My furnace quit the night the temps dropped to -1. Warren told me someone would be out the next…read moreday. I won't go into all the details, but the first attempt to repair the furnace did not succeed. Kirby came back the following day. He made certain my furnace was working and I was happy before he left.

My furnace stopped running and I put in request through Yelp. Warren responded within few minutes…read moreand walked me through troubleshooting the furnace without any charge!! My furnace is running completely fine and he saved me the headache and money! Really appreciated the quick and good service :) Definitely will be bringing all my business to them!

I was extremely happy with my experience with C&C! My hot water wasn't working, which is definitely…read moreinconvenient, and they were great with getting me on the schedule quickly! I also love their text feature where they send you a picture of the technician coming to your house and call you to let you know when they're on their way. Wonderful customer service!! Kevin was the technician who serviced my hot water heater and went above and beyond to help me. He was friendly and thorough with his work and also explained the diagnostics in simpler terms (for people like me who know nothing about this stuff LOL). He even helped me clean my filter that was dirty and left me some extra tape. I highly recommend this company and will use them again for any HVAC needs!

This company's call center will definitely give you a hard time when requesting a certain…read moretechnician. They have qualified technicians and not qualified technicians. Im getting tired of this company and trying to be loyal but they are not loyal to there customers. I'm might be leaving this company and having another company service my HVAC.

My water heater stopped working on the 4th of July and I called Comfort Zone the next morning…read moreexpecting to leave a voicemail being the day after the 4th. Not only did they answer, they had someone out a few hours later installing a new water heater!! They did a fantastic job, we're very fairly priced, and even cleaned up so good you wouldn't know anything was torn out or replaced. I will recommend this company to everyone I know!

Highly recommend. Answered the phone on the weekend. Scheduled me for a same day appt. Tech called…read morewithin 30 minutes of arrival. Mill arrived discovered the issued immediately. Offered two options. Corrected the problem with our AC. Also, installed a new WiFi thermostat. Very pleased with the price, service and products.

Excellent service will definitely recommend. Had sprinkler heads fixed and new main box.read more

Greg came out to me on a weekend.as an emergency He is a great professional. Don't bother…read morelooking any where else. Greg is the best!

I had the absolute best service in the world Robert was phenomenal, he was very professional. Their…read morewhole team is great. They got my extremely old roof top heating and heating unit working like new. Thank you are A-OK with me!

We have used A-Ok several times over the past few years. They are very competitive and have an…read moreexcellent response time. The best about their services is that once they come out and repair or install HVAC systems, they do it right the first time. Can't say that for others in the business.

This was the 2nd time I hired them for a required Madison Heights rental furnace inspection…read more Garrett Cross came out. He was on time, called when on his way. He was very professional and thorough, answered my questions too. Price was good, would use them again.

I'm very happy with the equipment they installed, that is 5-stars all the way. It works very well,…read moreis ridiculously quiet, and the install is beautiful; a work of art, just check out the photo. Edit: We just had them back out to install a new ductless mini-split system to cool our home and their work was, yet again, top notch! They were prompt in coming in and providing an estimate, helped match us with an electrician to get power to the unit, provided us consultation to help ensure we got a unit that would suit our needs today and tomorrow without overpaying, and then did another beautiful install. For both heating and cooling they are prompt, courteous, and I've never seen cleaner work. They are neither the cheapest nor the most expensive estimates we received, but they are the absolute best value for the money you're going to spend.

Instant response, great communication skills and job. Well done. Thank you Critical Heating And…read moreCooling

I have partnered/contracted Critical Heating & Cooling for our projects, for the past 7 years. They…read moreare very reliable, professional & consistent. I have enjoyed working with Critical Heating & Cooling. I recommend them for all your HVAC needs.

What a great experience/repair call we had with Mitchell from…read moreDetroit Furnace. Knowledgeable, charming, respectful.......Mitchell was. Thank you Mitchell for helping us. Jim Forrer

I do not recommend Detroit Furnace A plumber from Detroit…read moreFurnace came out to my home due to plumbing issues; all of the toilets and sinks were backing up or draining slowly. After looking at all of the toilets, the Detroit Furnace plumber stated that there was not an issue. Before the plumber left, I was able to replicate the issue. The plumber then stated that it could be caused by a number of things, all of which were not covered by DTE's Home Protection Plan, however for $375 he would start by snaking out one of the toilets to see if that was the problem. Believing this to be a scam, i.e. the plumber stated that he wasn't sure of the problem but would charge $375 to initiate a possible solution, I refused. Due to my extreme dissatisfaction with Detroit Furnace, the Home Protection Plan honored my request and sent out another company. The plumber from the other company was professional and very knowledgeable. This other plumber was able to immediately diagnose and resolve the issue, which was covered by my plan.

I have used the services of Oasis Heating and Cooling for a number of years now. They have done…read morebig boiler jobs as well as smaller furnace jobs for me. Dave and his crew are professional, knowledgeable and fair in pricing. I highly recommend you give them a call before you spend your hard earned money. They have been a blessing.

From the owner: Oasis has been proudly serving our community for over 15 years and has built a reputation for…read moreproviding top-notch heating and cooling service and quality workmanship. At Oasis HVAC, we understand the importance of keeping your home or business comfortable, and that is why we offer a wide range of services to meet all of your HVAC needs. From furnace and AC installation and maintenance to repair and replacement, our team of skilled HVAC technicians have the expertise to handle it all. Call us to schedule an appointment today!

I worked with Crystal. She immediately understood my issue and it was addressed immediately. I had…read moreno heat with 20 plus degree weather Called the "advertised company" and they gave me a four day wait. Too cold to wait. This company and the professional tech, Ron, were outstanding. I recommend them highly.

I had an AC emergency.... on the weekend.... at night. I reached out to Dennis through yelp and he…read morewas super responsive and ready to help. His responsiveness immediately put my mind at ease that the problem would be figured out and solved. He and his team came out and checked out my system and took steps to identify and fix the problem. After everything was done, he followed up to make sure the problem was indeed solved. Not only am I extremely happy with the service that I recieved, I have the piece of mind that I can call Dennis and his team if I ever have any HVAC needs (or emergencies) in the future.