If you are looking for our St. Charles location
Click Here


Heating & AC Service in Willowbrook

TDH Mechanical has been trusted by Willowbrook residents to provide exceptional HVAC services since 1988. In our 36 years, we’ve worked hard to build a reputation for excellence and strive to be the largest ac repair specialist around. In fact, we’ve proudly become known as Chicagoland’s Most Trusted Trane Dealer! Our mission is to ensure Willowbrook homes remain safe and comfortable throughout the year.

Our most requested services include:

  • Willowbrook Air Conditioning Install
  • AC Repair in Willowbrook
  • Willowbrook Furnace Repair
  • Heating Installation in Willowbrook
  • Willowbrook Indoor Air Quality

Air Conditioning in Willowbrook

When the summer heat and humidity in Willowbrook become too much to handle, TDH Mechanical is your lifeline. We provide a comprehensive array of air conditioning solutions, from top-tier installations to maximize your comfort to detailed tune-ups that enhance performance, and prompt AC repairs to keep you cool. To schedule heat pump or AC service in Willowbrook, give (773) 342-4338 a call.

Heating in Willowbrook

When winter arrives in Willowbrook, a dependable heating system is your best friend. TDH Mechanical understands the importance of keeping your family warm during the coldest months. Whether you have a furnace, boiler, or heat pump, we have heating services to meet your needs. Our expert installations provide warmth, our regular maintenance keeps your system in peak condition, and our fast repair services ensure you're never left out in the cold. So, the next time you need a heating company in Willowbrook, give (773) 342-4338 a call.

Indoor Air Quality in Willowbrook

At TDH Mechanical, we understand that your family's health and well-being are of utmost importance. That's why we've made it our mission to provide the residents of Willowbrook with state-of-the-art air quality solutions. With our advanced technologies and expert services, you can trust us to help you create a home environment where your family can breathe easily, knowing that their health and comfort are in capable hands.

Get Your Free Quote

Fast, reliable, and quality results. Contact us for a free quote today.

Get Started

Our Services in Willowbrook

Air Conditioners

Trust us to help your Willowbrook home stay cool in the heat of the summer. From air conditioning tune-ups to air conditioner repair to installing a new ac system, TDH Mechanical is the pro to know.

View Cooling


Don’t suffer no heat, poor heating, or high energy bills. TDH Mechanical fixes and tunes furnaces in Willowbrook. We can also provide you a quote on installing a new high-efficiency furnace. To take advantage of our furnace services, give (773) 342-4338 a call.

View Heating


Do you heat your home with a boiler (aka hydronic heating) system? TDH Mechanical is the expert Willowbrook calls when boiler problems arise. From simple repairs to installations and maintenance, there’s nothing our Willowbrook heating contractors can’t handle.

View Boilers

Water Heaters

TDH Mechanical keeps the hot water flowing for homeowners in Willowbrook and across the Chicagoland area. We install, service, and repair both traditional and tankless water heaters.

View Water Heaters

Air Duct Cleaning

Willowbrook homeowners are often surprised to learn how dirty their ducts are! Having TDH Mechanical professionally clean your ducts can help reduce levels of dust and improve air quality. Call TDH Mechanical, Inc. to schedule service with our Willowbrook duct cleaning experts.

View Air Duct Cleaning

Air Filtration

If you or someone in your Willowbrook home suffer from allergies or other respiratory conditions, ask TDH Mechanical about installing an electronic air purifier or filtration system. These can remove contaminants from the air, allowing you and your family to breathe easier. Not sure if it will help? Have us come out for a free quote on air purifier installation in Willowbrook.

View Air Filtration

Commercial HVAC

Ensuring the comfort of employees and customers in your Willowbrook office or business is an important responsibility of property managers. Partner with TDH Mechanical to make your job easy. From large-scale jobs to small fixes in Willowbrook, our commercial HVAC technicians are here and ready to take the call.

View Commercial

The TDH Mechanical Advantage

Why Chicagoland Homeowners Choose TDH Mechanical

  • Stability: We’ve been around since 1988 and will be here tomorrow.
  • Experience: In our (#CompanyAge}, we’ve gained invaluable experience—we’ve seen it all.
  • Certified: Our techs are certified by NATE (North American Technical Excellence) and the EPA.
  • Compliance: Our team adheres to all industry standards and local codes.
  • Dedicated: Our team is loyal and committed to building long-term relationships with our clients.
  • Service Area: We work in more than 25 communities in and around Chicago.
  • No Subcontracting: When you work with us, you get a TDH-employed and trained professional.
  • Personal: No matter the size of your job, you get top-notch customer service from start to finish.

Call us for AC Repair in Willowbrook

At TDH Mechanical, we see every job in Willowbrook as an opportunity to surpass your expectations. Whether we’re installing a furnace, cleaning your ducts, or fixing your ac, our technicians are thorough and detail-minded. Our focus is on customer satisfaction—ensuring you get long-lasting benefit from the time we spend in your home. Call (773) 342-4338 and let us take care of all your HVAC needs.

Recent Jobs and Reviews in Willowbrook, IL

Rated 5.0 out of 5 stars based on 3 customer reviews


Excellent Service!
TDH installed my system and has been servicing ever since. They provide excellent service at a fair price. They’ve performed warranty work at no cost in the past. This call was a simple fix but Ken was excellent and checked out the system for other issues before leaving.
BS - Willowbrook, IL 60527
Install Service
Sean - Willowbrook, IL 60527
excellent service
Ken did an excellent job and faced many obstacles. He had to clime a dangerous latter to get to the roof where there are about 70 units which are supposed to be marked the the unit numbers has all faded or washed away. I could not find any and it was a hot day about 83 degrees so most of the units were running. Ken got the job done and marked my unit 204 and my neighbors 103 with out unit numbers and hopefully the ink will not fade this time.
NielJean - Willowbrook, IL 60527

Job Locations

Ken H.
Ken H.
Repair Trane air conditioner
Willowbrook, IL 60527
Wally W.
Wally W.
Tdh install new Carrier Furnace heat pump coil media filter humidifier and infinity thermostat
Willowbrook, IL 60527
Willowbrook, IL - Tdh install new Carrier Furnace heat pump coil media filter humidifier and infinity thermostat
Wally W.
Wally W.
Estimate for new furnace heat pump coil humidifier and media filter
Willowbrook, IL 60527
Willowbrook, IL - Estimate for new furnace heat pump coil humidifier and media filter
Mark K.
Mark K.
Willowbrook, IL 60527
Alfredo E.
Alfredo E.
Ac and furnace install today in Naperville!
Willowbrook, IL 60527
Ken H.
Ken H.
Clean Trane air conditioner
Willowbrook, IL 60527