Air Duct Cleaning Cost in Gillette, Wyoming
Expect to pay $360 to $820 for air duct cleaning in Gillette, WY (whole house). Most homeowners end up near $610, depending on the equipment tier and how much of the old setup can be reused.
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Gillette Weather and HVAC Load
NOAA's 1991-2020 climate normals put Gillette at 7,158 heating degree days and 571 cooling degree days per year. Heating is the bigger job here, and furnaces and heat pumps in Gillette put in far more hours than the air conditioner. Count on roughly 174 nights below 32°F and 28 afternoons past 90°F in a typical year. Snowfall averages about 56 inches.
| Heating degree days / year | 7,158 |
|---|---|
| Cooling degree days / year | 571 |
| Nights at or below 32°F | 174 |
| Days above 90°F | 28 |
| Average low / high | 34.5°F / 59.2°F |
Gillette Housing Stock
Census figures put the median build year in Gillette at 1988, so a typical house here has about 38 years on it. Plenty of houses from this period still run original 1990s or early-2000s equipment, which is past its expected service life. Gillette has roughly 9,500 owner-occupied homes, or 75.2% of households. The median home value is $257,200, and median household income is $90,699. We use both figures to adjust labor and pricing for this page.
NOAA storm reports for Campbell County show 31 hail days and 36 days with damaging thunderstorm winds over the six years from 2020 to 2025. The largest hail reported was 3 inches across. Hail flattens the thin aluminum fins on condenser coils and cuts airflow. After a big storm, take a look at the outdoor unit; homeowners insurance often covers the damage.
When to Book It
- A musty smell after a leak or flood
- Dust puffs out of the vents when the system starts
- You moved into a house with no maintenance records
- Signs of mice or insects in the ducts
What Moves the Price
- How many supply and return vents the house has
- Adding a dryer vent cleaning
- House size and duct layout
- Sanitizing or mold treatment
- How hard it is to reach ducts in the attic or crawlspace
We raised the national figures about 3% for Gillette using local income, home values and the equipment size this climate needs. Real bids can still come in outside the range, so collect three written quotes.
What the Quote Should Cover
- Inspecting the supply and return ducts
- Before-and-after photos
- Cleaning the registers and grilles
- Cleaning the blower compartment
- Cleaning under negative pressure with a truck or portable vacuum
Wyoming Permits, Efficiency Rules and Rebates
Wyoming falls in the DOE's North region. New split central air conditioners must meet at least 13.4 SEER2, and heat pumps sold anywhere in the U.S. need 14.3 SEER2 and 7.5 HSPF2.
Before You Hire
- If the ducts leak, have them sealed during the same visit.
- Watch out for $99 whole-house deals. They tend to turn into upsells once the crew is inside.
- Ask whether the company follows NADCA standards.
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Air Duct Cleaning Questions from Gillette Homeowners
How much is air duct cleaning in Gillette?
Plan on $360 to $820, with most jobs near $610. Equipment efficiency, house size and the condition of the ducts and wiring decide where your quote falls.
When is the best time to schedule air duct cleaning in Gillette?
Between late spring and early fall. Gillette averages 174 freezing nights a year, and heating calls spike from November through February.
How often should ducts be cleaned?
There's no set schedule. The EPA recommends cleaning when there's visible mold, pests or a lot of debris, not on a routine basis.
Does duct cleaning lower energy bills?
Not by much. Sealing leaky ducts makes a much bigger difference to efficiency and comfort.
Air Duct Cleaning Near Gillette
- Casper $330 to $760
- Laramie $320 to $740
- Cheyenne $350 to $810
- Rock Springs $340 to $770
Sources: U.S. Census Bureau ACS 5-year estimates 2019-2023 and 2024 population estimates; NOAA NCEI U.S. Climate Normals 1991-2020, station Gillette; NOAA Storm Events Database 2020-2025, Campbell County. Prices are our estimates, not contractor quotes. Updated 2026.