If you are looking for our St. Charles location
Click Here
Call a Heating and AC Company That Cares

Your Trusted HVAC Company in the Chicago Area

For 36 years, TDH Mechanical has been committed to satisfying customers in the Chicago area. This dedication to making you smile is reflected in the reviews below and our high ratings on multiple review sites. When you couple these testimonials with our heating and air conditioning expertise, why would you go anywhere else? Whether you need a new furnace installed in Chicago or just want to fix your old heat pump, our highly-skilled HVAC technicians are ready to help.

We take pride in being a locally owned heating and air conditioning company. As true Illinois natives, we've been serving this area for almost four decades. This means there are few residential or commercial issues we haven't seen before. Everyday we wake up with one goal in mind: keeping our slice of Chicago (and Saint Charles) comfortable.That's why, whether you're looking for furnace repair or heat pump replacement, you can rely on us to get the job done right.

To schedule furnace repair or furnace replacement, give us a call at (773) 342-4338. We look forward to adding you to our family of happy customers in Oak Park and Chicago.
We Set Ourselves Apart From Other Chicago HVAC Companies


  • We have over 36 years of experience in Chicago area.
  • We service over 25 towns in Chicago and surrounding areas.
  • Our staff comply with all industry codes and are certified through both NATE and EPA.
  • Your HVAC technician is a company employee handpicked by Tim himself.
  • Our team of HVAC professionals has been with us for many years. This lets them get to know our Chicago customers on an intimate level.
  • You can always count on us to provide super, personalized service. This is true no matter the job's scope or size.
There is no problem too big or small for our HVAC experts to tackle. We treat each and every service call with the same level of urgency, whether it’s an air duct cleaning or a new furnace installation. All of our Chicago HVAC technicians put you first, giving you the benefit of high-quality workmanship and superior attention to detail. Our goal is the same as yours: to help you experience a truly comfortable home environment without unexpected interruptions from your heating and cooling system.

To schedule furnace service and experience the TDH Mechanical difference, give us a call at (773) 342-4338.
Allow our techs to repair your Water Heater in Lincolnwood IL.
HVAC Professionals in Chicago offering


Check out our Water Heater repair service in Chicago IL along with the other over 5,000 people per year have.
Served Per Year
See what your neighbors think about our Furnace service in Oak Park IL with our multiple 5-star reviews.
5 Star Reviews
Call TDH Mechanical, Inc. for great Boiler repair service in Lincolnwood IL as we have been for over 34 years.
Years in Business
Trust our 18 techs to service your Heat Pump in Chicago IL
Expert Techs
See what your neighbors are saying about our Furnace repair service in Chicago IL

Our Service Area

We are proud to be local to the Chicago area. Our HVAC technicians know how to get around and all the best spots for lunch. We've also served many of your neighbors. Visit a city page below to see what other people in Chicago thought about our HVAC services.
Learn more about Boiler repair in Lincolnwood IL.

Heating Services Designed For Comfort

Our Heating Services in Home

  Heating Installation

Every heating system, no matter how well taken care of, eventually wears out. You can typically get around 15 years out of one before major issues arise. Older units, however, may not be as energy-efficient as newer models. When it's time for a new installation, you can trust TDH Mechanical . With 36 years of expertise, we're proficient in boiler and furnace installation Dial (773) 342-4338 for a free heating system installation quote in Chicago.

  Heating Repair

Boiler or furnace leaving you cold? Has it stopped producing enough warmth? Don't fret! Call TDH Mechanical to schedule heating repair instead!. Our HVAC professionals are adept at identifying and solving heating problems, be it a faulty ignitor, a malfunctioning blower, a bad heat pump, or a temperamental thermostat. Regardless of the issue, our team is equipped to swiftly diagnose and repair your heating system. For prompt heating repair services in Lincolnwood or Lincolnwood, get in touch.

  Heating Maintenance

Given the demands placed on furnaces and boilers in Chicago, they need regular TLC. With our comprehensive heating maintenance services, we've got you covered. Regular inspections and tune-ups ensure the durability, energy efficiency, and smooth operation of your heating system, avoiding sudden issues during those chilly winter months. Curious about our HVAC maintenance plans in Oak Park? We're just a phone call away!

Sign up for our Heating maintenace plan in Oak Park IL to ensure your home stays comfortable.
Do you want cleaner air? Do you enjoy saving money on AC service in Chicago? Then, you should call us to schedule HVAC maintenance! Getting furnace tune-ups extends the life of your HVAC equipment and takes some of the sting out of your heating and cooling bills. For more information on Furnace maintenance plans in Chicago, reach out to us by phone or email.
Check out our Financing options in Chicago IL with FTL Finance.
Check out our Financing options in Chicago IL with Wells Fargo.
For the best Heat Pump replacement in Lincolnwood IL, choose a BBB rated company.
For the best Heat Pump replacement in Lincolnwood IL, choose Carrier
For your Water Heater repair in Oak Park IL, trust a HomeAdvisor Approved contractor.
For your Furnace repair in Lincolnwood IL, trust a HomeAdvisor Approved contractor.