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Top-Rated Mold testing and remediation specialists in Onalaska - Updated Nov 2026

Avatar for L.A.D.S. Restoration Western Division
L.A.D.S. Restoration Western Division
5.0(
29
)
Toxicity and Mold - RemovalToxicity and Mold - Removal - For Business

Serving Onalaska, WI and surrounding areas

Approved

In business since 2023

Free estimates

Credit card accepted

Hi there! We are Chris and Danielle Polanco, the owners of L.A.D.S. Western Division. We are a husband and wife duo with a great team who service the entire Western half of WI. We provide services along many scopes of restoration, including water mitigation, mold removal, fire mitigation, hoarding/biohazard clean up, and trauma/crime scene clean up. Along with our affiliates in the Eastern Division, we have over a decade of combined experience in the restoration/construction industry, including insurance adjusting. Our business is faith-based with a strong foundation in our morals; based on integrity, honesty, commitment and compassion. Each job, big or small, is important to us. L.A.D.S. stands for Life After Disaster Strikes

Mold Remediation
Mold Remediation
Water mitigation
Water mitigation
Water mitigation

+12

2 neighbors recently requested a quote
Avatar for DJK Environmental, LLC
DJK Environmental, LLC
4.0(
28
)
Toxicity and Mold - RemovalToxicity and Mold - Removal - For Business

Serving Onalaska, WI and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

"We contacted this company based on the positive reviews. It seems as though that there aren't many companies who want to touch this type of work (so to speak). Or, if they do they are expensive. DJK wasn't much of an exception. They did respond rather quickly when I had first contacted them. They came out and inspected the suspected mold problem area in our bedroom. So finally about 3 weeks later, $1,330.00 and 2 hours of work AND for a 2' x 2' square hole cut out in our bedroom wall. And, they had sprayed a potent biocide chemical that hopefully killed our mold problem! They don't do any mold air quality testing at all. Hence, a lab is involved. DJK will come out in advance and use a moisture meter that is supposed to detect where the moisture sits. Then they zero in on the behind the walled suspect area. That problem was caused by another painting contractor who supposedly did caulk around our windows! Apparently not. Otherwise water wouldn't have seeped in and caused this issue. Oh well, another review and problem for another day. We think it's now gone. And we'll be happier for that part. They charge extra to repair the plaster wall with a drywall (NOT plaster). You'll have to hire someone else to do plaster repair if that is what you want. Don't forget about replacing the possibly contaminated wall insulation that they may take out and dispose of. Then figure either priming and painting it yourself after the plaster has cured. Or, hiring yet another darned contractor. In short, I think DJK does the job ok, but they ain't cheap. We will see."
5 neighbors recently requested a quote
Recommended by78%of homeowners
Avatar for L.A.D.S. Western Division
L.A.D.S. Western Division
5.0(
29
)
Toxicity and Mold - RemovalToxicity and Mold - Removal - For Business

Serving Onalaska, WI and surrounding areas

In business since 2023

Free estimates

Emergency services offered

"Chris & Danielle came with their crew and cleaned the mold in the attic. They also cleaned all the windows and sealed them. Everything looks nice and clean, and they always kept us informed on everything they were doing. They gave us an estimate and even charged less than anticipated! Would highly recommend them for mold removal and clean up."
Work
Work
Work
Work
Work

+5

Response time1 day
Response rate85%
1 neighbors recently requested a quote
Avatar for WI MAIDS
WI MAIDS
4.5(
11
)
Indoor Air Quality TestingMold & Toxic Material TestMold & Toxic Material Test - For Business

Serving Onalaska, WI and surrounding areas

In business since 2002

Free estimates

Emergency services offered

"I had a major water leak at one of my rentals. Honestly, if it was not for WI-MOLD Tom Neal and Brandon I dont know what I would of done. They guided me through the entire process. I am highly allergic to mold and I had it everywhere. Neal was so knowledgeable of it he got it tested ,removed, and retested when done. His crew did the remodeling They did insulation, drywall, painting, floors kitchen and bath. Just look at the photos . Its amazing . Hire them for any project honest trustworthy straight forward no bs. Good people whom understand water damage mold and insurance work. Jen Mi"
WI-Mold
WI-Mold
WI-Mold
WI-Mold
WI-Mold

+9

Response time7 hrs
Recommended by80%of homeowners
AAIR INC
4.8(
19
)
Mold & Toxic Material TestToxicity and Mold - Removal

Serving Onalaska, WI and surrounding areas

In business since 2000

"The serviceman showed me where the problem was and explained what they would do to correct it. He explained their procedure, what the equipment was for and how they would complete the job. He showed me the end results. The carpeting was covered during the process, and vacuumed after the job was completed. I was very pleased with their work. The only problem I noticed after they left was that their equipment put a gouge in the doorway and in the door of the room that they put their venting tube through to the window."
Recommended by72%of homeowners
American Air Improvement Resources, LLC
4.4(
8
)
Mold & Toxic Material TestToxicity and Mold - Removal

