Josh was extremely Knowledgeable and helpful Explained and…read morefixed issue in a timely manner Fairly priced with great communication. Highly recommend!

They were wonderful--we had no cool air and I have asthma. They came that day!!! Pleasant to deal…read morewith in every way! Five stars for these guys!

The technician, Dennis arrived right on time. He checked & cleaned my furnace preparing it for the…read morewinter. Dennis was kind enough, since I was a new homeowner to answer all my questions, make recommendations on filters and review my thermostat with me. He even provided & put in new batteries in the thermostat for me. Super experience, very affordable. I highly recommend Ron's Heating & Air of Sycamore.

Everything is the customers fault with this company. The owner talks to you like you're beneath…read morethem when you question their work or judgment call. You are right I am not a expert in heating and cooling that is not my profession. I hired another company turns out there was a leak in the fiberglass tape that caused the issue. Ron's heating blamed the builders saying not enough insulation or etc. Well you're wrong. You guys come to my house for 10 minutes . Yes it's on camera you can say different but it shows when you stepped in the doors and drove off. Total 12 minutes. You guys want to charge me a diagnostic fee FOR WHAT? You guys didn't diagnostic the issue another company did within 30 minutes. Get a second opinion before hiring this company because they are a one sided company and that side only Benefits them. I have my newborn room with improper heat coming into the room. It's 61 degrees when the house is set to 70 degrees and they blame the builders when it was due to their issue that they didn't even diagnose another company did. JOKE of a company. I tried paying the diagnostic fee that I honestly shouldn't because they rushed and didn't even spend the time to figure out the cause. They wanted to charge me a 3% fee for a debit card. Then they tried to charging me for a visit the the prior owner did and never collected on me. The owner wife was trying to pull a fast one on me then said ohh sorry I didn't realize it was a different name. Luckily I asked my total before providing my debit card number

Had a problem with my furnace and the techs at J and G came to my house diagnosed the issue that…read moresame day. The other HVAC company I called before them said that they were too busy and the other said I needed an entirely new unit. Jose @ J & G diagnosed it with in minutes and it turned out to be a sensor. Saved me literally thousands of dollars and fixed it in less than 1 hour.

From the owner: HVAC has been my passion since 2003. I continue working on and advancing my education to improve my…read morecraft. I am available for residential and commercial projects. I guarantee honesty with all of my work. I will troubleshoot the issue and make sure my clients understand the problem. Solutions are discussed together, options are always available. I look out for your financial benefit and satisfaction. -Jose

Called for service on furnace due to noise. They came out checked said something was in fan area…read morecleaned it out. Also checked my capacitor and suggested I replaced it due to it not running at full compacity which I did(obvious up charge). They gave me quotes for a few different options to do like replacing whole unit, cleaning ducts, replacing fan etc. I said I'll have to talk it over. Called a couple weeks later to find out the price again. They wanted to charge me another service fee so they could come out again to tell me the quotes from prior visit. On top of another service fee for the service when they do the replacing of part. So up to 3-4 service fees for one issue that they did not resolve. At $100 dollars a pop not including anything else.

Always friendly service and on time! Very efficient job and…read morecleaned the area after performing the work.

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!

In 2019 Chris Hull pulled off a miracle by repairing my central A/C that 3 other local companies…read moreinspected & told me I had to replace unit!! Saved me $5-10K at that time. Have recommended him to other ls who've all been pleased with his ability to get their repairs done quickly & more importantly done RIGHT. I've had a furnace that has needed repairs multiple times since 2007. It finally took it's last breath recently although Chris tried to his best to get it going. Chris helped me decide which new furnace to get ordered after I asked him which furnace would he get. He explained the choices & a decision was made. The furnace arrived in 2 days & was installed in an afternoon. Furnace works perfectly!! For a reasonable price too I might add!! You don't need ro look any further for a great HVAC contractor. His work ethic is rare. Thank you so much for all the help!

I recommend their services 100% Honest, Reliable Service,…read moreGreat Price Guarantee, and the job gets done fast and correctly the first time! Ive had several emergencies and they've been at my doorstep Very Fast! Explains things very well to avoid future problems. overall 10/10 service! Had my AC fixed years ago. then it was time to replace and they did an AMAZING job! I've also used their duct cleaning service and I totally recommend it! Thano You So Much Chris! we appreciate your service

Had our ducts cleaned by Osric he did a wonderful job and found some interesting items that had…read morebeen dropped (possibly thrown) down the vents by the kids. He showed up on time, was very friendly and you could tell he knew what he was doing. I would definitely recommend!

From the owner: Open Air Duct Cleaning is a Veteran Owned and Minority Owned Licensed Duct Cleaning company…read more We pride ourselves on excellent service and want to proved you with the a good experience at a fair price. We offer full home duct cleanings, dryer vent cleanings, furnace cleanings and furnace inspection inspections. Please contact us when you’re ready to have us provide better quality air!

I was very impressed with the quality of the job that the 2 young men did today! They explained…read moreeverything and I saw each step as they described it- they even cleaned my vent diffusers, cleaned behind the washer and dryer and cleaned out the dryer vent on the roof! I highly recommend them- price was very good !

Professional service all the way around. Prompt and very courteous. Would do business with again.read more

Stay away from this business! My entire cooling and heating system was left in an inoperable state…read more I called for a diagnostic of the air conditioner today because cool air isn't coming from the vents. I was told the diagnostic would cost $149. I asked to be informed of any repairs that had to be done. Technician checked the system and recommended replacing unit. We discussed replacement unit and cost. I was ready to pay deposit. In the next 10 minutes I was told that the model I selected is old and not available. New model costs $1000 more. I asked for a proposal to decide later. Technician told me that the visit costs $396. He said that he fixed air conditioner that was not working. He never told me that he is fixing anything. Through our the visit it looked like he was figuring out the problem. I talked to the owner and we agreed that any repairs that were done will be undone so that I do not have to pay for repairs. Then the technician removed all the wires from the board making both heat and fan unusable. He did not just undo the "repairs", but made entire system unusable including fan and heat which were working before his visit. See the photos to show what was done!

Reply to 2 reactions from Harmonic on my 1 star review…read more 1. A. & K. claimed A. fixed my heater Tuesday; lie. Bad customer service. Harmonic deserves 1 star, but all the starts below 5 are NOT indicated on the Google graphic of the numbers of review stars 1-4: false. 2. I never promised a review pull-down for a discount. My husband & I have better things to do than having an "agenda" as Harmonic accused. My husband was on a business trip. 3. I never called for an emergency repair. I did not switch from repair to cleaning & maintenance. I asked A. if C & M was possible afterward, unaware of 2 more with no heat. Harmonic called me "selfish" for this. 4. Any possibility A. and K. have unconscious biases towards people like me? They accused us of "manipulating" what? To save a few hundred bucks, while we spent in the tens of thousands at Harmonic's better former (aquired) company) you imagined up? 5. How could Harmonic accuse me of lying about my pain. Because I was able to and had to carry my 10 lb dog for a short moment because of her barkin? Why do I even have to explain my chronic severe back pain and mostly failed back surgeries and weak immune system? 6. I had no "agenda," but getting my heate fixed. I am not playing any "game" as accused. I am standing up for myself. 7. K.'s statistics on the number of my Goole reviews are false. 8. A. & K. are the ones who were "aggressive, harsh, unethical, disrespectful, and manipulative." Stop projecting and gaslighting. I wish I would remember to record conversations when I am alone with a person like A. Why did K pull down his absurd replies on Google?