HVAC companies in Castle Rock, CO 80109

10 HVAC companies, with local market data for this ZIP.

Area profitability, HVAC73 / 100Strong market, crowded field
Typical home value$646,000−1.3% in the past year
New homes permitted, 20252,398Douglas County
Homeowners81.4%9,449 households

Source: Zillow (home value and housing demand in the score), data through Sep 2026. Permits and households: U.S. Census Bureau.

A & B MechanicalHVAC contractor · 1810 Park St, Castle Rock(303) 688-4320 · abmech.com
Affordable Plumbing Heat and ElectricalHVAC contractor · 385 Park Ct, Castle Rock(720) 613-9921 · affordableplumbingandheat.com
Allied Heating and Air ConditioningHVAC contractor · 1609 Park St, Castle Rock(303) 747-4564 · allied-heatingandair.com
Avalanche HVAC ServicesHVAC contractor · 735 Park St., Unit A, Castle Rock(303) 736-8151 · avalanchehomesystems.com · 2 drivers, 1 truck
Conditioned AirHVAC contractor · 735 Park St, Castle Rock(303) 688-2460 · condaircorp.com · 1 driver, 1 truck
Courtesy Plumbing & HeatingHVAC contractor · 385 Park Ct, Castle Rock(303) 429-6990 · courtesyplumbingandheating.com
Mountain Air Comfort SystemsHVAC contractor · 353 Park Ct, Castle Rock(303) 814-3217 · mountainairmobile.com · 2 drivers, 2 trucks
Nytech Heating, Cooling, and PlumbingHVAC contractor · 970 Park St, Castle Rock(844) 240-4158 · nytechmetal.com · 1 driver, 1 truck
Nytech Heating, Cooling, and PlumbingHVAC contractor · 970 Park St, Castle Rock(844) 240-4158 · nytechmetal.com · 1 driver, 1 truck
Patriot Pros Plumbing, Heating, Air & ElectricHVAC contractor · 701 Park St, Castle Rock(720) 897-5559 · patriotpros.com
Mountain Air Comfort SystemsHVAC contractor · 2759 Liggett Rd, Castle Rock(303) 814-3217 · 2 drivers, 2 trucks

HVAC in ZIP 80109 at a glance

Local building angle: Douglas County permitted 2,398 new homes in 2025, including 881 apartment units. 77% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.