We are a family-owned and operated company offering 3 decades of experience that is dedicated to providing an enjoyable service experience for you.

We love what we do, we take our job personally. Each person on our staff of 8 is handpicked by owner Tim Hancz. All of our work is done by our staff, we do not subcontract work to 3rd parties.

Sometimes heating and cooling issues are straight forward, and sometimes they are the only the tip of the iceberg. We always prepare the immediate and obvious problem, but always carefully look at all parts of your system. This will be our approach on sales or service calls. Heating and cooling systems are complex with many distinct parts they get installed, repaired at different times. We are accurately aware of this at all time.

Services Offered:
Service all brands of furnaces and air conditioners
Installation of gas furnaces by Trane, Rheem, Carrier, & Goodman.
Installation of air conditioners by Trane, Rheem, Carrier, and Coleman.
Service and installation of boilers of all brands. Some of our favorites to install are Peerless, Weil Mclain, Munchkin, and Quietside.
Radiant floor installations. Both Gas & Geothermal
Service and install water heaters of all brands. We like Rheem!
Service and installation of Geothermal Heating and Cooling System. We like Waterfurnace and Climatemaster.
Duct Cleaning of residential and commercial heating and cooling ducts.
Service installation of humidifier by Aprilaire, Honeywell, Trane, and Carrier.

Contact Details

  City Chicago , IL
  Zip Code 60613
  Address 1623 W Montrose Ave
  Phone Number (773) 342-4338

Products & Services


General wear and tear kind of damage can happen to any system, but it’s important to notice the signs before they end up shutting your system down when you are depending on it. Some of the signs that may precede an AC breakdown include leaking refrigerant around the evaporator coil, frozen coils, lukewarm air coming from the vents when it should be cold, knocking or banging noises coming from the main unit and jumps in your energy bill for no apparent reason. If you see any of these signs, don’t wait long before you call for help.

  • I would recommend this business

Just had new Goodman 5 ton AC unit and A coil installed by TDH Mechanical. I received their quote within 5 minutes from Tim after he evaluated my requirements. They offered a 12 yr warranty on all parts and labor including free Freon recharges whenever needed. Pricing was fair and towards the low end of the other quotes I received. Their expert crew (Rolando, Demitry, Alfredo) arrived on time and were able to easily handle re fabricating the sheet metal to adapt my old furnace to a considerably taller "A" coil. This extra work maybe added 2 more hours to the install but in the end the price was still as quoted. They finished around 9:00 pm worked 6 Hours and never took a break. Every thing was cleaned up better than before they started.

Value for money
Service & support
Overall ratingExcellent

Customer Testimonials

I have hired TDH twice because they offer the two things that I value most: fair pricing and speedy service. Unlike other contractors, TDH gives you the best price from the get-go: no negotiating necessary. When I call, I get a call back within a few hours and even during busy times never more than 24 hours from my initial call. TDH is efficient, thorough, and responsive. Another plus is that TDH will text and email as well as call to keep you in the loop of service appointments as well as to scan and send documents like proof of insurance. Overall, they are a solid company that I would gladly recommend to others and use again myself.

I couldn't be happier with the TDH performance, price, and service. Everything was as expected. As a licensed home inspector, I know good work when I see it. And these guys did incredible work. Tim was wonderful to deal with as the owner, who came out and bid the job. And my installer, Kris and his partner Erwin were both extremely professional, and did a wonderful job. Couldn't be happier about my experience with TDH and would strongly recommend them.

I was EXTREMELY pleased with the experience I had with Tim Hancz and his crew of men. Tim was a great guy to work with - very professional, not pushy, knowledgeable, and a man of his word. He told me I wouldn't be disappointed, and that I was in good hands. He was 100% right about that!! The guys that did the installation, Wojecht and Vlad, arrived right on time and worked two long full days. They were polite and obviously knew what they were doing. They left my basement cleaner than it was when they arrived! They vacuumed the whole thing. All the debris from the old furnaces/air conditioners was picked up and hauled away on day two. Things are working like a charm, and I am cool as a cucumber! Nice work!!! I would definitely recommend them to friends and family.

Louis cleaned my furnace and I am very pleased I discovered this company. From the start when I scheduled the appointment to the end when the technician left I was impressed.
He called ahead to let me know when to expect him. His curtesy and professionalism was much appreciated. He answered my questions and gave me a detailed list of the work completed.
This will be my go to company for heating and AC maintenance in the future.

We really appreciate the quick response and great service from TDH Mechanical. We woke up without heat in freezing temperatures, and Louis responded quickly and was onsite in a heartbeat! Great service, awesome communication about the issue / proper resolution, and extremely polite! THANK YOU!

We've been very happy with all the sales and service reps we've worked with over the last 5 years. Tim and his crew stand behind the products and warranties they've sold us. They don't try to push service we don't need.
The service reps are always on time, professional, cleanly, and kind.

Just awesome. They guys were great. Shout out to Lewis and Rolando. Competitive pricing. Quick turn around. I have used them on multiple projects in the past and will use them again.

I had my furnace and A/C replaced. The owner was very straightforward, didn't try to oversell, and was responsive to all my questions. Larry did a great job on the work, staying late to make sure the job was done right instead of rushing through. Pricing was very fair and there weren't any additional fees despite them doing a few small additional repairs.

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