Furnace Repair in Denver

The city built more than 16,000 single-family homes in the 1940s alone, many of them modest Minimal Traditional houses in neighborhoods such as Harvey Park, Athmar Park, Westwood, North Park Hill, and Montclair. In these homes the furnace is usually in a small basement or utility room and has been replaced at least once. Common failures are worn igniters and flame sensors, inducer motors, blower capacitors, and limit trips caused by restrictive original returns.

Nearly a third of the city's housing has been built since 2000, including large areas like the former Stapleton airport site. Those homes have condensing furnaces that are reaching the age where control boards, inducer motors, and condensate traps start to fail. A clogged condensate trap or drain is one of the most common reasons a newer furnace shuts down with a pressure switch error.

At 5,280 feet, furnaces here must be set up for altitude. Manufacturers call for derating gas input about 4 percent per 1,000 feet, roughly 21 percent here, and a high-altitude pressure switch above 4,000 feet. We confirm gas pressure and orifice sizing when diagnosing overheating or lockouts, and every furnace call includes a carbon monoxide and combustion safety test.

We read control board fault codes, measure temperature rise and static pressure, and inspect the heat exchanger, burners, and venting. You get an upfront flat-rate price before work begins, and the diagnostic is free when you go ahead with the repair. Emergency service is available 24/7 without overtime fees, and our stocked trucks cover Trane, Lennox, Carrier, Goodman, Bryant, Rheem, and other major brands.

Single-part failures on a sound furnace are worth repairing. A cracked heat exchanger, a furnace past 20 years with repeated failures, or an old conversion that never heated the house well are the cases where replacement deserves a look. In older homes, replacement is also the moment to fix return air and duct problems that a new furnace alone will not solve.

Denver's Community Planning and Development department administers the city's building codes and permits. Xcel Energy provides gas and electricity in the city. Xcel's furnace rebate applies to 95 percent AFUE or higher units replacing a non-condensing furnace, installed by a participating contractor. If you are considering a heat pump instead of, or alongside, a new furnace, Denver has run its own Climate Action Rebates for heat pumps that could be combined with Xcel incentives, so check what is currently open before deciding.