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Find Radon gas testers in Mesa

Avatar for Affordable Radon Southwest

Affordable Radon Southwest

4.82(
337
)
Approved Pro

Affordable Radon Southwest

4.82(
337
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
15 years of experience

We are a family owned and operated company specializing in Radon Gas testing & reduction. Our services include Radon Mitigation & testing, sump pump installation & pit excavation, crawl space vapor barrier installation, & crawl space insulation services. Along with our expert team of professionals, & wide portfolio of services, we also stand behind our work with a lifetime warranty on our Radon mitigation systems, at a guaranteed level of 3.9pCi/L or below! We have worked hard serving our clients for the past decade, and we would love the opportunity to earn your business whether you're a Real Estate Agent assisting a client through closing or a homeowner concerned with the dangers of Radon Gas, give us a Call Today!

"This company has great customer service. They care about their customers, putting our needs first. Very quick to scheduling and prompt on arrival time. Very educational on the process. Great work, job well done. Would definitely recommend! "

Michelle A on June 2025

We are a family owned and operated company specializing in Radon Gas testing & reduction. Our services include Radon Mitigation & testing, sump pump installation & pit excavation, crawl space vapor barrier installation, & crawl space insulation services. Along with our expert team of professionals, & wide portfolio of services, we also stand behind our work with a lifetime warranty on our Radon mitigation systems, at a guaranteed level of 3.9pCi/L or below! We have worked hard serving our clients for the past decade, and we would love the opportunity to earn your business whether you're a Real Estate Agent assisting a client through closing or a homeowner concerned with the dangers of Radon Gas, give us a Call Today!

"This company has great customer service. They care about their customers, putting our needs first. Very quick to scheduling and prompt on arrival time. Very educational on the process. Great work, job well done. Would definitely recommend! "

Michelle A on June 2025


Avatar for G3 Environmental

G3 Environmental

5.00(
15
)
Approved Pro

G3 Environmental

5.00(
15
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
9 years of experience

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the needs of the customer. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Timeline, knowledgeable and responsive"

Marcel M on May 2023

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the needs of the customer. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Timeline, knowledgeable and responsive"

Marcel M on May 2023


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 COIT Cleaning & Restoration of Phoenix

COIT Cleaning & Restoration of Phoenix

4.54(
72
)

COIT Cleaning & Restoration of Phoenix

4.54(
72
)
Customers say: Super punctual
76 years of experience

COIT Cleaning and Restoration specializes in professional residential and commercial cleaning services. In addition, we help families and businesses by providing certified 24-hour emergency water, smoke and wind damage Restoration services. COIT is the expert in the cleaning and restoration industry with more than 69 Years of Experience and Excellence. We offer our customers unparalleled service, professionalism and quality with a 100%, risk-free, money back guarantee. We're a brand you can trust! Visit us at www.coit.com to learn more.

"Today I had Coit out to evaluate my air duct system with a new service they offer called aero seal. My home was built in 1986 and I wanted to see if I could perhaps improve the efficiency of our home, especially with the latest SRP rate increase. Rick and Wyattdid a great job explaining the testing process, and once the system was set up and connected to the computer program, we found our system was leaking 5.5 % into our atic. After the aeroseal process, they got that number down to 0.6 %! An 88.7 % improvement. I'm so happy I had this done, and I'm quite certain it will help mitigate any cooling loss in the summer. The crew was an absolute pleasure to work with and super professional. Even my crazy dog liked them!Thank you both so very much."

James P on December 2025

COIT Cleaning and Restoration specializes in professional residential and commercial cleaning services. In addition, we help families and businesses by providing certified 24-hour emergency water, smoke and wind damage Restoration services. COIT is the expert in the cleaning and restoration industry with more than 69 Years of Experience and Excellence. We offer our customers unparalleled service, professionalism and quality with a 100%, risk-free, money back guarantee. We're a brand you can trust! Visit us at www.coit.com to learn more.

"Today I had Coit out to evaluate my air duct system with a new service they offer called aero seal. My home was built in 1986 and I wanted to see if I could perhaps improve the efficiency of our home, especially with the latest SRP rate increase. Rick and Wyattdid a great job explaining the testing process, and once the system was set up and connected to the computer program, we found our system was leaking 5.5 % into our atic. After the aeroseal process, they got that number down to 0.6 %! An 88.7 % improvement. I'm so happy I had this done, and I'm quite certain it will help mitigate any cooling loss in the summer. The crew was an absolute pleasure to work with and super professional. Even my crazy dog liked them!Thank you both so very much."

