Mold testing or inspection in Illinois

Lake Zurich, IL / 4.8 rating from 605 reviews / Water damage restoration service

Best for: Chicago-area homeowners and realtors dealing with mold or persistent odors who want a chemical-free ozone treatment with a written guarantee and same-day or next-day scheduling.

Service area: Headquartered in Lake Zurich, Illinois. Serves the greater Chicago area including Naperville, Schaumburg, Evanston, Palatine, Barrington, Aurora, Elmhurst, Skokie, Wheaton, Des Plaines, Rockford, and surrounding suburbs. Also operates in Indiana, Wisconsin, Texas, Florida, Pennsylvania, New Jersey, and Louisiana — confirm local crew availability for locations outside the Chicago metro.

Review snapshot: Mike, Marco, and Cody draw consistent praise for clear explanations and same-day availability across 605 reviews. But 3 of 6 recent complaints involve deposit refund disputes or finishing quality on restoration work, with 3 one-star reviews out of 605 total.

Addison, IL / 4.8 rating from 239 reviews / Water damage restoration service

Best for: Chicagoland homeowners dealing with basement flooding or attic mold who want a family-owned restoration company that handles water extraction, mold removal, and rebuild under one roof.

Service area: Headquartered in Addison, Illinois (DuPage County). Serves the greater Chicagoland area as their core territory, with claims of coverage extending to Wisconsin and Northwest Indiana. Website tags reference specific suburbs including Warrenville, Elwood, Peotone, Park City, and Rockdale. Confirm crew availability and response time for locations outside DuPage and Cook counties.

Review snapshot: Pat gets consistent praise for fast response and honest pricing, with Kenny, Nini, and Anwar called out by name. But 6 one-star reviews across 239 total reveal disputes over cleanup quality and an owner who argues at length in public responses.

Richton Park, IL / 5 rating from 230 reviews / Environmental consultant

Best for: South suburban Chicago homeowners dealing with attic mold who want below-market pricing from an owner-operator who does the work himself.

Service area: Based in Richton Park, IL. Serves the southern suburbs of Chicago, west and north suburbs, and northwest Indiana. The website does not name specific cities beyond Richton Park, so confirm coverage for your location before booking.

Review snapshot: Jefert draws consistent praise across 230 reviews for same-day availability, clear explanations, and pricing well below competitors. But with zero negatives on record, there is no complaint pattern to weigh.

Winfield, IL / 5 rating from 183 reviews / Water damage restoration service

Best for: DuPage County homeowners dealing with water damage or mold who want a family-owned crew that handles insurance documentation with an average of 200 photos per job.

Service area: Headquartered in Winfield, Illinois. Serves DuPage County extensively, including Wheaton, Naperville, Glen Ellyn, Carol Stream, Lombard, Elmhurst, Downers Grove, and Lisle. Also lists service areas in parts of Kane County (Aurora, Geneva, St. Charles, Elgin), Cook County (Arlington Heights, Schaumburg, Elk Grove Village), and Will County (Bolingbrook). The 60+ city list is very broad for a family-owned operation.

Review snapshot: Peter draws repeated praise for honest assessments, clear communication, and fast turnaround on water damage jobs. But with zero negative reviews across 183 ratings at 5.0 stars, there are no complaints to weigh.

Quincy, IL / 5 rating from 121 reviews / Water damage restoration service

Best for: Quincy and Tri-State area homeowners dealing with mold tied to water damage who want an independent, owner-operated restoration company with 24/7 response and a 5.0 Google rating across 121 reviews.

Service area: Headquartered at 3120 N 12th St, Quincy, IL, with a second office in Burlington, IA. Serves a 75-mile radius covering Quincy, Hannibal (MO), Macomb (IL), Burlington (IA), Fort Madison (IA), Kirksville (MO), Keokuk (IA), Rushville (IL), Pittsfield (IL), and Palmyra (MO). Reviews confirm work in Pittsfield and for a property an hour from Quincy.

Review snapshot: Jeff, Shon, Austin, and Kaylin draw consistent praise across 121 reviews for fast response times and honest assessments, with zero complaints at 3 stars or below in the last 18 months.

Colona, IL / 4.3 rating from 118 reviews / Water damage restoration service

Best for: Quad Cities homeowners and commercial property owners dealing with mold tied to water or fire damage who want a single company handling the full restoration arc from mitigation through rebuild.

Service area: Werner Restoration is headquartered in Colona, Illinois, and serves the Quad Cities metro area spanning both Illinois and Iowa. Specific cities listed include Davenport, Bettendorf, Clinton, DeWitt, Eldridge, and Muscatine in Iowa, and Moline, East Moline, Rock Island, Silvis, Geneseo, Galesburg, Aledo, Rock Falls, and Sterling in Illinois. One church rebuild review came from Streator, Illinois, roughly 100 miles east, suggesting they take on projects beyond their core footprint for larger jobs.

