Furnace Replacement & Estimates
Furnace replacement in Brighton starts with an honest estimate: what size furnace your home actually needs at our 4,987-foot elevation, which models meet Colorado's 2026 ultra-low NOx rule, and what venting or permit work the job requires. If your furnace is 15 to 20 years old, needs an expensive repair or keeps breaking down, we lay out your options with prices so you can decide without pressure.
Service overview
Furnace Replacement & Estimates in Brighton is a home heating service that sizes, prices and installs a new furnace when the current one is no longer worth repairing. The estimate comes first. We look at your current furnace, ductwork, venting and electrical, measure the home for a heat load calculation, and check what the 2026 Colorado rules allow. Then we give you options with clear prices, so you can compare a new gas furnace, a higher-efficiency model, or a dual fuel setup with a heat pump.
Brighton homeowners usually start thinking about replacement for one of three reasons: the furnace is 15 to 20 years old, a recent repair quote was large, or the furnace keeps breaking down every winter. A cracked heat exchanger found during a tune-up is another common trigger. Our new furnace installation work in Brighton also covers the details that make the difference later: high-altitude setup, correct venting, a condensate drain that won't freeze, and the permit inspection.
Practical benefits
Replacing a furnace in Brighton is a bigger decision in 2026 than it was a few years ago. New equipment rules, the end of the federal tax credit and high-altitude sizing all affect what you should buy. A good estimate makes those decisions clear before you spend anything.
Most furnaces are oversized because they were sized by square footage. We size from a heat load calculation that accounts for insulation, windows, ceiling height and Brighton's elevation, which reduces a gas furnace's effective capacity. The right size means longer, quieter cycles and more even temperatures from room to room.
Since January 1, 2026, new gas furnaces installed in Colorado must meet an ultra-low NOx limit of 14 nanograms per joule. We quote models that meet the rule, explain how they differ from what you have now, and avoid leaving you with equipment that cannot legally be installed.
Furnace replacement in Brighton requires a City of Brighton mechanical permit and inspection. The permit process covers gas piping, venting and electrical connections, and it triggers Colorado's requirement for working carbon monoxide alarms near sleeping rooms. We include that work in the plan so nothing is missed.
Switching from an 80% furnace to a condensing model usually means new PVC venting, a condensate drain and sometimes a chimney liner for the water heater left behind. We price these in the estimate from the start, so the number you see is the number for the whole job.
How service works
A furnace replacement in Brighton follows five steps from the first call to the final inspection. Each step has a clear purpose, and you know what is happening and when. Here is how the process works and roughly how long each part takes.
We visit your home, look at the current furnace, ductwork, venting, gas line and electrical, and talk about what you want to fix: cost, comfort, noise or reliability. We measure rooms and windows for a heat load calculation. The visit usually takes about an hour.
Tools and methods
Runs Manual J style heat load calculations from room measurements, insulation and window data, so the new furnace is sized for the home rather than copied from the old one.
Measures oxygen, carbon monoxide and flue temperature during startup to confirm the new furnace burns cleanly at Brighton's elevation.
Sets and verifies gas pressure at the furnace's gas valve and checks static pressure in the ductwork to confirm airflow.
Tests for CO at the furnace, venting and supply registers after installation, so the system is safe before we leave.
Measure supply and return air temperatures to confirm the new furnace's temperature rise falls within the range on its rating plate.
We calculate the home's heating load from room sizes, insulation, windows and air leakage, following ACCA Manual J methods. The result, adjusted for altitude, tells us the furnace size your home needs, which is often smaller than the furnace being replaced.
We follow the furnace manufacturer's instructions for installation above set elevations, which often call for a high-altitude pressure switch or orifice kit and specific gas input adjustments. This prevents lockouts and incomplete combustion.
We route PVC intake and exhaust pipes within the manufacturer's maximum lengths and clearances, plan the condensate drain so it won't freeze, and check whether a water heater left behind needs a chimney liner.
After installation, we measure gas pressure, temperature rise and combustion values and compare them to the manufacturer's specifications. The furnace is adjusted until it runs within range, then tested for carbon monoxide.
Where this service fits
We document the crack, explain the safety risk, and provide a replacement estimate. The estimate covers the right-sized compliant furnace, venting changes and permit, and we discuss whether the old furnace should stay off until the new one is installed. You make the decision with real numbers and a safe plan, instead of running a damaged furnace through another winter.
We show you the repair price next to a replacement estimate, along with the furnace's age, expected remaining life and efficiency. If the furnace is near the end of its service life, replacement usually costs less over the next several winters. You choose the option that fits your budget, with the long-term cost of each option clear upfront.
We compare an ultra-low NOx gas furnace with a new air conditioner against a cold-climate heat pump paired with a gas furnace for backup. We explain how each handles Brighton winters and point you to Xcel Energy's current rebates. The new system covers heating and cooling, and you know which rebates apply before committing.
