Rated 4.9 out of 5.0 based on 21 Google reviews Google Reviews

HVAC Service San Jose

We are proud to offer quality and affordable options for
all air conditioning units and Heating systems.



Air Conditioning repair

Therma Tech Inc knows that it is important to balance our customers’ needs with that of the services we offer. We strive to make it as easy as possible for you to choose our company as the right air conditioning repair contractor for your home or business heating and cooling system needs.

We asses every home or business on space available, climate and insulation in order to help our customers choose the system that will work best for their needs. Working in this way with our customers helps in finding the best air conditioning system that is appropriate, cost effective and environmentally friendly.

Central heating and cooling is the norm for most homes and buildings in California. The initial costs of installing a centralized heating and cooling system is far outweighed by the benefits gained long term. At Therma Tech Inc we strive to keep your home or business just the way you want it, at the perfect temperature for your needs.

Heating and cooling typically makes up about 48% of your utility bill. It doesn’t matter what kind of heating and cooling system you have, you will improve your comfort level and potentially save money by upgrading and properly maintaining your HVAC equipment.

Just having an energy efficient furnace on its own will not have as great an impact on your energy bill as having a trustworthy air conditioning repair contractor providing maintenance and upgrades with recommended thermostat settings, insulation and air sealing. This offers energy bill savings of up to 30% while reducing environmental emissions.

If you are feeling cold in your home or business it may very well be that your heating system is not working as well as it should. Now would be the time to find a reputable air conditioning repair contractor to check your system and make sure it is working properly. Trust that Therma Tech Inc will do it’s best to get your home or business at the perfect environment to meet your needs.


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Let us help you take the stress out of home maintenance.

  •   My encounter started with a call to Vicky at their office and she was wonderful and refreshing.  Let me explain, Its 96 degrees in San Jose, Ca.  My AC went out!  I was in NEED OF A FIX!  I knew places would be busy, so I planned on being told I would have to wait.  I was looking through YELP and I saw the reviews here and I was like okay lets try this place.   Vicky answered,  like I said, I was "expecting to be told it would be a day or two" but NO! She was so nice and patient with me and she surprised me by letting me know that there was a 1pm appointment that same day.  I was like WHOA!!! YES please.  She made the whole conversation and scheduling easy and I had even forgot that I was in a sweat box.  She even let me know that my tech was Henry and he was the owner, so not to worry.  She was just so personable, I really didn't even want to hang up the phone with her.  

    I received an email notification about the appointment, then a text notification letting me know when Henry was coming, YUP I could see the estimated time Henry would be here. That is way better than "UBER".  Sure enough the doorbell rings, the dogs bark, I grab my mask and open the door and there is Henry with his mask. I was delighted. I see he was social distancing, or I would have hugged him. He asked me to let him in the back yard to see the AC unit.

    Let me tell you something, Henry was very honest and I liked that.  He told me my unit is still under warranty and I CAN call them and they COULD come out to fix it for free, or he could fix it for a fee.  I was in a dilema.  But its HOT and Im too sweet to be in heat. SO I said FIX IT.  He did and he changed out my filter too.  I appreciated his sense of humor, help, professionalism and honesty.  Even though I paid it was money well spent and it was a great team that did the work.   Thank you.

    thumb Michelle A.

      Thank you Henry and Vicky you guys made my life a whole lot easier.. I called Therma tech at 7am, Vicky answered and had Henry show up 20 minutes Later and had the problem fixed in 10 minutes.. if I ever have a problem with my AC again I will not hesitate to call Therma tech again.. thank you team!!

    thumb Jacquelin N Gabriel R.

