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Find Mold & toxic material testers in Oswego

Avatar for Mold Test Company IL
Mold Test Company IL
4.1(
89
)

Serving Oswego, IL and surrounding areas

Approved

In business since 2008

Emergency services offered

Small jobs welcome

"I love the quality of service. First call I made to Mold Test told me I was working with the right company. Reid who made all things come together. to the home inspector. Very informative on what they are doing and why. I will refer Mold Test Co. to all my friends ."
Mold Inspection
Mold Inspection
Mold Inspection
Mold Inspection
Mold Inspection

+78

Response time1 day
258 neighbors recently requested a quote
Recommended by80%of homeowners
Avatar for Environmental Services Corp
Environmental Services Corp
5.0(
61
)

Serving Oswego, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Emergency services offered

"Everything went great. Sandra took care of every thing. Came the same day I called and did the testing and removal was done 2 days later. I would definitely use this company again if needed"
Vermiculite insulation in attic
Asbestos Floor tile
Asbestos transite siding removal
Asbestos pipe
Insulation removal
Enclosure for asbestos removal

+56

Response time1 day
4 neighbors recently requested a quote
Recommended by77%of homeowners
Avatar for Green Home Solutions - Chicago West Suburbs
Green Home Solutions - Chicago West Suburbs
4.9(
31
)

Serving Oswego, IL and surrounding areas

Approved

In business since 2020

Emergency services offered

Warranties offered

"I would be remiss if I didn't take the time to write a review for Green Home Solutions. I was in a total quandary when I spotted black mold on a baseboard in one of our bedrooms. I knew immediately that we had to have this checked out since my wife uses that room a lot when I snore. Not knowing who to call, I went on a neighborhood website and found the info for Green Home. I immediately called and was in touch with Autumn and then Jim within one hour. We set up a testing meeting and Jim was there at the exact time and was ready to go. After some pleasantries (and he is a friendly guy) he got to work checking out our entire home and that bedroom in particular. He used very high-tech equipment and pinpointed the spot with the mold. We determined that the window on that wall had rotted seals and was surely the source of water getting in. Jim left and within 2 days I had the complete report of what he found and a detailed report on the remediation. I quickly okayed the project and we had a date the next week for work to begin. Again, Jim and his assistant were right on time and set everything up to begin the remediation process. Let me add, at this point, that they set everything up to cause the least amount of mess and dust to any other part of the house. They got to work and within that day had the wall out and identified the mold and its source. They also found some mold in the attic and identified those sources as defective vents from bathrooms. Jimâ s friend Dean, a roofer, identified those problems and will be remediating those issues. After the entire process of removal was over I still had some questions and Jim came out again the next day with a new HEPA unit and helped me clean dust from the room. A week later his wife, Autumn, was out to do a final check of mold levels in the bedroom and attic. We are now in the clear (no pun intended). Being a senior citizen I deal with a lot of home repair people and Jim Blandi is one of the best, nicest and most professional company owners you will deal with. GHS gets my 100% endorsement. Jim Sims"
Damage wood floors with mold
Crawlspace Encapsulation
Work Fleet
Work Fleet
Work Fleet

+16

Response time3 hrs
Response rate95%
Recommended by90%of homeowners
Avatar for Bluestone Environmental Inc
Bluestone Environmental Inc
4.9(
180
)

Serving Oswego, IL and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"Bluestone was very professional and prompt. We found a small amount of unknown insulation material when demoing a garage man door. Worried it might be asbestos, we called bluestone to come test it/provide a quote for removal. Ron came out and after inspecting it told me he would test it if we wanted him to but that he was 99% sure it was just fiberglass insulation based on a visual inspection and the age of the garage. He gave us tips on removing it ourselves. We will definitely call bluestone again if we discover anything else."
Estimator
Response time1 day
Response rate91%
19 neighbors recently requested a quote
Avatar for Owens & Sons Restoration
Owens & Sons Restoration
4.9(
7
)

Serving Oswego, IL and surrounding areas

Approved

In business since 2020

Emergency services offered

Warranties offered

"Owens & Sons Restoration were spot on with their mold remediation in my basement. The process from start to finish was straightforward, fair and exact. I highly recommend their services! "
 Owens & Sons Restoration
Attic Mold Remediation
Attic Mold Remediation
Attic Mold Remediation
Attic Mold Remediation

+16

49 neighbors recently requested a quote
Avatar for Green Home Solutions - Chicago West Suburbs
Green Home Solutions - Chicago West Suburbs
5.0(
1
)

