Prompt and professional, as always. I live in the county, which usually adds extra cost ex…read more deliveries, or time delays/limitations ex. only certain days of the week. I called today after 4pm after my hot water tank stopped working, they showed before 6pm same day. Prompt and professional as always.

I contacted 5 companies to replace my HVAC system. CK Mechanical was very knowledgeable as to what…read moreI needed, easy to contact with any concerns or changes I desired. There technicians were excellent. They also gave me the best price and warranty (parts and labour) for the same comparable units that other companies quoted and even got me an instant manufacturers discount for researching American Standard (Trane) units as one of the most reliable units in the market. Ron Swintak

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.

- our first impressions with Langemann were very favorable -…read morereaching them by telephone, or confirmation by email email was an improvement over the major H&C firms - inspection service went well - we are optimistic

There are two types of people in this world... People who have called Langemann Heating and…read moreCooling, and those who should have. You can find the latter usually a little less comfortable and a little lighter in the pockets vs the former. Exceptional communication and top notch quality in everything they did (new furnace and AC). Every aspect of the job, from scheduling to cleanup, was done with the utmost professionalism and quality workmanship.

Guaranteed Comfort Heating and Cooling is by far the city's most reliable company with the best…read morequality & value. The professionalism, customer service and knowledge that is provided by this team is remarkable! Chris, Mick and Dante have been exceptional with overseeing any concerns and questions. We have been with them for a few years now and it was the best decision we ever made! We Highly Recommend Guaranteed Heating and Cooling!

We were very happy to see Dave this Winter during the coldest week of the year .We had a power…read moresurge and blew the mother board .Dave came the same day and saved the day .Very friendly reasonable cost. Highly recommend Dave at Comfort Tek . Pam and Pete Essex

Fast and efficient service. My a/c wasn't working overnight, called in the morning and a technician…read morenamed Dave, came that same day within a hour of calling. Great service! Highly recommend for heating and cooling needs. Affordable service as well, doesn't rip you off like some companies.

Anthony and Ramon were great. They arrived on time, were so polite and pleasant. They did a very…read morethorough job cleaning the ducts and even found some surprises in a duct--a giant toy diamond. Must have belonged to previous owner. They cleaned up everything and moved all furniture back. We laughed a lot together, too. It was a good experience. And, they loved our Halloween decorations.

Showed up on time and resolved my issue without much effort. Employee wore a mask, and booties to…read moreprotect my floors. I thankfully saved a lot of money, which is very much appreciated. Other companies wanted double the cost just to come out and inspect. Company is worthy of consideration for fireplace inspection and safety.

$100 for a quote... then when calling them to actually do the work, they haven't responded. To…read moreseveral calls.* I'd like to get this work done, but D&F doesn't seem interested in doing more than taking the $100 for the quote. *Note the phone number on the quote (313-870-8755) does not work. Called the number on Yelp, which is oddly similar.

Greg was quick to respond and scheduled a startup and check service appointment within 24hrs. Easy…read moreto work with, friendly and very reasonably priced. Replaced two sprinkler heads, changed a valve and pipe fitting and ensured everything was in working condition. Highly recommend!

A top-notch job. Greg was very thorough and explained everything in detail. A big improvement…read moreover the sprinkler repair companies I've used.