Mold remediation companies in Wisconsin

Kenosha, WI / 4.8 rating from 1625 reviews / Water damage restoration service

Best for: Kenosha and Chicago metro homeowners who need mold remediation handled alongside the plumbing or water damage that caused it, with 24/7 dispatch and no after-hours surcharge across a 13-county service area.

Service area: Headquartered in Kenosha, Wisconsin at 5115 7th Ave. The claimed service area is massive: Kenosha, Racine, and Walworth counties in Wisconsin; Cook, DuPage, Lake, Will, Kane, McHenry, Grundy, DeKalb, and Kendall counties in Illinois; and Lake and Porter counties in Indiana. The service areas page lists well over 200 individual cities from Waukegan to Joliet to Valparaiso. That is a geographic footprint stretching roughly 100 miles north to south and 80 miles east to west. Confirm response time for addresses outside the Kenosha-Racine and Chicago core.

Review snapshot: Daniel, Robert Welch, Nick, Tyler, and Lenord draw steady praise for fast arrivals and clear explanations, but pricing is the dominant complaint — multiple 4-star reviewers call costs unjustifiably high, and one 1-star reviewer reports paying $505 for a drain that stayed clogged, with 9 one-star reviews across 1,625 total at 4.8 stars.

Waukesha, WI / 4.7 rating from 740 reviews / Water damage restoration service

Best for: Southeast Wisconsin homeowners and commercial property managers dealing with water damage, fire, or mold who want a large franchise operation with 24/7 response, in-house reconstruction, and insurance claims support.

Service area: Headquartered in Waukesha, WI with a second office in Appleton, WI and a third in Waukegan, IL. The southeast Wisconsin territory covers Milwaukee, Waukesha, Racine, Kenosha, West Allis, Wauwatosa, New Berlin, Brookfield, Greenfield, Franklin, Oak Creek, South Milwaukee, Cudahy, and West Bend. The Fox Valley territory includes Appleton, Oshkosh, Fond du Lac, Neenah, Green Bay, Sheboygan, Manitowoc, and Menasha. They also list northern Illinois coverage from the Waukegan office.

Review snapshot: Justin, Mike, Bradlee, and Derek draw consistent praise for fast response and clear communication, but 5 reviews at 1-2 stars across 740 total flag callback failures and reconstruction quality problems that dragged simple projects into weeks-long ordeals.

Cottage Grove, WI / 4.9 rating from 678 reviews / Water damage restoration service

Best for: South Central Wisconsin homeowners dealing with mold after water damage who want a single company to handle cleanup through full reconstruction, backed by a 678-review track record.

Service area: Headquartered in Cottage Grove, WI, serving South Central Wisconsin. Reviews confirm work in the Madison metro area, Janesville, and Rock County. The franchise covers Dane County and surrounding areas, with the ability to coordinate with regional Paul Davis teams for overflow during major storm events.

Review snapshot: Roger, Greg, and Jason draw consistent praise for responsiveness and clear communication. But 3 of 4 recent complaints involve office-side failures — a lost estimate, a dismissive phone call, and sloppy finish work — across 678 reviews at 4.9 stars.

Madison, WI / 4.8 rating from 387 reviews / Water damage restoration service

Best for: Madison-area homeowners dealing with water damage or mold that followed a leak, especially those who want a restoration company that handles mitigation through rebuild under one roof.

Service area: Headquarters in Madison, Wisconsin with a second office in Plymouth, Minnesota. Reviewers confirm work across southern Wisconsin including Janesville. The company claims to serve the broader Midwest, but the review history is concentrated in the Madison metro area and Dane County.

Review snapshot: Rod Israeli, Brian, and Carson draw consistent praise for fast response and clear communication, but 15 negative reviews across 387 total at 4.8 stars reveal a pattern of billing disputes and poor follow-through once projects move from mitigation to restoration.

Weston, WI / 4.8 rating from 332 reviews / Water damage restoration service

Best for: Central and Northern Wisconsin homeowners dealing with mold after water damage who want a single company to handle extraction, drying, and mold removal from two offices in Weston and Rhinelander.

Service area: Headquartered in Weston, Wisconsin, with a second office in Rhinelander. K-tech lists 19 counties across Central and Northern Wisconsin: Marathon, Wood, Portage, Clark, Brown, Oneida, Langlade, Lincoln, Taylor, Kewaunee, Vilas, Waupaca, Shawano, Outagamie, and Door counties, plus the cities of Wausau, Stevens Point, Marshfield, and Weston. That is a wide territory for two offices, spanning roughly from Green Bay to Minocqua.

Review snapshot: Kris, Chris, and Craig draw consistent praise for fast response and clear communication across 332 reviews. But the sole recent 1-star review (1 of 332) had no text and no owner response, leaving the complaint unaddressed.

Wausau, WI / 4.8 rating from 306 reviews / Water damage restoration service

Best for: Wausau-area homeowners and businesses dealing with water damage that has led to mold growth, where 24/7 emergency response and in-house reconstruction matter.

Service area: Headquartered in Wausau, Wisconsin. Serves Central Wisconsin including Marshfield, Stevens Point, Mosinee, Weston, Wisconsin Rapids, Merrill, Minocqua, Eagle River, Rhinelander, Antigo, Medford, and about 20 smaller communities. Also lists Green Bay, Appleton, and surrounding areas — a reach of roughly 150 miles from their Wausau base.

Review snapshot: Dylan and Tim draw consistent praise for carpet, duct, and tile work, and Julia keeps scheduling smooth. But 2 one-star reviews across 306 total flag billing disputes on fire-loss inventory work.

