We called Mark's several times and did not get a response, this also included leaving messages…read more Knowing that there is a lot of construction in the area a return call stating that they were busy would have been something, but we got nothing. I won't comment on their quality of work, but I hope that it is better than their responses.My rating is only for the lack of response to our inquiries.

From the owner: Mark's Heating and Cooling Inc. is your local Tempstar dealer, serving the Bismarck-Mandan area…read moresince 1989. After over 20 years in the business, our customers particularly value our outstanding service and commitment to quality. We specialize in repair and installation of furnaces, air conditioners, ground source heat pumps, air cleaners, humidifiers, zone dampers, and hot water systems. We service all makes and models of heating and air conditioning equipment in both homes and businesses.

Fast, efficient, and fantastic price. We'll definitely be…read moreletting everyone we know to call Cole's Plumbing. Thank you so very much. PS it don't half an hour to filly sink and it get hot water so much quicker. God Bless and be safe

From the owner: We are a full service remodeling & service repair company. We specialize in remodeling jobs and any…read moreof your plumbing and HVAC services & repairs. Our plumbers are highly experienced and highly trained, making sure that when you call us, we can determine the issues quickly and repair the problem fast and efficiently. Give us a call today for a free quote!

Very knowledgeable and helpful folks at Preferred Heating and Air. The quality, cleanliness, and…read moreworkmanship to detail ensures a job well done. I received a fair quote and the value they brought is worth every dollar. Recommended 100%

My 40+ year old central air unit finally failed (of course, during a period of hot temps) and I…read morecalled Preferred Heating and Air. Jesse and Dusty came out and diagnosed the issues with my old unit and changed their schedules so that they could get a new unit installed a few days later. Dusty and Jesse arrived at 8 a.m. and had my brand new system installed within a couple of hours. Among the problems discovered in my old air conditioner were evaporator coils that were very poor shape as was the metal tray that the coils rest on which was very close to leaking into my newer furnace. My old unit uses the old Freon which has become very expensive, it also needed a new fan motor and other parts. The professionalism that the gentlemen displayed was amazing and my new Lennox A/C unit is whisper quiet and cooled my house down in a matter of minutes. I could not be happier with the service and professionalism that I experienced. I know that they are extremely busy and getting my new unit installed in such a timely manner is greatly appreciated. I highly recommend Preferred Heating and Air, a locally owned company.

Thank you to the Team at Advanced Mechanical. I have used…read moreyour service in the past, with excellent results, and found myself needing help with my home's furnace. Middle of the winter I expected to hear that I needed to pay an emergency fee to promptly get a tech to my house to look at my heat problem, however, I was pleasantly surprised when I found I was able to get a tech to my house the next morning (less than 24hrs) for a normal service call fee. The responding technician was thorough and explained my exact problem to me. Bottom line is I needed to repair or replace my aged furnace... Options were provided, with no upsell pressure. My furnace was unsafe to operate, so the tech took time to safely disable it and also took time to make sure I had adequate alternate heat sources to keep my two-story home warm and safe until we were able to fix my issue. Within a couple hours I had an estimate emailed to me, complete with several options to help me make the best decision. Ultimately I decided to update my furnace with a more efficient unit. I was impressed that Advanced Mechanical had a large inventory warehoused (in Bismarck) to ensure they have enough equipment on-hand to service our area. I appreciate the expense of holding this inventory and mitigating our current shipping and supply chain issues The team (Nate & Chris) that installed my new furnace was great. They were very friendly, clean and careful. They went the extra step to do an extremely professional installation, ensuring all plumbing etc. was clean and aesthetically good looking. They double checked all connections, gas supply and operations of all systems. They then made sure I was comfortable with all the repairs and understood everything. They left my utility room much cleaner than they found it! Very happy with the finished product and overall experience. It is definitely worth it to pay the pro's to come and do the work for you! Thank you!!

Sunday evening, we noticed we had no hot water. Monday morning, my dad called MDU to see if he had…read morethe appliance insurance through them - luckily he does! Spencer came over later in the morning and noticed the filter was plugged. This was fixed and we were told we should have hot water soon; however, we did not. I was quite frustrated and posted a comment on Facebook. Jami contacted me almost immediately and had Spencer at my house within a half hour & this time, it was fixed and he didn't leave until we felt the water warming up. I can understand troubleshooting doesn't always work the way I want it to and sometimes you have to try a few fixes before you get it right. I was hot and sticky & crabby (I needed a shower badly) I was blown away at how important it was to Jami that our hot water heater was fixed that night if at all possible. They took a situation with an unhappy customer and used it to create a very satisfied one who will definitely call on them again!

Overpriced and Overcharges... Owner took advantage of my ignorance and charged me for services that…read morewere unnecessary. It took him more time to have a conversation with me to find my home than for him to fix my issue which required no parts and unscrewing one screw, he literally jiggled his finger and told me I will need a replacement part, I have not yet replaced the part and my system works fine, it just required cleaning and light lubrication, which he did not perform. WILL NOT RECOMMEND OR USE AGAIN

I called several places in town and hands down they had the best customer service. I was installing…read morecentral A/C into an older home that previously only had window units. They were able to provide a quote over the phone and scheduled for instillation the very next day even though I live forty five miles out of town. The installers were very knowledgeable and got the job done in an extremely timely manner. I left my hot miserable house that morning and came home to an enjoyably cool and quite unit! They answered all questions I had about how to care for and use my new unit. Extremely pleased with my experience.

This business charges are fraudulent! They charged me $110/hr for a master plumber plus $110/hr…read morefor a "helper". Only when I questioned this was it addressed. The. The owner wanted to come & discuss the bill with me but never found time to come to meet me. Of course he added late charges. $4000 later I had an adjustment of a pathetic amount of $500 take off. This is highway robbery. Thank he same plumber charged me $165 for two workers on previous work! Will never use again!

From the owner: We're More Than You Thought…read more City Air Mechanical, Inc., meets all customer needs regarding heating, cooling, plumbing, refrigeration, sheet metal and more. Whether you have a residential or commercial need, you can get the professional quality services you deserve. From HVAC units to specialty metal fabrication, your service needs will be met. Call today and learn about our Worry Free program.