Local execution
Furnace replacement in Brighton has three local factors that change the job compared to a generic install guide. First is altitude. At roughly 4,987 feet, there is less oxygen for combustion, so gas furnaces deliver less than their sea-level rating and often need a high-altitude conversion kit specified by the manufacturer. Sizing has to account for that. Second is Colorado's ultra-low NOx rule, which since January 1, 2026 requires new gas furnaces to meet a 14 ng/J emissions limit. Some inventory that was in the state before that date could still be sold, but new compliant equipment is now the standard path. Third is the housing mix. Older homes near downtown often have 80% furnaces venting into a masonry chimney shared with the water heater, while newer subdivisions typically already have condensing furnaces with PVC venting. A new furnace replacement estimate in Brighton has to plan for whichever setup your home has. All replacements need a City of Brighton mechanical permit and inspection, and the city requires the contractor to hold the matching license type.
Older homes here are the most likely to have 80% furnaces in shared chimneys, so replacement estimates often include new PVC venting and a liner for the water heater.
City permit records show furnace replacements in this established subdivision, where many original furnaces are reaching the 15 to 20 year range.
Newer homes here usually have condensing furnaces already, so replacements are often simpler swaps that reuse existing PVC venting if it meets the new furnace's requirements.
Recent construction means most furnaces here are still within their service life, so estimates are more often about a failed major part than an aging system.
Manufacturers require derating or high-altitude kits at this elevation, so the furnace's sea-level rating overstates what it delivers. Sizing has to account for this or the home may end up undersized or oversized.
Since January 1, 2026, new gas furnaces must meet a 14 ng/J NOx limit. This narrows model choices and makes condensing furnaces the most common replacement path for many Brighton homes.
Moving the furnace to PVC venting can leave a gas water heater alone in a chimney sized for two appliances. That chimney often needs a liner to vent safely, which belongs in the estimate.
Problems we solve
Most furnace replacement estimates in Brighton start with a specific problem, not a desire for a new appliance. These are the situations we see most, and how a well-planned replacement solves each one for good.
We confirm the crack, show you what we found, and provide a replacement estimate. Until the furnace is replaced, we explain whether it should be shut down. The new furnace is sized correctly, set up for altitude and tested for carbon monoxide after installation. A cracked heat exchanger can allow combustion gases into the airstream, which is a carbon monoxide risk that cannot be repaired safely on most furnaces.
We review the repair history and the furnace's age, then compare the cost of continued repairs to replacement. If replacement makes sense, the estimate includes the right-sized furnace, venting and permit so the new system starts the season reliably. Repeated repairs on an older furnace add up, and each breakdown during a cold snap leaves the home without heat until the next part arrives.
A heat load calculation shows the right furnace size, and a duct check finds airflow problems. A correctly sized two-stage furnace paired with duct corrections usually brings rooms much closer to the thermostat setting. Oversized furnaces short cycle, wear parts faster, and leave rooms uneven, while undersized ones run constantly in cold weather without keeping up.
We explain which furnaces meet the ultra-low NOx rule, what venting changes your home needs, and whether a dual fuel heat pump option makes sense. You see each option with its price before choosing. Buying the wrong type of equipment or skipping venting changes can delay installation, fail inspection, or leave a water heater venting unsafely.
A practical standard for every visit.
Experience in the details
Furnace replacement in Brighton involves rules and conditions that sea-level buyer's guides miss. Colorado's ultra-low NOx standard changed which gas furnaces can be installed starting in 2026. Brighton's elevation of roughly 4,987 feet reduces the effective output of a gas furnace and often requires a manufacturer-specified high-altitude kit. City permits, carbon monoxide alarm rules and venting changes for condensing equipment all need to be planned before the old furnace comes out. Our estimates are built around all of these.
Where we work
No. Colorado's HB23-1161 applies only to new gas furnaces sold or installed on or after January 1, 2026. Your existing furnace can be repaired and used for as long as it runs safely. The rule matters when you do replace it, because the new gas furnace must meet the ultra-low NOx limit of 14 nanograms per joule, which narrows the available models and can raise equipment cost compared to older 80% units.
No, the federal 25C energy efficient home improvement credit ended for equipment placed in service after December 31, 2025, so a furnace installed in 2026 does not qualify. Xcel Energy, which supplies natural gas in Brighton, has shifted much of its heating incentive toward heat pumps. Check Xcel's current rebate page before you buy, since programs and amounts change during the year.
Yes, replacing a furnace in Brighton requires a mechanical permit from the City of Brighton, and the work is inspected afterward. The city requires contractors doing mechanical work to hold the appropriate city contractor license. A permit also brings Colorado's carbon monoxide alarm rule into play, which requires working CO alarms within 15 feet of the entrance to each sleeping room.
Most straightforward furnace replacements take one full day, from removing the old unit to testing the new one. Jobs that switch from an 80% furnace to a condensing model can take longer because of new PVC venting, a condensate drain and possible chimney work for the water heater. The city inspection is scheduled separately after installation, usually within a few days.
Keep exploring
Your next step is waiting
If your furnace is past 15 years old, needs a major repair or keeps breaking down, an estimate tells you exactly what replacement involves. Call (720) 715-9099 to set up an in-home visit for furnace replacement in Brighton.
Start with the basics
Call us at (720) 715-9099 with your furnace problem and your address. Tell us what you are seeing, whether that is no heat, short cycling, a blinking light or a noise you have not heard before, and we will set up a visit. You can also send the form on this page with a short description and the best time to reach you.
CALL(720) 715-9099
SERVICE AREABrighton, Colorado
