Welzig Heating & Air

James and Logan installed a new split-mini heat/cool unit in the clubhouse for our recreation association. Their work was perfect in every way. Friendly, knowledgeable, detail-oriented and competitively priced. Casey also helped us troubleshoot a particularly mysterious sound in our HVAC system, with success! And James replaced a water heater in our home, and in the process fixed a nagging issue with the water supply to our humidifier. Everyone at Welzig is beyond my highest expectations for communication, timeliness, and quality of work.
Apr 4th, 2024

James and Anthony replaced our furnace this week. They were knowledgeable, efficient, friendly, + professional. An overall positive experience!
Jan 27th, 2024

I live in Boulder and they have 'rescued' me several times. A couple of times they were the only or best ones to come out when I had emergencies for my boiler or plumbing systems, during weekends and/or extremely cold time They just replaced and improved my boiler system and went above and beyond in the service. Very nice technicians and helpful, communicative office personnel.
Jan 25th, 2024

Fantastic service! They were on time and very professional! They had my furnace up and running in no time, highly recommend!
Jan 23rd, 2024

Jake D. and Xavier O., both very good at what they are doing and also very kind, in two sessions, diagnosed the heating problem and fixed it. I'd like to make sure the two are recognized as it went really smooth. Very appreciated!
Jan 11th, 2024