James P on December 2025


Avatar for Global Prevention Services

Global Prevention Services

4.94(
16
)

Global Prevention Services

4.94(
16
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Global Prevention Services ('GPS') is a full service General Contractor and an environmental property specialist. GPS is experienced, well-established and can properly handle new construction, remodels, additions and any emergency service needs such as water removal and damage repair including mold removal. GPS uses state of the art equipment and products in service to our thousands of clients. GPS is an excellent and trusted source to its clients all across the country and has project experience in thousands of residential properties of every type. In addition, GPS has successfully completed every single project for which it has been hired to include hospitals, post offices, military facilities, life care centers, hotels and virtually every possible building category. You will be treated and serviced well by GPS and its caring staff of professionals, certified Project Managers and talented staff. Our mission is your complete satisfaction and we deliver on that goal everyday with competent, efficient project work. GPS historically performs complicated scopes of work with better results in a faster process time and at very competitive rates. You will be pleased to have found GPS to handle your construction needs, environmental property concerns or for those times when an emergency occurs. ***MENTION ANGI AND GET YOUR EMERGENCY FEES WAIVED (MUST MENTION WHEN SCHEDULING)***

"GPS did an amazing job, start to finish. I can't say enough good things about Rudy and Kimberly, who were my main points of contact. They are professional, and always followed through. If something wasn't perfect or the way I wanted, they changed/fixed it without hesitation. Thank you for everything."

Daniel S on December 2023

Global Prevention Services ('GPS') is a full service General Contractor and an environmental property specialist. GPS is experienced, well-established and can properly handle new construction, remodels, additions and any emergency service needs such as water removal and damage repair including mold removal. GPS uses state of the art equipment and products in service to our thousands of clients. GPS is an excellent and trusted source to its clients all across the country and has project experience in thousands of residential properties of every type. In addition, GPS has successfully completed every single project for which it has been hired to include hospitals, post offices, military facilities, life care centers, hotels and virtually every possible building category. You will be treated and serviced well by GPS and its caring staff of professionals, certified Project Managers and talented staff. Our mission is your complete satisfaction and we deliver on that goal everyday with competent, efficient project work. GPS historically performs complicated scopes of work with better results in a faster process time and at very competitive rates. You will be pleased to have found GPS to handle your construction needs, environmental property concerns or for those times when an emergency occurs. ***MENTION ANGI AND GET YOUR EMERGENCY FEES WAIVED (MUST MENTION WHEN SCHEDULING)***

"GPS did an amazing job, start to finish. I can't say enough good things about Rudy and Kimberly, who were my main points of contact. They are professional, and always followed through. If something wasn't perfect or the way I wanted, they changed/fixed it without hesitation. Thank you for everything."

Daniel S on December 2023


Avatar for Syntech Environmental LLC

Syntech Environmental LLC

4.73(
15
)

Syntech Environmental LLC

4.73(
15
)
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers

We are a full service environmental consulting firm based in Chandler, Arizona and founded to enable our clients to respond to their environmental concerns. To achieve this, we have brought together a team of professionals to address our clients individualized issues precisely, responsively, and comprehensively. To utilize a high degree of professionalism, confidentiality, and integrity toward environmental problem solving and create a successful company with a rewarding work environment that attracts extraordinary environmental professionals, while maintaining a business philosophy that focuses on long-term client relationships based on trust, respect, and efficiency. By instituting a positive and empowering work atmosphere, we encourage individual and team development. We support team members to contribute to our industry and our community through professional and civic organizations. We believe these are essential elements for responsible and long-term growth. Integrity is the base from which all our services are carried out. Integrity fosters our pledge to give our clients quality work and cost-effective value. These principles direct our decisions as we build a profitable corporation which reinvests in its future and that of its employees.

"They were negligent in testing. If we took their word for it it would have cost us even more including our family (young baby and unborn child’s health)"

Stephanie G on May 2019

We are a full service environmental consulting firm based in Chandler, Arizona and founded to enable our clients to respond to their environmental concerns. To achieve this, we have brought together a team of professionals to address our clients individualized issues precisely, responsively, and comprehensively. To utilize a high degree of professionalism, confidentiality, and integrity toward environmental problem solving and create a successful company with a rewarding work environment that attracts extraordinary environmental professionals, while maintaining a business philosophy that focuses on long-term client relationships based on trust, respect, and efficiency. By instituting a positive and empowering work atmosphere, we encourage individual and team development. We support team members to contribute to our industry and our community through professional and civic organizations. We believe these are essential elements for responsible and long-term growth. Integrity is the base from which all our services are carried out. Integrity fosters our pledge to give our clients quality work and cost-effective value. These principles direct our decisions as we build a profitable corporation which reinvests in its future and that of its employees.

