Best Heating & Air Conditioning / HVAC In Duluth

“We have used kalkbrenner for a variety of jobs. Each one as good as the last. We can’t recommend them enough. Their customer service is outstanding as is their workmanship.“

“Cannot recommend Brandon enough. Prompt communication and fantastic work installing our new water heater. We will be reaching out Brandon again for our future plumbing needs. Many thanks!“

“Krause Heating and Cooling installed a new boiler and a new water heater in our home. The entire process was great, from the initial estimate process to the installation. All employees - and the owner - were professional, courteous, and friendly. We recommend this company.“

“Lenard Electric did a small residential project for me. They were great to work with. Got me on the schedule quickly and the project went very smoothly.“

“Jeremy from AG O’Brien changed out a pump on my boiler and installed (2) shut off valves to isolate water for any future work. He was on time, knowledgeable, friendly, very professional and cleaned up after work. Highly recommended this company and Jeremy. Thank you.“

“Gary, does a great job cleaning my furnace for many years. The owner/staff are helpful and do their best. (for appointments also and arrive on time). I recommend their services! Thanks!“

“Excellent service!
Charles was both personable & knowledgeable-
He relieved my concerns & worries-
He explained the mechanics & what the issue had been caused from-
He also explained proper maintenance that
we should have been aware of-
He patiently and conscientiously re-explained everything to my son when he came home later-
Charles was very thorough in his assessments and he was very reassuring with my concerns-
If service is needed in the future, we hope Charles will be the serviceman that will come to our home-

ASP should be honored to have him as their employee-
He represents the ASP Company well!
Thank you, Charles!

All of the people/staff associated with ASP have been exceptional with their PR, service, & professionalism-“

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“Great company did a nice job recharging my mini split it now running at optimal temperature control“

“Emailed them for heating zone issues with our Viessmann Combi boiler. They responded within an hour and scheduled a service visit for 2d later. Technician tried to flush heating zones but could not so advised us to heat rooms where pipes were located with space heaters. Eventually this thawed pipes and flow was restored. I would recommend this company based on this experience.“

“Excellent on-time service. In and out ahead of schedule. With a reasonable price as quoted. Very professional.“

“Recreated a door/cover for an older machine I have at my shop. Turned out fantastic and identical to the old one. Great customer service and craftsmanship. Thank you.“

“Northland Comfort responded quickly to our service request. The technician, Trevor, was courteous and had the issue diagnosed and the repair completed in a timely manner. We will definitely use your services in the future and will recommend you to others!“

“The company is great!! Work was done well, efficient and timely! Matt was amazing to work with! I would highly recommend them. Faye M.“

“Cannot recommend Guthrie enough!
All of them were so kind and helpful. Our hot water heater went out over night and we were lucky enough that they had an opening the next morning. Michelle in the office, was prompt in returning my inquiry, knowledgeable, forthcoming in cost, and even found us a new water heater! I was so comfortable having Dale & Trevor come into my home. They were so nice, answered all of my questions, and even showed me what things did and were called. We are so thankful that Guthrie was able to squeeze us in to replace our water heater, and make the process so easy! We will 100% be using them for all of our future plumbing and heating needs!“

“I had a brand new furnace installed by Sam and Jacob on September 18th. They did a great job, and were professional and knowledgeable. Luke did a great job explaining my options and made it an easy decision. I wish I could remember the name of the tech who was there the day before, but he also did a great job and was very thorough and knowledgeable! Thanks guys !“

“MMT Heating and Cooling is our go-to for all mini split and boiler issues. They installed our mini splits on short notice in spring of 2021. They were super responsive and really made us feel like our home and needs were a priority for them. We got quotes from two other companies for our AC but went with MMT because they were the most responsive and professional in their communications and gave us a lot of confidence that they'd do the job in the most cost-effective and efficient way possible. We've been very pleased with the outcome.They also replaced our boiler and a thermostat. The number one thing I appreciated about their work on our boiler (besides being nice and warm again) is that they were SUPER clean! When they were done for the day, there wasn't a trace of the enormous project they had undertaken in the basement. That was HUGE for us because we have a toddler who will find anything that she's not supposed to eat, including trash and debris, and then she'll try to eat it.These guys are phenomenal. We really appreciate and respect their work and would def recommend!Services: A/C system maintenance“

“Wonderful, smart, well experienced, respectful, honest, on time and reliable. They have serviced our home for over 10 years and always been great! Heat pump and radiators and plumbing. Thank you!“

“I had to have my air-condition replaced. Zack from Carlson Duluth showed up with the new unit. Zack was very polite and well mannered. He was very neat about his work and cleaned up everything. Thank you Zack for your help. I highly recommend Carlson Duluth.
Gary Harley“