Dave showed up on time, did an excellent job, he was thorough and answered all my questions. I…read morehighly recommend Dave, D & M Heating and Cooling based on the quality of work he did along with the great customer service he knocked it out of the park. Thank you so much!!

Our furnace went out on Saturday morning. Called D & M heating and Tim was out here an hour later…read more He was able to get us some heat temporarily. We decided on a new Carrier high efficiency as repairs would be too costly. Their crew came on Tuesday and removed and installed a new furnace in 2 1/2 hours. Their installers were very pleasant and did a great job, Dustin was more than helpful. Wednesday morning I got a call from Christine Their office relations person to see how everything went. She was so very pleasant and helpful with questions I had. I would recommend this company in a heartbeat. Crew here exactly at time specified, nice job and pleasant office personnel. Couldn't be happier. Carol D.

The work was done fast, affordably and comprehensively. We talked to 4 companies first. We also…read morecalled references and this was the best. Our furnace went out and Trinity came that night with the best price and returned to install it that day. They didn't try to upsell us on anything and also returned to check and tweak a few things one more time. Very trustworthy and hardworking.

I had a HVAC company for years they added central air to our mobile home furnace 6 years ago and…read moredid a good job. When my furnace was not running right I called only to be told that now they joined a larger company they do not do mobile home furnaces, really a furnace is a furnace right. So I needed to find another HVAC company. I called Trinity Heating and cooling solutions. Zack was not concerned if my furnace was a mobile home furnace at all. He came, fixed what was going on and we decided to get a new furnace. Him and his crew was here today on time like he promised. I had to leave for an emergency and when I got home everything was done and cleaned up. Very polite, knows what he is talking about and is dependable. Thank you Zack and crew for the great job. Joyce R

beware!!!!!! work never completed. left numerous messages & never got a return call. had to hire…read moreanother company & pay for another permit. they're still sending a bill for work they didn't do.

I've been in their showroom a few times. It is very impressive for a small town like Shelby. I…read morehaven't used them yet, but they seem to know whats they're doing. I wouldn't hesitate to use them.

The whole house generator was running really rough and I discovered a bolt had sheared off in the…read moreintake manifold of the engine. Korthase and Sons gave us all of our options and took the time to bring the whole unit back to their shop and rebuild the engine, saving us thousands over a new unit! They were incredibly upfront and professional, and the generator runs like a dream now! We will use them for all of our electrical needs.

My 95 year old mom lives on a fixed income, in her own home, which was built in 1936…read more Her kids (including me) have been worried that she needed her electrical updated bc we had no idea if it ever had been. We got 3 estimates from licensed, insured electrical companies in the Muskegon area. The estimates were all fairly similar. BUT Korthase was the only one that was honest in telling us that her current electrical actually looked pretty good (it must have been updated from when the house was built, but we had no way of knowing that) and given that she would not likely be in her home for all that much longer, they said in their assessment, a big upgrade was not necessary. This saved my mom 5k! Apparently, there ARE honest companies and Korthase appears to be one of them.

Very professional. Mother In-laws door broke at 1:30 today. Was all fixed and going by 4:00pmread more

The wire that lifts the garage door snapped and cause the door to come off the track. K&S repaired…read moreit the same day they came out to check on it. They had the knowledge, tools and materials to fix it on the spot. I couldn't ask for an easier transaction. They came when they said they would, fixed the garage door, sent me a bill. The job was done right, no back and forth just quality service all around. Thank You K&S.

Professionalism stood out from beginning to end. I live out of state but Jared made it easy to…read moreschedule in advance with my schedule in mind. Needless to say, when we arrived at the family cabin the project went smoothly and was exceptionally well done in a timely manner. In addition, great attention to safety and detail of work were taken. I was beyond pleased. I would definitely partner up again with H Electric on another electric project on our 100 year old family treasure and recommend them highly.

Our furnace died on a Friday night and we had a technician out in less than an hour! Thorough and…read morefriendly and knowledgeable, things were up and running quickly. Highly recommend!

The technician's name was Corey…read more The technician who came to my home told me I had a diagnosis of a cracked heat exchanger.. He freely acknowledged he did not open up to do an actual visual inspection on the unit. He said it was because the flames were Orange. Another contractor came and told me the Orange was caused by dirty burners in crossover tubes. He told me my furnace was a safety hazard and had to turn it off and I must buy a new heating system.. You wouldn't offer me a replacement part option even though the parts are under the factory warranty I do. He told me that he'd exchange her how to factory recall and I asked for a manufacturer's bulletin. The bulletin he provided stated The furnace needs an additional grounding wire for a lot of models in my model was not one of them.. Dishonest, Deceptive, And clearly is not trained in basic service and maintenance on heating equipment. He clearly only cared about selling me new equipment equipment and not resolving my basic me this thing my basic maintenance problem.

They work hard and are dedicated to there customers. They listen to instructions very well. I'd…read morerecommend them for future work needed by anyone. Very punctual and on time. Very kind hearted and a miracle worker