Review snapshot: James, Jennifer, and Grant draw consistent praise for communication and honesty, but 6 one-star reviews across 118 total flag slow rebuild timelines, surprise charges, and unresponsive management.

Chicago, IL / 5 rating from 93 reviews / Water damage restoration service

Best for: Chicago-area homeowners dealing with mold or water damage who want an owner-operated, veteran-owned firm that coordinates testing, remediation, and insurance in one call.

Service area: Based in the Chicago, Illinois metro area with a BBB listing in Naperville. Serves Chicago proper and western suburbs including Naperville, Aurora, Schaumburg, Joliet, Elgin, Downers Grove, Elmhurst, Evanston, Arlington Heights, Mount Prospect, Oak Brook, Hinsdale, Bolingbrook, Plainfield, Wheaton, Glen Ellyn, Lombard, Hoffman Estates, and Park Ridge. That is a wide footprint — over 20 named suburbs across the Chicagoland region.

Review snapshot: Mike draws consistent praise across 93 reviews for same-day responsiveness and honest assessments; Kevin and Adrian get named for field work quality. No 1-star reviews exist in the last 18 months.

Maryville, IL / 5 rating from 84 reviews / Water damage restoration service

Best for: St. Louis Metro East homeowners dealing with water damage that has led to mold, where a single crew can handle extraction, remediation, and reconstruction under one contract.

Service area: RCC Restoration is headquartered in Maryville, Illinois. They list specific service cities of Edwardsville, Troy, Collinsville, Fairview Heights, Belleville, Glen Carbon, and Swansea — all on the Illinois side of the St. Louis metro. The website claims coverage of the "entire St. Louis metro area" including Missouri, but named cities and the company address are all in the Metro East Illinois corridor. At least one review confirms they traveled to Florida for hurricane work, but routine service appears concentrated in the Illinois side.

Review snapshot: Tyler, Rachel, and Nate draw repeated praise across 84 reviews for fast emergency response and clear communication, with zero complaints at 3 stars or below in the last 18 months.

Addison, IL / 4.9 rating from 82 reviews / Water damage restoration service

Best for: DuPage County and Chicago west suburb homeowners dealing with attic mold or post-water-damage situations who want an owner-operated franchise using EPA-registered enzyme treatments and third-party post-treatment testing.

Service area: Headquartered in Addison, Illinois, with the website branded under Naperville. They serve the Chicago western suburbs including Naperville, Glen Ellyn, Aurora, Bolingbrook, Downers Grove, Carol Stream, Glendale Heights, Lisle, Wheaton, Bloomingdale, Lombard, Plainfield, and Romeoville. Reviewers mention locations in Winfield and Carol Stream, confirming at least some of the DuPage County coverage.

Review snapshot: Jim Blandi draws consistent praise across 82 reviews for his responsiveness, willingness to educate homeowners, and free initial guidance. But the single 1-star review (1 of 82) has no text, so the specific concern is unknown.

Chicago, IL / 5 rating from 43 reviews / Water damage restoration service

Best for: Chicago North Side homeowners in Wicker Park, Bucktown, or Lakeview dealing with mold in older homes, especially brownstones and vintage buildings with recurring moisture problems.

Service area: Based in Chicago, Illinois at 3521 N Oconto Ave. Serves Chicago North Side neighborhoods including Wicker Park, Bucktown, Lakeview, Lincoln Park, Old Town, Gold Coast, Logan Square, West Town, Roscoe Village, Edgewater, and Streeterville. Also lists Evanston, Oak Park, and Skokie on their service area page.

Review snapshot: Max and Robert draw repeat praise for on-time arrivals, clear explanations, and efficient work across 43 reviews at a perfect 5.0 stars, with zero complaints in the last 18 months.

Gilberts, IL / 4.1 rating from 42 reviews / Water damage restoration service

Best for: Gilberts-area homeowners dealing with water damage that has led to mold, where having one company handle extraction, drying, remediation, and reconstruction under a single insurance claim simplifies the process.

Service area: First Priority Restoration is headquartered in Gilberts, Illinois, with a second location in Odessa, Florida. Their contact page describes serving homeowners and businesses across the Midwest and Florida. For the Illinois location, expect service in the northwest Chicago suburbs and surrounding Kane County area. Confirm coverage for your specific city before booking.

