Glenn did a good job.

Kate B

Glenn was prompt, courteous and informative.

Glen B

Carlson did a quality installation. I'm very happy with the workmanship.

Kris L

Glen was very professional and cleaned up after himself. He explained my bill to me and went over all the work he completed. Would highly recommend.



The went out of their way to get us heat in our flooded home before the cold weather came.



Carlson Duluth was very helpful, prompt, and professional.



The guy who installed our furnace was great! (sorry I forget the name) Very professional. We were very comfortable having him in our house & he was polite, knocking on inside door when he needed our attention, clean up was great. Explained in detail the programmable thermostat as we’ve never had one before & showing items we needed to know about new furnace. We are glad with our choice & went with a Lennox is what I had before. Had to replace after 15 yrs after June 2012 flood. Jeremy and other staff were wonderful wot work with. So very glad I chose them! Very willing to continually answer questions. Completed all rebate forms in a timely fashion. Great personal service.