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Radon gas testers in Portland
Choosing the right home inspector can be a difficult. Unlike most professionals, you probably won't get to meet your home inspector before hiring them. Furthermore, different inspectors have varying qualifications, experiences, equipment, reporting methods, and pricing. One thing for sure is that a quality home inspection requires a lot of work, and a thorough inspections depends heavily on the individual inspectors effort. If you honor us by permitting us to inspect your new home, we guarantee to give our very best effort and perform the inspection as if we are buying the home ourselves. This we promise to you. We look forward to earning your business!
Choosing the right home inspector can be a difficult. Unlike most professionals, you probably won't get to meet your home inspector before hiring them. Furthermore, different inspectors have varying qualifications, experiences, equipment, reporting methods, and pricing. One thing for sure is that a quality home inspection requires a lot of work, and a thorough inspections depends heavily on the individual inspectors effort. If you honor us by permitting us to inspect your new home, we guarantee to give our very best effort and perform the inspection as if we are buying the home ourselves. This we promise to you. We look forward to earning your business!
After many years as a licensed contractor doing remodel and refurbishing for my own company, I have decided to move to inspections so I can help homeowners to be aware of issues with their houses and for home buyers to be fully aware of any issues they may have missed in the homes they plan to buy. I take great pride in my professionalism, timeliness, and superior customer service on every job. I make sure to develop a lasting relationship, so that the next time service is needed, there will be no question on who to call.
"Jeff was responsive, easy to work with, and took the time to understand what my concerns were with the property we were considering."
Steve M on October 2021
After many years as a licensed contractor doing remodel and refurbishing for my own company, I have decided to move to inspections so I can help homeowners to be aware of issues with their houses and for home buyers to be fully aware of any issues they may have missed in the homes they plan to buy. I take great pride in my professionalism, timeliness, and superior customer service on every job. I make sure to develop a lasting relationship, so that the next time service is needed, there will be no question on who to call.
"Jeff was responsive, easy to work with, and took the time to understand what my concerns were with the property we were considering."
Steve M on October 2021
Science First. We are experts in our field and we will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business.
"Great communication and efficient handling from start to finished report."
Kathy M on December 2021
Science First. We are experts in our field and we will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business.
"Great communication and efficient handling from start to finished report."
Kathy M on December 2021
Nordic Home Inspection is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade, combined with ability, is what makes us true professionals. Above all, we are mindful of our customers' interests and make their concerns the foundation of our business.
"Chris was fantastic to talk to about what he checks for during the inspection and what i should expect to see on his report. Chris was on time, incredibly thorough and detailed. I highly recommend him to anyone looking for a great home inspector. "
Arthur K on June 2025
Nordic Home Inspection is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade, combined with ability, is what makes us true professionals. Above all, we are mindful of our customers' interests and make their concerns the foundation of our business.
"Chris was fantastic to talk to about what he checks for during the inspection and what i should expect to see on his report. Chris was on time, incredibly thorough and detailed. I highly recommend him to anyone looking for a great home inspector. "
Arthur K on June 2025
John's Waterproofing Co. is the premier waterproofing company serving in Oregon and southern Washington for almost 4 decades. We Specialize in Basement and Crawlspace Waterproofing and Repairs, we offer free inspections and estimates along with caring customer service. Contact our office today for your waterproofing needs!
"No."
Tracy W on January 2025
John's Waterproofing Co. is the premier waterproofing company serving in Oregon and southern Washington for almost 4 decades. We Specialize in Basement and Crawlspace Waterproofing and Repairs, we offer free inspections and estimates along with caring customer service. Contact our office today for your waterproofing needs!
"No."
