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Heat Pump Installation in Littleton, CO
One system for winter heat and summer cooling, sized for 5,300 feet.
- HVAC diagnostic: $99.95
- Price before any work starts
- Written guarantees
Heat Pump Installation for Littleton Homes
Summit Heating, A/C, Plumbing & Electrical installs heat pumps for homeowners in Littleton from our shop at 8091 Shaffer Pkwy, Suite C. A heat pump cools the house in summer and heats it in winter with one outdoor unit. This page is for whole-home systems that use your existing ducts, including dual-fuel setups that keep a gas furnace as backup for the coldest nights. Your technician sizes the system for a house at about 5,300 feet, explains the trade-offs, and gives you an estimate to approve now or later.
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. If you’re ready to price a heat pump, ask for a replacement estimate when you call.
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. If you’re ready to price a heat pump, ask for a replacement estimate when you call.
Mitsubishi Diamond Contractor and NATE-Certified Heat Pump Team
Summit is a Mitsubishi Diamond Contractor and a Lennox Premier Dealer, holds the Lennox Centurion Award, and employs NATE-certified technicians.
Is a Heat Pump Right for a Littleton House?
Heating is the bigger job here. NOAA’s 1991-2020 normals for Denver International Airport show about 5,863 heating degree days a year against about 849 cooling degree days, and January lows average 18.7°F. That’s why we talk about cold-climate models and backup heat, not just cooling.
- Cold-climate heat pump What it is: A heat pump rated to keep heating in low outdoor temperatures; Who it suits: Homes ready to rely on the heat pump for most of the winter
- Dual fuel What it is: A heat pump paired with a gas furnace that takes over in deep cold; Who it suits: Homes with a working gas furnace, or owners who want gas as backup
- Ductless mini-split What it is: Wall or ceiling units with no ducts; Who it suits: Single rooms, additions and homes without ducts: see mini-splits
How Our Heat Pump Installation Process Works
- Call (720) 870-1580 or request service online. 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.
- Your technician looks at the ducts, the existing furnace and the electrical panel, and asks how you want to heat the house.
- You get a written estimate. Approve it on the spot, or later through the link.
- We pull the permit for your address.
- We install the outdoor unit, the indoor coil or air handler and the line set, set up the controls, test heating and cooling, and clean up.
- The building department inspects the finished work where the permit calls for it.
Heat Pump SEER2 and HSPF2 Rules, Refrigerants and Rebates
In the federal North region, which includes Colorado, a new split heat pump must reach at least 14.3 SEER2 and 7.5 HSPF2. Most new systems use R-454B or R-32 refrigerant, and under the EPA’s May 2026 rule, new residential heat pumps made from Jan 1, 2025 must meet a GWP limit of 700. (DOE and EPA, checked Nov 2026.)
Xcel rebates may apply. We confirm current amounts with your quote. Programs change without notice. Eligibility is confirmed at quote. Checked Nov 2026. The federal 25C credit doesn’t apply to equipment placed in service after Dec 31, 2025, so we don’t quote it.
Xcel rebates may apply. We confirm current amounts with your quote. Programs change without notice. Eligibility is confirmed at quote. Checked Nov 2026. The federal 25C credit doesn’t apply to equipment placed in service after Dec 31, 2025, so we don’t quote it.
Heat Pump Installation Cost Factors in Littleton
We don’t post heat pump prices yet. Your estimate depends on the system, the backup heat you choose and any electrical work, and you see it before any work starts.
What changes the price:
What changes the price:
- Cold-climate or standard model, and its capacity.
- Dual fuel with your gas furnace, or electric backup heat.
- Electrical panel capacity for the new equipment.
- Duct condition. We don’t do ductwork, so if your ducts need rework, we’ll tell you before you commit.
Littleton eTRAKiT Permits for Heat Pump Installation
Inside city limits, the City of Littleton Building Division issues the permit through eTRAKiT; its list covers air-conditioning equipment and other regulated mechanical work. Littleton has adopted the 2024 International codes, the 2026 National Electrical Code and the Colorado Model Electric Ready and Solar Ready Code. (City of Littleton, checked Nov 2026.)
Parts of 80128 around Columbine and Chatfield State Park, about 3 miles from our shop, are unincorporated Jefferson County, which applies the 2024 codes to permits applied for from July 1, 2026 and the 2026 NEC from Aug. 1, 2026. New outdoor heat pump equipment gets the GFCI protection the electrical code requires. We pull the permit as your contractor. (Checked Nov 2026.)
Parts of 80128 around Columbine and Chatfield State Park, about 3 miles from our shop, are unincorporated Jefferson County, which applies the 2024 codes to permits applied for from July 1, 2026 and the 2026 NEC from Aug. 1, 2026. New outdoor heat pump equipment gets the GFCI protection the electrical code requires. We pull the permit as your contractor. (Checked Nov 2026.)
Our Written Guarantees on Every Heat Pump Install
Google Reviews of Summit Heating, A/C, Plumbing & Electrical
Summit holds a 4.7 rating from 432 Google reviews.
"Jason was honest and transparent about what potential upgrades were worthwhile while others may not be appropriate for our situation."
Tobin
Related Heating and Cooling Services Near Littleton
HVAC Services Related to Heat Pumps
Heat Pump Repair and Ductless Mini-Split Options
Already have a heat pump that isn’t working right? See heat pump repair and maintenance. Rooms without ducts are covered on ductless mini-splits. If you’d rather stay with gas heat, see furnace replacement, and for an older gas furnace that needs a fix, furnace repair. The furnace tune-up keeps a dual-fuel furnace checked.
See the Littleton HVAC page. The heat pump page for the metro covers other cities, and Ken Caryl is next door to our shop.
See the Littleton HVAC page. The heat pump page for the metro covers other cities, and Ken Caryl is next door to our shop.
Heat Pump Questions from Littleton Homeowners
Does a heat pump work in a Littleton winter?
Yes, when it’s sized and chosen for the climate. Heating is the bigger load here, so we look at cold-climate models and backup heat, including dual fuel with a gas furnace for the coldest nights.
How much does a heat pump installation cost?
We give you a written estimate after looking at your ducts, furnace and panel. The price depends on the model, the backup heat and any electrical work. You can approve it on the spot or later through a link.
Are there heat pump rebates in Littleton?
Xcel rebates may apply, and we confirm current amounts with your quote. The federal 25C credit doesn’t apply to equipment placed in service after Dec 31, 2025. Programs change without notice.
Do I need new ductwork for a heat pump?
Not usually, if your ducts are in good shape. We don’t do ductwork, so if yours need rework we’ll say so before you commit. For rooms without ducts, a ductless mini-split is the other route.
What efficiency does a new heat pump need in Colorado?
In the federal North region, a new split heat pump must reach at least 14.3 SEER2 and 7.5 HSPF2. We show you that minimum next to higher-efficiency options.
Can I finance a heat pump?
Financing is available through Service Finance Company, LLC, subject to credit approval. See terms when you apply.
Schedule Heat Pump Installation in Littleton
Get a heat pump estimate Call (720) 870-1580 to schedule a replacement estimate. Or request service at /get-a-quote/.