Reviews for Welzig Heating & Air

Add your comment
  • 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

  • July 2025

    We’ve been using Weltzig for several years now, and they never disappoint. Mark was just out helping us out with an A/C issue. He was very knowledgable and friendly. He fixed the problem and is now helping us with something else. Very pleased!

  • July 2025

    The Welzig team evaluated and provided solutions for cooling issues in our home. We were able to quickly get an appointment for an initial evaluation, and the technician, Bob, arrived timely and listened to our concerns and offered options. We had a follow-up appointment with Casey Welzig to discuss installing a new system. He was very thorough in his explanations and transparent about potential limitations. We opted for a new system, which the team was able to install 2 days after we decided to purchase. James, Anthony, and the team did a great job on the installation. They went above and beyond and stayed late to finish so that we would not be without cooling overnight.... read full review

  • Book an Appointment Online

    Welzig Heating & Air

    1831 Boston Ave, Longmont

    Directions Call Website Suggest an Edit