HVAC reviews in Williston, North Dakota

I've recently used Mon-Dak for both replacing a bad furnace as well as fixing another existing furnace. Each time they have shown up within a few hours and were very helpful. I would recommend them to anyone I know with furnace issues.

I was at the end of my rope, and the knot was slipping ! I stopped in and explained my situation to them. 100 degree days, my ac unit stopped working and I didn't know what to do. Rick explained everything, he and another person came out, on the same day ! They fixed my problem. The next day, it quit working again, I was so confused. Rick came back out and fixed it again and explained everything to me in a way that I could understand. I'm 60 and know nothing about this stuff. This company and these men are exemplary in the way they treat people. They didn't have to help the way they did. This shows the quality of character these folks possess. Thank you.

Called and they answered promptly and told me someone would get back to me. Less than 2 hours later they called to set up the work, and told me they gave priority to no heat calls, which blew my mind. I am so thankful for that. Most places would give priority to the biggest most profitable job.
Dog Chewed through some low voltage wires on the AC unit and popped a fuse in the Furnace when we switched it to A/C. Fixed Fuse, adjusted thermostat and tested, and repaired cabling. Reasonable bill. Receptionist and tech both were extremely nice. Class A service!

These guys have done all of our plumbing and heating for the last decade or so. They are awesome. Last week a capacitor went out in our office building and Rick was there within 10 minutes, diagnosed it in about 2 minutes, had the part and was fixed and running within 15 minutes. Thanks Rick!

Had an issue with my furnace, blower motor went out and I installed a new one but it was getting too hot and shutting down. It was a cold snap and they were busy but they did take a few minutes to help go over it and walk me thru it and made me double check the direction of rotation on the new motor and sure enough i had it backwards. I swapped the wires and it works wonders now. Thank you MonDak for all your help and you'll be my first call for any future problems.

I called a few other companies when my AC was not working and they either didn't respond or couldn't fit me in for a few days in the high heat. Lloyd at Mon-Dak heating and cooling got back to me in a timely manner, he had me try a few things to trouble shoot and isolate the problem before placing a service call in an effort to save me money. In the end they had to send a guy to fix some wiring which they did promptly and all good now! Highly recommend!

I’ve had Nick done several plumbing works at my house and my rental property, very timely manner and got the job well done.
Highly recommend this company!!

Great company to work with! We had Nick connecting the rural water for us and also did work on our plumbing in the basement. Very efficient and reasonably priced. Very satisfied with the set of this company!!

Top Quality service, quick call back, technician is a professional! I recommend 10/10

Floyd was fabulous to work with! He came over the same day I called. I let him know that we were working with a warranty & it didn't scare him away (like every other company in town I reached out to). He was always available to help get anything needed to get the parts/services approved for the warranty. We went 2 months without A/C in June & July. I contacted Floyd at Williston Heating & Cooling and we had the warranty complete and work done within 2 weeks I highly recommend this company!! Local, fast, reliable and professional

Fast response, very helpful, and excellent service. Truly went above and beyond to get my furnace working again. I really appreciate the care and professionalism.

Five stars isn’t enough. Absolute class act. He wasn’t available to do it, but asked me if I was able to check a few things over the phone. I did that and found the bad part, picked it up from his shop and installed it myself. I was honestly expecting him to gouge me on the part price nope 35 bucks. Which I’m sure he’s making decent money on it but he could charge triple that or more. this guy is a gem to our community. There are too many fly-by-night dumpster companies in Williston.will be recommending to everyone I know.

My furnace went out the week of Christmas and New Years.. a real cold snap was on the way. Floyd and Yonah were amazing. I think I was up and running with a new furnace in under 48 hours. Thank you Williston heating and cooling.
Micah

Called them fairly early this morning with furnace problems. Received a call back within an hour. The gentleman informed me that he was very busy and booked out until Wednesday but asked what kind of problem we were having. Brief as our problem was not allowing our house to heat until it was fixed we began to diagnose over the phone. In less that 15 minutes we have checked a few things and found the cause of the problem. (Plugged line to a sensor) I cleared the block and our furnace fired right up. They did not charge me anything an wished me well. Very polite professional and mind you he helped me diagnose my furnace while working on someone else. Amazing place, they will absolute be our first call for any and all heating/cooling needs

Mr.Floyd is God sent! Amazing company reliable and I would recommend him a million times over again! Our business truly appreciates Williston Heating and Cooling!

I can’t thank Mr. Floyd enough for the quick one day service! Very knowledgeable and great rates on repairs! I will recommend him to anyone who needs service!

I had no heat and I called before 8am on a Sunday morning expecting to get an answering machine. Floyd answered the phone. I told him what was happening and he said it was an easy fix. He was on his way to another job and was nearby. So he stopped in and had the furnace fixed within 5 mins. He also showed me what was wrong and how he fixed it so I can do it myself if it happens again. I would strongly recommend calling Floyd. He really cares about his customers and his prices are fair.