Get matched with top radon detection and reduction specialists in Chandler, AZ

Recommended by 96% of Angi customers

14 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

"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

G3 Environmental

•Approved Pro

G3 Environmental

•Approved Pro

Customers say: Quality work

8 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

"Timeline, knowledgeable and responsive"

Marcel M on May 2023

Arizona Indoor Air Quality and Environmental Testing, LLC

Arizona Indoor Air Quality and Environmental Testing, LLC

Recommended by 96% of Angi customers

26 years of experience

Arizona Indoor Air Quality & Environmental Testing, LLC, is a environmental testing company. We perform testing and inspections for residential, commercial and industrial Our consultants are experts in testing building materials for hazardous materials such as asbestos, mold, lead, radon, drug lab testing, volatile organic compounds (VOC's) & other hazardous materials. AZ-IAQ & Environmental Testings�� principal has been performing indoor are quality related projects for over 25 years, throughout the western united states. Experience includes; abatement of asbestos, lead, & mold, project management, estimating, oversight, initial surveys / investigations environmental testing, & post remediation & abatement clearances for over 25 years. We provide free phone estimates throughout the state of Arizona.

"We are extremely happy with the job he did. We highly recommend Tracy. He was knowledgeable and professional. Thank you."

Denise Q on July 2025

"We are extremely happy with the job he did. We highly recommend Tracy. He was knowledgeable and professional. Thank you."

Denise Q on July 2025

Masizo Restorations

•Approved Pro

Masizo Restorations

23 years of experience

We offer a variety of remodeling services. We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality of work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule an estimate today!

"I had a remodel project in my kitchen and it turned out great, I could not ask for a better contractor to perform the scope of work at hand! Steve was very communicative and performed with precise accuracy! I highly recommend Masizo Development if you’re looking to remodel your home!"

Nicole B on December 2024

"I had a remodel project in my kitchen and it turned out great, I could not ask for a better contractor to perform the scope of work at hand! Steve was very communicative and performed with precise accuracy! I highly recommend Masizo Development if you’re looking to remodel your home!"

Nicole B on December 2024

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

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

"as advertised"

Nancy C on July 2018

COIT Cleaning & Restoration of Phoenix

4.54(

COIT Cleaning & Restoration of Phoenix

4.54(

Customers say: Super punctual

75 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

"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

Global Prevention Services

4.94(

Global Prevention Services

4.94(

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

"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

Syntech Environmental LLC

4.73(

Syntech Environmental LLC

4.73(

Recommended by 93% of Angi 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

"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

Arizona Foundation Solutions

4.42(

Arizona Foundation Solutions

4.42(

Customers say: Quality work

37 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

"***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

Star 48 Restoration

Star 48 Restoration