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Verified Reviews for Radon Detection And Reduction pros in Washington Park, IL

*The Angi rating for Radon Detection And Reduction companies in Washington Park, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Radon Detection And Reduction needs.

*The HomeAdvisor rating for Radon Detection And Reduction companies in Washington Park, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Radon Detection And Reduction needs.

Last update on December 07, 2025

Find Radon detection and reduction specialists in Washington Park

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 Hot Shotz Mobile Power Wash

Hot Shotz Mobile Power Wash

4.78(
140
)

Hot Shotz Mobile Power Wash

4.78(
140
)
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers

At Hot Shotz Mobile Power Wash, we offer a wide variety of high / low pressure cleaning for both commercial and residential customers. We have proudly served the St. Louis area since 1988. The owners, Brian and Gail Vance, believe in a strong work ethic. We work hard to do the job as if it were our own property. Our technicians are fully trained and insured, and all of our chemicals are biodegradable and non-hazardous to the environment.

"They did a wonderful job! Service was prompt and thorough. Exactly what we had hoped for! We will definitely use Hot Shotz again."

Deborah B on August 2019

At Hot Shotz Mobile Power Wash, we offer a wide variety of high / low pressure cleaning for both commercial and residential customers. We have proudly served the St. Louis area since 1988. The owners, Brian and Gail Vance, believe in a strong work ethic. We work hard to do the job as if it were our own property. Our technicians are fully trained and insured, and all of our chemicals are biodegradable and non-hazardous to the environment.

"They did a wonderful job! Service was prompt and thorough. Exactly what we had hoped for! We will definitely use Hot Shotz again."

Deborah B on August 2019

Avatar for STL Home Inspection Services

STL Home Inspection Services

4.91(
45
)

STL Home Inspection Services

4.91(
45
)
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers

(Retired Air Force) We are a professional inspection company specializing in residential, radon, thermal, termite, and mold. Our team has over 30 years of combined experience.

(Retired Air Force) We are a professional inspection company specializing in residential, radon, thermal, termite, and mold. Our team has over 30 years of combined experience.

ENVIROPRO

4.75(
13
)

ENVIROPRO

4.75(
13
)
Customers say: Super punctual
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers

Enviropro is an industrial hygiene and consulting company. We specialize in indoor environmental issues. We have over twenty years experience in the environmental consulting industry. We have provided expert witness testimony. Our clients include everyone from residential structures to commercial buildings to schools and universities. We have been featured on History Channel’s Modern Marvels. Our goal is to provide comprehensive information to our clients without resorting to scare tactics. We have some of the highest credentials available in the industry. We were also on the peer review board for the most current mold remediation guideline.

Enviropro is an industrial hygiene and consulting company. We specialize in indoor environmental issues. We have over twenty years experience in the environmental consulting industry. We have provided expert witness testimony. Our clients include everyone from residential structures to commercial buildings to schools and universities. We have been featured on History Channel’s Modern Marvels. Our goal is to provide comprehensive information to our clients without resorting to scare tactics. We have some of the highest credentials available in the industry. We were also on the peer review board for the most current mold remediation guideline.

Avatar for Reliable Radon LLC

Reliable Radon LLC

5.00(
10
)

Reliable Radon LLC

5.00(
10
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Reliable Radon is a St. Louis-based professional radon mitigation and testing company. We are committed to the testing and removal of radon by using the best technology and installing the most reliable mitigation systems. We are members of AARST (American Association of Radon Scientists and Technologists) and certified by the NRPP (National Radon Proficiency) for radon mitigation and testing of radon. We strictly adhere to the EPA protocols set forth in the EPA Regulation 402-R-93-078. All our work is guaranteed.

Reliable Radon is a St. Louis-based professional radon mitigation and testing company. We are committed to the testing and removal of radon by using the best technology and installing the most reliable mitigation systems. We are members of AARST (American Association of Radon Scientists and Technologists) and certified by the NRPP (National Radon Proficiency) for radon mitigation and testing of radon. We strictly adhere to the EPA protocols set forth in the EPA Regulation 402-R-93-078. All our work is guaranteed.

