Furnace Repair · Aurora, CO

Furnace Repair in Aurora, CO

No heat, cold air, won't start — diagnosed the same day in north Aurora. Diagnostic visit [TBD] · credited toward your repair. Written price before we touch a wrench.

What's included

One visit. Full diagnosis. Your decision.

A furnace repair visit isn't "a guy glances at it and quotes a new unit." Here's exactly what happens:

  • Full symptom interview — when it started, what changed, what it sounds like. Half of diagnosis is listening.
  • Sequence-of-operation test — thermostat call, inducer, igniter, gas valve, flame sense, blower. We find where the chain breaks.
  • Electrical & gas checks — voltage, amperage, gas pressure, and safeties (limit, rollout, pressure switch).
  • Heat exchanger inspection — visual and CO check on older units. A cracked exchanger is a red-tag situation, not a repair.
  • Written repair price — part, labor, and total, before anything happens. The diagnostic fee comes off the repair total.
  • Old parts back — want the failed igniter in your hand as proof? It's yours. We encourage it.
PeakLine technician testing a furnace control board with a multimeter during a no-heat diagnosis

NO-HEAT DIAGNOSIS IN PROGRESS · 80011 · OCT 2026

Symptom diagnosis

What your furnace is telling you

Describe it in your own words when you call — but if you're the type who wants to know first, here's the honest version:

Runs, but blows cold air

The blower works but there's no flame. Usually an igniter, flame sensor, or gas valve issue — the three most common October failures after a summer of sitting idle. Almost always a same-visit fix.

Won't turn on at all

Check the thermostat batteries and the breaker first (we won't charge you for that). After that: control board, transformer, or a tripped safety. If the house is getting cold, call — don't wait it out.

Starts, then shuts off

Short-cycling. The furnace lights and quits — classic flame-sensor or airflow problem. A dirty filter alone can cause this, which is the cheapest fix in all of HVAC.

Making a new noise

Banging on startup, rattling, squealing, or a howl from the vents. Some sounds are harmless, some mean shut it off now. Our noise diagnosis guide sorts them out.

Smell gas or rotten eggs? Don't call us first — leave the house and call Xcel Energy or 911 from outside. Then call us once it's cleared.

Transparent pricing

What furnace repair actually costs here

Nobody else in Aurora publishes this. We do — because "is there a fee for it" deserves a number, not a dodge. These are ranges, finalized in writing before you approve.

ServiceTypical rangeNotes
Diagnostic visit[TBD]Quoted before dispatch; credited toward approved repair
Igniter / flame sensor replacement[TBD]Most common October repair; usually same visit
Blower motor / capacitor[TBD]Depends on motor type (PSC vs. ECM)
Control board replacement[TBD]Board cost varies by model; we'll show you the part price
Gas valve replacement[TBD]Includes combustion verification after install
Heat exchanger (cracked)[TBD]Safety red-tag; usually triggers the replace-vs-repair talk

Full breakdown with more line items: the Aurora HVAC price guide →

Every repair price is given in writing — part, labor, total — before work starts. If a company won't do that, that's your answer about the company.

How it works

Book → diagnose → approve → fixed

Book

Call (303) 568-5036 or request online below. Describe the symptom however you like — "it won't turn on" is a complete work order.

Diagnose

Tech runs the full sequence test and finds the actual failed component. You get the fault explained in plain English.

Approve

Written price: part + labor + total. You approve, decline, or ask for the cheaper option. The diagnostic is credited toward the repair.

Fixed

Most repairs finish the same visit. The furnace is test-fired, safeties verified, and you get a written guarantee.

PeakLine senior technician at work on a residential furnace
Senior technician
HEATING SPECIALIST · NORTH AURORA DISPATCH

Diagnoses furnaces all winter, every winter. He'll tell you when a $40 part fixes it — and he'll tell you when it won't.

Furnace repair FAQs

Straight answers before you call

What is your service fee to come out and look at my furnace?

It's published at the top of this page — no "call for pricing" games. And if you approve the repair, the diagnostic fee comes off the total. Ask any company that won't quote their fee up front why they won't.

My furnace is blowing cold air. What could it be?

Blower running with no heat usually means the ignition sequence failed: igniter, flame sensor, or gas valve are the big three. These are the most common October failures in Aurora — furnaces sit idle all summer, then the first cold night exposes the weak part. Almost always fixed in one visit.

My furnace won't turn on at all. Is it an emergency?

Check thermostat batteries and the breaker first. If the house is holding temperature, it can wait for the next window — but in an October cold snap, indoor temps fall fast in older, draftier homes. When in doubt, call (303) 568-5036; we'll tell you honestly whether it can wait.

How long does a furnace repair take?

Most take 1–2 hours, finished the same visit from truck stock. If a part has to be ordered, we tell you that before you approve anything — and we'll talk through interim heat options so you're not freezing while it ships.

Will you try to sell me a new furnace instead of fixing it?

No. We run the same math with you that we'd run for our own house: under ~15 years old, repair wins; past that with a big-ticket failure, we show you both numbers. See the repair-vs-replace guide — and notice it starts with repair.

Book furnace repair

Request your repair visit

No heat? Don't wait for it to get worse. Call (303) 568-5036 or request online.

Request a visit

Pick a time window and we'll confirm by text.

OWNER: connect to booking backend

Request received. We'll text you shortly to confirm. No heat right now? Call (303) 568-5036 immediately.

Related: Heating services · Furnace noise guide · Aurora HVAC pricing

Call (303) 568-5036 Book a visit