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Mold Remediation in Wisconsin

449 zip codes with active providers out of 792 total (56.7% coverage). Ranked #14 of 45 states by avg bid.

State Avg

$150.85

National Avg

$143.28

Coverage

56.7%

vs National

+5.3%

State vs National Average

Wisconsin: $151+5.3% vs National Avg

Dashed line = National Avg ($143)

Mold Remediation Specialist Costs in Wisconsin

Typical cost range: $1,500–$9,000 depending on affected area

Mold inspection and testing$300–$700
Small area remediation (under 100 sq ft)$1,500–$3,500
Large area remediation (attic, basement)$3,000–$9,000
Crawl space mold treatment$2,000–$6,000
Air duct mold cleaning$700–$2,000
Post-remediation clearance testing$200–$500

When to Hire a Mold Remediation Specialist

Emergency service available in most areas

You see visible mold growth larger than 10 square feet or it's spreading behind walls, in the attic, or in HVAC ducts
Family members are experiencing unexplained allergy symptoms, persistent headaches, or respiratory issues that improve when away from home
A home inspector found mold during a real estate transaction and you need professional remediation and clearance documentation
You've had a water leak or flood and smell musty odors even after drying — mold can establish in 24–48 hours after water damage

What to Look For

IICRC (Institute of Inspection Cleaning and Restoration Certification) or ACAC certification — the industry gold standard
A company that performs pre- and post-remediation air quality testing to verify mold levels return to normal
Proper containment using negative air pressure and HEPA filtration to prevent spore spread during removal
They identify and fix the moisture source first — mold always returns if the underlying water problem isn't resolved

Common Mold Remediation Specialist Problems in Wisconsin

Attic mold from inadequate roof ventilation or bathroom exhaust fans venting into the attic instead of outside

Basement and crawl space mold from poor drainage, foundation cracks, or lack of vapor barriers

Bathroom mold behind tile and around tub/shower enclosures where grout has failed and moisture penetrates the wall

Mold inside HVAC ducts that spreads spores throughout the entire house every time the system runs

Hidden mold behind wallpaper, under carpet padding, or inside wall cavities after a slow plumbing leak

Mold in rental properties that landlords have painted over instead of properly remediating

Questions to Ask Before Hiring a Mold Remediation Specialist in Wisconsin

Will you identify and address the moisture source, or just remove the visible mold?

Mold is a symptom of a water problem. If the source isn't fixed, the mold will return — sometimes within weeks. A professional should diagnose the cause before quoting removal.

Do you perform post-remediation verification testing, and who does it?

A third-party post-remediation test proves the air quality is back to normal. Some companies skip this step. Ideally, the testing company is independent from the remediation company.

What containment methods will you use during the work?

Professional remediation requires negative air pressure, HEPA air scrubbers, and physical barriers to prevent cross-contamination. If they don't mention containment, they're not following protocol.

Red Flags When Hiring a Mold Remediation Specialist

  • Claims they can test for mold AND do the remediation — this is a conflict of interest. Testing should be independent
  • Recommends 'mold-killing' paint, encapsulant, or ozone treatments as a standalone solution without removing contaminated materials
  • Uses bleach as their primary treatment method — bleach is ineffective on porous materials where mold roots grow
  • Cannot explain their containment procedures or doesn't use HEPA air scrubbers during removal
  • Quotes a fixed price without inspecting the full extent of the mold growth or testing to identify the species

DIY vs Hiring a Professional Mold Remediation Specialist

You can clean mold from non-porous surfaces (tile, glass, metal) smaller than 10 square feet with soap and water or a borax solution. Never use bleach on porous materials — it kills surface mold but the roots survive. Any mold on drywall, wood framing, insulation, carpet, or in HVAC systems requires professional remediation. Black mold (Stachybotrys) should always be handled by certified professionals due to serious health risks including respiratory damage and neurological symptoms.

Mold Remediation Specialist Safety Tips

  • Never disturb large areas of mold without proper containment — you can release millions of spores into your home's air and make the problem dramatically worse
  • Stachybotrys (toxic black mold) exposure can cause serious respiratory damage, neurological symptoms, and immune suppression — always get professional testing if you suspect it
  • Immunocompromised individuals, children, and elderly people should not be in the home during active mold remediation

Best Time to Hire a Mold Remediation Specialist in Wisconsin

Mold thrives in warm, humid conditions — spring and summer are peak seasons, especially in southeastern and coastal states. Indoor humidity above 60% creates ideal mold conditions. Run dehumidifiers in basements and crawl spaces year-round. After any storm or flooding event, dry affected areas within 24–48 hours to prevent mold growth. Winter brings its own risks: condensation on cold windows and walls, and ice dam moisture penetrating attics.