"They were negligent in testing. If we took their word for it it would have cost us even more including our family (young baby and unborn child’s health)"

Stephanie G on May 2019


Environmental Analytics

5.00(
7
)

Environmental Analytics

5.00(
7
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Environmental Analytics L.L.C. (EA) is a Tucson, Arizona-based company providing comprehensive indoor & outdoor air quality testing services and air-filter services to consumers in Arizona region. We specialize in numerous investigations such as mold, radon, asbestos, lead, particulate matter and more. Environmental Analytics incorporates known Building Sciences and key engineering strategies to provide a thorough and cost-effective approach for the customer. Our goal is deliver meaningful and comprehensive indoor and outdoor air quality testing services and air-filter services to residential and commercial clients. E.A. will do this by continuing the high level of education this industry demands and through clear recognition of the customer’s needs. E.A. is a service-oriented company with a focus on integrity and high-level of professional servitude. E.A.’s vision is to be recognized as the premiere comprehensive indoor/outdoor air quality testing company in the greater Arizona region. Environmental Analytics distinguishes itself from its competitors by better understanding the customer and the test environment. E.A. is willing to take the time to understand the root cause of air quality problems which requires a higher level of experience, education, investigation and intuition. This approach provides root cause solutions to the client, not just confirmation of the original complaint. To convey this to customers, Environmental Analytics will address the customer in person when possible, identifying key issues or concerns, and then testing the area of concern based off of the customer’s needs, not merely off of price alone.

"The testing went very well. Unfortunately due to mistakes that we made BEFORE we engaged them, the clean up and testing were both more complicated than they typically would have been. The EA people worked with us to clearly explain our options and complete their work in a timely fashion. They timing and scheduling were critical for us because of a hospital stay my mother in law was having. We were very pleased both with the quality of their work and their flexibility in working around our scheduling constraints"

Glen G on May 2018

Environmental Analytics L.L.C. (EA) is a Tucson, Arizona-based company providing comprehensive indoor & outdoor air quality testing services and air-filter services to consumers in Arizona region. We specialize in numerous investigations such as mold, radon, asbestos, lead, particulate matter and more. Environmental Analytics incorporates known Building Sciences and key engineering strategies to provide a thorough and cost-effective approach for the customer. Our goal is deliver meaningful and comprehensive indoor and outdoor air quality testing services and air-filter services to residential and commercial clients. E.A. will do this by continuing the high level of education this industry demands and through clear recognition of the customer’s needs. E.A. is a service-oriented company with a focus on integrity and high-level of professional servitude. E.A.’s vision is to be recognized as the premiere comprehensive indoor/outdoor air quality testing company in the greater Arizona region. Environmental Analytics distinguishes itself from its competitors by better understanding the customer and the test environment. E.A. is willing to take the time to understand the root cause of air quality problems which requires a higher level of experience, education, investigation and intuition. This approach provides root cause solutions to the client, not just confirmation of the original complaint. To convey this to customers, Environmental Analytics will address the customer in person when possible, identifying key issues or concerns, and then testing the area of concern based off of the customer’s needs, not merely off of price alone.

"The testing went very well. Unfortunately due to mistakes that we made BEFORE we engaged them, the clean up and testing were both more complicated than they typically would have been. The EA people worked with us to clearly explain our options and complete their work in a timely fashion. They timing and scheduling were critical for us because of a hospital stay my mother in law was having. We were very pleased both with the quality of their work and their flexibility in working around our scheduling constraints"

Glen G on May 2018


Avatar for Arizona Foundation Solutions

Arizona Foundation Solutions

4.42(
55
)

Arizona Foundation Solutions

4.42(
55
)
Customers say: Quality work
38 years of experience

The only ICRI Certified company in the state of Arizona! If your home has cracks in floors or walls, or has windows and doors out of alignment, call today for a comprehensive foundation inspection. Phoenix residents please call 6024701311. *Online quotes are unavailable and an initial consultation must take place in order to examine the extent of the foundation problem.* For more information on foundation solutions and blogs from Bob visit: http://www.foundationrepairsaz.com

