When your furnace quits at 2 AM, you need the right crew.
PeakLine Heating & Air Aurora repairs, tunes, and replaces heating and cooling systems across Aurora and the north metro — repair-first diagnosis, published prices, and a real dispatcher 24 hours a day.
Twelve services. One standard.
Diagnose honestly, repair properly, explain everything before we touch a wrench. Ember = heating · Blue = cooling · Teal = both
Furnace Repair
No-heat diagnosis and repair for gas furnaces — igniters, blowers, boards, and everything between.
LEARN MORE →Furnace Installation
Right-sized furnace replacement with honest repair-vs-replace math first.
LEARN MORE →Swamp Cooler Conversion
Our signature: retire the swamp cooler, get real central AC.
LEARN MORE →Colorado lives in two seasons. So do we.
Winter in Aurora doesn't negotiate.
When temperatures drop into the teens, your furnace is the most important machine in your house. We repair, tune, and replace gas furnaces — the forced-air systems that heat the vast majority of Aurora homes.
- Furnace repair & diagnostics
- Pre-winter tune-ups & safety checks
- Full furnace replacement, sized right
- Heat pumps for efficient shoulder-season heat
Summer should feel like summer — indoors.
Whether your AC quit mid-July or your swamp cooler never really kept up, we bring real cooling to Aurora homes — repairs, new installs, and our signature swamp cooler conversions.
- AC repair & diagnostics
- Central AC installation
- Swamp cooler to AC conversion
- Ductless mini-splits for hard-to-cool rooms
What's going wrong?
Find your symptom. These are the patterns we see most in Aurora homes — the actual cause always needs a technician's eyes on the system.
Furnace runs but the house stays cold, or it won't fire up at all. Often a thermostat, ignition, or airflow issue.
AC blows warm or weak air on hot days. Refrigerant, electrical, capacitor, or compressor suspects.
Banging, screeching, rattling, or humming. Noises are symptoms, not diagnoses — they deserve a look.
System dead at the thermostat. Power, control board, and safety-switch issues top the suspect list.
Furnace blows but air never warms. Heat exchanger, gas supply, and sensor problems all land on the list.
Bills climbing with no habit change? An aging system works twice as hard for the same comfort.
Water around indoor equipment needs attention — condensate lines, drain pans, and coils first.
On and off every few minutes. Wears equipment fast and always signals an underlying problem.
When Aurora calls PeakLine
Typical monthly service demand across the north metro — heating work in ember, cooling work in blue.
Why north Aurora is our beachhead
We're based in the 80011 — north Aurora, where ranch homes went up in the 1950s–70s and much of the original heating equipment is still doing its best. Forced-air gas furnaces are the standard; rooftop swamp coolers are everywhere.
Here's what the big shops won't tell you: some of them don't serve north Aurora at all — their published service zips skip the 80011 entirely. We're here, our trucks are already in your neighborhood, and we know these systems the way only daily repetition teaches.
Morris Heights, Del Mar, the streets around Chambers and Colfax — solid homes with mechanical systems sized for a milder era. That's our call.
Aurora, CO — home base
Aurora, CO · Oct 2026
Winter is coming. Be ready.
A Colorado furnace doesn't get sick days. Our pre-winter tune-ups catch the cracked ignitors, dirty flame sensors, and tired blower motors before they become midnight emergencies — and when a furnace is truly done, we'll tell you straight and size the replacement for your actual home.
Summer without the sweat
Half of north Aurora still tries to beat July with a swamp cooler — a box of wet pads that gives up right when you need it most. Our signature move: convert those homes to real central air conditioning, tied into the ductwork your furnace already uses.
North Aurora, CO · Oct 2026
From your call to fixed
Book
Call (303) 568-5036 or request online. Describe the symptom in your own words — "it won't turn on" is a complete work order.
Diagnose
A technician inspects the system, finds the actual failed part, and explains it in plain English. You see what we see.
Approve
Written price — part, labor, total — before any work begins. You approve, decline, or ask about options. No pressure either way.
Fixed
Most repairs finish the same visit. The system is test-run, safeties verified, and the work area left clean.
The price is on the page. Not in a salesman's head.
Every service page shows typical ranges. Every quote is written — part, labor, total — before work starts. The diagnostic fee is published, quoted up front, and credited toward your repair.
| Service | Typical range | Notes |
|---|---|---|
| Diagnostic visit | [TBD] | Quoted up front; credited toward repair |
| Furnace tune-up | [TBD] | Full checklist + written report |
| AC tune-up | [TBD] | Pre-summer check |
| Swamp cooler conversion | [TBD] | Written, itemized quote |
Guarantees, not slogans
No-pressure promise
If you decline a recommended repair, that's the end of it. You'll never get a follow-up sales call, a "limited-time" scare tactic, or a tech who won't leave without a signature.
Written prices first
Every price we quote is written down — part, labor, total — before we touch a wrench. If the number changes mid-job, the work stops until you re-approve.
We show our work
Failed parts go in your hand, not our truck. We'll photograph what we found and walk you through it, so you're buying a diagnosis — not a story.
Frequently asked questions
What areas does PeakLine serve?
We're based in Aurora's 80011 and serve all Aurora zips (80010–80018) plus Centennial, Commerce City, Thornton, Northglenn, Parker, Littleton, and Englewood.
Do you really answer 24 hours a day?
Yes — heating and cooling emergencies, around the clock. Call (303) 568-5036 any time and you'll reach a real dispatcher, not a voicemail maze.
How much does a service visit cost?
The diagnostic fee is published on every service page — quoted up front, and credited toward your repair if you approve it. See our pricing page for ranges.
Will your technician try to sell me a new system?
No. We're repair-first: under ~15 years old, repair usually wins, and we'll show you both numbers openly. Our no-pressure promise is in writing.
What is a swamp cooler conversion?
Our signature service: we remove your rooftop evaporative cooler and install real central air conditioning, usually tied into the ductwork your furnace already uses.
Do you offer tune-ups and maintenance?
Yes — pre-winter furnace tune-ups and pre-summer AC tune-ups, scheduled around your day, with a written 90-day no-breakdown guarantee on furnace tune-ups.
How fast can you get to me?
Same-day in most cases across 80011 where we're based, and same-week everywhere else we serve. Emergency calls jump the line.
Do you guarantee your work?
In writing: written prices before work starts, old parts back in your hand, and no-pressure service. If we recommend it, we stand behind it.
Aurora is home. The north metro is our route.
Dispatched from 595 Nucla Way, Aurora, CO 80011 — one crew, one phone number, real local dispatch.
Aurora, CO
Home base — all zips 80010–80018. Same-day dispatch across 80011.
HOME BASE →Centennial, CO
Zoned systems and established neighborhoods, served right.
CENTENNIAL →Commerce City, CO
Repair-first pricing for a price-sensitive market.
COMMERCE CITY →Thornton, CO
End-of-life equipment triage for 70s–80s subdivisions.
THORNTON →Northglenn, CO
Ranch-home HVAC with fast response from Aurora.
NORTHGLENN →Parker, CO
Fixing builder-grade shortcuts properly.
PARKER →Littleton, CO
Experienced hands for the metro's oldest systems.
LITTLETON →Englewood, CO
Furnace, AC, and heat pump service.
ENGLEWOOD →Find PeakLine Heating & Air Aurora
No Heat? No Cool? Let's Get It Sorted.
PeakLine Heating & Air Aurora — heating and air conditioning service across Aurora and the north-metro suburbs, 24 hours a day.
(303) 568-5036595 Nucla Way, Aurora, CO 80011, USA • 24 Hours