$89 furnace tune-up. Code TUNEUP89
Summit Heating & Air

24/7 emergency dispatch across Denver

Heating and cooling, fixed today. Priced before we start.

Real dispatchers, two-hour arrival windows, and NATE-certified technicians who show you the price before opening a panel. Serving Denver homes since 2011.

  • Licensed & insured
  • Same-day service
  • Flat-rate pricing
A Summit technician in a navy uniform servicing an outdoor AC condenser unit
Google rating, 1,400+ reviews
4.9
Average emergency arrival
42 min
Serving Denver homes
15 yrs
Licensed, bonded & insured
100%

What we do

Every degree in the house, under control.

Heating, cooling, and air quality from one licensed crew, so you never coordinate two companies for one comfort problem.

  • Emergency repair

    No heat in January or no cooling in July. A truck is dispatched within the hour, day or night.

  • AC repair & install

    Central air, ductless mini-splits, and high-efficiency replacements sized right for your home.

  • Furnace & boiler

    Gas furnace repair, heat exchanger inspection, and full replacements with a written efficiency estimate.

  • Heat pumps

    Cold-climate heat pump installs that qualify for federal and Xcel rebates. We file the paperwork.

  • Ductwork & air quality

    Duct sealing, whole-home filtration, humidifiers, and UV purification for cleaner air.

  • Maintenance plans

    Two tune-ups a year, priority scheduling, and 15% off repairs. Most breakdowns never happen.

We service and install leading brands

  • Carrier
  • Trane
  • Lennox

Comfort now, payments later

0% APR for 18 months

Qualified homeowners can replace a failed system now and spread the cost across 18 interest-free monthly payments.

Check financing options

Subject to credit approval. Terms and participating equipment may vary.

Prevent breakdowns

Maintenance that pays for itself

Choose the coverage that fits your home. Both plans renew monthly and can be cancelled any time.

Seasonal

The essentials for one heating and one cooling system.

$16/month

  • Two annual tune-ups
  • Priority scheduling
  • 10% off repairs
Ask about this plan
Most popular

Whole-home

Our best protection for year-round comfort and air quality.

$29/month

  • Two annual tune-ups
  • Same-day priority service
  • 15% off repairs
  • No overtime fees
Ask about this plan

Current savings

Offers for a more comfortable home

Mention the code when you call or include it in your online request.

$89 furnace tune-up

A complete seasonal inspection, safety check, and efficiency report.

TUNEUP89Claim offer

$500 off a qualifying system

Save on select high-efficiency furnace, AC, and heat-pump installations.

COMFORT500Claim offer

Free second opinion

Get a no-pressure review of any written replacement estimate.

A Summit HVAC service van with its side door open, showing organized shelving of tools, filters, and refrigerant tanks

How it works

No mystery, no upsell, no mess.

Three steps from the moment you call to the moment we pull out of your driveway.

  1. Call or book online

    Tell us what the system is doing. A real dispatcher answers and gives you a two-hour arrival window.

  2. Upfront flat-rate quote

    Your technician runs a full diagnostic and shows you the price before any work begins. No hourly surprises.

  3. Fixed right, left clean

    We wear boot covers, protect your floors, and haul away old equipment. Every repair is backed by our warranty.

Our promise

Backed by a real guarantee, not a slogan.

2-year workmanship warranty

If our repair fails from our work, we return and fix it at no cost, guaranteed.

Flat-rate pricing, always

You approve a written price before we start. No hourly billing, no change-order surprises.

Licensed & background-checked

Every technician is NATE-certified, insured, and vetted under CO HVAC Lic #HV-004128.

Reviews

Neighbors who called once and kept calling.

4.9 stars across 1,400+ Google reviews. Here is what a few of them said.

  • Furnace quit at 6 AM in a snowstorm. Marcus was here by 9, had the igniter replaced by 10, and the price matched the quote to the dollar.
    Dana R.Highlands
  • Replaced our 20-year-old AC with a heat pump. They handled the Xcel rebate paperwork and our summer bill dropped by a third.
    Tom & Priya K.Aurora
  • Third year on their maintenance plan. They are the only contractor I have ever had show up when they said they would. Every single time.
    Luis M.Lakewood

Who shows up

The people behind the truck.

Every technician is a background-checked employee, not a subcontractor.

Marcus Reyes, Lead HVAC Technician, Owner

Marcus Reyes

Lead HVAC Technician, Owner

15 years NATE-certified, specializes in cold-climate heat pump conversions.

Dana Whitfield, Install Manager

Dana Whitfield

Install Manager

Furnace and AC replacements done to Manual J spec, code-certified since 2014.

Priya Anand, Dispatch Lead

Priya Anand

Dispatch Lead

The voice on the phone who gets a truck to your door on time.

Where we work

Trucks stationed across the metro.

If you are within 25 miles of downtown, you are in our two-hour window.

  • Denver
  • Aurora
  • Lakewood
  • Arvada
  • Westminster
  • Littleton
  • Englewood
  • Golden

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Hours

Mon – Fri
7:00 AM – 8:00 PM
Saturday
8:00 AM – 6:00 PM
Sunday
Emergency only

Shop

4410 W 38th Ave, Denver, CO 80212

Credentials

CO HVAC Lic #HV-004128 · NATE & EPA 608 certified · Background-checked technicians

Questions

Answers before you call.

The things most homeowners ask before booking a technician.

Get a quote

Tell us what the system is doing. We will call you back in 15 minutes.

No heat or no cooling should go straight to the phone. Everything else, drop it here and a dispatcher will call with an arrival window.

How urgent is this?

0/1000

No spam, no sales calls. A dispatcher calls you back, that's it.

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