"***STAY AWAY*** They should remove the word "Solutions" from their name. That is far from what they provide. I started the process with Arizona Foundation "solutions" back in May of 2021 to fix a retaining wall/foundation. After meeting with the sales person they did let me know that they can proceed with engineering the "solution". After about 30 days I met with the sales person again so he could present the "solution" and take a deposit. I agreed to the option they offered and they stated I would be on the calendar to be completed before December 2021. During the permitting process there were items that came up that were needed from me directly by the county. These items were provided. After these items were provided I had not been contacted by anyone at the company to schedule the repair. At at the same time I was told by the county that Arizona Foundation "Solutions" was needing more engineering from me to complete the job. Obviously this was concerning as I should have heard about this directly from the company I was spending ten's of thousands of dollars with. However it was crickets. After reaching out to the sales person by call, text, email with no response before the holidays, I gave him the benefit of the doubt and waited until after the holidays and tried again with no avail. I then was put in contact with the "Area Sales Manager" whom after a week reviewed everything and let me now that the project they had in their hands for 7-8 months now was unfortunately out of scope for their company to complete and said they would be refunding me my deposit. I questioned how was this job reviewed and drawn out by an engineer and yet its somehow not able to be completed by them? Another week went by and the same manager contacting me and let me know that the owner reviewed and said they would solve this and get the job completed. I mistrustfully agreed for them to continue. After waiting another 2 weeks with no communication, I reached back out only to find out they were wrong and actually could not come up with a "solution" and would be refunding me my deposit (again). I waited another 2 weeks for my check to come in the mail and then called again to now find out they sent the check to a wrong address and would need to cancel that check and send out another. I asked for them overnight the check for my inconvenience and the refused to as this was an "additional cost that had to be approved". Throughout the most recent 2 months I tried to get the owners (Bob Brown) attention by phone/email to discuss my entire situation and was told he was in "meetings" 10/10 times I called. I was FINALLY able to get him to call back once I called every hour on the hour same day. As I expressed to the owner, the incompetency and ignorance starts at the top at his company. Not only was the communication poor at best during my dealings, the fact that an apologize nor any remorse was expressed on how my customer service experience was. A few key items to any contracting/construction work is setting expectations, communication, and follow through. NONE of which was provided by Arizona Foundation "Solutions". This type of work is extremely costly and any company completing it should be handling their customers with at least some respect while they spend a price of a new car or part of a college tuition on."

Michael V on March 2022

The only ICRI Certified company in the state of Arizona! If your home has cracks in floors or walls, or has windows and doors out of alignment, call today for a comprehensive foundation inspection. Phoenix residents please call 6024701311. *Online quotes are unavailable and an initial consultation must take place in order to examine the extent of the foundation problem.* For more information on foundation solutions and blogs from Bob visit: http://www.foundationrepairsaz.com

"***STAY AWAY*** They should remove the word "Solutions" from their name. That is far from what they provide. I started the process with Arizona Foundation "solutions" back in May of 2021 to fix a retaining wall/foundation. After meeting with the sales person they did let me know that they can proceed with engineering the "solution". After about 30 days I met with the sales person again so he could present the "solution" and take a deposit. I agreed to the option they offered and they stated I would be on the calendar to be completed before December 2021. During the permitting process there were items that came up that were needed from me directly by the county. These items were provided. After these items were provided I had not been contacted by anyone at the company to schedule the repair. At at the same time I was told by the county that Arizona Foundation "Solutions" was needing more engineering from me to complete the job. Obviously this was concerning as I should have heard about this directly from the company I was spending ten's of thousands of dollars with. However it was crickets. After reaching out to the sales person by call, text, email with no response before the holidays, I gave him the benefit of the doubt and waited until after the holidays and tried again with no avail. I then was put in contact with the "Area Sales Manager" whom after a week reviewed everything and let me now that the project they had in their hands for 7-8 months now was unfortunately out of scope for their company to complete and said they would be refunding me my deposit. I questioned how was this job reviewed and drawn out by an engineer and yet its somehow not able to be completed by them? Another week went by and the same manager contacting me and let me know that the owner reviewed and said they would solve this and get the job completed. I mistrustfully agreed for them to continue. After waiting another 2 weeks with no communication, I reached back out only to find out they were wrong and actually could not come up with a "solution" and would be refunding me my deposit (again). I waited another 2 weeks for my check to come in the mail and then called again to now find out they sent the check to a wrong address and would need to cancel that check and send out another. I asked for them overnight the check for my inconvenience and the refused to as this was an "additional cost that had to be approved". Throughout the most recent 2 months I tried to get the owners (Bob Brown) attention by phone/email to discuss my entire situation and was told he was in "meetings" 10/10 times I called. I was FINALLY able to get him to call back once I called every hour on the hour same day. As I expressed to the owner, the incompetency and ignorance starts at the top at his company. Not only was the communication poor at best during my dealings, the fact that an apologize nor any remorse was expressed on how my customer service experience was. A few key items to any contracting/construction work is setting expectations, communication, and follow through. NONE of which was provided by Arizona Foundation "Solutions". This type of work is extremely costly and any company completing it should be handling their customers with at least some respect while they spend a price of a new car or part of a college tuition on."