Mold Remediation Specialist Licensing in Wisconsin

Mold remediation licensing varies widely by state. Some states (TX, FL, LA, MD, VA) require specific mold remediation licenses. Others have no licensing requirements at all. Regardless of state law, always hire companies with IICRC S520 or ACAC certification. Ask for proof of liability insurance with a minimum $1M policy and workers' compensation coverage.

City-by-City Costs (331 cities)

CityAvg BidMax BidMin BidZip Codes
Ashippun$200.00$200.00$200.001
Zenda$200.00$200.00$200.001
Woodworth$200.00$200.00$200.001
Sullivan$200.00$200.00$200.001
Sussex$200.00$200.00$200.001
Trevor$200.00$200.00$200.001
Bristol$200.00$200.00$200.001
Brookfield$200.00$200.00$200.003
Burlington$200.00$200.00$200.001
Wales$200.00$200.00$200.001
Walworth$200.00$200.00$200.001
Waterford$200.00$200.00$200.001
Waukesha$200.00$200.00$200.004
Twin Lakes$200.00$200.00$200.001
Union Grove$200.00$200.00$200.001
Silver Lake$200.00$200.00$200.001
Slinger$200.00$200.00$200.001
Somers$200.00$200.00$200.001
South Milwaukee$200.00$200.00$200.001
Springfield$200.00$200.00$200.001
Cedarburg$200.00$200.00$200.001
Colgate$200.00$200.00$200.001
Big Bend$200.00$200.00$200.001
Sturtevant$200.00$200.00$200.001
Rochester$200.00$200.00$200.001
Rubicon$200.00$200.00$200.001
Saint Francis$200.00$200.00$200.001
Salem$200.00$200.00$200.001
Saukville$200.00$200.00$200.001
Sharon$200.00$200.00$200.001
Racine$200.00$200.00$200.008
Richfield$200.00$200.00$200.001
Pell Lake$200.00$200.00$200.001
Pewaukee$200.00$200.00$200.001
Pleasant Prairie$200.00$200.00$200.001
Port Washington$200.00$200.00$200.001
Powers Lake$200.00$200.00$200.001
Delafield$200.00$200.00$200.001
Delavan$200.00$200.00$200.001
Dousman$200.00$200.00$200.001
Butler$200.00$200.00$200.001
Caledonia$200.00$200.00$200.001
Camp Lake$200.00$200.00$200.001
North Lake$200.00$200.00$200.001
North Prairie$200.00$200.00$200.001
Oak Creek$200.00$200.00$200.001
Oconomowoc$200.00$200.00$200.001
Okauchee$200.00$200.00$200.001
Palmyra$200.00$200.00$200.001
Mukwonago$200.00$200.00$200.001
Muskego$200.00$200.00$200.001
Nashotah$200.00$200.00$200.001
New Berlin$200.00$200.00$200.002
New Munster$200.00$200.00$200.001
Newburg$200.00$200.00$200.001
Elkhorn$200.00$200.00$200.001
Elm Grove$200.00$200.00$200.001
Cudahy$200.00$200.00$200.001
Darien$200.00$200.00$200.001
Menomonee Falls$200.00$200.00$200.002
Mequon$200.00$200.00$200.002
Merton$200.00$200.00$200.001
Milwaukee$200.00$200.00$200.0041
Lyons$200.00$200.00$200.001
Jackson$200.00$200.00$200.001
Jefferson$200.00$200.00$200.001
Kansasville$200.00$200.00$200.001
Kenosha$200.00$200.00$200.005
Lake Geneva$200.00$200.00$200.001
Lannon$200.00$200.00$200.001
Hartland$200.00$200.00$200.001
Franklin$200.00$200.00$200.001
Franksville$200.00$200.00$200.001
Fredonia$200.00$200.00$200.001
Genesee Depot$200.00$200.00$200.001
Genoa City$200.00$200.00$200.001
Germantown$200.00$200.00$200.001
Eagle$200.00$200.00$200.001
East Troy$200.00$200.00$200.001
Helenville$200.00$200.00$200.001
Honey Creek$200.00$200.00$200.001
Hubertus$200.00$200.00$200.001
Ixonia$200.00$200.00$200.001
Grafton$200.00$200.00$200.001
Greendale$200.00$200.00$200.001
Hales Corners$200.00$200.00$200.001
Hartford$200.00$200.00$200.001
Fontana$200.00$200.00$200.001
Bassett$200.00$200.00$200.001
Belgium$200.00$200.00$200.001
Benet Lake$200.00$200.00$200.001
Whitewater$200.00$200.00$200.001
Williams Bay$200.00$200.00$200.001
Wilmot$200.00$200.00$200.001
West Bend$200.00$200.00$200.002
Afton$165.00$165.00$165.001
Beloit$165.00$165.00$165.002
Fort Atkinson$165.00$165.00$165.001
Janesville$165.00$165.00$165.004
