Air Duct Cleaning Cost in Green Bay, Wisconsin
Expect to pay $320 to $720 for air duct cleaning in Green Bay, WI (whole house). Most homeowners end up near $540, depending on the equipment tier and how much of the old setup can be reused.
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Green Bay Weather and HVAC Load
NOAA's 1991-2020 climate normals put Green Bay at 7,779 heating degree days and 425 cooling degree days per year. Heating is the bigger job here, and furnaces and heat pumps in Green Bay put in far more hours than the air conditioner. A normal year brings 159 nights at or below freezing and 6 days over 90°F. Snowfall averages about 56 inches.
| Heating degree days / year | 7,779 |
|---|---|
| Cooling degree days / year | 425 |
| Nights at or below 32°F | 159 |
| Days above 90°F | 6 |
| Average low / high | 35.2°F / 54.3°F |
Green Bay Housing Stock
Half the homes in Green Bay were built before 1971 (Census ACS median), so the typical house is about 55 years old. A lot of these homes are on their second or third system by now. The ductwork is usually original, and leaky joints are common. Green Bay has roughly 25,000 owner-occupied homes, or 55.9% of households. Homes here have a median value of $191,500 and households a median income of $62,546. Those two numbers drive the labor adjustment in our estimate.
Between 2020 and 2025, NOAA's Storm Events Database logged 8 hail days and 21 days with damaging thunderstorm winds in Brown County. The largest hail reported was 2.5 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
- You just finished a remodel
- 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
- How hard it is to reach ducts in the attic or crawlspace
- Sanitizing or mold treatment
- House size and duct layout
For Green Bay we lowered the national figures about 10%, based on local income, home values and climate-based equipment sizing. Get at least three written quotes; real bids can land outside this range.
What the Quote Should Cover
- Inspecting the supply and return ducts
- Cleaning the registers and grilles
- Before-and-after photos
- Cleaning the blower compartment
- Cleaning under negative pressure with a truck or portable vacuum
Wisconsin Permits, Efficiency Rules and Rebates
Wisconsin 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
- Put in a new filter as soon as the cleaning is done.
- Watch out for $99 whole-house deals. They tend to turn into upsells once the crew is inside.
- If the ducts leak, have them sealed during the same visit.
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Air Duct Cleaning Questions from Green Bay Homeowners
How much is air duct cleaning in Green Bay?
Plan on $320 to $720, with most jobs near $540. 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 Green Bay?
Between late spring and early fall. Green Bay averages 159 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 Green Bay
Sources: U.S. Census Bureau ACS 5-year estimates 2019-2023 and 2024 population estimates; NOAA NCEI U.S. Climate Normals 1991-2020, station Green Bay Botanical; NOAA Storm Events Database 2020-2025, Brown County. Prices are our estimates, not contractor quotes. Updated 2026.