Michael V on March 2022


Avatar for Star 48 Restoration

Star 48 Restoration

5.00(
6
)

Star 48 Restoration

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

We offer remediation services for homes in the Phoenix Metro area. With over 20 years of experience in the restoration industry, we have completed a wide variety of water, fire, and mold remediation projects. We are licensed, bonded, and insured. Is your water heater leaking? We got you! Does your ceiling appear to be randomly growing a tumor? Give us a call! Did your child accidentally clog the toilet and now you're ankle deep in nasty water? We're here for you day and night! Unsure if that funky stain in the bathroom is mold? We offer mold testing! Dealing with damages to your home can be a stressful process that we are well versed in handling. Our mission is to always give you, the home owner, an honest and trustworthy experience.

"Jesse was terrific. Very thorough, excellent communication, high level of integrity, honored bid despite needing to come back for additional work."

Joe N on February 2023

We offer remediation services for homes in the Phoenix Metro area. With over 20 years of experience in the restoration industry, we have completed a wide variety of water, fire, and mold remediation projects. We are licensed, bonded, and insured. Is your water heater leaking? We got you! Does your ceiling appear to be randomly growing a tumor? Give us a call! Did your child accidentally clog the toilet and now you're ankle deep in nasty water? We're here for you day and night! Unsure if that funky stain in the bathroom is mold? We offer mold testing! Dealing with damages to your home can be a stressful process that we are well versed in handling. Our mission is to always give you, the home owner, an honest and trustworthy experience.

"Jesse was terrific. Very thorough, excellent communication, high level of integrity, honored bid despite needing to come back for additional work."

Joe N on February 2023


Showing 1-10 of 21
FAQs for radon gas testing projects in Mesa, AZ

Radon is the second leading cause of lung cancer in the U.S. The gas seeps through cracks in foundations and collects in basements and other low areas. Once you breathe it in, radioactive particles lodge in lung tissue and do long-term damage. Because you can’t see or smell radon, the EPA recommends testing your home every two years—and after major renovations—to keep your family safe.

Yes—every home should be tested. The EPA advises doing it at least every two years and any time you remodel, buy, or sell. On average, one in 15 houses nationwide sits above the recommended limit, and the only way to know where yours stands is a formal test. The equipment simply measures gas levels and won’t change your indoor environment, so the process is completely harmless.

Certified radon professionals—often home inspectors or dedicated radon mitigation contractors—handle testing. These radon testing professionals follow EPA protocols and use calibrated instruments to check levels throughout your house. Hiring a certified radon specialist means results you can trust for real estate deals, insurance requirements, and, most importantly, your family’s health.

Inspectors specialize in measuring radon gas levels, while licensed mitigation contractors design and install the systems that remove it. If your test comes back high, your inspector can point you to a qualified mitigation pro who will size and install the right fan, piping, or other equipment to bring levels down.

No—standard home air purifiers don’t touch radon. They’re built to trap dust and pollen, not radioactive gas. If testing shows high levels, you’ll need a dedicated mitigation system that vents the gas from beneath your home to the outdoors. Relying on a room purifier alone won’t keep your indoor air safe.

Opening a few windows in your home might dilute radon for a short time, but the gas seeps back in as soon as they’re closed. For a lasting fix, you’ll need a professional mitigation system—often a sub-slab depressurization fan—that pulls radon from beneath the foundation and safely vents it outside.

The Mesa, AZ homeowners’ guide to radon gas testings

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