Hanover$165.00$165.00$165.001
Milton$165.00$165.00$165.001
Avalon$165.00$165.00$165.001
Clinton$165.00$165.00$165.001
Almond$126.00$126.00$126.001
Westfield$126.00$126.00$126.001
Amherst$126.00$126.00$126.001
Amherst Junction$126.00$126.00$126.001
Aniwa$126.00$126.00$126.001
Wausau$126.00$126.00$126.003
Wautoma$126.00$126.00$126.001
Waupun$126.00$126.00$126.001
Waupaca$126.00$126.00$126.001
Wisconsin Dells$126.00$126.00$126.001
Windsor$126.00$126.00$126.001
Withee$126.00$126.00$126.001
Wisconsin Rapids$126.00$126.00$126.002
Wild Rose$126.00$126.00$126.001
Willard$126.00$126.00$126.001
Belleville$126.00$126.00$126.001
Weyauwega$126.00$126.00$126.001
Beaver Dam$126.00$126.00$126.001
Westboro$126.00$126.00$126.001
Adams$126.00$126.00$126.001
Adell$126.00$126.00$126.001
Fairwater$126.00$126.00$126.001
Fall River$126.00$126.00$126.001
Fond Du Lac$126.00$126.00$126.003
Harshaw$126.00$126.00$126.001
Greenwood$126.00$126.00$126.001
Greenbush$126.00$126.00$126.001
Hancock$126.00$126.00$126.001
Gresham$126.00$126.00$126.001
Grand Marsh$126.00$126.00$126.001
Glenbeulah$126.00$126.00$126.001
Gleason$126.00$126.00$126.001
Irma$126.00$126.00$126.001
Iola$126.00$126.00$126.002
Hustler$126.00$126.00$126.001
Green Valley$126.00$126.00$126.001
Granton$126.00$126.00$126.001
Hewitt$126.00$126.00$126.001
Heafford Junction$126.00$126.00$126.001
Hazelhurst$126.00$126.00$126.001
Elderon$126.00$126.00$126.001
Eland$126.00$126.00$126.001
Edgar$126.00$126.00$126.001
Eden$126.00$126.00$126.001
Doylestown$126.00$126.00$126.001
Gilman$126.00$126.00$126.002
Friendship$126.00$126.00$126.002
Fremont$126.00$126.00$126.001
Hatley$126.00$126.00$126.001
Leopolis$126.00$126.00$126.001
Lake Tomahawk$126.00$126.00$126.001
Humbird$126.00$126.00$126.001
Hingham$126.00$126.00$126.001
Krakow$126.00$126.00$126.001
Lake Mills$126.00$126.00$126.001
Kewaskum$126.00$126.00$126.001
Kohler$126.00$126.00$126.001
Junction City$126.00$126.00$126.001
Johnson Creek$126.00$126.00$126.001
Mazomanie$126.00$126.00$126.001
King$126.00$126.00$126.001
Mattoon$126.00$126.00$126.001
Mather$126.00$126.00$126.001
Marshfield$126.00$126.00$126.003
Marshall$126.00$126.00$126.001
Marion$126.00$126.00$126.001
Marathon$126.00$126.00$126.001
Manawa$126.00$126.00$126.001
Mauston$126.00$126.00$126.001
Malone$126.00$126.00$126.001
Madison$126.00$126.00$126.0035
Lublin$126.00$126.00$126.001
Lyndon Station$126.00$126.00$126.001
Lodi$126.00$126.00$126.001
Mosinee$126.00$126.00$126.001
Morrisonville$126.00$126.00$126.001
Loyal$126.00$126.00$126.001
Monticello$126.00$126.00$126.001
Montello$126.00$126.00$126.001
Minocqua$126.00$126.00$126.001
Milladore$126.00$126.00$126.001
Middleton$126.00$126.00$126.001
Merrill$126.00$126.00$126.001
Albany$126.00$126.00$126.001
Allenton$126.00$126.00$126.001
Dane$126.00$126.00$126.001
Medford$126.00$126.00$126.001
Custer$126.00$126.00$126.001
Curtiss$126.00$126.00$126.001
Columbus$126.00$126.00$126.001
Coloma$126.00$126.00$126.001
Cross Plains$126.00$126.00$126.001
Cottage Grove$126.00$126.00$126.001
Elroy$126.00$126.00$126.001
Elkhart Lake$126.00$126.00$126.001
Eldorado$126.00$126.00$126.001
Mcfarland$126.00$126.00$126.001
Mc Naughton$126.00$126.00$126.001
New Lisbon$126.00$126.00$126.001
Endeavor$126.00$126.00$126.001
Embarrass$126.00$126.00$126.001
Nelsonville$126.00$126.00$126.001
Nekoosa$126.00$126.00$126.001
Neillsville$126.00$126.00$126.001
Necedah$126.00$126.00$126.001
Mount Horeb$126.00$126.00$126.001
Mount Calvary$126.00$126.00$126.001
Pardeeville$126.00$126.00$126.001
Packwaukee$126.00$126.00$126.001
Oxford$126.00$126.00$126.001
Owen$126.00$126.00$126.001
Oregon$126.00$126.00$126.001
