where the condenser coils couldn't be cleaned due to the lack of a rooftop water source, Jazmin was incredibly responsive and worked to resolve the situation. She arranged for Miguel to return with a portable water pump, and he was able to thoroughly clean the condenser coils as promised. I really appreciate the company's willingness to listen, take ownership, and follow through. Miguel was once again professional, friendly, and did excellent work. Great customer service and a genuine commitment to customer satisfaction. read more

One of our AC compressors went out a couple of days ago. I called Therma Tech and they had same day availability for the owner to stop by to take a look. Henry arrived on time, right in the dot, even though he was coming from quite a way away from us. I appreciated the link they sent so I could follow his progress on the road. He diagnosed the problem right away and was upfront with the cost of the repair. He also explained that our unit is on its last legs (26 yo) but the fix would last us some time so we don't have to spend ~$12K to replace it immediately. Henry then proceeded with the fix (thankfully he had the necessary part in his vehicle). He worked quickly and our AC came back to life right away. I would definitely recommend Therma Tech and will go back to them for future AC needs. read more

Super fast response times and were able to come out the same day within an hour! Fixed our AC issue and repaired very promptly and with care. Also offered us a quote for recommended future services which was appreciated. read more

Henry was amazingly efficient! He has updated some AC units in my condo, which made it super easy for him to go to the unit and fix all in the same day. I went from a hot 85 temp home to a nice 75 temp within an hr. Very happy with the service and support from Therma Tech! read more

Therma Tech was very helpful in replacing the capacitors that were not working in my wife and my air conditioner unit.

Fantastic thorough work completed by Jose R. Would highly recommend. Our dryer vent ductwork needed to be replaced as it was over 25 years old and didn't want to risk a fire. great work. read more

Tech was sick twice but Henry the owner the amazing, he came out within an hour and serviced the hvac perfectly! Reccomended! read more

I was incredibly happy with the service from Therma Tech. Jose did a fantastic job on the work and did it in a way that was far better than what I expected. I had several HVAC companies / contractors come out to bid, and few even understood what to do. I would not hesitate to work with Therma Tech again. Very trustworthy and they did an outstanding job. read more

Jazmin and Miguel are outstanding. The customer service could not have been better and the pricing is quite reasonable. Highly, highly recommend hiring them if you need furnace maintenance. read more

My air conditioner was blowing warm air. Henry came over very promptly, and just as quickly he identified the problem as a bad contact. He had it up a running in no time. Great service overall, very satisfied! read more

Miguel was amazing. He found the problem immediately, he was professional and was extremely polite. After trying other shops, our search is over. read more

Therma Tech was able to come on the day I called. Replaced the capacitor and the hard start kit. Now works great. My experiences with them have been great read more

Another successful repair to our old HVAC system; back up and running in under 1 hour for an affordable price. Miguel provided clear and concise communication throughout. read more

Wow. I've gone through so many HVAC companies, and finally, I found Therma Tech who are the ultimate pros. They came in with a highly competitive quote and incredibly professional---from scheduling to get asbestos removed, heat pump installation, to ensuring everything is up to code and scheduling the inspection. Amazing. read more

Simple. Excellent in all ways. Honest fair quote and fast installation. The best. Highly recommended

Their maintenance service is great! The technician explained his findings after the maintenance. And today we had a minor issue and they made extra effort to come same day. No scare tactics or anything like that. They are our default go-to. Response and service is top notch - Highly recommend! read more

We just had our gas furnace and A/C replaced with a heat pump. Henry was spot-on in recommending the latest Carrier model, even ensuring it was one that works efficiently in colder zones. I was incredibly impressed by the team's professionalism during the installation. You can completely trust him on both the technical details and his competitive pricing. Straightforward service with no games. read more

Henry and team installed our HVAC unit. From intial estimates to installation everything was great. Rebates were already applied at initial estimates and got a great price compared to other companies for the same hvac units. read more

Air conditioning service call. Wonderful service. Diagnosed quickly and performed service without any high pressure sales talk. Courteous.

Therma Tech should be every Bay Area homeowner's starting point in the search for an HVAC contractor. The AC at my parents' 2-story house went out in May and I surveyed every reputable HVAC contractor in the area. I wanted a system that would do a better job of handling the temperature difference between the top and bottom floors of the house than the old system did. To my surprise, each contactor I talked to offered vastly different approaches and a good number pushed for solutions that were clearly compromised at a very uncompromised price point. We ultimately went with Therma Tech and their suggestion to put separate Carrier 2-ton air handlers for each floor (one in the attic and one in the garage) with a heat pump compressor outside. Generally, this is the best performing but most labor and equipment intensive way to go about it, yet Therma-Tech's quote still came in lower than a lot of the other contractors who just wanted to replace the existing unit with another unit, usually of a cheaper brand, and perhaps add a zoning system. When it came to doing the work, the crew was exceptionally professional, clean, and patient with me even when I got excessively nit-picky, which I admittedly did constantly. The workers were smart and knowledgeable, explained everything I needed to know and offered options when there were different ways to go about things. They asked countless times if we were happy with everything and followed up after the job was done. I simply could not ask for better quality service. Six months later, the system is working like a dream. Whisper quiet, even temperatures between floors, and the house is more comfortable than ever. Most importantly, the parents are happy. I cannot recommend Therma Tech enough. read more

Therma Tech installed our air conditioner, heater & water heater in June. The company utilized an outside vendor for securing city permits and governmental energy abatements as well as coordinating for inspections post installation. They did an excellent job. Therma Tech installation team leader and members completed the job right on schedule. They were on time, courteous, patient in answering our questions, and kept the work area clean. The team leader and home office kept us informed of the process and the next steps thru out the whole time. We feel the costs we paid for the job were competitive. We would recommend Therma Tech to our friends and neighbors w/o hesitation. read more

Miguel was outstanding - professional, friendly and did a great job on a difficult project. Very pleased with the work done at a reasonable price. read more

Miguel came very promptly for both the diagnostic and returned early the next day to fix it. Very professional, nice, easy to do to business with. Would definitely recommend your service to others read more

Great company to work with--very knowledgeable, honest, and professional. They were responsive, explained everything clearly, and provided excellent service. This is the only A/C company I will call from now on. Highly recommended! read more

Henry is incredibly knowledgeable and was great help troubleshooting HVAC system. Would highly recommend.

My experience with Therma Tech was exceptional. They were able to get me in as an emergency appointment, which was greatly appreciated. Their customer service was fantastic; very helpful and kind. The service technician, Miguel, texted 15 minutes before his arrival and was exactly on time and within the timeframe window I was given when the appointment was made. He quickly assessed what the problem was with my air-conditioning unit and was able to fix it within 20 minutes. He was friendly, knowledgeable, and prepared to fix the problem. The repair cost was affordable, and he gave me a few options - I appreciated that. I will only be using Therma Tech going forward for my heating and cooling needs. Thank you! 10/10! read more