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, with upfront pricing, and a real dispatcher 24 hours a day.
- Repair-first — we fix, not upsell
- Written quotes — part + labor + total
- 24-hour dispatch — (303) 568-5036
Open 24 hours.
Twelve services. One standard.
Diagnose honestly, repair properly, explain everything before we touch a wrench.
Heating Cooling Both seasons
Swamp cooler conversion
Our signature: retire the swamp cooler, get real central AC. Tied into the ductwork your furnace already uses — one system, real cooling, no more wet pads.
See conversion detailsHeating
Furnace Repair
No-heat diagnosis and repair for gas furnaces — igniters, blowers, boards, and everything between.
Furnace Installation
Right-sized furnace replacement with honest repair-vs-replace math first.
Cooling
Both seasons
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.
Colorado lives in two seasons. So do we.
Heating
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
Heating season runs Oct to Mar.
Cooling
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
Cooling season runs Apr to Sep.
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.
Not heating
Furnace runs but the house stays cold, or it won't fire up at all. Often a thermostat, ignition, or airflow issue.
Not cooling
AC blows warm or weak air on hot days. Refrigerant, electrical, capacitor, or compressor suspects.
Strange noise
Banging, screeching, rattling, or humming. Noises are symptoms, not diagnoses — they deserve a look.
Won't turn on
System dead at the thermostat. Power, control board, and safety-switch issues top the suspect list.
Blowing cold air
Furnace blows but air never warms. Heat exchanger, gas supply, and sensor problems all land on the list.
High energy bills
Bills climbing with no habit change? An aging system works twice as hard for the same comfort.
Leaking water
Water around indoor equipment needs attention — condensate lines, drain pans, and coils first.
Short cycling
On and off every few minutes. Wears equipment fast and always signals an underlying problem.
Seasonal pattern illustrative
Heating work clusters Oct–Mar, cooling work Apr–Sep. Simplified illustration — not measured company data.
Based in north Aurora (80011)
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.
We're here, our trucks are already in your neighborhood, and we know these systems the way only daily repetition teaches.
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.
How our pricing works
Every quote is written — part, labor, total — before work starts. The diagnostic fee is quoted up front and credited toward your repair. No "call for pricing" games.
- Diagnostic visit — quoted up front; credited toward repair
- Furnace tune-up — full checklist + written report
- AC tune-up — pre-summer check
- Swamp cooler conversion — written, itemized quote
The diagnostic fee is credited toward your repair. Approve the fix and it comes off the total. Decline it and you pay only the diagnostic — no pressure, no follow-up sales calls.
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
All zips 80010–80018. Same-day dispatch across 80011.
Centennial, CO
Zoned systems and established neighborhoods, served right.
Commerce City, CO
Repair-first pricing for a price-sensitive market.
Thornton, CO
End-of-life equipment triage for 70s–80s subdivisions.
Northglenn, CO
Ranch-home HVAC with fast response from Aurora.
Parker, CO
Fixing builder-grade shortcuts properly.
Littleton, CO
Experienced hands for the metro's oldest systems.
Englewood, CO
Furnace, AC, and heat pump service.
Where we work
Dispatched from 595 Nucla Way, Aurora, CO 80011 — Aurora and the north metro.
No heat or no cool right now? Call (303) 568-5036 — answered 24 hours a day.
Call nowNo heat? No cool? Let's get it sorted.
PeakLine Heating & Air Aurora — heating and air conditioning service across Aurora and the north metro, 24 hours a day.