Oostburg$126.00$126.00$126.001
Ogdensburg$126.00$126.00$126.001
Oakfield$126.00$126.00$126.001
New Glarus$126.00$126.00$126.001
Neshkoro$126.00$126.00$126.001
Cascade$126.00$126.00$126.001
Caroline$126.00$126.00$126.001
Campbellsport$126.00$126.00$126.001
Camp Douglas$126.00$126.00$126.001
Cambridge$126.00$126.00$126.001
Dorchester$126.00$126.00$126.001
Dodgeville$126.00$126.00$126.002
Deforest$126.00$126.00$126.001
Deerfield$126.00$126.00$126.001
Poynette$126.00$126.00$126.001
Poy Sippi$126.00$126.00$126.001
Portage$126.00$126.00$126.001
Port Edwards$126.00$126.00$126.001
Plymouth$126.00$126.00$126.001
Plover$126.00$126.00$126.001
Plainfield$126.00$126.00$126.001
Pittsville$126.00$126.00$126.001
Pine River$126.00$126.00$126.001
Pelican Lake$126.00$126.00$126.001
Ripon$126.00$126.00$126.001
Rio$126.00$126.00$126.001
Ringle$126.00$126.00$126.001
Ridgeway$126.00$126.00$126.001
Rib Lake$126.00$126.00$126.001
Rhinelander$126.00$126.00$126.001
Reeseville$126.00$126.00$126.001
Redgranite$126.00$126.00$126.001
Readfield$126.00$126.00$126.001
Random Lake$126.00$126.00$126.001
Randolph$126.00$126.00$126.002
Prairie Du Sac$126.00$126.00$126.001
Cecil$126.00$126.00$126.001
Schofield$126.00$126.00$126.001
Pulaski$126.00$126.00$126.001
Sauk City$126.00$126.00$126.001
Scandinavia$126.00$126.00$126.001
Rudolph$126.00$126.00$126.001
Rothschild$126.00$126.00$126.001
Rosholt$126.00$126.00$126.001
Saxeville$126.00$126.00$126.001
Stratford$126.00$126.00$126.001
Stoughton$126.00$126.00$126.001
Stevens Point$126.00$126.00$126.003
Brandon$126.00$126.00$126.001
Bowler$126.00$126.00$126.001
Bonduel$126.00$126.00$126.002
Blue Mounds$126.00$126.00$126.001
Saint Cloud$126.00$126.00$126.001
Blenker$126.00$126.00$126.001
Black Earth$126.00$126.00$126.001
Big Falls$126.00$126.00$126.001
Birnamwood$126.00$126.00$126.001
Colby$126.00$126.00$126.001
Clintonville$126.00$126.00$126.001
Chili$126.00$126.00$126.001
Cedar Grove$126.00$126.00$126.001
Stetsonville$126.00$126.00$126.001
Spencer$126.00$126.00$126.001
Sheboygan Falls$126.00$126.00$126.001
Sheboygan$126.00$126.00$126.003
Shawano$126.00$126.00$126.001
Verona$126.00$126.00$126.001
Van Dyne$126.00$126.00$126.001
Rosendale$126.00$126.00$126.001
Unity$126.00$126.00$126.001
Union Center$126.00$126.00$126.001
Watertown$126.00$126.00$126.002
Waunakee$126.00$126.00$126.001
Waldo$126.00$126.00$126.001
Vesper$126.00$126.00$126.001
Brooklyn$126.00$126.00$126.001
Waterloo$126.00$126.00$126.001
Brodhead$126.00$126.00$126.001
Briggsville$126.00$126.00$126.001
Tripoli$126.00$126.00$126.001
Tomahawk$126.00$126.00$126.001
Tilleda$126.00$126.00$126.001
Tigerton$126.00$126.00$126.001
Three Lakes$126.00$126.00$126.001
Brokaw$126.00$126.00$126.001
Thorp$126.00$126.00$126.001
Sun Prairie$126.00$126.00$126.002
Wyocena$126.00$126.00$126.001
Arkdale$126.00$126.00$126.001
Wonewoc$126.00$126.00$126.001
Wittenberg$126.00$126.00$126.002
Barneveld$126.00$126.00$126.001
Woodruff$126.00$126.00$126.001
Baraboo$126.00$126.00$126.001
Bancroft$126.00$126.00$126.001
Babcock$126.00$126.00$126.001
Auburndale$126.00$126.00$126.001
Athens$126.00$126.00$126.001
Abbotsford$126.00$126.00$126.001
Arpin$126.00$126.00$126.001
Arlington$126.00$126.00$126.001
Orfordville$85.00$85.00$85.001
Edgerton$85.00$85.00$85.001
Footville$85.00$85.00$85.001
Evansville$85.00$85.00$85.001
Roberts$70.00$70.00$70.001
Star Prairie$70.00$70.00$70.001
Somerset$70.00$70.00$70.001
Osceola$70.00$70.00$70.001
River Falls$70.00$70.00$70.001
Prescott$70.00$70.00$70.001
New Richmond$70.00$70.00$70.001
Hammond$70.00$70.00$70.001
Hudson$70.00$70.00$70.001
Houlton$70.00$70.00$70.001
Dresser$70.00$70.00$70.001