      Loved how Vicky kept her promise to hook me up with Henry, the boss. They have a pretty good scheduling system via email and SMS. Henry is nice enough to give me a run down of what diagnosis he'll perform and how much each procedure costs and oh, he won't push you to install a new system. This guy is just as good as DG, but I ended up not to go with Therma Tech  due to the timing. I definitely encourage ppl to give them a call.

    thumb Lou T.
  •   This is the first yelp review I have ever written.
    I had another company the day before and they recommended a new condensor or a new a/c. I always get 3 estimates. The other 2 companies would not be able to come out until Tue/Wed.
    I called Therma Tech and Henry came out that afternoon!
    He diagnosed the issue in about 10mins and fixed it before he left. He
    only charged me for the item that was replaced! I am so impressed! It was 100 degrees and he wore his mask the whole time. Thanks so much Henry and Therma Tech, I am finally cool

    thumb Lani W.

      Trane XL16i AC went out last night blowing hot air only. Called Therma Tech at 8:30AM today June 3rd and had my appt set between 9:30 - 10AM.

    Henry arrived at 9:30AM, quickly diagnosed the problem, and had the parts replaced by 10AM and AC is back up and running.

    Highly recommend!!

    thumb David B.

      Very professional staff, including the dispatcher, Vicky, and technician, Henry. The dispatcher was extremely friendly, and confirmed the appointment by both email and text a few days before the appointment . On they the morning of the appointment, the dispatcher had asked if they could arrive even earlier than expected, which was a good thing for my schedule. The technician, was extremely knowledgeable & honest. He fixed the problem in a matter of minutes, as well as explained why the furnace was malfunctioning. I would definitely use this company when it is time to actually replace my furnace. It is without reservation, that I would recommend this service company to others who need it

    thumb Jay B.
  •   I definitely recommend Therma Tech! We called right after they opened and they were able to make it out to fix our AC unit that same morning! Henry was very professional, efficient, and knowledgeable! We will be using Therma Tech in the future if we have any other issues!

    thumb Ali G.

      Our Air conditioner quit working.These folks are great! Vicki made getting an appointment easy.  Henry showed up 2 hours early and had the problem diagnosed in a matter of minutes. Very professional and reasonable.

    thumb Marcia C.

      1 day before moving out, I saw water dripping from my AC Coil Tray. Called several companies and only Therma Tech was available to come same day.
    I was quoted $120 to come out for diagnosis (which would be waived if I hire them to fix the issue).
    The owner came out himself! Spent 10 minutes following the drain lines only to see the end of the line was not accessible.
    However there was an air vent. He blew into it and immediately cleared the clog. We could hear the water draining out. Leak stopped! AC still works, and he didn't charge me ANYTHING. My Hero!!

    thumb Doug H.
  •   I really liked the service provided by thermitech. I got a quote for from a few different HVAC companies to replace our old furnace, AC, and ductwork with dual zone for upstairs and downstairs (about 30% less). Their price was very reasonable and much lower than the other offers I received. Other companies also wanted to charge extra for moving the vent positions within some of the bedrooms for optimal coverage. When I asked Henry about it, he said it was included in the cost because it was not much extra work to move the vents. The work was done quickly and professionally. Henry was also very responsive to my questions.

    About 6 months after the installation, we did unfortunately have an issue with a piece of third party equipment that had failed (pump). I contacted Thermotech and they responded promptly. Henry came out and fixed the issue under warranty.

    Henry and his company definitely old customer service highly and I would gladly recommend them to any of my friends and family.

    thumb Alex S.

      I have never experienced this level of customer service. Beyond exceptional!!!
    Henry was at my house in less than 2 hours from my frantic call, on a Sunday no less, with temps forecast to reach 107.
    He had the A/C working in a matter of minutes... my hero!

    thumb Nancy F.

