Castle Pines, CO — Douglas County

Castle Pines Heating & Cooling

Family-owned since 2004 and based in Centennial, Hytek repairs, replaces and maintains furnaces, air conditioners, heat pumps and water heaters across Castle Pines. Flat-rate prices, approved before we start.

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

✓ Upfront flat-rate pricing✓ Castle Pines permits handled✓ Carrier, Lennox & Trane✓ All major brands serviced
Services in Castle Pines

Everything your Castle Pines home needs

22.4% of Castle Pines homes were built in 2020 or later. Castle Pines has one of the highest shares of brand-new housing in the metro, and even the city says the electric provider depends on the address, so equipment and rebate choices start with an address check.

$150 – $900+

AC Repair

When the AC quits in Castle Pines, the July average high is 85.7°F and the upstairs bedrooms go first. We diagnose the actual failure, quote a flat price before any work, and carry the common parts on the truck.

$150 – $1,200+

Furnace Repair

Castle Pines plans around a 3°F winter design temperature. When the furnace stops, we find the failed part, give you a flat price before we start, and fix most problems on the first visit.

$3,800 – $10,000 installed

AC Installation

A new AC in Castle Pines should be sized to your house at 6,559 feet, not copied from the old unit’s label. We run a load calculation, quote flat-rate, pull the City of Castle Pines Building Department permit and handle the paperwork.

$3,500 – $8,500 installed

Furnace Replacement

Replacing a furnace in Castle Pines means sizing for a 3°F winter design temperature, venting correctly at 6,559 feet, and pulling the right permit. We quote flat-rate, and the price we quote is the price you pay.

$6,000 – $15,000 before rebates

Heat Pump Installation

Cold-climate heat pumps work in Castle Pines, including on a 3°F winter design temperature nights, when they are sized and set up correctly. We design the system, pair it with backup heat where it makes sense, and line up every rebate your address qualifies for.

$150 – $1,200+

Heat Pump Repair

Heat pumps in Castle Pines run all year, heating in winter and cooling in summer, so they wear faster than a furnace or AC alone. We diagnose defrost, reversing valve, refrigerant and control faults and quote the fix before we start.

$900 – $2,800 installed (replacement)

Water Heater Repair & Replacement

No hot water in Castle Pines? We repair and replace tank and tankless water heaters, gas and electric, and handle the City of Castle Pines Building Department permit when a replacement needs one.

Quoted per zone

Ductless Mini-Split Installation

Ductless mini-splits heat and cool rooms the central system never reached, such as additions, basements, garages and bonus rooms over the garage. We design by zone and install cold-climate models rated for Colorado winters.

Furnace tune-up $100 – $149; AC tune-up $100 – $129

HVAC Maintenance & Tune-Ups

Two visits a year keep a Castle Pines system ready for a 85.7°F July and a 3°F winter design temperature. Our tune-ups include combustion and CO testing, electrical checks, coil cleaning and an honest report on what is actually wearing out.

Flat-rate, quoted before work

Emergency HVAC Repair

No heat on a 18°F night or no AC on a 85.7°F afternoon in Castle Pines? Call (303) 627-3395. We dispatch from Centennial and give you a flat price on the phone before anyone starts work.

Castle Pines, CO — local facts

HVAC in Castle Pines: what’s different here

Castle Pines has one of the highest shares of brand-new housing in the metro, and even the city says the electric provider depends on the address, so equipment and rebate choices start with an address check.

Elevation & climate

6,559 ft. Avg January low 18°F, avg July high 85.7°F, design temp 3°F, about 57.5 in of snow a year.

Homes

22.4% of Castle Pines homes were built in 2020 or later (median year built 2005).

Utilities

Electric: CORE Electric for most addresses; Xcel in Hidden Pointe. Gas: Xcel Energy or Black Hills Energy depending on address.

Permits

City of Castle Pines Building Department. Contractors need a City of Castle Pines Class G (Mechanical/HVAC) license before working in the city; no permits are issued to unlicensed contractors.

Rebates and programs for Castle Pines homeowners (2026)

  • CORE Cool Credits: CORE Electric members with central AC or a heat pump earn bill credits for letting an eligible smart thermostat take part in summer demand events. Source
  • Black Hills Energy 2026 gas rebates: For Black Hills gas customers: $260 (90% AFUE), $350 (95%) or $375 (97%) on a new furnace, up to $30 on a tune-up every 3 years, up to $100 on a smart thermostat. Source
  • 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 Castle Pines

Castle Pines neighborhoods we serve

The Canyons, Hidden Pointe, Glen Oaks, Esperanza, Ventana, Amber Ridge — ZIP 80108

HVAC service near Castle Pines

HVAC in Castle Pines: common questions

How much does HVAC service cost in Castle Pines?

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 Castle Pines?

Repairs generally do not. Replacing or installing a furnace, AC, heat pump or water heater does. Permits for Castle Pines addresses go through City of Castle Pines Building Department. Contractors need a City of Castle Pines Class G (Mechanical/HVAC) license before working in the city; no permits are issued to unlicensed contractors. We pull the permit and schedule the inspection.

What HVAC rebates are available in Castle Pines in 2026?

For heat pumps: either Xcel’s heat pump rebate or CORE’s thermostat credits, depending on which utility serves the address; 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. Black Hills gas customers get $260–$375 on a new 90%+ furnace. Xcel’s gas furnace rebates ended Jan. 1, 2026, and the federal 25C credit does not apply to 2026 installs.

Who provides gas and electricity in Castle Pines?

Electric: CORE Electric for most addresses; Xcel in Hidden Pointe. Gas: Xcel Energy or Black Hills Energy depending on address. 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 Castle Pines?

Yes. We serve all of Castle Pines (ZIP 80108), including The Canyons, Hidden Pointe, Glen Oaks, Esperanza, Ventana. 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.

Castle Pines, CO

Need HVAC service in Castle Pines?

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

Call (303) 627-3395
Or schedule online →

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