HVAC Repair Lombard IL | Call K & M Heating

Key signs include a yellow or flickering burner flame (it should be blue), soot or rust around the furnace, excessive moisture on windows, and a persistent, unusual smell. Most importantly, if your carbon monoxide detector alarms, leave your home immediately and call 911, then contact us for a 24/7 emergency inspection. As a local contractor since 1973, we prioritize safety checks during our maintenance visits to help prevent these risks common in older DuPage County homes.

We recommend professional maintenance for your heating system in the fall and your air conditioning system in the spring. This seasonal timing helps catch minor issues before they become major problems, especially before our cold Illinois winters when furnace failures are most disruptive. Our maintenance service includes cleaning, inspection, and calibration to improve efficiency, extend system life, and maintain manufacturer warranties.

A full replacement is a significant project we've handled for Lombard residents since 1973. It involves a detailed home assessment for proper duct sizing and load calculation, removal of the old system, professional installation of your new energy-efficient furnace and/or AC unit, and thorough testing. We also handle necessary permits and explain available rebates. The goal is a seamless installation that provides reliable comfort and improved efficiency for years to come.