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Find Mold & toxic material testers in Ottawa

Avatar for Great Environmental, Inc.

Great Environmental, Inc.

5.00(
42
)
•Approved Pro

Great Environmental, Inc.

5.00(
42
)
•Approved Pro
Customers say: Quality work
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
20 years of experience

Great Environmental has been helping homeowners and small business owners with their environmental and air quality concerns since 2005. Through our 20+ years in business, we get calls all the time from people who suspect there is “something going on” in their home or business that is making people sick. We would go out and do a standard airborne mold test, and there were dozens of instances where the results came back as normal. Our customers were left paying for a test instead of getting some answers. In these cases, all we were able to tell them is what WASN'T causing their symptoms… until now! Introducing our IAQ Home Survey: - Monitors for 500+ airborne chemicals AND hidden mold growth with a SINGLE AIR SAMPLE! - One test covers up to 2,000 sq. ft. - Identifies chemical pollutants that could make you sick - Predicts sources of the chemicals, whether from the home or its contents Get the peace of mind you are looking for, not just mold test results and no solutions!!

"Excellent! It is a Family owned business. Matt is very personable and explained everything with the whole process. I needed someone right away, and he genuinely seemed like he wanted to help. He fit us in his schedule immediately, even right before Memorial weekend. We got results very quickly, within 2-3 days and we were able to move along closing on our house. I would definitely recommend them as well as the testing for your home."

Patricia H on June 2022

Great Environmental has been helping homeowners and small business owners with their environmental and air quality concerns since 2005. Through our 20+ years in business, we get calls all the time from people who suspect there is “something going on” in their home or business that is making people sick. We would go out and do a standard airborne mold test, and there were dozens of instances where the results came back as normal. Our customers were left paying for a test instead of getting some answers. In these cases, all we were able to tell them is what WASN'T causing their symptoms… until now! Introducing our IAQ Home Survey: - Monitors for 500+ airborne chemicals AND hidden mold growth with a SINGLE AIR SAMPLE! - One test covers up to 2,000 sq. ft. - Identifies chemical pollutants that could make you sick - Predicts sources of the chemicals, whether from the home or its contents Get the peace of mind you are looking for, not just mold test results and no solutions!!

"Excellent! It is a Family owned business. Matt is very personable and explained everything with the whole process. I needed someone right away, and he genuinely seemed like he wanted to help. He fit us in his schedule immediately, even right before Memorial weekend. We got results very quickly, within 2-3 days and we were able to move along closing on our house. I would definitely recommend them as well as the testing for your home."

Patricia H on June 2022

Avatar for Environmental Services Corp

Environmental Services Corp

5.00(
55
)
•Approved Pro

Environmental Services Corp

5.00(
55
)
•Approved Pro
Super Service Award
Customers say: Quick response
166 local quotes requested
5 years of experience

We specialize in Asbestos Testing, Asbestos Removal, Mold Mitigation, Demolition, concrete Epoxy Flooring, Flood Restoration, Cleaning services, and general home repairs. Contact us for a free estimate. With 20 years of experience, we stand out Keeping Your Space Safe.

"The technician was professional, thorough and came prepared and completed the job in a timely manner. I highly recommend this company. "

Darrell M on October 2025

We specialize in Asbestos Testing, Asbestos Removal, Mold Mitigation, Demolition, concrete Epoxy Flooring, Flood Restoration, Cleaning services, and general home repairs. Contact us for a free estimate. With 20 years of experience, we stand out Keeping Your Space Safe.

"The technician was professional, thorough and came prepared and completed the job in a timely manner. I highly recommend this company. "

Darrell M on October 2025

Moldlab

4.74(
352
)

Moldlab

4.74(
352
)
Customers say: True professional
25 years of experience

Mold identification, mold test kits and testing supplies. If you suspect you have a mold problem give us a call toll free and we can walk you through your testing options.

"The self-test product was as expected. The reports require additional research to interpret and understand, so seemed more targeted at professionals."

Jessica H on February 2018

Mold identification, mold test kits and testing supplies. If you suspect you have a mold problem give us a call toll free and we can walk you through your testing options.

"The self-test product was as expected. The reports require additional research to interpret and understand, so seemed more targeted at professionals."

