Technicians available today in Denver Metro
Comfort you can count on, every season.
Heating, cooling, and indoor air quality from a local team that shows up on time, quotes upfront, and stands behind every job.
- 24/7 emergency service
- Licensed & insured
- 4.9 rating · 1,200+ reviews
arrival time
What we do
Complete heating and cooling services under one roof
Residential and light commercial. Every visit includes a written, flat-rate quote before work begins.
AC Repair & Install
Fast diagnostics and repairs for every major brand, plus right-sized, high-efficiency replacements.
Book this service: AC Repair & InstallFurnace & Heating
Gas and electric furnace repair, safety inspections, and installs that keep winter bills in check.
Book this service: Furnace & HeatingHeat Pumps
All-season heating and cooling with ENERGY STAR heat pumps — rebate paperwork handled for you.
Book this service: Heat PumpsIndoor Air Quality
Whole-home filtration, humidifiers, UV purifiers, and duct cleaning for cleaner, healthier air.
Book this service: Indoor Air QualitySmart Thermostats
Installation and setup of Nest, Ecobee, and Honeywell thermostats with zoning options.
Book this service: Smart ThermostatsMaintenance & Tune-Ups
Seasonal tune-ups that catch small problems early and extend the life of your equipment.
Book this service: Maintenance & Tune-Ups
4.9
Average rating across Google, Yelp, and Angi
Why Summit
Family-owned, locally trusted since 1998
We treat every home like our own. That means honest recommendations, tidy work, and repairs done right the first time — not upsells.
- Upfront, flat-rate pricing — no overtime surprises
- Background-checked, drug-tested technicians
- Clean-home promise with boot covers and drop cloths
- 100% satisfaction guarantee on every repair
- Years in business
- 28
- Homes serviced
- 15k+
- NATE-certified techs
- 42
- Parts & labor warranty
- 10yr
Maintenance plans
Stay ahead of breakdowns
Regular maintenance cuts energy use by up to 15% and prevents most emergency repairs. Cancel anytime.
Essential
Annual peace of mind for a single system.
$14/month
- 1 tune-up per year
- 10% off repairs
- No overtime fees
- Priority scheduling
- Most popular
Comfort Club
Our most popular plan for heating and cooling.
$24/month
- 2 tune-ups per year (heat + AC)
- 15% off repairs
- No overtime or trip fees
- Same-day priority service
- Filter replacements included
Total Home
Full coverage for multi-system homes.
$39/month
- Up to 3 systems covered
- 20% off repairs
- Annual duct & air quality check
- Front-of-line emergency response
- Extended equipment warranty
Reviews
Neighbors who stay comfortable with us
“Our furnace died on the coldest night of the year. Summit had someone here in under an hour and the heat back on by midnight. Fair price, zero pressure.”
Maria L. · Littleton “They quoted three options for a new AC and explained each one clearly. Install crew was spotless and finished in a day. Our summer bill dropped 30%.”
James & Priya K. · Aurora “Been on the Comfort Club for four years. They remind me about tune-ups, show up on time, and always leave the place cleaner than they found it.”
Daniel R. · Lakewood
No heat? No AC? We're on our way.
Call now for same-day service, or email us to schedule a free in-home estimate on a new system.
Proudly serving
- Denver
- Aurora
- Lakewood
- Littleton
- Englewood
- Arvada
- Westminster
- Centennial
Call us
(555) 214-7700Office
1820 Ridgeline Ave, Denver, CO
Hours
Mon–Sat 7am–7pm · 24/7 emergency