Furnace Installation & Replacement in Lakewood

Green Mountain Estates began in 1964 and grew through the following decades, and about 48% of Lakewood's housing was built from 1970 to 1999. Split-levels and two-stories on the slopes often have long duct runs to the upper rooms and too little return air. Furnaces from 2000s replacements are now 20 years old. When we replace one, we check static pressure and returns so the new furnace isn't fighting the ductwork.

Solterra's newer homes mostly have condensing furnaces on PVC, and replacements there are uncommon. When one is needed, we confirm the vent size and length fit the new model and replace the condensate trap and line.

At about 5,656 feet, furnaces lose about 23% of their sea-level rating. A 60,000 Btu/h input furnace becomes about 46,000 after high-altitude setup, which is often enough for an Eiber ranch. We set orifices and gas pressure to the manufacturer's high-altitude table and verify combustion.

Under the NOx limits that began January 1, 2026, the only new gas furnaces that can be sold in Colorado are ultra-low NOx models (14 ng/J or less) and those certified to the newest ENERGY STAR spec, which moved to 97% AFUE on July 31, 2026. We name the compliance path on every Lakewood quote. Our NOx guide explains the background.

Lakewood's Planning and Public Works Department issues the mechanical permit for a furnace replacement from Civic Center North at 470 S. Allison Parkway, and we file it and schedule the inspection. Xcel Energy supplies gas and electricity. A rebate tracker reports Xcel ended gas furnace rebates on January 1, 2026, so we check before quoting any.

If the AC is aging too, compare a cold-climate heat pump or dual fuel. The state's 2026 heat pump tax credit is worth $1,000 for air-source systems, Power Ahead Colorado adds $1,500 for cold-climate units, and Xcel's heat pump rebates changed October 1, 2026. Don't plan on the federal 25C credit; it ended for systems placed in service after 2025. Our heat pump vs. furnace guide covers running costs.