We’ve been the trusted choice for Chicago area HVAC services for nearly 30 years.

We are a full-service boiler contractor for presale design to support and service after sale.  We install several 80% and 95% AFUE boilers, both hot water and steam. Brands we sell, and service are Dunkirk, Weil McClain, Pennco, Navien, Peerless, Triangle tube and Lochinvar.  

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At TDH Mechanical we offer 100% free install estimates! Call us or complete our quote form.