      Excellent customer service and professional service repair. Alin knew exactly what was wrong with our ac unit. Worked fast, safely and had honesty and integrity. I will definitely be contacting  agin for future heating and cooling needs.

    thumb Heather M.
  •   Between my family and I we have hired these guys 4 times already. We like how quickly they are able to come out for an evaluation (generally within a day or two), which is so important when you're freezing or sweating! Also, they seem very trustworthy and honest.
    #1- once he fixed my parents' AC, not sure what he did, but he said it didn't take long so didn't charge anything, not even a service call fee!
    #2- came out to evaluate my AC- unfortunately I had to replace the whole thing which cost 4 grand. They did it quickly though, provide a 10 year warranty, and things are still fine a year later
    #3- I called to ask for an evaluation since our heating bill was up the wazoo and I was worried there was a leak. Henry did a thorough check and offered some solutions but told me they were unlikely to help improve the efficiency of our heating. I appreciated his honesty and that he didn't convince me to pay money to have him do something that wouldn't help
    #4 - fixed my parents' AC right on the spot for 300 some dollars with some pieces he had in the car

    They are definitely our go to guys for heating or cooling problems!

    thumb Sharon H.

      I researched and received quotes from a few HVAC companies before going with Therma Tech. I went with them because they gave me options to what I was looking for AND they were responsive to my calls/questions. I had a new furnace and AC unit installed and this team is great. Henry, Vicky, Chris and his team were all professional and worked with me throughout the entire process. Chris and his team finished on time and cleaned up afterward. This team made this process easy for me. Much appreciated.

    thumb Amanda C.

      A+++ Henry at ThermaTech got my 20 year old air conditioner to work again. My unit finally gave out, and we are expecting 90-100 degree weather this weekend. I honestly did not expect it could be fixed, and given the age, I was not hopeful anyone would even try to fix it. I know a 20 year unit needs to be replaced, but given the upcoming heat wave, I wanted to just see what my options were. Other companies I called could not see me until next week (which I understand, we have another heat wave coming). I called and spoke with Vicky, who was super helpful and called me back right away. Within 30 minutes of calling Vicky, Henry was at my house and had repaired my AC for $195. Wow! I will absolutely be calling them for all my HVAC needs (including my new AC!), Thank you so much Vicky and Henry!!!

    thumb Loree P.
  •   This is a follow up to my previously posted review. I appreciate the owner's following up with my review. Although the problem with my A/C was a new one and not related to the part your company replaced, you insisted on compensating me an amount that was double the repair bill. This shows your sincerity and focus on customer satisfaction. I appreciate that. Since I still feel that you do not owe me this compensation, I donated it to a needy 3 year old girl who needs inner ear replacement operation in China. You can count it as your donation in spirit too. God bless

    thumb David N.

      Henry was on time, very efficient, pleasant & honest. Highly recommend...used them before great company!

    thumb Dave O.

      My air conditioning went down. My usual HVAC Service came out and topped off the puron. They said there was probably a leak. We're in the middle of a serious heat wave and they said it would take them FOUR days to check out the leak and that they couldn't get to it for a WEEK. Totally unacceptable.
    I called Therma Tech on a Sunday morning. Henry came out checked the Compressor and it appeared to be ok. Then he went into the attic and found a big visible leak in the coil. He said during this Covid thing he had purchased parts for so he could repair customers HVAC when Covid had shut factories down. He had a replacement coil in stock. A day later Mark and Adrian installed the coil and my air conditioning started working perfectly. I couldn't be more satisfied. Henry saved me over $6,000 by only replacing what was needed. During the heat wave I was willing to replacing everything. I found these people to be honest, clean, accommodating, and thorough. If I could give them more than 5 stars I would. I will certainly be giving them my future business and I will recommend them to my friends. A+++ job!

    thumb Reed A.
  •   Our AC and thermostat were in need of some updates and Henry from Therma Tech arranged to come out and fix them within short notice. The service was quick, professional, and clean. Definitely recommend Therma Tech for all HVAC needs.

    thumb Mark B.

      Very happy with my service from Henry of Therma Tech. Responsive and thorough. Will definitely use them again.

    thumb K V L.

