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AC installation · Westminster

Cool, quiet comfort in Westminster.

Load-calculated sizing, hail protection and a clean one-day install for most replacements. Free estimates and financing.

🛡️ Insured & EPA-certified🕑 24/7 emergency💬 Written price first💳 Financing available

A new AC in Westminster has to handle bright high-altitude sun and hot, dry afternoons. Mostly 1970s and 1980s tract homes, with newer homes toward the north and redevelopment around Downtown Westminster. Westminster sits between Denver and Boulder along US 36, with large established neighborhoods and steady redevelopment. Every project starts with a free estimate that looks at your ducts, returns and the rooms that never cool, then we recommend equipment that fits.

What we see in Westminster homes

Older homes often added AC with undersized line sets or coils, and correcting that is part of a quality replacement.

  • Many 1970s and 1980s homes are due for full system replacement, ductwork included.
  • Neighborhoods around Standley Lake include larger homes with more complex layouts.
  • Many commuting owners prefer appointments scheduled around the workday.

Westminster at a glance

County
Adams and Jefferson Counties
Elevation
About 5,300 feet
Housing
Mostly 1970s and 1980s tract homes, with newer homes toward the north and redevelopment around Downtown Westminster.
Areas we serve
Neighborhoods around Standley Lake, Downtown Westminster, Hyland Hills and homes near the US 36 corridor
Nearby
Arvada, Broomfield, Thornton, Wheat Ridge

What your Westminster AC installation includes

The right AC starts with the right numbers. We measure the home, check return air, and choose between single-stage, two-stage and variable-speed equipment based on comfort and noise goals. Installation includes matched components, proper evacuation, measured refrigerant charge, permits where required and a walk-through.

  • Return air and duct evaluation
  • Matched condenser and indoor coil
  • Pressure test, deep evacuation and measured charge
  • Hail guard options and smart placement
  • Permit handling where required

Denver-area cooling loads are mostly dry heat rather than humidity, and at about 5,300 feet the sun is intense. That changes equipment settings and airflow targets, and we set them for Westminster conditions rather than generic defaults.

Typical AC installation pricing in Westminster

ServiceTypical range
Central AC on an existing furnace and ductwork, 2 to 3 ton$6,000 to $9,000
High-efficiency two-stage or variable-speed AC$9,000 to $14,000
Swamp cooler to central AC conversion$7,500 to $14,000+
First-time AC requiring new ductwork$12,000 to $20,000+

Typical range, exact quote after free estimate. Consider a heat pump too: qualifying systems may be eligible for Xcel Energy and Colorado incentives.

For the full picture on AC installation, including how we approach every job, see our ac installation in Denver guide. Members of our Comfort Club get free diagnostics, repair discounts and front-of-line priority, and you can always reach us directly.

Also serving

Near Westminster.

We also provide AC installation in nearby Arvada, Broomfield, Thornton and Wheat Ridge.

Free estimate

AC installation in Westminster, priced upfront.

Send a few details and we'll get back to you the same day with honest, upfront pricing. Heat or AC down right now? Call or text, we're on it.

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24/7 emergency service in Westminster
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Good to know

Westminster questions, answered.

Do you install AC in neighborhoods around Standley Lake and Downtown Westminster?+
Yes. We install throughout Westminster, including neighborhoods around Standley Lake, Downtown Westminster, Hyland Hills and homes near the US 36 corridor. Older homes often added AC with undersized line sets or coils, and correcting that is part of a quality replacement.
What size AC does a Westminster home need?+
It depends on the home, not only square footage. We calculate the load room by room, factoring in windows, insulation, layout and sun exposure at about 5,300 feet, then confirm your ducts can deliver the airflow.
How much does AC installation cost in Westminster?+
Most central AC installs fall between about $6,000 and $14,000, with first-time systems that need ductwork running higher. That is a typical range, and your exact price comes in writing after a free estimate.
How long does AC installation take?+
Most replacements take one day. Swamp cooler conversions and new duct systems typically take two to three days.
Can you replace my swamp cooler with central air?+
Yes. We remove the evaporative cooler, seal the roof opening and design ducts and returns for refrigerated air.

Comfort you can
count on in Westminster.

White-glove heating and cooling, honest pricing and a free estimate on every new system.

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