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

Avatar for Mold Test Company IL
Mold Test Company IL
3.8(
106
)
Mold & Toxic Material TestIndoor Air Quality TestingMold & Toxic Material Test - For Business

Serving Sheldon, IL and surrounding areas

Approved

In business since 2008

Emergency services offered

Small jobs welcome

"My review is tiered because the overall service seems to run on tiers. The technician was great. Very personable and professional. 5 stars for his work. Your tests get sent to the lab. The lab explains the results and recommends a company for a DIY solution. This is where things start to fall apart. The company you get referred to has abysmal reviews and the sales pitch feels extremely predatory. That taints my opinion of the lab results which would be teamed up with a business they probably shouldn't recommend. We're planning on either an independent company locally to get a quote from for any remediations we will take or even see what home depot has to offer. In any event please read the reviews of BioCide, the company they will recommend you use. We're still not sure we even have a real problem if they are working together."
Mold Inspection
Mold Inspection
Mold Inspection
Mold Inspection
Mold Inspection

+78

Response time1 day
273 neighbors recently requested a quote
Recommended by80%of homeowners
Avatar for Environmental Services Corp
Environmental Services Corp
4.9(
70
)
Toxicity and Mold - RemovalToxicity and Mold - Removal - For Business

Serving Sheldon, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Emergency services offered

"When I went looking for flooring at a local store, the man said there was a good chance the tiles and glue were asbestos. My research indicated I could just cover the floor (encapsulate it) or remediate it. Even though it was expensive, I thought it best to remediate it. I used Angi's which is what I ALWAYS do and looked up service providers. I called a couple of them and got prices. Environmental was not the cheapest, but Maximus made me feel comfortable. He not only reviewed what needed to be done in the basement, he advised me about other things, as well. I felt like he really knew what he was doing, and he spent time with me. He gave me options, and I think he went above and beyond."
Vermiculite insulation in attic
Asbestos Floor tile
Asbestos transite siding removal
Asbestos pipe
Insulation removal
Enclosure for asbestos removal

+56

Response time1 day
Response rate100%
Recommended by79%of homeowners
Avatar for Guardian Preservation Services, Inc.
Guardian Preservation Services, Inc.
3.9(
16
)
Toxicity and Mold - RemovalToxicity and Mold - Removal - For Business

Serving Sheldon, IL and surrounding areas

In business since 2005

Emergency services offered

Warranties offered

"The work was completed12/17/10. I sent payment shortly thereafter. To date I have not received the post air sample results, copy of guarantee or any acknowledgment from from Guardian. I called Candy Harris and have no return call from her. I know it is the holidays but I still deserve some contact from calls and payment. I am going to attempt to contact them today. I am trying to refinance my home and this lack of communication is slowing the process beyond the deadline set by State Farm. I receive daily communication from State Farm and am upset I'm getting nothing from the people who did the work. I have questions that go unanswered"
 Mold on Wall
Mold in the Kitchen
In the Attic
Attic
Between the attic joists

+1

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 Sheldon, IL 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
Avatar for Green Earth Enterprises Inc
Green Earth Enterprises Inc
4.7(
7
)
Dry-rot, Water or Pest Damage - Major RepairIndoor Air Quality TestingMold & Toxic Material Test+3 more

Serving Sheldon, IL and surrounding areas

In business since 2009

Free estimates

Emergency services offered

"I hired the company to do a make ready [clean up & prep] on a single apartment in a building which I own in the  town where I live. I needed the property to be cleaned up so I could rent it again.  I have been a landlord for over 20 years & hadn't found a vacated property in such a mess in all my years. They did the complete interior clean-up which took about five hours. And, the complete prep of the property. they took out all the trash & junk, and cleaned up all debris left in the yard. They did such a great job with that I decided to use them for the yard maintenance also. They cleaned all my flowerbeds & got them ready for spring, placed mulch & trimmed the shrubs and flowering trees. On the inside they made everything look brand new! Cleaning the walls, painting, cleaned the carpets & stripped & polished the wood floors...making them look brand new. The appliances that stayed were cleaned inside & out. They even remembered to get all the light fixtures clean for me. Dusted all window seals & doorways. Shine mopped all they tile floors. To top it all off they even gave the bathrooms a fresh clean look by putting a new caulk seal around the tubs, sinks & shower...which gave the bathrooms a fresh face. All in all I found it to be a very stress free pleasant experience. And, I will definitely call on them for the next project because if they could do so well with a nightmare like that I'm sure the less difficult will be equally affordable and easily handled. Everything just looked so nice when they were finished. Thanks, Green Earth
"
Recommended by71%of homeowners
Avatar for A-Reliable Restoration
A-Reliable Restoration
5.0(
1
)
Dry-rot, Water or Pest Damage - Major Repair

Serving Sheldon, IL and surrounding areas

In business since 2006

Free estimates

Emergency services offered

At A-Reliable Restoration, we take great pride in providing quality work in a prompt and professional manner. With over 10 years of experience, we have the knowledge and skills that will guarantee customer satisfaction! We offer 24 hour emergency services! Please call us today for a free in home estimate, and ask us about our weekly service!

Response time3 hrs
Recommended by100%of homeowners
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Mold Testing and Remediation FAQs, answered by experts

Pressure-treated wood offers some protection from the elements but doesn’t protect against mold. However, if you spot mold growing on pressure-treated wood, it doesn’t indicate rot or an interior fungal infection—the treatment process ensures that the mold stays on the exterior. Keep the wood dry, but if you spot some mold, remove it immediately and clean the area.

Before you start removing mold, turn off the furnace. Clean away any visible mold from accessible areas using a mixture of water and mild detergent. Change air filters and check for moisture sources like leaks. If the problem persists or it's widespread, hire a local HVAC company for professional cleaning.

Mildew starts as a tiny spot, but if left untreated, it can severely damage your home as well as cause life-threatening health issues. Mildew eats away materials like wood and drywall and if left untreated can destroy entire walls and buildings. Mold sickness is almost a guarantee if you don’t tackle this problem as soon as it rears its head.

While a professional can always help, there are some common plumbing culprits you can check yourself to see if you can find the sewer gas smell. For example, you should check your water traps, sometimes called P-traps and S-traps, which are located under sink, shower, and laundry drains. The wax ring beneath the base of your toilet, which creates a watertight seal with the plumbing, could also have gone bad.

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.

The Sheldon, IL 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.