Reviews of local pros in Chicago, Illinois

They got it right, which is a rare thing in my experience. The team showed up on time, did the job efficiently, and explained everything clearly. I'd hire them again without hesitation.

KTS provided top-notch customer service. Their technician arrived promptly, diagnosed the problem on-site, and made the necessary repairs. The service provider took the time to explain the issue and address my concerns, ensuring a satisfactory outcome.

Great job! They delivered on the spot and their price was fair, considering I'd gotten other estimates. The warranty came out slightly better too.

I booked the heating system replacement and they arrived right on time. Their installation was top-notch, leaving everything spick and span afterwards. They're very responsive and do excellent work. John even went above and beyond by adding a filter slot for easy maintenance - it was a big improvement over my old unit where I had to open it up every time I needed to change the filter.

Before he left, John double-checked that the new unit was registered with the manufacturer so it'd be under warranty.

KTS and John were fantastic. They arrived on a weekday, worked tirelessly until late at night to ensure everything was functioning properly. Their professionalism and dedication are top-notch, and I highly recommend their services.

I needed emergency heating help after my apartment froze solid, forcing me to leave for nearly a week. The next day, John arrived promptly and discovered the issue was a blocked evaporator coil. Fixing it took under two hours - impressive considering the severity of the problem. He did a great job, and I'd definitely hire KTS again, highly recommending them without hesitation.

I had a serious issue with my heating system that just wouldn't stop flooding the basement. The city's work on the sewer outside my house was causing chaos. I tried several HVAC companies, but none of them would even return my call until John at KTS got back to me. He showed up super early - 7am on a weekday - and figured out what was going on with my system. He fixed it right away and gave some good advice for future maintenance. To be honest, my old system is basically done for; when I need a new one, I'll definitely be reaching out to KTS again. They were really responsive, professional, and even helped out a neighbor by jumping their car while they worked on mine.

I've had a consistently excellent experience with John from KTS. They helped me schedule regular maintenance on my air conditioning unit in a remarkably short timeframe. Within an hour of reaching out, I received confirmation of an appointment, which was even sooner than anticipated. On the day itself, John arrived promptly and demonstrated a high level of professionalism. He took care to verify that my unit was ready for the upcoming season, explaining each step he took along the way. His pricing was fair and competitive, and I've gained significant confidence in KTS and John's ability to meet my heating and cooling needs.

KTS did a fantastic job with my HVAC system. Their service was incredibly prompt, with clear explanations of what needed fixing and how it would be handled. The team was professional, courteous, and genuinely cared about our needs. With three years of reliable maintenance and one emergency fix, I wholeheartedly endorse their work.

Excellent service from a highly knowledgeable technician who left the work area spotless after completion. I'd highly recommend this company and will likely do so again, having already sent them to several friends.

Here's a rewritten version of the review:

I was pleasantly surprised when I called four different companies for a boiler service and they were the first to respond with a quote, book the appointment, and fix the issue. In contrast, previous experiences with other companies have been disappointing. The team from this company exceeded my expectations and earned our trust - we'll definitely be calling them again in the future!

KTS really stood out from the previous contractor. When they arrived, they pinpointed a new issue and showed how the other company had botched the job. They then offered me an unbeatable deal to get it done right. I'm sticking with them for all my HVAC needs moving forward. Their quick response and solution were much appreciated.

I've had a consistently positive experience with Jon and his team at KTS, who I wholeheartedly trust to deliver on their commitments. When I first reached out to Jon about an AC unit issue, he advised me to return to my previous contractor due to warranty obligations, demonstrating his focus on fairness rather than personal gain. After being repeatedly taken advantage of by the same contractor, I eventually turned to Jon for help. Despite having no availability for a week, he still managed to dispatch his team the very next morning and saved me a significant amount.

What truly sets KTS apart is not just their professionalism, but also their integrity and dedication to putting clients first. Their character and values shine through in everything they do. I have no hesitation in recommending Jon and KTS to anyone who wants reliable and trustworthy service - particularly real estate investors.

John and his team have been top-notch. They installed mini-split air conditioning systems at our place and were extremely polite, went above and beyond to get the necessary parts despite a tough supply situation, kept the mess to a minimum and caused minimal disruption, and quickly resolved the couple of minor issues that arose after installation. Their professionalism and responsiveness have won us over - we'll definitely be calling them for any future heating/air conditioning needs!

John fixed our Mitsubishi Minisplit headaches, untangled the mess and figured out what went wrong. His expertise saved the day, no question - would highly recommend KTS for similar issues.

John and his team were a lifesaver for us and our family, delivering exactly what we needed without trying to sell us new gear. They showed up on time every day, kept us informed daily, completed the job within the allotted time frame, provided the promised services, and left our home in the same condition they found it. Their professionalism and attention to detail were impressive, and we're now loyal customers who'll only use KTS for all our HVAC needs.

John stands out for his excellent customer service, making the experience genuinely pleasant. He instills trust through thorough explanations, visual aids, and a focus on getting the job done right - both quickly and effectively.

Great experience with this home services provider. They kept my heating system in good condition by checking it out before winter, fixed a small problem, replaced the humidifier pad, and left me with a spare part. Their expertise and customer service are top-notch, making them a great choice for anyone seeking reliable assistance.

Great service delivered on time, thanks to super friendly staff. The only minor hassle was playing phone tag multiple times for scheduling, but it was well worth the effort. Their reputation preceded by a friend's glowing review, I opted for annual servicing instead of going bigger.

We're extremely grateful for the help from John and KTS team. Years of poor airflow in our home finally got resolved with their assistance. They replaced a 17-year-old unit, fine-tuned dampers, and adjusted AC to ensure even cooling throughout our entire house.

John was knowledgeable, attentive, and reasonable. We'll definitely be loyal customers going forward.

John came across as highly professional from the start. Choosing his consultation method proved to be a smart move, saving me both time and cash on the issue. He was extremely patient and knowledgeable, providing great service. I'd definitely use them again in the future for any maintenance work needed.

We've had an amazing experience with John and Kriss from KTS Heating - they completely overhauled our duplex condo down unit, swapping out old Carrier equipment for new Carrier gear and a shiny new radiant floor system to replace the one that was on its last legs. We originally only wanted radiant flooring done last year, but this year they came back to re-quote the whole shebang, including AC and the radiant system. The quality of their work is top-notch - we ended up snagging significant rebates through People's Gas for going with high-efficiency products, which will net us a big tax credit next year.

Replacing pricey equipment isn't exactly fun, but we're confident our new system will hold up for years to come. One of the standout features was how efficiently they installed everything - it took them just one day to get all that done in our tiny condo closet! The radiant flooring was a game-changer, especially since our downstairs living space was freezing cold all the time before. They also managed to squeeze in some extra storage space, which is a total bonus for us given our condo's limited square footage.

Now, with the floors at a cozy 78-80F, the whole downstairs feels warm and inviting - even during Chicago's coldest winter months. We couldn't be happier with the results, and we're already planning to stick with KTS for all our future heating needs!