      Needed a service on our AC... Henry came out and apparently all was good.  He changed one filter and left.  Said no charge.  He was maybe there 15 min.  Honestly. He could have charged whatever amount and we would have paid it.  Talk about honest.  
    Def Call THERMA Tech. a mom n pop honest operation!!!!

    thumb Yolanda G.
  •   We just purchased a new home in San Jose, which had central heating but no central air. We called Therma Tech for a quote among about 4 other companies. Henry came out to the house, gave us a quick and competitive quote, and told us he could have our new AC installed in a couple of weeks.

    As promised, Henry showed up on time with his coworker Chris. Together, they were incredibly professional, got everything installed on time, and even had to deal with an unexpected part failure on site. Because the part wasn't something that we were expecting to have to replace, Henry was incredibly fair in working out the cost for that issue. I know there are a lot of HVAC contractors to choose from in the area, but we are so grateful to have found Therma Tech - they are professional, fair, and honest. I highly recommend Henry and his team!

    thumb Justin B.

      Henry with Therma Tech showed up to troubleshoot why my blower motor wasn't working at 8:30am and was done by 8:50am.  He was knowledgeable and efficient.  Turns out the flux capacitor failed and needed to be replaced.  Lol

    thumb Dennis B.

      Henry and Therma Tech did a great job. And I would recommend them in a heart beat. Fast, Friendly and Honest.

    thumb Brenda V.
  •   I highly recommend Therma Tech hands down...for best customer service, promptness, and most importantly knowledgeable staff that saved me and my family from resent heatwave that just hit us in San Jose.  Our AC suddenly just stopped working two days ago while temperatures were above 100 degrees in shade.  So I searched for a local company in San Jose with high customer ratings and found few of them ....as ThermaTech was on top of my list of companies to contact .  So the next day I called them hoping to get service as soon as possible (like same day) however the scheduling lady (forgot her name..sorry)who answered the phone told me that the next available technician can visit us within the next two days at earliest due to high volume of service requests.  As I explained that we have our elderly parents living with us and If all possible can put a priority/rush on our service request...it would be much appreciated and helpful... so she noted my situation but said can't promise anything and schedule a visit for next two days. So I passed along our appointment information and date of our service call to my wife.  So I tried other companies as hoping for sooner appointment and got no sooner availability anyway.  Well surprisingly we got a call on same day around 6:30pm from Therma Tech and sure enough we were told a technician will be arriving within 30 minutes and if is okay with us?  OMG we were so happy to hear that and said please ...please...yes....for sure we are home.  At 7:00pm we had a technician by name of Henry who showed up and basically solved and fixed our AC unit in less than 10 minutes and as I was paying our service bill Thanked Henry so much and also asked him if he can give me his bosses name or email that we can send our gratitudes regarding our pleasant experience with both company and specially you Henry....so he smiled and said it was his pleasure ...as he gave me his business card for contact information (well Henry is the company owner) !!! WOW now that I call a true company with greatest leadership.

    thumb Rsc R.

      Henry came out on very short notice and found the problem right away.  It was a clogged drain pipe for our HVAC coil.  That's not in his area of expertise, so he didn't charge us (pretty cool).  Really, I wish I could have tipped him to show my appreciation.  I will definitely be looking for him for future HVAC problems.

    thumb John E.

      To start my AC was not broken but needed a tune-up/ service after 10 years. I chose Therma Tech even though they were not local to me. Vicki is one of the most energetic voices i have heard for the sales and scheduling staff. Very quick and to the point. Just as i thought it cant get  better, my service all was answered by Henry.

    My service was done in a jiffy and since nothing was wrong, Henry ran my AC  temperatures, charged the unit and did a complete health check.
    Again prompt, professional, knowledgeable and at the end he did not charge me as there was no repair involved.

    ThermaTech is a permanent entry in my to-go list now. i could not be flattered more by the sheer professionalism and honestly.