Two Rivers, WI / 4.9 rating from 201 reviews / Water damage restoration service

Best for: Manitowoc County homeowners dealing with water damage or mold who want a single contractor to handle testing, remediation, structural drying, and rebuild under one roof with 24/7 emergency response.

Service area: Headquartered in Two Rivers, Wisconsin. Serves Manitowoc County, Sheboygan County, Brown County, Calumet County, and Kewaunee County. Specific cities include Two Rivers, Manitowoc, Sheboygan, Green Bay, De Pere, Kewaunee, Plymouth, Kiel, Mishicot, Maribel, Reedsville, Cleveland, Kohler, Howards Grove, and Sheboygan Falls. The 60-minute emergency response applies within a 30-mile radius of Two Rivers.

Review snapshot: Rigo and Alex draw consistent praise for fast response and clear communication across 201 reviews at 4.9 stars. But 2 recent negatives (1 one-star, 1 two-star) both cite billing disputes and aggressive owner responses when payment disagreements arise.

Cudahy, WI / 4.8 rating from 164 reviews / Water damage restoration service

Best for: Milwaukee-area homeowners dealing with basement flooding or water emergencies who want a locally owned restoration company that also handles mold remediation under one roof.

Service area: Headquartered in Cudahy, Wisconsin. Serves the Milwaukee metro area including South Milwaukee, West Allis, Wauwatosa, Oak Creek, Greenfield, Glendale, Menomonee Falls, Germantown, St. Francis, Waukesha, Brookfield, New Berlin, Racine, and Kenosha. Also claims Northern Illinois coverage including Gurnee, Waukegan, and Zion — confirm response times for locations that far south.

Review snapshot: Levi draws repeated praise for honest assessments and fast response, with Perci and Josh also named frequently for detailed inspections. Zero 1-star reviews found across 164 total reviews at 4.8 stars.

Oshkosh, WI / 4.7 rating from 154 reviews / Water damage restoration service

Best for: Northeast Wisconsin homeowners dealing with mold tied to water damage who want a single company to handle testing, remediation, and full reconstruction under one roof.

Service area: Headquartered in Oshkosh, Wisconsin, with an additional office in Kaukauna. They list 24 Wisconsin counties including Winnebago, Brown, Outagamie, Fond du Lac, Sheboygan, Manitowoc, Calumet, and Waupaca, and name over 130 specific cities. They claim coverage for more than 50% of Wisconsin, though response times will vary significantly outside the Fox Valley corridor.

Review snapshot: Jeff, Craig, and John draw consistent praise for hands-on involvement and honest assessments, sometimes at no charge. But 1 of 3 one-star reviews across 154 total flags an unanswered after-hours emergency line on a holiday weekend.

DeForest, WI / 4.7 rating from 154 reviews / Water damage restoration service

Best for: Madison-area homeowners and commercial property managers dealing with water damage that has led to mold growth, backed by a franchise with 24/7 response and in-house reconstruction.

Service area: Headquartered in DeForest, Wisconsin. Serves the greater Madison area including Fitchburg, Middleton, Waunakee, Stoughton, Oregon, McFarland, Monona, Dunn, Blooming Grove, and Maple Bluff. Reviews confirm work in outlying towns like Lodi, Poynette, Hollendale, Platteville, Cottage Grove, and Sun Prairie, suggesting the actual service radius extends well beyond Dane County.

Review snapshot: Ray, Dave Hoeppner, Jackie, Tyler, and Kevin draw consistent praise for fast response times and clear communication across 154 reviews. But one recent 1-star review with no text leaves its complaint unknown.

Cedarburg, WI / 5 rating from 135 reviews / Water damage restoration service

Best for: Ozaukee County homeowners dealing with water damage or mold who want a single franchise crew to handle demo, remediation, reconstruction, and deep cleaning under one roof.

Service area: Headquartered in Menomonee Falls, WI (Waukesha County), serving Ozaukee County. Specific cities listed include Mequon, Thiensville, Cedarburg, Grafton, Port Washington, Saukville, Belgium, Fredonia, Newburg, and Waubeka. Some website testimonials reference jobs in West Bend (Washington County) and Cudahy (Milwaukee County), suggesting they take jobs beyond Ozaukee County proper.

Review snapshot: Anatol, Ariel, Jose, and Rosalia draw repeated praise across 135 reviews for fast response and thorough cleanup. But with zero negative reviews in the last 18 months, there is no recent complaint data to evaluate.

Green Bay, WI / 4.5 rating from 135 reviews / Water damage restoration service

Best for: Green Bay area homeowners and commercial property managers who need mold remediation bundled with water or fire damage restoration from a multi-location franchise operation with 24/7 availability.

Service area: Headquartered in Ashwaubenon (Green Bay), WI at 3201 Market Street. The website claims direct coverage of Brown, Door, and Kewaunee counties in full, plus communities in Outagamie, Calumet, Marinette, Manitowoc, Oconto, Shawano, and Waupaca counties. Restoration Holdings also operates locations in Appleton, Brookfield, Wausau, Rhinelander, Ashland, Superior, Fond Du Lac, Plover, and Oshkosh. Confirm which office handles your address — the broad footprint means your job could be routed to a different location.

Review snapshot: Diego, Kyle, and Braydon draw repeated praise for politeness and fast response on water and fire jobs. But 6 of 135 reviewers report no-shows, abandoned jobs, and poor communication, with sewage cleanup jobs hit hardest.