Jessica H on February 2018

Global Plasma Solutions

5.00(
1
)

Global Plasma Solutions

5.00(
1
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Global Plasma Solutions is a manufacturing company that sells air purification systems primarily into the commercial and residential markets. Home owners can benenfit from our systems as they are easily adapted to any HVAC system. Go to www.gpshvac.com to find a certified contractor near you to have one installed within your home.

Global Plasma Solutions is a manufacturing company that sells air purification systems primarily into the commercial and residential markets. Home owners can benenfit from our systems as they are easily adapted to any HVAC system. Go to www.gpshvac.com to find a certified contractor near you to have one installed within your home.

Avatar for Environmental Testing & Research Laboratories, Inc

Environmental Testing & Research Laboratories, Inc

4.85(
347
)

Environmental Testing & Research Laboratories, Inc

4.85(
347
)
Customers say: True professional
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers

ETR Laboratories in an analytic laboratory with a broad range of commercial, industrial and individual clients. We provide analytic services using a wide variety of scientific methods including GC/MS, IC/MS, GIR, NMR and SEM equipment. We can do particle analysis, organic and inorganic chemical analysis and micro analysis on biological and other materials. Private water analysis is our specialty. Award winning. Additional DBA - Environmental Testing & Research Laboratories Inc, ETR Labs, ETR Laboratories.

"as advertised"

Nancy C on July 2018

ETR Laboratories in an analytic laboratory with a broad range of commercial, industrial and individual clients. We provide analytic services using a wide variety of scientific methods including GC/MS, IC/MS, GIR, NMR and SEM equipment. We can do particle analysis, organic and inorganic chemical analysis and micro analysis on biological and other materials. Private water analysis is our specialty. Award winning. Additional DBA - Environmental Testing & Research Laboratories Inc, ETR Labs, ETR Laboratories.

"as advertised"

Nancy C on July 2018

Avatar for GPS

GPS

No reviews yet

GPS

No reviews yet
18 years of experience

GPS offers certified and guaranteed mold remediation, inspections, and prevention. We use a non-toxic process and offer the best prices in th area. Owner operated and fully insured. Certified through PMII, NAMRI, OSHA, Safe Mold Solutions Inc., and the EPA.

GPS offers certified and guaranteed mold remediation, inspections, and prevention. We use a non-toxic process and offer the best prices in th area. Owner operated and fully insured. Certified through PMII, NAMRI, OSHA, Safe Mold Solutions Inc., and the EPA.

E C Siding & Windows

4.88(
17
)

E C Siding & Windows

4.88(
17
)
Customers say: Super punctual
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
"They had done a good job on my skylight. So I hired them to replace my grandsons roof. Showed up immediately. Started the job a day or two later. Finished it in a day and a half. Reasonable rate. Another excellent job. .Thank you, EC ROOFING ."

Paula G on December 2020

"They had done a good job on my skylight. So I hired them to replace my grandsons roof. Showed up immediately. Started the job a day or two later. Finished it in a day and a half. Reasonable rate. Another excellent job. .Thank you, EC ROOFING ."

Paula G on December 2020

Global Priority Cleanup

No reviews yet

Global Priority Cleanup

No reviews yet
14 years of experience

Global Priority Clean-Up, Inc. proudly services the Midwest including Illinois, Indiana, Iowa, Wisconsin and Michigan, with our professional and rapid Biohazard Recovery and Decontamination Services.

Global Priority Clean-Up, Inc. proudly services the Midwest including Illinois, Indiana, Iowa, Wisconsin and Michigan, with our professional and rapid Biohazard Recovery and Decontamination Services.

Go Above Board Environmental Inspection

No reviews yet

Go Above Board Environmental Inspection

No reviews yet
16 years of experience

We are an environmental service business.

We are an environmental service business.

AuntieGen, Inc.

No reviews yet

AuntieGen, Inc.

No reviews yet
15 years of experience

The mission of AuntieGen Inc. is to create healthier living areas for our families, cure sick building syndrome for our students and employees by annihilating all infectious living and toxic organisms. We achieve this through our product that becomes Bio-degradable.

The mission of AuntieGen Inc. is to create healthier living areas for our families, cure sick building syndrome for our students and employees by annihilating all infectious living and toxic organisms. We achieve this through our product that becomes Bio-degradable.

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FAQs for mold & toxic material test projects in Ottawa, 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 Ottawa, 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.

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