    Thanks Henry for coming over and Vicki for getting him to me!

    thumb s k.
  •   I am seriously impressed with Therma Tech. We used them years ago to replace our AC unit, and all was good. Then today, in the middle of COVID lockdown on a warm afternoon, we tried starting our AC for the first time in a while. Problem - only blowing warm air. Called Henry and team and literally within minutes he was on the phone then at our doorstep (masked) willing to take a look. Incredible service, and the air now blows cool again. Yes, we were lucky he was in the neighborhood, but how often does that happen? Big kudos to these guys.

    thumb Kevin B.

      Yet again, another piece of exceptional service!

    My AC stopped emitting cold air all of a sudden. Called them and Vicky was able to provide an appointment for the same day! I couldn't make it due to my conflict, so got the first appointment for the next day!

    Henry showed up, fixed the AC, in and out in under 10 minutes! Since the AC was under warranty (installed by Therma Tech), there was no cost to me!

    Yet again, extremely reliable company to work with!

    thumb Subhechhu S.

      Best customer service!!

    Our A/C broke down the beginning of summer. I had a consultation from another A/C service company who had already charged me $175 for 5mins of consultation and lot of upselling and to buy a new A/C unit.

    I called Therma Tech for second opinion. They were able to accommodate me for consultation at short notice.

    Henry was on time and provided expert opinion without any upselling. In my case, it was indeed old broken A/C that would need replacement. But Henry didn't charge me for that quick visit.
    He would get my repeat service because I didn't feel like it was rip off to pay hundreds of dollars for a quick assessment, also he was honest and didn't try to gouge me with too many service subscriptions.

    thumb Prakash M.
Therma Tech Inc
Based on 24 reviews
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Dave Chun
Dave Chun
21:20 09 Nov 20
My furnace stopped blowing warm air in our house on a cold day in November. This unfortunately occurred on Saturday... evening, and the lows that night were in the 40s. The next morning my house was 60 degrees and we were shivering in the house! I called Therma Tech on Monday morning when they opened and they were able to come out the same day! He spent 15 minutes diagnosing the problem and fixed it right away! Amazing service and super knowledgeable. Highly recommend!read more
Sherri Kuykendall
Sherri Kuykendall
16:14 19 Aug 20
They showed up fast and diagnosed the problem. And had us up and running. I am so pleased!!!
Kevin Cooper
Kevin Cooper
21:12 08 May 20
Henry came out the day I called during the Covid-19 crisis and got me taken care of.
Omar Castro
Omar Castro
23:47 26 Aug 19
Faster cheaper better more reliable
Arghavan Arjmand
Arghavan Arjmand
18:44 13 Jul 19
I called thermatech on a Friday and Henry have us an appointment for Saturday. He diagnosed the issue with our AC right... away, fixed it in a couple of minutes and for a reasonable price. He also gave us advice for the future on our system and regarding city codes. Overall a quite pleasant experience. Will definitely go to him again if we have any other issues.read more
wilbert jabraeili
wilbert jabraeili
21:22 03 Jul 19
Professional, reasonable price and great support. Best HVAC contractor
Milan REG
Milan REG
19:30 09 May 18
I have used Therma Tech service few times and also have referred them to other clients and friends. This company is... very responsive to callers and they focus on service vs. making money. They are very knowledgeable and do not leave the site without making sure that the problem has been resolved. Their rates are also very fair and reasonable. I highly recommend this company for all your HVAC needs. Thank you Henry!read more
Ilsin Baghdasarian
Ilsin Baghdasarian
03:57 06 Nov 14
I called them over the weekend for argent call, referred by my brother Emil who previously used them and the tech by... the name of Henry, showed on time as it was communicated. he was very detailed and checked the unit. Henry explained the issue and what he can do to fix it. He had the needed part in truck and was in and out within 2hrs. Henry was also very professional and appeared very clean. I will defiantly be using them next time and will recommend it to all my friends and family.read more
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