Serving Onalaska, WI and surrounding areas

In business since 2006

Free estimates

"I was impressed with the extent of knowledge that the tech exhibited upon his first visit. He was concerned and as interested in knowing the source of my problem as I was. He had a very quick understanding of what my needs were. I believe that he had the most reasonable explanation for the cause of the mold and more importantly, his company was going to handle it in the manner that I thought was safest in every way for me and my household. His explanation seemed to stem from experience and I was confident that my health was protected while doing this mold removal process. I appreciated not being scared into doing this removal."
Recommended by100%of homeowners
Avatar for American Home Shield – Home Warranty
American Home Shield – Home Warranty
3.5(
5,689
)
Dry-rot, Water or Pest Damage - Major Repair

Serving Onalaska, WI and surrounding areas

In business since 1971

Credit card accepted

"AHS is ok. They cover repairs of most everything under the roof of your house. The companies that contract with them are not always the best. You call AHS with the issue, they send a fax to the repair company and give you the contact info. If they don't contact you within 24 hours, you call them. Sometimes they answer, sometimes they don't. When they arrive (usually three days or so later), they service the item. if it has issues within the 90 days, you call AHS again, they are sent out with no charge. If the serviceman decides the unit is unrepairable, AHS will allow you to choose a replacement from their listing (usually not as good as what you have) they will install and remove your old item, or give you wholesale amount to buy and install your own. Prices vary on what you want covered and what you want the copay to be, plus where you live. For me it is 49.99 per month with a 75.00 time of service order. You can have more than one item serviced at the same time under the same fee. If you have a SEAR product the repair guys are great. Not that wild about the other ones they send out. But it is a big savings compared to calling someone on your own. The cost of service is only the 75.00 copay."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+2

Recommended by65%of homeowners
Microbe Guard
1.0(
1
)
Mold & Toxic Material TestToxicity and Mold - Removal

Serving Onalaska, WI and surrounding areas

In business since 2004

Microbe Guard of Western Wisconsin, LLC has been successfully completing mold remediation projects since 2004; we offer a professional and experienced approach when handling microbial remediation projects. There are thousands of types of mold that occur naturally in our environment. Most are harmless, some cause allergic reactions and others can be toxic enough to create severe health problems in some individuals. Microbe Guard of Western Wisconsin, LLC will help you determine the mold types and concentration levels in your home or workplace with our state of the art testing equipment. The remediation process includes identifying mold, locating and eliminating the source of moisture intrusion, properly containing the affected area from the rest of your home, running HEPA "air scrubber machines," removing and encapsulating mold, and properly disposing of all contaminated materials. Indoor Air Quality is of the most importance to you and your family. Contaminants such as mold can create serious health issues. Microbe Guard of Western Wisconsin, LLC will manage your project from beginning to end with our knowledge and expertise. We look forward to working with you.

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Mold Testing and Remediation FAQs, answered by experts

A mold inspection costs an average of $660, with a typical range between $300 and $1,025. However, costs can be as low as $150 or as high as $2,800 depending on several factors. These include the size of your home, the type of mold, the extent and accessibility of the affected area, your location, and the number and type of samples required. Hard-to-reach areas like air ducts, crawl spaces, and wall cavities can increase the cost. Specific tests have different prices; for example, swab testing typically costs $200 to $300 per area, while more extensive air testing can range from $250 to $700. A thorough inspection is crucial for determining the scope of the problem and identifying the best remediation method.

Many peel-and-stick wallpapers aren’t moisture-resistant, so if you install them in high-humidity rooms, mold can grow behind the wallpaper. It’s best to reserve peel-and-stick wallpaper for bedrooms, living rooms, and other rooms with lower humidity levels. Not only does this minimize the risk of mold growth, but it also keeps the wallpaper from bubbling or peeling.

Neglecting mold growth on wood can result in various issues that deteriorate its appearance and jeopardize its structural stability. The mold's ability to multiply and expand can disintegrate the fibers of the wood, weakening it further. In addition, the allergenic spores and mycotoxins released by mold can pose health hazards through inhalation or contact. Ignoring the mold's presence allows it to thrive, increasing the likelihood of spreading to other surfaces and requiring extensive and expensive measures to control in the future. Addressing mold on wood promptly is crucial to preserving its condition and safeguarding the health of those around it.

It is safe to remove old linoleum, but it may require the help of a specialist due to the risk of asbestos in the material. Before you cut into linoleum or try to peel it up, have it tested for asbestos. If it tests positive, professionals will need to remove it to prevent the risk of health issues from airborne toxic particles. If it’s asbestos-free, DIY removal is possible and safe.

The symptoms of mold exposure for sensitive parties include a skin rash, runny nose, coughing, sore throat, burning eyes, and even more severe allergic reactions. If you notice signs of mold exposure, contact a medical professional right away.

The Onalaska, WI homeowners’ guide to mold testing and remediation services

From average costs to expert advice, get all the answers you need to get your job done.