How Long Does a Furnace Replacement Take?
Most furnace replacements take one day; venting, a chimney liner, gas line or duct work can add a second. Ours run $4,500–$9,500 installed. Call 612-429-3465.
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Replacing a 2000s builder furnace in Montrose costs $4,500–$9,500 installed, on a flat-rate quote after a Manual J. Returns in 2000s houses are often undersized, so we measure static pressure before we quote.
Montrose is replacing a generation of builder furnaces at once, and the easy mistake is a same-size swap that keeps the original return duct. Many 2000s houses here have returns too small for the blower, so a new furnace installed on them runs loud and hot and never reaches the efficiency on its label. We measure static pressure before quoting and add return capacity when the numbers call for it.
Houses with an 80% furnace vent through a metal flue shared with the water heater. Moving to a 96–98% furnace puts the furnace on PVC and can leave the water heater on a flue sized for two appliances, which has to be checked. Houses with an entry-level 90% furnace already have PVC, but the new furnace's venting tables decide whether that pipe diameter can stay. Because Xcel Energy is also the gas utility, a new furnace falls under Xcel's Heating Equipment Rebates, so ask whether a registered contractor is required. The mechanical permit is in the quote.
Updated October 27, 2026
By efficiency: 80% AFUE roughly $4,500–$6,000; 96–98% AFUE roughly $6,500–$9,500. See the furnace replacement cost guide.
Xcel handles every equipment rebate in town: furnace rebates on the gas side, heat pump and central AC rebates on the electric side. Ask us which rebates apply when we quote. Rebate programs change every year, so check the utility's current terms before you buy.
Our guides: Xcel and CenterPoint rebates, heat pump rebates.
At minimum: the furnace size from a Manual J, the AFUE rating, venting changes, any return-duct work, the mechanical permit and the warranty terms, as one flat-rate price in writing. In 2000s Montrose houses we also list the static pressure reading so you can see why return work is or isn't needed. Installs carry our 2-year labor warranty on top of the manufacturer's parts warranty.
Usually a second return, often upstairs, or a larger return trunk at the furnace. In many 2000s two-stories the only return is one hallway grille, and the blower can't pull enough air through it. We measure static pressure before and after the work, so you see the change in numbers instead of guessing by ear. The return work is itemized in your written quote, separate from the furnace itself.
Signs your furnace needs replacing
Most furnace replacements take one day; venting, a chimney liner, gas line or duct work can add a second. Ours run $4,500–$9,500 installed. Call 612-429-3465.
Read the guideA furnace pressure switch proves the inducer is venting exhaust before the gas can open. Why it trips in a Minnesota winter, what you can check, and the cost.
Read the guideFurnace quit in a cold snap because the drain line froze? How to thaw it safely, stop it refreezing, and our $79 trip charge, waived with the repair.
Read the guideHeat out? AC quit? Call or send a request.