Reviews for Grumpy's HVAC

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  • June 2024

    Furnace was turning on/off oddly. They came out, checked it all out and found that a small piece of foam had come loose, causing the sensors to improperly kick on. Simple fix, straightforward and forthright. Great experience.

  • May 2024

    David was excellent to work with. I came to him needing a second opinion as another HVAC firm tried to push me to replace my unit claiming it needed a refrigerant that was not readily available. Turns out they misdiagnosed the issue altogether (surprise) and it just needed a capacitor replacement. David was an excellent communicator and very above board. He came highly recommended from a neighborhood forum and I can attest he lives up to this reputation. His repair pricing was very fair.

  • January 2024

    I highly recommend Grumpy's HVAC. From the first conversation to job completion, David was honest, thorough, and competent. We badly needed to install central heating and air in our 1950's home, and cannot be more pleased with the workmanship and outcome. Everything was arranged with precision, the installation went brilliantly with no fuss. The skill level, attention to detail, timeliness, and cleanliness were very appreciated. Call Grumpy's for a job well done!

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    Grumpy's HVAC

    493 Vine Ave, Sunnyvale

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