★★★★★ Rated 4.7 out of 5
4.7 Google rating from 432 reviews
HVAC Company in Parker, CO
Furnace and AC service, with Town of Parker permits pulled for you.
- HVAC diagnostic: $99.95
- Price before any work starts
- Written guarantees
Parker HVAC Service, Explained Before You Pay
Furnace and AC repair plus heating, AC, heat pump, mini-split and boiler installs for Parker homes, with Town of Parker permits pulled for you.
Summit Heating, A/C, Plumbing & Electrical repairs, installs and replaces furnaces, air conditioners, heat pumps, ductless mini-splits and boilers for homeowners in Parker, including Pine Valley, Bradbury Hills and the Butterfield area off South Parker Road. It’s for Parker households with a furnace on its last winters or an AC replacement to plan who want straight answers about the Town of Parker’s permit and code rules and a price before work begins. You get a posted diagnostic fee, a repair-first recommendation where repair is real, and an estimate you can approve later from a link.
Summit Heating, A/C, Plumbing & Electrical repairs, installs and replaces furnaces, air conditioners, heat pumps, ductless mini-splits and boilers for homeowners in Parker, including Pine Valley, Bradbury Hills and the Butterfield area off South Parker Road. It’s for Parker households with a furnace on its last winters or an AC replacement to plan who want straight answers about the Town of Parker’s permit and code rules and a price before work begins. You get a posted diagnostic fee, a repair-first recommendation where repair is real, and an estimate you can approve later from a link.
HVAC diagnostic: $99.95.
Your technician reviews the estimate with you. You can approve it on the spot or later through a link to the estimate.
How a Summit HVAC Visit Works in Parker
1. Book the visit
Call (720) 870-1580 or request service online.
2. Diagnosis
Your technician runs the HVAC diagnostic ($99.95) and explains what failed and why.
3. Estimate review
Your technician reviews the estimate with you. Approve it on the spot or later through the link.
4. Permit, work and cleanup
For installs and replacements, we file the permit through eTRAKiT or the county, do the work, and clean up.
Our hours are Monday to Friday 7am to 6pm and Saturday and Sunday 8am to 3pm. After hours: our answering service takes your call and we call back the next business day.
HVAC Services for Parker Homes
Furnace repair
Diagnosing and repairing gas furnaces.
AC repair
Central AC that won't cool, short-cycles or leaks.
Furnace installation
New or replacement furnace, permit included.
Furnace tune-up and AC tune-up
Seasonal checks.
AC installation and replacement
Central AC, sized and permitted through the town.
Heat pump installation and repair
Cold-climate heat pumps, dual fuel setups, and repairs to existing heat pumps.
Ductless mini-splits
Installs for rooms the ducted system doesn't reach, plus mini-split repair.
Humidifiers
Whole-home humidifiers for dry winter air.
Boiler repair and replacement
Hot-water boilers.
Commercial HVAC replacement
Replacement only.
We don’t build ductwork, clean ducts or work on new construction, and we’ll tell you so before a visit if your project needs them.
HVAC Financing, Memberships and Rebates
HVAC diagnostic: $99.95. Your technician reviews the estimate with you. You can approve it on the spot or later through a link to the estimate.
Financing is available through Service Finance Company, LLC, subject to credit approval. See terms when you apply. Ask about our maintenance memberships.
Xcel rebates may apply. We confirm current amounts with your quote. Xcel rebates apply to Xcel customers only; some addresses south and west of Denver are served by IREA. IREA serves parts of Douglas County, so check which utility is on your bill before counting on an Xcel rebate. Xcel’s central AC rebates ended for invoices dated after Jan 1, 2024, and the federal 25C credit doesn’t cover equipment placed in service after 2025. Programs change without notice. Eligibility is confirmed at quote. Checked Nov 2026.
Financing is available through Service Finance Company, LLC, subject to credit approval. See terms when you apply. Ask about our maintenance memberships.
Xcel rebates may apply. We confirm current amounts with your quote. Xcel rebates apply to Xcel customers only; some addresses south and west of Denver are served by IREA. IREA serves parts of Douglas County, so check which utility is on your bill before counting on an Xcel rebate. Xcel’s central AC rebates ended for invoices dated after Jan 1, 2024, and the federal 25C credit doesn’t cover equipment placed in service after 2025. Programs change without notice. Eligibility is confirmed at quote. Checked Nov 2026.
Equipment Rules for a Parker HVAC Replacement
- Efficiency minimums: Colorado is in the federal North region: split AC 13.4 SEER2; split heat pump 14.3 SEER2 and 7.5 HSPF2.
- Low-NOx furnaces: New gas furnaces and water heaters sold in Colorado since Jan 1, 2026 must meet ultra-low-NOx limits (or be ENERGY STAR). Repairing your existing furnace isn’t affected.
