Tradition HVAC ServicesTradition HVAC Services

High-Efficiency Gas Furnace Replacement

Choosing a condensing furnace rated between 95% and 98% AFUE makes practical sense when an existing unit exceeds 15 to 20 years of service, requires frequent burner repairs, or suffers a cracked heat exchanger. In…

Call (719) 441-0010 →(719) 441-0010
High-Efficiency Gas Furnace Replacement in Lakewood, CO
Quick answer
  • What is included: Complete on-site heating calculation, removal of the old unit, direct-vent PVC intake and exhaust line installation, gas connection testing, digital thermostat pairing, and high-altitude manifold pressure calibration.
  • Turnaround time: On-site system evaluations take 45 to 60 minutes, and most furnace installations are finished in a single 6- to 8-hour workday.
  • Estimated investment: Full high-efficiency gas furnace replacements range from $4,200 to $8,800 depending on stage design and venting needs, with baseline heating diagnostics starting at $300.
  • Old equipment removal: Complete removal, sheet metal recycling, and clean disposal of your old heating appliance are included with replacement.
  • How to book: Call (719) 441-0010 to schedule an honest on-site mechanical evaluation with zero sales pressure.

Choosing a condensing furnace rated between 95% and 98% AFUE makes practical sense when an existing unit exceeds 15 to 20 years of service, requires frequent burner repairs, or suffers a cracked heat exchanger. In established Lakewood neighborhoods such as Applewood, Eiber, and Morse Park, many older homes rely on 80% AFUE units that vent exhaust straight up through metal B-vent chimneys. Transitioning to a high-efficiency condensing system requires installing dedicated, non-metallic PVC venting through a side wall or roof deck to safely exhaust lower-temperature, acidic flue condensation. At Lakewood's 5,500-foot elevation near William F. Hayden Park on Green Mountain, thinner atmospheric air requires exact fuel-to-air manifold pressure adjustments so burners ignite reliably without generating carbon buildup or triggering safety pressure switches.

While a condensing system involves a larger upfront investment than standard-efficiency models, it delivers significant fuel savings during sustained sub-freezing weather across Bear Creek and Kendrick Lake. Two-stage gas valves and modulating blowers distribute gentle, continuous heat rather than abrupt blasts of hot air, correcting uneven room temperatures in split-level homes across Belmar, Lasley, and O'Kane Park. Our technicians focus on straightforward mechanical evaluations rather than corporate sales quotas, giving you clear options between component repairs and full system upgrades. Ballpark prices are provided upfront, and exact project totals are confirmed during a free on-site consultation.

What it costs

Standard 95% AFUE Single-Stage Gas Furnace Replacement$4,200 - $5,800
High-Efficiency 96% Two-Stage Gas Furnace Replacement$5,400 - $7,200
Ultra-High Efficiency 98% Modulating Variable-Speed Furnace$6,800 - $8,800
Direct-Vent PVC Flue & Combustion Air Line Retrofit$450 - $1,200
Baseline Mechanical Heating Diagnostic & Safety Evaluation$300 - $380

Every job gets a firm, written price after a free on-site visit.

Common questions

How does Lakewood's elevation affect high-efficiency gas furnace replacement?
Thinner air at Lakewood's 5,500-foot elevation provides less oxygen per cubic foot, requiring precise high-altitude gas orifice adjustments and manifold derating to prevent unburned fuel accumulation and pressure-switch lockout.
Do I need a city permit for a furnace replacement in Lakewood?
Yes, the City of Lakewood requires mechanical and electrical permits for all gas furnace replacements to verify safe combustion venting, gas line integrity, and proper electrical disconnects.
Can existing ductwork in older Lakewood homes support a high-efficiency furnace?
Most duct systems in neighborhoods like Eiber and Morse Park work well, though technicians measure static air pressure during the estimate to determine if minor sheet metal adjustments are needed for optimal airflow.
How long does a gas furnace replacement take in a Lakewood home?
A standard residential furnace replacement in Lakewood takes 6 to 8 hours from initial equipment teardown to final combustion analysis and thermostat programming.
Will a high-efficiency gas furnace lower heating bills in Lakewood?
Upgrading from an older 70% or 80% furnace to a 96% AFUE unit directs nearly all purchased natural gas into usable household heat, reducing monthly winter heating bills across Jefferson County.

Ready to get started?

Tell us about your high-efficiency gas furnace replacement job in Lakewood and we'll send a clear, written quote — usually the same day.