Review snapshot: Lou Falco and Mike draw repeat praise for communication and follow-through, but 3 one-star reviews out of 42 at 4.1 stars cite unfinished work, missed deadlines, and code-quality concerns on reconstruction jobs.

Rockford, IL / 5 rating from 40 reviews / Water damage restoration service

Best for: Rockford-area homeowners dealing with water damage and secondary mold who want a single crew to handle extraction, structural drying, and remediation under one contract.

Service area: Alpha Restoration is headquartered in Rockford, IL. They serve Loves Park, Machesney Park, Belvidere, Cherry Valley, and Freeport in Illinois, and list Janesville and Beloit across the Wisconsin border. Freeport is about 30 miles from Rockford, and Janesville is roughly 35 miles north, so response times to those outlying areas may be longer.

Review snapshot: Micheal draws praise for dependable, efficient work, and reviewers like scott doescher and La Fawnduh describe a crew that exceeds expectations. But 40 reviews with zero negatives and mostly no written text makes the feedback hard to evaluate deeply (0 complaints across 40 reviews at 5.0★).

Carol Stream, IL / 5 rating from 32 reviews / Water damage restoration service

Best for: Carol Stream and DuPage County homeowners dealing with water damage that has turned into a mold problem, handled by a locally owned restoration crew with a 5.0 Google rating across 32 reviews.

Service area: Based in Carol Stream, IL (200 Easy St B). Serves DuPage County communities including Glendale Heights, Wheaton, Winfield, West Chicago, Bloomingdale, Glen Ellyn, Bartlett, Roselle, Hanover Park, Lombard, Villa Park, and Addison. Claims to cover "all of Chicagoland," which is a broad area from a single Carol Stream location — confirm response time for addresses outside DuPage County.

Review snapshot: Jacky draws the most praise for navigating insurance fights and keeping homeowners updated, with Jesus and Freddy called out for careful fieldwork. But zero complaints exist — 0 negatives across 32 reviews at 5.0 stars — so there is no counterweight to test those claims against.

St. Charles, IL / 4.9 rating from 29 reviews / Water damage restoration service

Best for: Kane County homeowners dealing with water damage or basement flooding who want a single company to handle mitigation, mold work, and reconstruction under one roof.

Service area: Precision Restoration is headquartered in St. Charles, IL 60174, in Kane County. The website claims service across the Chicagoland area, though reviews cluster around Kane County communities. Confirm response time for locations outside the immediate St. Charles area.

Review snapshot: Mike draws consistent praise for fast response times and clear explanations, with Luigi and Javier noted for courteous fieldwork. But 1 of 29 reviewers at 4.9 stars felt the free inspection was too dismissive of their concern.

Arlington Heights, IL / 5 rating from 26 reviews / Water damage restoration service

Best for: Barrington and northwest suburban Chicagoland homeowners who want a single firm to handle mold inspection, remediation, and water damage restoration with 24-hour emergency response.

Service area: Indoor Air Repair is headquartered in Barrington, IL. They list service pages for Arlington Heights, Barrington, Chicago, Lake Forest, and Palatine. The website broadly claims Chicagoland coverage, though their office location and review base center on the northwest suburbs.

Review snapshot: Carol and Josh draw consistent praise for clear communication and flexible scheduling across 26 reviews at 5.0 stars, with zero complaints in the last 18 months.

Romeoville, IL / 4.5 rating from 26 reviews / Water damage restoration service

Best for: Romeoville and Northern Will County homeowners dealing with water damage or mold after a leak or flood, backed by a veteran-owned franchise with insurance adjuster experience.

Service area: Headquartered in Romeoville, Illinois. Serves Bolingbrook, Lockport, Crest Hill, Joliet, Plainfield, Aurora, and surrounding Northern Will County communities. The website also lists Crystal Lawns, Fairmont, Lily Cache, and Ridgewood as service areas.

Review snapshot: Stephen Sherwood draws consistent praise for responsiveness, fair pricing, and hands-on involvement across 26 reviews. But 1 one-star review out of 26 at 4.5 stars describes a painting job with cracked drywall and color mismatch.

Mt Prospect, IL / 5 rating from 23 reviews / Water damage restoration service

Best for: Mount Prospect and North Des Plaines homeowners dealing with water damage that has led to mold, handled by a father-son SERVPRO franchise team reviewers consistently name by name.

Service area: Based in Mount Prospect, Illinois, serving Mount Prospect and North Des Plaines. The SERVPRO franchise territory appears limited to these two communities based on the business name, though specific service boundaries are not detailed on the website.

Review snapshot: Jim and Jason draw praise by name in nearly every review for responsiveness and clear communication, with 0 negative reviews found across 23 total at 5.0 stars.