They helped me out in an emergency situation quickly and professionally. The weekend after-hours…read morereceptionist and HVAC tech who repaired my system were both very helpful.

Furnace out, Darryl came over quickly and diagnosed it was shot, Early afternoon same day Bryan…read morecame over and measured, Next a.m. at 9 a.m. 3 workers led by Koda installed new Bryant furnace and thermostat by 1 p.m. . Cleaned up and took all debris away. Price was great and had forms to get rebates from Consumer Energy. Took charge card. I would recommend them !!!!! Call 248-682-2600

Came out within hours when our furnace went out! Said we could call, leave voicemails and even text…read moreand they'll get back asap. We will only use them and recommend them from here on out. Thanks so much for being amazing!

I had a system installled by a different company a few years ago and it was never charged…read morecorrectly. I called the famed T&G and they tried to rob me blind after they came out with some outrageous pricing for refrigerant. Contacted at least 5 other companies that would not tell me how much per lb they charge for refrigerant the tech will let you know after the diagnostic, no thank you. I message prime time here on yelp and the pricing was up front and reasonable. Tech arrived within the arrival time frame was knowledgeable and completed the task within 20 minutes. I call them first the next time i need service.

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!

Beware of this company they charged me double the price for a job.I had a part replaced on my air…read moreunit that cost 10-30 dollars.I was charged $650.My air went out on one of the hot days because live in a colonial style house it was extremely hot.I spoke with several other companys the job is under $300.Meanwhile I've tried to reach out to a manager several times and can't get a resoonse.

We had an emergency- leaving for vacation in 24 hours... hot water tank leaking…read more Kotz was not only able to respond without delay- they did a great job with good customer report. I was very pleased with their work and would definitely recommend.

They charged me $400 a piece to change a one ich broken gate valve with a ball valve that cost $25…read moreeach on Amazon. Be prepared to be shocked and gauged!

Easy to do Business with....service scheduled quickly, repair tech was amazing and reasonable rate…read more I really like they service both Plumbing & HVAC! Please give them a chance!

I had the good fortune of talking to Kevin. he walked me…read morethrough how to resolve a frozen pipe problem, spent 20 minutes on a call, and then requested I call back to let him know results. Very refreshing to find that knowledge & patience. 5 star ++

Donovan Uselman did excellent electrical work explaining the wiring system for my new furnace and…read moreanswering many questions. He went into the attic crawl space to inspect & modify any wiring changes needed. Very professional. Thank you!

First we waited all Friday. Technician showed up, and couldn't fix anything. Said he had called for…read morean 'expert' to come out Saturday, between 3 and 5. He was able to sign us up for care plan and get our credit card #. Zack said expert would be here. Don't worry. No call. No show. And the email Zack said we would get never came either. VERY DISAPPOINTED and concerned now about who has our credit card number!

In the spring of 2025 I needed a new HVAC company to service my air conditioner and furnace. I…read morewanted to find a company that did not advertise or a chain HVAC company. I signed a maintenance contract with Zilka in May of 2025. I'm so glad I did. Yesterday Jack installed a new whole-house humidifier that is perfect for me. In addition, I had called around for pricing the unit offered and their initial price to me could not be beat. I'm delighted with their service. A big shout out to the knowledgeable ladies that work in the service department and to Nathan in the Parts Department who helped me in this transaction. This company is the real deal when it comes to service.

Lalit was amazing! Came out immediately, diagnosed and fixed my problem in minutes for a fair…read moreprice! Highly recommend!

Nick and Vasili came out today to resolve an issue caused by a previously HVAC contractor sent to…read moreus back in 2022. The two gentlemen were prompt, professional and exceptionally competent at their craft. They made right a situation that a sub standard contractor horribly botched. These guys were awesome and very customer service oriented. Overall the experience with Detroit Heating and cooling has been very positive. I would recommend them for your HVAC work above others.

My 25-year-old furnace was limping along, and it was finally time to get a new one. I knew this…read morepainful day was coming sooner than later, and I didn't have a clue where to begin. I went through the three-estimate process (highly recommend it because you learn a lot!), and I chose Detroit Heating & Cooling. This was a significant purchase for me, and they were incredibly helpful and super patient. The installation went smoothly without any scary surprises. Justin and Travis were knowledgeable and professional. Justin explained the job and also showed me how to change a humidifier filter that hadn't been replaced in 15 years--oops. They are experienced and honest, and their pricing was very fair. I always dread dealing with any kind of home repair or installation, and I felt like DH&C genuinely worked in my best interest. Highly recommend.

They installed a whole home generator. Very pleased. Installation was quick and follow-up was very…read moreprofessional. Would recommend.

5-Star Review for Oak Electric…read more I can't say enough good things about Oak Electric! From start to finish, they've been dependable, professional, and impressively fast. They handled the installation of my furnace, A/C, and generator. Every single step was smooth, efficient, and stress-free plus competitively priced! What really sets Oak Electric apart is the people. I genuinely love working with my Oak team and I say "my" because they truly feel like an extension of my family. Whether I'm calling with a question or scheduling service, I'm always met with kindness, honesty, and a sense that I'm genuinely being taken care of. They NEVER dismiss my concern or questions. They show up when they say they will, do the job right the first time, and take the time to explain everything clearly. Plus they follow-up. I never feel like just another customer. They treat me with respect and care, every single time. If you're looking for a company you can rely on for quality work and a personal touch, Oak Electric is it. I wouldn't trust my home comfort and backup power to anyone else!

This company was excellent to deal with. They were fast to respond and confirm my appointment…read morewhen my AC wasn't operating. They charged a comparably lower diagnostic rate than their competitors. They showed up on time and were professional and were able to find the issue (blown capacitor) quickly and get it repaired for a reasonable price. I've saved them in my phone for future reference and will highly recommend them to anyone who needs their HVAC serviced.

Requested for tune-up service on central a/c unit. Tech took panels off the central a/c unit and…read morespray 1 can of coil cleaner. I had already performed this service about 2 summers ago. I Googled what is generally performed for standard a/c tune up. Here is what I did not see the Tech doing. Did not check refrigerant level. Did not open up furnace to inspect or clean evaporator coils. Did not test refrigerant levels. Did not lubricate moving parts. Did not test capacitors or amp draws. Asked for hot water tank flush. Mine had a weird ball drain valve. The last hot water tank installer put in to let out more sediment out from tank. It was not standard. Power Tech had to procure a fitting in order to allow garden hose type thread to be installed. It did not help that my floor drain was clogged in the basement. Another drain was located and the Tech's self coiling hose had to be stretched out to extreme extent. It put pressure on the fitting. And that made it so the water was squirting out of the fitting and getting all over the basement floor. The Tech only drained the tank once. No flushing/purging/refilling to get all the sediment out. No safety and components check. Tech should have stated a proper flushing could not be perform. Tech was on the phone much of the time. I ultimately left the room so tech could take his calls. 6/24/26 I wanted to update my review after owner commented. When I hired you, your demeanor should have been professional from the start. No customer should have to call you back a second time to ask you do to a proper job. You initially earned my trust when I hired your company. You have lost my trust by performing a really subpar job, but still collected top tier pay for the services. You have cost me to spend double and hire another company who will do the proper job. The job you performed was something I could, and have, done in the past MYSELF. I would not recommend your company.