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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


(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.


Mick Construction Inc

5.00(
20
)

Mick Construction Inc

5.00(
20
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We are a family business that started in 1965. Mick Construction, Inc. consists of three full time union carpenters: Mark Perry, Steve Gallatin and Brian Perry.

"Mark did a great job on both tasks, was on-time and price was as-agreed. Would hire again as needed."

Andy B on June 2018

We are a family business that started in 1965. Mick Construction, Inc. consists of three full time union carpenters: Mark Perry, Steve Gallatin and Brian Perry.

"Mark did a great job on both tasks, was on-time and price was as-agreed. Would hire again as needed."

Andy B on June 2018


Avatar for ENVIROPRO

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

4.22(
18
)

Waterproof-Solutions

4.22(
18
)
Customers say: Quick response
16 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!

"I hired Waterproof Solutions in January 2022 to install an interior drain and sump on two walls ($5,000, lifetime warranty on treated walls). In June 2025, after an extremely wet spring in St. Louis, water entered through a wall they treated. The sump pit has been bone dry and the pump has never run since installation. I requested a refund, per the terms of the contract. On June 11, their representative said the company had changed ownership and would not honor the prior warranty. As of today, the issue remains unresolved. I will update this review if the company provides a fair resolution."

Kevin G on December 2025

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!

"I hired Waterproof Solutions in January 2022 to install an interior drain and sump on two walls ($5,000, lifetime warranty on treated walls). In June 2025, after an extremely wet spring in St. Louis, water entered through a wall they treated. The sump pit has been bone dry and the pump has never run since installation. I requested a refund, per the terms of the contract. On June 11, their representative said the company had changed ownership and would not honor the prior warranty. As of today, the issue remains unresolved. I will update this review if the company provides a fair resolution."

Kevin G on December 2025


Avatar for C & K Heating and Cooling, Inc.

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.

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Radon Detection and Reduction questions, answered by experts

You should have a professional test for radon every two to five years. A good rule of thumb is to get testing done every five years if you’ve never had an issue before and every two years if you have. You may also want to schedule testing if you notice symptoms of radon exposure or if you do intermittent DIY radon testing and notice changes in your levels between tests. If you have an active radon monitor, you can schedule testing if you notice levels increasing over time.

Long-term exposure increases lung cancer risks. Prolonged homestay individuals and smokers encounter heightened vulnerability and exposure concerns.

Costs depend on test type, home size, number of testing locations, and whether follow-up testing is required.

Installing a mitigation system reduces radon levels, which can cause lung cancer, providing peace of mind and long-term health benefits. It can also increase your home’s value, as many buyers prefer properties with radon safety measures in place. The investment is relatively low compared to the potential health risks associated with prolonged radon exposure.

Radon testing costs around $450 on average, but you could pay between $150 and $800 for testing, depending on a few factors. The size of your house is one of the most significant cost factors, as your radon professional will have to set up additional tests for homes with larger footprints. The type of test can also have an impact on the cost. Finally, some radon testing companies will include a recommended protocol for radon mitigation, while others might charge $50 to $100 extra.

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