HVAC companies in Longmont, CO 80501

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

Area profitability, HVAC55 / 100Strong market, crowded field
Typical home value$479,000−1.8% in the past year
New homes permitted, 20252,001Boulder County
Homeowners58.5%18,318 households

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

Airius LLCHVAC contractor · 811 S Sherman St, Longmont(888) 247-7327 · airiusfans.com
Blue Valley Heating & CoolingHVAC contractor · 135 Gay St Ste E, Longmont(303) 993-2645 · bluevalleyenergy.com
Carbon Valley Heating & Air (Longmont)HVAC contractor · 353 Main St, Longmont(303) 625-7517 · carbonvalleyheatingandair.com
Carroll Mechanical ServicesHVAC contractor · 1830 Boston Ave Ste E, Longmont(720) 891-3518 · longmontheating-hvac-cms.com
Carroll Mechanical ServicesHVAC contractor · 32 S Main St, Longmont(720) 891-3518 · longmontheating-hvac-cms.com
Colorado's Finest Heating and Air ConditioningHVAC contractor · 1524 Collyer St, Longmont(720) 378-1135 · coloradosfinestheating.com
Control Service CenterHVAC contractor · 826 S Sherman St, Longmont(303) 449-7405 · controlservicecenter.com · 1 driver, 1 truck
Everest MechanicalHVAC contractor · 1254 Sherman Dr Unit 5, Longmont(888) 388-0970 · everestmechanical.com
Homerun Heating & AirHVAC contractor · 727 Main St, Longmont(303) 586-7233 · homerunheating.com
M and M Heating, Cooling, Plumbing and ElectricalHVAC contractor · 110 S Bowen Cir, Longmont(720) 915-8146 · mandmhvac.com
Mountain Comfort Climate SystemsHVAC contractor · 1223 Bowen Cir Ste 2, Longmont(303) 682-9202 · americanstandardair.com
Northern Colorado Air, IncHVAC contractor · 320 Main St, Longmont(303) 684-8875 · ncagriff.com
SAC Mechanical Heating & Air ConditioningHVAC contractor · 105 S Sunset, Unit A, Longmont(303) 825-9483 · sacmechanical.com
Service Experts Heating & Air ConditioningHVAC contractor · 1929 Nelson Rd, Longmont(303) 776-8556 · serviceexpertslongmont.com
TNT Home ServicesHVAC contractor · 525 3rd Ave, Longmont(720) 713-3565 · tnthomeservicesco.com
TNT Home Services - LongmontHVAC contractor · 525 3rd Ave, Longmont(720) 713-3565 · tnthomeservicesco.com
Touchstone Commercial Building ServicesHVAC contractor · 1821 Lefthand Cir, Longmont(303) 848-8990 · touchstonecbs.com
Twin Peaks Heating Cooling PlumbingHVAC contractor · 811 Main St, Longmont(720) 491-3484 · northerncoloradohvac.com
Viking Mechanical Services, LLCHVAC contractor · 135 Gay St Ste C, Longmont(303) 876-7665 · vikingmechanicalservices.net
Welzig Heating, Air, Plumbing & ElectricHVAC contractor · 1831 Boston Ave, Longmont(303) 678-5576 · welzig-heating-and-air.com
Wright Heating & Air ConditioningHVAC contractor · 1101 Colorado Ave, Longmont(303) 651-0467 · wrightheating.net
Apollo Air Conditioning and Heating - LongmontHVAC contractor · 357 Main St #33, Longmont(720) 608-5545

HVAC in ZIP 80501 at a glance

Local building angle: Boulder County permitted 2,001 new homes in 2025, including 1,534 apartment units. 18% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.