- Refrigerant: Existing R-410A systems can legally be repaired. EPA rules affect new equipment, and most new systems use R-454B or R-32.
- Altitude: Gas furnaces are set up to the manufacturer’s high-altitude instructions for the model you choose.
- Heating load: Denver-area normals run about 5,863 heating degree days a year against 849 cooling degree days (NOAA 1991-2020, Denver International Airport), so the heating side sets most sizing choices.
Town of Parker Permits and Codes for HVAC
The Town of Parker Building Division (20120 E. Mainstreet) lists furnace replacements and air conditioner installs or replacements as work that needs a permit. All permit applications are handled online through the town’s eTRAKiT portal. As your contractor, we apply and schedule the inspection. (Town of Parker, checked Nov 2026.)
Parker had the 2024 International codes in effect as of June 30, 2026, plus the 2025 Colorado Wildfire Resiliency Code. On the electrical side, Parker stays on the 2023 National Electrical Code through Dec 31, 2026 and moves to the 2026 NEC on Jan 1, 2027. Under the 2023 NEC, new outdoor AC and heat pump equipment needs code-required GFCI protection since Sept 1, 2026. (Checked Nov 2026; recheck January 2027.)
Parker had the 2024 International codes in effect as of June 30, 2026, plus the 2025 Colorado Wildfire Resiliency Code. On the electrical side, Parker stays on the 2023 National Electrical Code through Dec 31, 2026 and moves to the 2026 NEC on Jan 1, 2027. Under the 2023 NEC, new outdoor AC and heat pump equipment needs code-required GFCI protection since Sept 1, 2026. (Checked Nov 2026; recheck January 2027.)
HVAC for Parker Addresses in Unincorporated Douglas County
Some homes with a Parker mailing address sit outside town limits in unincorporated Douglas County. Their permits come from the Douglas County Building Division in Castle Rock, which moved to the 2024 ICC codes on July 1, 2026. We confirm which office governs your address before we quote.
- Inside Town of Parker limits (for example Pine Valley near Riva Ridge Park and Pioneer Elementary): Town of Parker Building Division, eTRAKiT. Building codes: 2024 I-codes. Electrical code: 2023 NEC to Dec 31, 2026; 2026 NEC from Jan 1, 2027.
- Parker address in unincorporated Douglas County: Douglas County Building Division, Castle Rock. Building codes: 2024 ICC codes since July 1, 2026. Electrical code: 2023 NEC; newer NEC from Jan 1, 2027.
Credentials on Our HVAC Team
Summit is a Mitsubishi Diamond Contractor and a Lennox Premier Dealer, holds the Lennox Centurion Award, and employs NATE-certified technicians. These are heating and cooling credentials.
Our Written Guarantees on Every HVAC Job
Google Reviews of Summit Heating, A/C, Plumbing & Electrical
Summit holds a 4.7 rating from 432 Google reviews (as of Nov 4, 2026). Reviewers mention furnace replacement 35 times.
"he was extremely thorough and very knowledgeable with his advice on what to do with our units."
Kyle
Related HVAC Services Near Parker
Heating and cooling services in Parker
HVAC Service in Nearby Cities
Nearby, we cover heating and cooling in Castle Rock, Centennial, Aurora and Highlands Ranch. Plumbing and electrical in Parker are linked below.
HVAC Questions from Parker Homeowners
What does AC or furnace repair cost in Parker?
Repairs start with the HVAC diagnostic, which is $99.95. Your technician explains the problem and reviews the estimate with you. You can approve it on the spot or later through a link to the estimate.
Does Parker require a permit to replace a furnace or AC?
Yes. The Town of Parker lists furnace replacements and air conditioner installs or replacements as permitted work, and applications go through eTRAKiT. We pull the permit as your contractor.
My address says Parker. Is my permit from the town?
Not always. Some Parker-address homes are in unincorporated Douglas County, where the Douglas County Building Division issues permits under the 2024 codes it adopted July 1, 2026. We check your address before we quote.
Which electrical code applies to a new AC in Parker?
Parker uses the 2023 National Electrical Code through Dec 31, 2026 and the 2026 NEC from Jan 1, 2027. Under the 2023 NEC, new outdoor AC and heat pump equipment needs code-required GFCI protection.
Can I get an Xcel rebate in Parker?
Only if Xcel is your utility. IREA serves parts of Douglas County, and Xcel rebates apply to Xcel customers only. We confirm current amounts with your quote.
Do you work weekends in Parker?
Yes. We’re open Saturday and Sunday 8am to 3pm and Monday to Friday 7am to 6pm. After hours: our answering service takes your call and we call back the next business day.
Book an HVAC Diagnostic in Parker
Call (720) 870-1580 to book an HVAC diagnostic. Prefer to book online? Request service.