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    Grumpy's HVAC

    4.9 (34 reviews)
    Closed 7:00 am - 5:00 pm

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    Services - Grumpy's HVAC

    HVAC installation or replacement

    HVAC system repair

    HVAC system maintenance

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    2 months ago

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    8 months ago

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    2 years ago

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    David B.

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    2 years ago

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    2 years ago

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    3 years ago

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    David B.

    Thank you so much. It was a pleasure working for you.

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    2 years ago

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    2 years ago

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    3 years ago

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    David B.

    It was a pleasure working for You.

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    3 years ago

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    5 years ago

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    3 years ago

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    3 years ago

    Good professional service, quick repair of my A/C in Sunnyvale. I'll definitely be calling back for any future HVAC work.

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    3 years ago

    He really helped me out. Found my parts and repair my A/C uint. And he got it fixed the same day. Thanks.

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    3 years ago

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    3 years ago

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    David B.

    It was a pleasure

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    3 years ago

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    5 years ago

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    3 years ago

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    David B.

    Thank You. It was a pleasure working for you.

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    5 years ago

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    Ask the Community - Grumpy's HVAC

    Review Highlights - Grumpy's HVAC

    I had David install a heat pump for me last year, replacing 2 furnaces that had been added during remodels.

    Mentioned in 28 reviews

    Read more highlights

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    Calvey Heating and Air

    Calvey Heating and Air

    (526 reviews)

    Downtown

    Called to make an appointment with Calvey Air and the phone was answered by Vicky. After I…read moreexplained by furnace problems she stated that she may be able to help me reset the furnace over the phone. She walked me through the problem, waited on the line while I followed her instructions. Within a couple of minutes the heater started to work perfectly therefore saving me a service call. This is surely the company I would call for any future furnace or air conditioning proplems.

    After meeting in person with numerous HVAC companies, my wife and I decided to move forward with…read moreCalvey Heating and Air. Michael Calvey thoroughly explained all of the options for our house's specific HVAC needs and was very patient with me as I asked a variety of questions. In fact, he made numerous trips to our house to answer the constant flow of questions my wife and I had. Bottom line, we built a solid working relationship with Michael and this gave us the comfort we needed to move forward with our HVAC investment. Calvey Heating and Air's estimate for a new heat pump and furnace at our house was very competitive. I was amazed at how much the pricing varied from vendor to vendor. Michael and the Calvey team made the entire process seamless from start to finish. Michael recommended an electrician who did a great job with our electric panel upgrade and the permit team did a fantastic job working with the city for all of the required paperwork. When it came time for the installation, the lead installer, Servando, and his team took pride in their work for the two day install. Similar to Michael, they were patient with me and answered all my questions during the install. Following the install, the Home Energy Rating System (HERS) Team promptly arrived and conducted the necessary testing. Lastly, the permit team met with the city building inspector to successfully get the city sign off on all of the work. Throughout the entire process, Calvey Heating and Air did a great job choreographing and managing all aspects of the installation. I was constantly kept informed and Michael and his team visited our house daily during the installation to ensure all was moving forward properly. Lastly, a final walk-through was conducted by Johnny from Calvey ensuring that the install was 100% perfect. Once my wife and I have had time to work with and get familiar with our new system, Michael indicated he will have his team come by our house and balance out our vents if needed and answer any additional questions we may have. Overall, my wife and I cannot be happier with our decision to have Calvey Heating and Air install our new system. Their service was great from start to finish and there were no hiccups. We highly recommend them. Thank you Michael Calvey!

    Therma Tech

    Therma Tech

    (680 reviews)

    Fairgrounds

    Henry is the reason why Therma Tech supersedes all the other HVAC businesses. We have an ancient…read morefurnace-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.

    Had a new furnace installed by a different company and they aren't able to adjust airflow. We…read moreweren'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!

    All Bay Insulation & HVAC

    All Bay Insulation & HVAC

    (419 reviews)

    I was thoroughly impressed by Noam's honesty and the qualifications that he had to install my new…read moreHVAC ducts and my attic insulation. I met with three HVAC contractors and Noam was the only HVAC contractor who honestly told me that I didn't need a new furnace, but I needed to remove the asbestos in my attic and get new attic insulation. The other HVAC contractors were not qualified to help me with my attic insulation and one contractor said I had no asbestos, but Noam , who is certified for asbestos removal, said I did have asbestos. I have peace of mind knowing that Noam was honest with me in telling me what I truly needed. His crew also did an excellent job installing my garage roof insulation with a ceiling fan. My garage gets incredibly hot in the summer. I look forward to having a cooler garage and house during the hot summers and a warmer house during the winters. I highly recommend All Bay Insulation & HVAC. My doorbell was not working and when Alonzo from All Bay Insulation & HVAC went into the attic, he discovered that the wire to the doorbell was cut and the wire next to the doorbell ringer was also cut. Since we don't know who cut the wire, Noam offered to have Alonzo install a new wire for free. Alonzo had to break through my kitchen wall to install the wire and when he repatched the wall, the wall looked good as new. You cannot tell that the wall was re-opened to install a wire. My doorbell now works perfectly, and thanks to Noam, I didn't have to pay a cent for this repair.

    Called Noam to help with my attic insulation, cleaning - as my home was extremely cold. He came…read moreover and gave a quote quickly and also gave multiple options to improve my homes attic and HVAC situation. He was very genuine and did not try to sell me things I didn't need. After the job was done, could tell right away that the home was better insulated.

    Grumpy's HVAC - hvac - Updated May 2026

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