24/7 Emergency Heating & AC ★★★★★

Comfortable home, no waiting,
no surprise bills.

Fast, upfront-priced HVAC repair, tune-ups, and installs across the Denver metro — same-day service and 24/7 emergency help when the heat (or AC) quits.

Get a Free Quote → View Our Services →
24/7 Emergency Service Upfront Flat Quotes NATE-Certified Techs

AC out in a heatwave? Furnace dead in a cold snap?

You call around, get put on a waitlist, then wait days in a house that's too hot or too cold. The tech finally shows, and the "quick fix" quote is triple what you expected. You deserve fast help and a price you can trust before anyone starts turning wrenches.

→

No Heat or No Cool

Every hour without service, the discomfort compounds.

Days on a Waitlist

Stuck too hot or too cold while you wait for a callback.

Quotes That Triple

The "quick fix" balloons once the tech is already there.

The Upsell Pitch

A repair turns into a pressured $10k replacement pitch.

Fast, honest HVAC — priced before we start.

Comfort Back Today

Same-day and 24/7 emergency service, tight windows.

NATE-Certified Techs

Credentialed pros who fix what's actually broken.

The Quote Is the Price

Flat, upfront pricing you approve before we start.

Repair-First, Not Sell-First

We tell you honestly when repair beats replacement.

Repair, tune-up, or replace — your comfort, handled.

Emergency HVAC
No heat or no cool? We answer around the clock and get to you fast before a bad night turns into an expensive one.
Learn More →
AC Repair
Fast diagnosis and repair for any brand — with a flat quote before we start and same-day service when you need it most.
Learn More →
Furnace & Heating
Furnace and heating repair done right the first time, with 24/7 emergency help when the heat quits in a cold snap.
Learn More →
Tune-Ups & Maintenance
Seasonal tune-ups and simple maintenance plans that keep your system efficient and catch problems before they cost you.
Learn More →
New System Installs
Right-sized, professionally installed AC and furnace systems — with honest options and financing, never a hard sell.
Learn More →
Heat Pumps & Mini-Splits
Modern heat pumps and ductless mini-splits for efficient heating and cooling in any room, installed to spec.
Learn More →

Why homeowners trust Summit Heating & Air

We've kept Denver homes comfortable for 18 years and 20,000+ service calls. You get a real arrival window, a flat quote you approve up front, and a NATE-certified tech who fixes it right — not one who upsells you a whole new system you don't need.

Same-Day Comfort

Tight arrival windows and 24/7 emergency service, day or night.

The Quote Is the Price

You approve the price before we start — it never changes.

Repair-First Techs

NATE-certified techs who fix what's broken, not what sells.

Flexible Financing

Monthly payment options make a new system affordable.

Workmanship
Guaranteed

A simple process, start to finish

01

Get your free quote

Call or book online in 60 seconds and grab an arrival window that works for you — 24/7 for emergencies.

02

We diagnose & fix it

A NATE-certified tech arrives on time, gives you a flat quote to approve, and gets your system running — usually same visit.

03

Enjoy a comfortable home

Guaranteed work, a clean workspace, and a follow-up to make sure everything's running perfectly.

What our customers say

★★★★★
“AC died on a 98° Saturday. They had a tech here in two hours and the price was exactly the quote. Lifesavers.”
Greg M.
Aurora
★★★★★
“Another company told me I needed a whole new furnace. Summit fixed it for $280 and showed me why. Customer for life.”
Dana W.
Denver
★★★★★
“On time, clean, and they explained everything without the pressure. Booked them for my rental too.”
Priya & Sam R.
Lakewood

Service that checks all the boxes

Licensed & Insured

Fully licensed and insured for your protection and peace of mind.

24/7 Emergency Service

We answer day or night and get to you fast.

Upfront Flat Quotes

Approve a clear price before any work starts.

NATE-Certified Techs

Credentialed pros trained to fix, not upsell.

Workmanship Guarantee

If it's not right, we come back and make it right.

Same-Day Availability

Real arrival windows, no all-day wait.

Frequently asked questions

Do you offer 24/7 emergency service?
Yes — a no-heat or no-cool emergency in Colorado weather can't wait for business hours, so we don't either. Call anytime, day or night.
How much will it cost?
You get a flat quote before any work begins, and it doesn't change. No hourly meter, no add-ons you didn't approve — the number you're told is the number you pay.
Can you come today?
Usually yes. We hold same-day slots and run 24/7 emergency service across the Denver metro for no-heat and no-cool calls.
Do I really need a whole new system, or can it be repaired?
Most of the time it can be repaired — and we'll tell you honestly. We only recommend replacement when the numbers genuinely favor it, and we'll show you exactly why before you spend a dollar.
Are you licensed and insured?
Yes — fully licensed, insured, and every tech is NATE-certified and background-checked. Your home and your system are in credentialed, accountable hands.
Do you have a maintenance plan, and do you guarantee the work?
Both. Our seasonal maintenance plan means fewer breakdowns, lower bills, and priority booking. And every repair and install is backed by our workmanship guarantee.

No heat or no cool? We're ready 24/7.

Book your free inspection today and get a custom quote with no obligation.

Free InspectionNo obligation.
Honest EstimateUpfront pricing.
Fast SchedulingConvenient times.
Book Your Free Inspection