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Call a Local Heating and Air Conditioning Company That Cares

Your Reliable HVAC Contractor in

Finding the right heating and AC company in Saint Charles should not have to be a hassle. Maybe you are wary because of a negative experience with past contractors. TDH Mechanical was established to give residents and commercial property owners throughout Chicagoland a trusted solution to their HVAC problems.

We saw a need for customer-oriented contractors in our neighborhood and set out to develop a business that guarantees your satisfaction. You deserve the best solutions, and we have the right team in place to provide them. From boiler repair to mini-split installation, our expert technicians do it all.

To schedule ac repair or replacement, reach out to us at (630) 406-9082. We look forward to adding you to our family of happy customers in Elgin, Batavia, and Saint Charles.
What Sets Us apart From Other HVAC Companies?

How Are We Different?

  • We have over 36 years of experience serving the St. Charles area.
  • We serve more than 25 towns in the Greater Chicago area.
  • Our team is NATE and EPA certified, and comply with industry codes and standards.
  • We do not subcontract our work. Your technician is a full-time employee of TDH Mechanical, handpicked by Tim himself.
  • We have a team of loyal professionals, some of who have been with us for many years. This allows them to cultivate long-term customer relationships.
  • We always provide top-notch, personalized service from start to finish. No matter the job's extent or complexity.
There is no problem too big or small 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 an air duct cleaning. All of our technicians carry a customer-first mindset, allowing you to benefit from unparalleled workmanship and our attention to detail. Our goal is the same as yours: to maintain you a truly comfortable home without unexpected interruptions from your heating and cooling system.
Allow our techs to repair your Water Heater in Elgin IL
Experienced HVAC Professionals in Saint Charles


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

Cities We Service

Click on a city below to see what your neighbors are saying about their recent experience with TDH Mechanical, Inc..
Sign up for our Air Conditioner maintenace plan in Batavia IL to ensure your home stays comfortable.
Do you like saving money? Would you like healthier, cleaner air? Then, you need to schedule an appointment for HVAC maintenance! Getting regular ac tune-ups in Saint Charles extends the life of your HVAC equipment and saves you money on your energy bills. For more information on our ac maintenance plans, contact us by form or phone!
Check out our Financing options in Saint Charles IL with FTL Finance.
Check out our Financing options in Saint Charles IL with Wells Fargo.
Trust our techs with your next heat pump repair in Saint Charles IL
See what makes TDH Mechanical, Inc. your number one choice for heat pump repair in Batavia IL.

Heat Pump Service in Saint Charles

Saint Charles and its temperamental climate means heat pumps need to be reliable and efficient.

When something falters, the heat can quickly get to you. This is where TDH Mechanical, Inc. comes to the rescue. Our team, boosting ample heat pump experience, ensures you're never left in the cold. We’re also skilled in using heat pumps to extend your preexisting HVAC footprint to garages, attics, and additions.

Rest assured, whether you need preventative maintenance or a brand-new system installed, we've got your heat pump needs covered. Warmth and comfort are just a call away. Dial to schedule heat pump services in Batavia and Elgin.

Schedule Service

A Commercial HVAC Company You Can Trust

In the fast-paced world of business, there's no room for HVAC hiccups. Keeping your customers and tenants happy means keeping them comfortable. You need AC units to run well and RTUs to flick on when needed. But you also need to consider long-term efficiency and costs. That’s the cost of doing business (or renting one).

At TDH Mechanical, Inc., we're equipped with the skills and expertise to handle the unique demands of commercial HVAC systems. Whether you run an office space, a retail store, or a large facility, we ensure your HVAC runs seamlessly, contributing positively to your business operations.

Commercial HVAC Service
To get an estimate on AC replacement in Saint Charles IL, call TDH Mechanical, Inc.!
Not sure if it's more cost effective to fix or replace your broken AC? Call us for a free quote.
Schedule your Heat Pump replacement in Elgin IL today.
Need a reliable Air Conditioning repair company? Call (630) 406-9082 today!
Looking for someone to help with a Heat Pump repair in Saint Charles IL? TDH Mechanical, Inc. has scheduling options that fit your availability
For the best Heat Pump replacement in Elgin IL, choose a BBB rated company.
For the best Heat Pump replacement in Elgin IL, choose a BBB rated company.
For your Water Heater repair in Batavia IL, trust a HomeAdvisor Approved contractor.
For your AC repair in Elgin IL, trust a HomeAdvisor Approved contractor.