Showing 331 of 331 rows

Coverage Gaps

430 zip codes without coverage

These areas in Wisconsin have no active mold remediation providers.

AbramsAlgomaAllouezAlmaAlma centerAlmenaAltoonaAlvinAmbergAntigoAppletonArcadiaArenaArgyleArkansawArmstrong creekAshwaubenonAthelstaneAugustaAvocaBagleyBaileys harborBaldwinBalsam lakeBangorBarnesBarronBarronettBay cityBayfieldBear creekBeaverBeldenvilleBelmontBentonBerlinBirchwoodBlack river fallBlairBlanchardvilleBloomerBloomingtonBlue riverBoscobelBoulder junctionBoycevilleBoydBrantwoodBrillionBrowntown

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Frequently Asked Questions

How much does mold remediation cost in Wisconsin?

The average bid for mold remediation in Wisconsin is $150.85, compared to the national average of $143.28. Prices range from $70 to $200 depending on location. Typical cost range: $1,500–$9,000 depending on affected area.

What cities in Wisconsin have mold remediation coverage?

Wisconsin has mold remediation providers in 331 cities across 449 zip codes, representing 56.7% coverage of the state. Top cities include Ashippun, Zenda, Woodworth, Sullivan, Sussex.

How does Wisconsin compare to the national average for mold remediation?

Wisconsin is 5.3% above the national average for mold remediation. It ranks #14 out of 45 states by average bid.

Are there areas in Wisconsin without mold remediation providers?

Yes, 430 zip codes in Wisconsin currently have no active mold remediation providers. Underserved cities include Abrams, Algoma, Allouez, Alma, Alma center.

When should I hire a mold remediation specialist in Wisconsin?

You see visible mold growth larger than 10 square feet or it's spreading behind walls, in the attic, or in HVAC ducts Emergency service is available in most Wisconsin areas. Mold thrives in warm, humid conditions — spring and summer are peak seasons, especially in southeastern and coastal states.

What should I look for in a mold remediation specialist in Wisconsin?

IICRC (Institute of Inspection Cleaning and Restoration Certification) or ACAC certification — the industry gold standard. A company that performs pre- and post-remediation air quality testing to verify mold levels return to normal. Mold remediation licensing varies widely by state.

Can I do mold remediation work myself instead of hiring a pro?

You can clean mold from non-porous surfaces (tile, glass, metal) smaller than 10 square feet with soap and water or a borax solution. Never use bleach on porous materials — it kills surface mold but the roots survive. Any mold on drywall, wood framing, insulation, carpet, or in HVAC systems requires professional remediation.

What warranty should I expect from a mold remediation specialist in Wisconsin?

Expect a warranty of at least 1 year on remediation work, contingent on the moisture source being resolved. The warranty should cover re-treatment if mold returns in the same area.