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Reviews for Welzig Heating, Air, Plumbing & Electric

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  • May 2026

    We have used Welzig on 2 separate occasions now. The first was a duct cleaning and furnace inspection. We had a different company install our furnace and they caught multiple issues and notified us. They even fixed a few of them and cleaned our ducts well without any extra charges. They did not try to up-sell us on $1000 deep cleanings and fancy air filters like a few other companies tried to do. The second service was a new central A/C installation. From the very beginning, Casey did a great job at explaining our options and walking us through the entire process. It was not cheap, but Welzig's quote was very much on the low end compared to other estimates we got,... read full review

  • May 2026

    Jonny Baker from Welzig came out an installed a new water heater. He was very knowledgeable and customer focused. I would recommend Welzig for your Utility needs. Removed all old materials and left area clean.

  • July 2025

    I’ve used Welzig for a variety of services and have been incredibly impressed every single time. Most recently, I had their electrical team—Paul and his two apprentices—install conduit for my EV plug. While doing the job, they discovered that my ground wire wasn’t actually in the ground (a major safety issue I never would have known about). They fixed that right away and also installed a surge protector for extra peace of mind. Their attention to detail and commitment to doing things right really stood out.

    I also had Johnnie come out to install a Halo water filtration system, and I absolutely love it! The water quality is amazing—it completely... read full review

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    Welzig Heating, Air, Plumbing & Electric

    1831 Boston Ave, Longmont

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