Austin was professional and efficient. Work was done quickly without any issues. Asked if I had any questions concerning our system, showed us pictures of the furnace interior which was nice. Flushed the tankless water heater with no issues. Nice pleasurable appointment. All of the techs that arrive from Welzig are a pleasure to work with.
About Welzig Heating, Air, Plumbing & Electric
Welzig Heating & Air is a trusted family-owned business serving the Longmont community since 1994. They offer a wide range of services, including heating, air conditioning, plumbing, and boiler systems. The company is known for its commitment to quality, customer service, and business integrity.
Customers consistently praise Welzig for their reliable and responsive service, especially during emergencies. Technicians are described as knowledgeable, friendly, and attentive to detail, while the office staff is commended for being helpful and communicative. The company is highly regarded for its trustworthiness and dedication to customer satisfaction, making it a preferred choice for mechanical services.
Recent reviews highlight Welzig's exceptional work across various areas. Customers have been impressed with the company's attention to safety, attention to detail, and commitment to getting the job done right, whether it's electrical, plumbing, or HVAC-related. The team's professionalism, transparency, and responsiveness have also earned them high praise. Welzig's ability to quickly address issues and provide solutions has made them a trusted partner for ongoing maintenance and system installations.
Reviews
Jesus Cardenas Was great. He replaced some specialty ceiling lights and added some dimmers switches. He did a great job and explained everything and would love to have him again when we need electrical work again at some point
My technician, Zach Grant showed up on time and prepared
He knew what he was doing and took care of the furnace making adjustments as needed
I intend to use this company to take care of the air conditioning system in the spring
Photos

Hours
Good to know
- accepts credit cards
Location
1831 Boston Avenue, Longmont, CO 80501
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