Lone Tree, CO — Douglas County

AC Installation in Lone Tree

A new AC in Lone Tree should be sized to your house at 6,280 feet, not copied from the old unit’s label. We run a load calculation, quote flat-rate, pull the City of Lone Tree Building Division permit and handle the paperwork.

Licensed & insured • Family-owned since 2004 • Flat-rate pricing

✓ Upfront flat-rate pricing✓ Lone Tree permits handled✓ Carrier, Lennox & Trane✓ All major brands serviced
AC Installation

AC Installation for Lone Tree homes

A new AC in Lone Tree should be sized to your house at 6,280 feet, not copied from the old unit’s label. We run a load calculation, quote flat-rate, pull the City of Lone Tree Building Division permit and handle the paperwork.

You get a flat price in writing before any work, and we will tell you plainly when a repair is not worth doing.

See our main ac installation page for how we approach this work across the metro.

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Manual J load calculation

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Matched coil and condenser

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Line set and pad replacement

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Permit and inspection

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Old unit and refrigerant recovery

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Warranty registration

Lone Tree service(303) 627-3395Flat-rate • 7 days
Lone Tree, CO — local facts

AC Installation in Lone Tree: what’s different here

Lone Tree publishes its own HVAC design values: a -3°F winter design temperature, 90°F summer dry bulb and 6,343 heating degree days. Unlike its CORE-served neighbors, the city is Xcel for both gas and electric.

Sizing for Lone Tree

Design conditions here are a 87.9°F July average high at 6,280 feet. We size from a Manual J load calculation because an oversized unit short-cycles and leaves the house clammy, and an undersized one runs all afternoon.

Refrigerant change

New systems now ship with A2L refrigerants (R-454B or R-32). EPA’s May 2026 rule dropped the install deadline for leftover R-410A stock, so both are legal; we explain the trade-off on parts and service life before you choose.

Permit

Permits are online-only through the city’s Accela portal. Lone Tree does not issue contractor licenses, but everyone on a permit must hold a Lone Tree business license.

Hytek pricing

AC Installation: $3,800 – $10,000 installed. Flat-rate, approved before work starts. Free estimates on replacements.

Elevation & climate

6,280 ft. Avg January low 14.9°F, avg July high 87.9°F, design temp -3°F.

Homes

About 35% of Lone Tree homes were built in the 2010s, mostly in RidgeGate (median year built 2004).

Utilities

Electric: Xcel Energy. Gas: Xcel Energy.

Permits

City of Lone Tree Building Division. Permits are online-only through the city’s Accela portal. Lone Tree does not issue contractor licenses, but everyone on a permit must hold a Lone Tree business license.

Rebates and programs for Lone Tree homeowners (2026)

  • Power Ahead Colorado: $1,500 off a new ENERGY STAR cold-climate heat pump (ducted or ductless) in an existing home. Needs pre-approval through a Power Ahead-badged contractor before work starts; stacks with utility and state incentives. Source
  • Colorado heat pump tax credit: $1,000 for air-source systems in 2026, claimed by a registered contractor who must pass at least a third to you as an invoice discount.

More Hytek services in Lone Tree

Lone Tree neighborhoods we serve

RidgeGate, Hillcamp, Carriage Club, Heritage Hills, Terra Ridge, Acres Green — ZIP 80124, 80134, 80112

AC Installation near Lone Tree

AC Installation in Lone Tree: common questions

How much does ac installation cost in Lone Tree?

Our published range is $3,800 – $10,000 installed. Every Hytek job is quoted flat-rate and approved before work begins, so the price you agree to is the price you pay. Replacements get free in-home estimates; see the full HVAC cost guide for the other services.

Do I need a permit for HVAC work in Lone Tree?

Repairs generally do not. Replacing or installing a furnace, AC, heat pump or water heater does. Permits for Lone Tree addresses go through City of Lone Tree Building Division. Permits are online-only through the city’s Accela portal. Lone Tree does not issue contractor licenses, but everyone on a permit must hold a Lone Tree business license. We pull the permit and schedule the inspection.

What HVAC rebates are available in Lone Tree in 2026?

For heat pumps: Xcel Energy’s 2026 heat pump rebates (the largest bonus goes to homes replacing gas heat); the $1,500 Power Ahead Colorado rebate (pre-approval required); Colorado’s $1,000 air-source heat pump credit, at least a third of which the installer must pass to you as a line-item discount. Xcel’s gas furnace rebates ended Jan. 1, 2026, and the federal 25C credit does not apply to 2026 installs.

Should I get a heat pump instead of a new AC in Lone Tree?

Often, yes. A heat pump costs more than a straight AC but also heats, and in Lone Tree it can qualify for Xcel Energy’s 2026 heat pump rebates (the largest bonus goes to homes replacing gas heat) and the $1,500 Power Ahead Colorado rebate (pre-approval required). A plain central AC has no current Xcel rebate. We quote both side by side.

Who provides gas and electricity in Lone Tree?

Electric: Xcel Energy. Gas: Xcel Energy. That matters because rebates, operating costs and who you call about a gas leak all depend on the utility.

Does Hytek serve my part of Lone Tree?

Yes. We serve all of Lone Tree (ZIP 80124, 80134, 80112), including RidgeGate, Hillcamp, Carriage Club, Heritage Hills, Terra Ridge. Call (303) 627-3395 or request service online.

Local data: U.S. Census Bureau (2025 population estimates; ACS 2020–2024 housing age), NOAA 1991–2020 climate normals, and city, county and utility program pages, checked September 2026. Rebates change; we confirm eligibility on your address when we quote.

Lone Tree, CO

Need ac installation in Lone Tree?

Flat-rate pricing, approved before work starts. Family-owned in Centennial since 2004.

Call (303) 627-3395
Or schedule online →

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