TDH Mechanical, Heating and Cooling Contractors

TDH Mechanical has kept Chicago homes comfortable since 1988, building nearly four decades of service across the city and over 25 surrounding suburbs including Oak Park, Des Plaines, and Elmhurst. With a 4.8-star rating from 170 customer reviews, this locally owned contractor employs NATE-certified technicians who handle residential and light commercial heating and cooling systems. Their Chicago office operates Monday through Saturday with hours from 7 AM to 6 PM, matching the pace of Chicago's extreme seasonal temperatures.

This contractor distinguishes itself through specialized brand partnerships that unlock solutions other area companies cannot offer. As a Carrier dealer and Mitsubishi Electric certified installer, TDH Mechanical installs ductless mini-split systems in vintage brick homes where traditional ductwork would demand expensive renovations. Their Navien certification covers the full line of tankless water heaters and combi-boilers, including oil-to-gas conversions for homeowners leaving behind older heating systems. Their financing options and available tax credits help offset the cost of high-efficiency replacements.

Customer reviews routinely name specific technicians who handled memorable service scenarios. Tom V. needed his furnace and central air replaced before an out-of-state trip; Wally and Jacquie coordinated a Saturday installation that fit his tight timeline, and the final price came in below competitor bids. Mark D. received his Mitsubishi mini-split quote the same day from Bernie, while George spent two days installing the system in his vintage brick home, carefully protecting interior spaces throughout. For eight years, Todd B. has trusted Mark with maintenance across multiple units, knowing the technician always flags potential issues before they become expensive repairs.