Serving Oswego, IL and surrounding areas

Approved

In business since 2019

Emergency services offered

Warranties offered

Green Home Solutions - Chicago West Suburbs is committed to excellence in every aspect of our business. \n\nGreen Home Solutions - Chicago West Suburbs is committed to excellence in every aspect of our business. Why Choose Green Home Solutions? Here are the advantages of our Indoor Air Quality Services! - Affordable: Typically, we can preserve more of your existing building materials which can reduce costs.- Effective: Our licensed and/or certified representatives determine the source of the mold, mildew or odor problem and treat it. Our product is catalytic, which means it keeps on working.- EPA plant based organic registered Products: We don’t use harsh chemicals. The health and safety of your family is always our goal. The products we use in our services are selected with that in mind. - Fast: We can complete mold remediation in days not months. This is a fraction of the time it usually takes our competitors.\n\n-Effective: 100% Kill Rate for mold, odor and VOC's. \n\n- Happy Customers: 98.8% Customer Satisfaction

Dark mold growth, while common, can cause allergic reactions and various symptoms even when in the attic.
Great project which ultimately lowered the indoor humidity by 20% making it more livable for the family, storage where there was none previously, and much more healthy from and indoor air quality perspective (no stinky bacteria).
Additional Photos
Additional Photos
Additional Photos

+5

Response time8 hrs
Response rate100%
3 neighbors recently requested a quote
Avatar for Moldlab
Moldlab
4.7(
352
)

Serving Oswego, IL and surrounding areas

In business since 2000

Free estimates

Warranties offered

"The company sent a packet with instructions to provide samples from two sites. We returned these in the Priority envelope provided. Within a few days we received an evaluation of the mold. It does not appear to be a serious problem. I would have graded this work higher if the company had provided general guidelines for remediating the problem. We were relieved to find the problem not serious, but would have appreciated more clarity, such as a simple page outlining safe and unsafe do-it-yourself procedures materials materials. (Suggestions I found online, such as whether to use vinegar, bleach, etc., were sometimes confusing, even contradictory.)"
Recommended by89%of homeowners
Mold Inspection Specialists
4.9(
70
)

Serving Oswego, IL and surrounding areas

In business since 2001

Free estimates

Emergency services offered

"If you ever suspect you have toxic mold START the process with a seasoned MOLD professional, Curt.  Do not go with a generic home inspection company. <br /> I was in a situation where we were starting to cycle thru mold testing cycles - it was getting very expensive (at ~ $500 a pop) and we were not getting any guidance about where the source of the mold could be from the testing company - just that the results say there is toxic mold. <br /> Curt was able to guide me  - tell me what most likely happened, what to do / what not to do, and guide the mold remediation so we could be clear that we had cleaned up fully - so we would know if there was an additional source of mold.  As a result of his guidance - we were able to completely clean up all the mold and get out of the cycle of mold testing. <br /> In hindsight, I wish I had known about Curt and would have used him for the MOLD testing because he provided clear guidance about how to handle the situation.  I did not get this from the existing home inspection company that was doing the testing. <br /> As I had already started with an existing home inspection company, it didn't make sense to switch companies at the point we were in the process.  Curt guided me and didn't charge me for his guidance.   <br /> Curt is a true professional and knows his business. It was a pleasure to work with him. <br /> <br />"
Recommended by97%of homeowners
Avatar for Mold Pro Chicago
Mold Pro Chicago
4.7(
115
)

Serving Oswego, IL and surrounding areas

In business since 2004

Free estimates

Emergency services offered

"Great, the company came down within 24 hours and tested area for mold using chemical tests and remediated the area. They were friendly and professional and efficiency diagnosed the problem and are now helping me solve it."
Recommended by88%of homeowners
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FAQs for mold & toxic material test projects in Oswego, IL

Some companies offer a no‑cost phone or video consultation that screens for red flags. If the discussion points to a real issue, the pro will recommend a paid on‑site inspection. The complimentary call clarifies whether you need full testing, but it isn’t a substitute for samples, lab work, or a written report. Always confirm what the free service covers before you schedule.

A standard inspection, which includes basic air and surface samples, takes an average of two hours. If the pro needs to probe hidden spaces, such as wall cavities or ductwork, plan on up to six hours. Extra time allows the inspector to reach tight areas, collect additional samples, and document findings. Lab analysis is a separate process and often adds several business days to the overall timeframe before you receive the full report.

Mold thrives where moisture lingers and air flow is poor. Common hotspots include bathroom walls, kitchen backsplashes, window sills, HVAC vents, fireplaces, crawl spaces, and enclosed attics. Check these areas regularly—especially after leaks or high‑humidity weather—to catch growth early and avoid costly repairs.

Unchecked mold can knock 20% to 37% off a home’s market value because buyers worry about hidden damage and health risks. Even after remediation, visible staining or a history of major moisture issues can still lower offers and prolong the time on the market. Addressing mold quickly protects both your property’s structural integrity and its resale appeal.

The Oswego, IL homeowners’ guide to mold & toxic material tests

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