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Furnace Replacement in Brighton, CO
No heat on a January night in Brighton is an emergency. This guide covers what a new furnace actually costs here in 2026, when repair still makes sense, and what to expect from the licensed local installers we connect you with.
Updated October 2026 · Written from first-hand field experience in the north Denver metro · Prices verified against 2026 Denver-metro quotes
Get a straight answer on your furnace
Talk to a licensed local installer in Brighton. Free second opinions on replacement quotes — no pressure, no obligation.
Typical response time: under 15 minutes, 7am–7pm daily.
Is it the furnace, or something simpler?
Before you price a replacement, rule out the cheap fixes. In our experience these cause most "furnace trouble" calls in Brighton:
- Dead thermostat batteries or a tripped breaker — check these first, seriously.
- Clogged filter choking airflow — a $15 filter fixes the "runs but barely heats" complaint more often than people expect.
- Failed ignitor or flame sensor — a $200–$400 repair, not a $5,000 replacement.
Call now, don't wait: smell of gas, carbon monoxide alarm, or water pooling under the furnace. Those are same-day problems.
Repair or replace? The honest fork
Repair it
Furnace is under 12 years old, the repair is under ~$800, and your heating bills haven't crept up. A good tech gets you 3–5 more years.
Replace it
15+ years old, second major repair in two years, cracked heat exchanger, or rooms that never get warm. At that point you're paying for heat you don't get.
Rule of thumb we stand behind: if the repair costs more than about a third of a new system and the furnace is past 12 years, replacement usually wins on math alone.
What furnace replacement costs in Brighton (2026)
Brighton's housing is two different markets for a furnace quote: the newer subdivisions east and south go in clean, while the older farmhouses near downtown often need venting updates, electrical work, or duct repairs that move the price.
What moves you up or down inside that range:
- Efficiency rating — 80% AFUE vs 96%+ AFUE is the biggest price jump — and the biggest gas-bill difference.
- Sizing — Most Denver-metro homes land between 60k–100k BTU; oversizing wastes money every month.
- Ductwork condition — Leaky or undersized ducts can add $1,000–$3,000 if they need work.
- Venting and permits — High-efficiency units need PVC venting; permit and inspection are included in reputable quotes.
In Brighton's housing stock you see a split. In-town homes from the 1950s–70s often still run oversized 80% furnaces on original galvanized ductwork, while the 2000s subdivisions on the edges are hitting their first replacement cycle with builder-grade units that were sized by square footage alone. Across both, the failures that strand people are usually ignitors and inducer motors first — not the furnace itself. If a quote for an older Brighton home doesn't mention looking at the ductwork and venting, it's incomplete.
What happens when you call
- We answer and listen. You tell us the symptoms, the equipment's age, and your address. We confirm a licensed installer serves Brighton.
- A licensed local tech arrives. They diagnose, give you repair and replacement options in writing, and answer questions on the spot.
- You contract directly with the installer. The estimate, the work, and the warranty are between you and the licensed company doing the work — not with this guide.
- The installer warranties the work. Equipment warranty from the manufacturer, labor warranty from the installer, both in writing.
How this site works: Mile High HVAC Guide is an independent publisher. We don't install HVAC equipment. When you request help, we connect you with a licensed local contractor and may receive a referral fee from them. It never changes what you pay.
Questions Brighton homeowners actually ask
How long does a furnace replacement take?
Most straightforward swaps are one day — crew arrives in the morning, you're heating by evening. If ductwork or venting needs changes, plan for two.
What size furnace does my house need?
It depends on square footage, insulation, and windows — not on what was there before. A proper installer runs a Manual J load calculation. "Same size as the old one" without measuring is a red flag.
Do I need a permit for this in Brighton?
Yes — the City of Brighton requires a mechanical permit and inspection for furnace and AC replacements. Any installer who suggests skipping it is one to avoid.
Our Brighton home was built in the 1970s — does that change the quote?
Often. Older homes here commonly need ductwork repairs, venting updates, or electrical work alongside the equipment — that's the main reason quotes vary. A thorough in-home estimate catches it; a phone quote won't.
Get a straight answer on your furnace
Talk to a licensed local installer in Brighton. Free second opinions on replacement quotes — no pressure, no obligation.
Typical response time: under 15 minutes, 7am–7pm daily.