Avatar for Radon Professional Inspectors

Radon Professional Inspectors

4.60(
10
)

Radon Professional Inspectors

4.60(
10
)
Customers say: Quality work
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers

Radon Professional Inspectors is a complete radon company providing radon services for residential and commercial clients. RPI can test and mitigate any type of home you live in, or any type of building you work. You don't have to live with radon. Call Radon Professional Inspectors and breathe easy.

Radon Professional Inspectors is a complete radon company providing radon services for residential and commercial clients. RPI can test and mitigate any type of home you live in, or any type of building you work. You don't have to live with radon. Call Radon Professional Inspectors and breathe easy.

Avatar for Criterium - Hardy Engineers

Criterium - Hardy Engineers

5.00(
5
)

Criterium - Hardy Engineers

5.00(
5
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Criterium Hardy Engineers provides professional inspection, evaluation and diagnostic building services for the St. Louis Region including the cities of Chesterfield, Ballwin, Kirkwood, Manchester, Wildwood, St. Charles, O’Fallon, and Creve Coeur. Our Missouri and Illinois licensed Professional Engineers have experience with a wide variety of facilities types and building systems.

Criterium Hardy Engineers provides professional inspection, evaluation and diagnostic building services for the St. Louis Region including the cities of Chesterfield, Ballwin, Kirkwood, Manchester, Wildwood, St. Charles, O’Fallon, and Creve Coeur. Our Missouri and Illinois licensed Professional Engineers have experience with a wide variety of facilities types and building systems.

Waterproof-Solutions

4.41(
17
)

Waterproof-Solutions

4.41(
17
)
Customers say: Quick response
2009 years of experience

We do basement waterproofing, crack injections, concrete work, install windows and much, MUCH more. We offer FREE estimates! We have a list of references, just ask!

"After finding a leak in our basement Steve came out reviewed the situation and proposed a solution. He explained what was going on to cause the leak and how the repair would remedy the problem. He contacted his staff and setup a repair for two days out. The repair itself went very well. The service person was on time and repaired the issue and cleaned up after himself (taking away all the old concrete and some dirt/mud that he had to pull out). I would highly recommend Steve and his staff."

Craig M on December 2018

We do basement waterproofing, crack injections, concrete work, install windows and much, MUCH more. We offer FREE estimates! We have a list of references, just ask!

"After finding a leak in our basement Steve came out reviewed the situation and proposed a solution. He explained what was going on to cause the leak and how the repair would remedy the problem. He contacted his staff and setup a repair for two days out. The repair itself went very well. The service person was on time and repaired the issue and cleaned up after himself (taking away all the old concrete and some dirt/mud that he had to pull out). I would highly recommend Steve and his staff."

Craig M on December 2018

C & K Heating and Cooling, Inc.

5.00(
6
)

C & K Heating and Cooling, Inc.

5.00(
6
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

C &K is a family owned full service heating, cooling and plumbing company. We specialize in commercial, residential, refrigeration and plumbing. We offer very competitive pricing for all projects big or small. Financing is available.

C &K is a family owned full service heating, cooling and plumbing company. We specialize in commercial, residential, refrigeration and plumbing. We offer very competitive pricing for all projects big or small. Financing is available.

Buyers Protection Group (BPG)

3.53(
85
)

Buyers Protection Group (BPG)

3.53(
85
)
1989 years of experience

At BPG, we believe home inspections shouldn't end at the driveway. Our inspectors and engineers undergo thorough background checks and must meet ongoing training and performance standards -- they are a selective group of professionals.With so many inspection companies to choose from, how do you select one that fits your needs? We've earned a solid reputation for standing behind our work and providing distinct value advantages that help protect our clients.

