606 Cedar Street
Saint Charles, IL 60174
630 200-6201

Local Reviews

Rated 5.0 out of 5 stars based on 21 customer reviews

We’ll done

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Totally satisfied customer!

Rolando did an excellent job getting my humidifier and furnace in fine working condition again. He answered my question about humidifier settings with a clear explanation and explained what was going on with my humidifier and furnace and why they were weren’t working and what he did to make them work again. He was right on time for my scheduled appointment.

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Satisfaction!!!!!

We are very happy with your company and employees. Everyone has been attentive and punctual and we were happy with the service.

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Great Service, Awesome Price!

TDH is great. Looking forward to working with them for all our future HVAC needs.

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Boiler maintenance

Fast and efficient. Great job.

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Excellent service

Wojtek was very knowledgeable and thorough. He explained everything in detail and was great to work with.

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Furnace Investigation

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Awesome customer service!

Incredible customer service by Kris!

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Excellent response

Had no heat yesterday evening till this morning. Texted with TDH Mechanical first thing in the morning and within 2 hours Kris from TDH is at my door. He helped diagnose the issue and recommended to go with a new furnace as mine is 25 years old now. He provided me the different options and estimates for them and let me make the decision. He was not selling me anything, but provided me with facts and why the heat would stop in between.

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Best service!

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Excellent Service

Excellent service. Nice guy and very quick and efficient. He was in and out in 15 minutes with the heat working again. 10/10. Cory is the owner and I am the tenant

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Very efficient

He came in, same day, and have a quote for me to evaluate.

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Great attitude and very efficient

Well versed and experienced

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Always great service

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Replacement of furnace blower motor

Ken was efficient, thorough, and quickly had my furnace running again

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Job Locations

Mark K.

Mark K. Job Checkin

Installation of new Trane 96% furnace. New 4 ton Trane condenser and coil.


Mark K.

Mark K. Job Checkin


Kris S.

Kris S. Job Checkin

Sc water leak

Sc water leak

Jose A.

Jose A. Job Checkin

Today installed new Trane 60.000 BTU 96% furnace and new aprilaire 600 M humidifier

Today installed new Trane 60.000 BTU 96% furnace and new aprilaire 600 M humidifier

Ken H.

Ken H. Job Checkin

Estimate for Trane furnace


Wally W.

Wally W. Job Checkin

TDH install new Mitsubishi heat pump with air handler heat pump, ducted unit and wall mount unit.

TDH install new Mitsubishi heat pump with air handler heat pump, ducted unit and wall mount unit.

Kris S.

Kris S. Job Checkin

New water Heater

New water Heater

Rolando C.

Rolando C. Job Checkin

Humidifier leaking water


Wally W.

Wally W. Job Checkin

Estimate for new hot water boiler Navien

Estimate for new hot water boiler Navien

Wally W.

Wally W. Job Checkin

Munch supply buy material


Rolando C.

Rolando C. Job Checkin

Water heater not heating water.


Wally W.

Wally W. Job Checkin

Estimate for new furnace

Estimate for new furnace

Wally W.

Wally W. Job Checkin

Estimate for new Navien combo unit, Trane air handler and Ac unit.

Estimate for new Navien combo unit, Trane air handler and Ac unit.

Ken H.

Ken H. Job Checkin

Clean hot water boiler


Alfredo E.

Alfredo E. Job Checkin

Furnace install