If you are looking for a local business that genuinely cares and is invested in its community, then…read moreI strongly recommend using Leith. I had my A/C and humidifier replaced this week. From the moment I submitted a request to talk with someone, I received prompt and clear communication from everyone I worked with at Leith. They stopped by my home to learn more about my home, family, and needs. Jake provided me with clear options, answers to my questions, and recommendations that matched what I was looking for with the project. They gave me options and quotes that let me feel in control of a big purchase. I never once felt pressured into spending more than what I was looking for and they were flexible to my needs instead of the other way around. They completed the project quick and the new unit worked great. Jake, Brian, and the team checked in from start to finish and I won't use any company but them for any future projects!

Rip off! Stay away from this company. Charged 500 dollars for a 40 dollar part with labor that took…read more30 minutes. Takes advantage of elderly people. Also, had them do a furnace cleaning. Just as dirty inside the compartment as before they came. And left dirt on the floor. Vacuum maybe?!

Had a new whole house humidifier installed. I called them and had it installed a couple of days…read morelater. Excellent service, friendly staff.

Courteous and efficient and professional! Very happy with…read moretheir service today and the installation of our new heat pump last year.

Quick service, Great price, FABULOUS CUSTOMER SERVICE! Will use again and again!! They installed a…read morenew hot water heater!

Had my hvac review using air-rite. The technician who serviced my unit Jake was very professional…read moreand knowledgeable. Answered various questions that I had and took the time to explain various settings on my humidifier based on winter temperatures. Overall very satisfied with service provided.

I needed a new A/C unit and had a couple of issues with a very old furnace. I have always received…read moreprompt, courteous, and high quality service. Highly recommend.

This is my first review, EVER: (Once upon a time we had the Yellow Pages to help us find reputable…read moreservices....Uncle Ted provided reviews!) DeKalb Mechanical has serviced my furnace 3 times in the 6 years since I've owned my home, and this week assisted in a chimney replacement. I chose DeKalb Mechanical because the brand new furnace had been installed by them before my purchase. Andy & Charles have always listened patiently to my frantic description of the problem and sent repair technicians within the day. The techs are consistently courteous and knowledgeable and pretty good about cleaning up after themselves.. The final charge always seems high to me - they're probably competitive - I'm "old", living on a fixed income, and think any service costing more than $200 is too much! I've been particularly crabby these last two weeks when I finally established that my various furnace issues have most likely been related to a roof leak adjacent to the chimney. (Had the roof repaired in 2019!) The first estimate blamed the flashing, and bid $2000 for the flashing and a plywood/shingles replacement. A second estimate with a different roofer found NO issues with the flashing but said there was no cap - estimated charges $400. (I liked the 2nd bid better, but even I could see the flashing was rusted out.) Finally, the first contractor proposed replacing the brick chimney & flashing with a B-vent, requiring the coordinated assistance of my HVAC people - the best estimate was 2 grand for the roofer and not more than $1000 for the furnace folks. My final charges:$2850. I was fuming when I completed the review - assigning only 2 stars. (I've spent thousands of $ on roof repair and furnace servicing and the leak was probably present before I bought the home!) But that is NOT THEIR FAULT!! Before the ink could dry on my review Nathan, DeK Mech's man that oversaw the project, was at my door to find out what he (they) did wrong! Nothing. They did nothing wrong. They did it ALL RIGHT. Arrived an hour before originally scheduled, performed their work efficently and worked as a team with the roofers. I'll be calling DeKalb Mechanical this fall before I start the furnace for the season. Keeping my fingers crossed!

We woke up and noticed our heat was about five degrees below our thermostat's setting. I went…read morethrough all the troubleshooting steps (batteries in the thermostat, clogged ducts, restart, etc.) and then called around for service and wasn't hearing back from anyone. So, we took our chances with Temp. Control Maintenance based on their Google Review. Sure enough, Tony answered and said he was 18 minutes away. He showed up, diagnosed the problem, repaired it for a fair price, and our furnace was back online in no time! The tech was very nice, knowledgeable, and we have no complaints. We'll be calling for future service!

Excellent Service & Install! I was quoted a very steep amount by one of the large HVAC companies…read moreand decided to shop around. A friend told me about how great her experience with Temperature Control Maintenance had been, so I gave them a call. I cannot say enough good things about this company. Tony the business owner was prompt, professional, no pressure and best of all very trustworthy! I received a very reasonable quote with Temperature Control Maintenance and was very impressed overall. Today I can say I'm very satisfied and comfortable with my new Sure Comfort heating and cooling system. I'd absolutely recommend this company to anyone for all your HVAC needs!!!

I would recommend Mike at Icon HVAC 500%. He's honest, wonderful pricing, and super friendly. He…read morereally knows furnaces and AC units. He fixed my heating problem in 3 minutes! Mike came out the same day and his truck if fully loaded with the right tools and parts to fix everything I needed done. While here, he worked on my AC to make it ready for the springtime. You won't be disappointed.

Furnace completely broke down on a Saturday night. Called at 7:30 a.m. on a cold and snowy Sunday…read moremorning and Mike picked up on the first ring. Was out to our house by 9:30 a.m. having to travel 17 miles and our furnace was fixed by 10 a.m. Had the required part in his truck. Would highly recommend him.

Called a few days ago for a failed zoning damper on my furnace. Non emergency but was out within a…read morecouple days and even adjusted their schedule twice for us due to something coming up on our end. Friendly, professional and adaptive. Problem fixed on the first visit. Definitely would call for future needs should they arise.

I had a very frustrating experience with this HVAC company. They came out about three weeks ago to…read morecheck our system and told us everything was working fine and that the unit was in good shape for its age. Fast forward three weeks, and the system completely shut down again. When they returned, instead of properly diagnosing the issue, they immediately pushed us to buy a whole new unit. They also wanted to cut into the drywall and made it clear that any damage caused wouldn't be their responsibility -- even though the setup had worked perfectly for over 25 years. Thankfully, we got a second opinion. That technician immediately noticed that the previous tech had left multiple components disconnected and hadn't even reassembled the system properly. The second company was able to fix the issue quickly and at a fraction of the cost -- no drywall cutting, no upsell, just competent service. This was a completely unprofessional and disappointing experience. I would not recommend this company to anyone looking for honest, reliable HVAC work.

Giovanni from Grays Mechanical provided an exceptional experience from start to finish. He was…read moreprofessional, punctual, and incredibly friendly. He took the time to thoroughly explain the issue and walk me through the solution, making sure I felt confident and informed every step of the way. What really stood out was his attention to detail and commitment to doing the job right--not just quickly, but correctly. His HVAC knowledge is second to none, and it truly shows in his work. If you're in Carol Stream and need honest, reliable HVAC service, I highly recommend Giovanni and the team at Grays Mechanical!

Been working with Gray's Mechanical for years now. Their staff is friendly and knowledgeable. We…read morejust recently had to have the furnace, ac unit, & water tank replaced in our rental. They were able to get everything ordered and installed within a very short timeframe and had everything back up and running without any issue. They are great to work with.