"BPG Inspections Failed to Honor Their Guarantee or Take Accountability Summary: In my experience, BPG Inspections failed to uphold their guarantee, and I encountered poor follow-up and vague, shifting justifications for denying my claim. Details: I hired BPG Inspections in Pensacola, FL, to inspect a home I purchased in April. The inspection occurred in March, and I moved in during May. Within a few days of moving in – well within the 90-day warranty period – I discovered two issues that the inspection report had explicitly marked as functional: 1. The garbage disposal unit did not work (it made a soft noise but did not function). 2. The HVAC system failed to deliver air to the kitchen and adjacent bedroom, though the inspection report had indicated the air handling was operational and in good condition. I promptly emailed BPG about these problems, and while the inspector initially responded, I was then passed to their claims department. After repeated follow-ups, I finally received a call on June 23rd – nearly a month after reporting the issue – only to be told that neither issue was covered under their warranty. I raised the following concerns: 1. For the HVAC, the inspector had confirmed it was functional in an email, contradicting the claims department's later justification that it could not be tested. If no air reaches two rooms, it should have been evident during either heating or cooling tests – this was missed. 2. For the garbage disposal, I was told it was a "kitchen appliance" and therefore not covered, despite it being a fixture included in inspections. When I asked where the warranty excluded it, I received inconsistent explanations. At no point did the company offer to re-inspect or further investigate these issues. I expected more accountability from a professional inspection service – especially one offering a guarantee."

Ashok S on August 2025

At BPG, we believe home inspections shouldn't end at the driveway. Our inspectors and engineers undergo thorough background checks and must meet ongoing training and performance standards -- they are a selective group of professionals.With so many inspection companies to choose from, how do you select one that fits your needs? We've earned a solid reputation for standing behind our work and providing distinct value advantages that help protect our clients.

"BPG Inspections Failed to Honor Their Guarantee or Take Accountability Summary: In my experience, BPG Inspections failed to uphold their guarantee, and I encountered poor follow-up and vague, shifting justifications for denying my claim. Details: I hired BPG Inspections in Pensacola, FL, to inspect a home I purchased in April. The inspection occurred in March, and I moved in during May. Within a few days of moving in – well within the 90-day warranty period – I discovered two issues that the inspection report had explicitly marked as functional: 1. The garbage disposal unit did not work (it made a soft noise but did not function). 2. The HVAC system failed to deliver air to the kitchen and adjacent bedroom, though the inspection report had indicated the air handling was operational and in good condition. I promptly emailed BPG about these problems, and while the inspector initially responded, I was then passed to their claims department. After repeated follow-ups, I finally received a call on June 23rd – nearly a month after reporting the issue – only to be told that neither issue was covered under their warranty. I raised the following concerns: 1. For the HVAC, the inspector had confirmed it was functional in an email, contradicting the claims department's later justification that it could not be tested. If no air reaches two rooms, it should have been evident during either heating or cooling tests – this was missed. 2. For the garbage disposal, I was told it was a "kitchen appliance" and therefore not covered, despite it being a fixture included in inspections. When I asked where the warranty excluded it, I received inconsistent explanations. At no point did the company offer to re-inspect or further investigate these issues. I expected more accountability from a professional inspection service – especially one offering a guarantee."

Ashok S on August 2025

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Radon Detection and Reduction questions, answered by experts

It is possible to test for radon yourself using DIY radon test kits, but these at-home test kits should never be a replacement for professional radon testing. DIY test kits can provide some information about radon exposure in your house, but your indoor temperature and humidity can affect the results, as can improper usage of the test kit. You could save yourself some money by hiring a radon professional to begin with, and when it comes to your family’s safety, hiring an experienced professional to do the testing is usually the best option.

Costs depend on property size, test types, and additional services like mold sampling.

Radon detection is crucial as prolonged exposure to radon gas, a leading cause of lung cancer, poses significant health risks in residential environments.

The natural breakdown of uranium in soil, rock, and water can cause radon to appear in a home. The gas seeps into homes through cracks in foundations, walls, or floors, as well as through gaps around pipes or construction joints. Radon levels are influenced by soil composition, building materials, and ventilation. Poorly sealed or airtight homes can trap radon, allowing it to accumulate.

DIY radon detection is possible using over-the-counter test kits, but professional testing can provide more accurate assessments, especially in cases of high initial readings.

The Washington Park, IL homeowners’ guide to radon detection and reduction services

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

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