Heating & Cooling HVAC Services - Cary
We’ve been the trusted choice for Cary, Illinois HVAC services for nearly 30 years.
Cary HVAC Services
For nearly 30 years, TDH Mechanical has been a trusted provider of Cary HVAC services. Not only are we Chicagoland’s largest HVAC contractor, but we’re also proud to be known as Chicagoland’s Most Trusted Trane dealer! We’re committed to ensuring that your home stays comfortable and safe, year-round.
- Cary Air Conditioning Install & Repair
- Cary Heating/Furnace Install & Repair
- Cary Indoor Air Quality
Cary Air Conditioning
As your Cary Illinois air conditioning company, you can count on us for fast, affordable air conditioning installation and repair services. No matter what make and model you own, we have the techs, tools, and training to repair your AC unit. Need a new air conditioning unit? We offer the industries top Trane air conditioners to keep your home protected from the heat.
Cary Heating
Looking to prepare your home for the cold months ahead? At TDH Mechanical, we deliver reliable Cary HVAC services that include industry-leading Cary heating systems. Our installations are quick, ensuring that your home never goes long without heating. We also offer same-day service for repairs on furnaces and heaters to help you stay comfortable year-round.
Cary Indoor Air Quality
Your Cary indoor air quality is an important maintenance aspect of your home that is often overlooked. From minor allergens to serious hazards, your air ducts can collect years’ worth of dust, mold, and debris. That’s why we offer several solutions to keep your Cary’s home air quality as clean as possible—at a price you can afford.
Schedule HVAC Services in Cary
When your Cary home needs heating, cooling, or ventilation service, go to the one-stop source you can rely on for top-quality service every time. Choose TDH Mechanical and get the AC and furnace maintenance and installation solutions you need at a price you can afford. Give our friendly team a call to learn more, or fill out our online form to schedule your free quote today!
Here To Help You
Our Services
How are we different?
What sets us apart from other HVAC companies?
- We have been around since 1985, and have over 30 years of experience.
- We serve over 200 towns throughout the Chicago area including, Cary.
- Our team is NATE and EPA certified, and comply with industry codes and standards.
- We do not subcontract our work to third parties. Your technician is a full-time professional at TDH Mechanical, handpicked by Tim himself.
- We have a team of loyal professionals, some of whom have been with us for several years. This results in dedicated experts who are interested in building long term relationships with our customers.
- We are authorized Trane dealers and offer the Trane Satisfaction Guarantee.
- Top notch, truly personalized service from start to finish. No matter the extent of the job.
There is no problem too small or overwhelming for our team to tackle. We treat each and every service call with the same level of urgency, whether it’s a new furnace installation or air duct cleaning. All of our technicians carry a customer-first mindset, allowing you to benefit from unparalleled workmanship and a close 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.
Cary, Illinois
Cary is located at 42°12′47″N 88°14′54″W / 42.21306°N 88.24833°W / 42.21306; -88.24833 (42.2129566, -88.2483260).
According to the 2010 census, Cary has a total area of 6.358 square miles (16.47 km2), of which 6.27 square miles (16.24 km2) (or 98.62%) is land and 0.088 square miles (0.23 km2) (or 1.38%) is water. It is located on the Fox River.
Other Areas We Serve in Illinois
- Huntley Heating and Air Conditioner Repair and Installation
- Wonder Lake Heating and Air Conditioner Repair and Installation
- Algonquin Heating and Air Conditioner Repair and Installation
- Union Heating and Air Conditioner Repair and Installation
- Marengo Heating and Air Conditioner Repair and Installation
- Mchenry Heating and Air Conditioner Repair and Installation
- Woodstock Heating and Air Conditioner Repair and Installation
- Fox River Grove Heating and Air Conditioner Repair and Installation
- Lake In The Hills Heating and Air Conditioner Repair and Installation
Get Your Free Quote
Fast, reliable, and quality results. Contact us for a free quote today.
Get Started

We're Ready to Help!
Open Daily from 8:00 AM to 5:00 PM. Call us to schedule an appointment!
At TDH Mechanical we offer 100% free install estimates! Call us or complete our quote form.