Tracy W on January 2025
Mold Inspection Sciences of Portland offers our valued clients expert mold and moisture inspection and mold testing services. Our company has performed thousands of inspections since we were founded in 2002. We have an A+ record with the Better Business Bureau with no customer complaints. Looking for More Advice on Mold, Allergy, and Air Quality Impacting Your Family, Home, or Business? Listen in to The Secret Life of Mold Podcast Now Streaming On: Apple: https://podcasts.apple.com/us/podcast/the-secret-life-of-mold-mold-inspection-radio/id1459902004 Google: https://www.google.com/podcasts?feed=aHR0cHM6Ly9hbmNob3IuZm0vcy9hNWU5ZDQwL3BvZGNhc3QvcnNz Spotify: https://open.spotify.com/show/1J1M4djZa41ICtMR0kCcMl Stitcher: https://www.stitcher.com/podcast/mold-inspection-sciences/the-secret-life-of-mold
"Job done well. I hope I don't need to use a mold inspection team again, but if I do, I'll be using Mold Inspection Science. Thank you guys."
John H on June 2024
Mold Inspection Sciences of Portland offers our valued clients expert mold and moisture inspection and mold testing services. Our company has performed thousands of inspections since we were founded in 2002. We have an A+ record with the Better Business Bureau with no customer complaints. Looking for More Advice on Mold, Allergy, and Air Quality Impacting Your Family, Home, or Business? Listen in to The Secret Life of Mold Podcast Now Streaming On: Apple: https://podcasts.apple.com/us/podcast/the-secret-life-of-mold-mold-inspection-radio/id1459902004 Google: https://www.google.com/podcasts?feed=aHR0cHM6Ly9hbmNob3IuZm0vcy9hNWU5ZDQwL3BvZGNhc3QvcnNz Spotify: https://open.spotify.com/show/1J1M4djZa41ICtMR0kCcMl Stitcher: https://www.stitcher.com/podcast/mold-inspection-sciences/the-secret-life-of-mold
"Job done well. I hope I don't need to use a mold inspection team again, but if I do, I'll be using Mold Inspection Science. Thank you guys."
John H on June 2024
Same Day Responses - Free Estimates - Special Pricing for Angie's List Members! When there is a moisture problem that’s led to the mold growth in your home or office, our dry fog mold removal is the perfect option to seal the deal. With the source of the mold contained, our system quickly goes in and disinfects all mold spores from the air and surfaces. After we’re done, we’ll make sure the air you’re breathing in your home or business is clean and healthy again and we also apply a preventative to limit any chance of it returning. If you’re looking to put your mold problem to an end, call Rescom Restoration today!
"These guys were great. Professional and super responsive. I worked with them for a duplex in Gresham over the summer. They treated mold issues in the attic and the garage, performed duct work to fix the root cause of the problem, and also replaced sheet rock. I would strongly recommend this team. The owner was very understanding and was able to work with me to meet our aggressive timelines for closing the real estate transaction."
Arash S on November 2021
Same Day Responses - Free Estimates - Special Pricing for Angie's List Members! When there is a moisture problem that’s led to the mold growth in your home or office, our dry fog mold removal is the perfect option to seal the deal. With the source of the mold contained, our system quickly goes in and disinfects all mold spores from the air and surfaces. After we’re done, we’ll make sure the air you’re breathing in your home or business is clean and healthy again and we also apply a preventative to limit any chance of it returning. If you’re looking to put your mold problem to an end, call Rescom Restoration today!
"These guys were great. Professional and super responsive. I worked with them for a duplex in Gresham over the summer. They treated mold issues in the attic and the garage, performed duct work to fix the root cause of the problem, and also replaced sheet rock. I would strongly recommend this team. The owner was very understanding and was able to work with me to meet our aggressive timelines for closing the real estate transaction."
Arash S on November 2021
Oregon Restoration is your local, independent restoration company, proudly serving the Portland Metro and all of Central Oregon from our offices in Portland, Bend and Eugene. We specialize in water damage restoration, mold removal, fire and smoke remediation, asbestos and lead abatement, as well as complete repair and reconstruction. Our IICRC-certified team ensures seamless service from start to finish, so you can trust us to handle every step of the restoration process. Available 24/7 for emergencies, we’re here to protect and restore your home when it matters most.
"Ambrosio was friendly and kind, made a thorough search through the attic and rooms of the house to evaluate the roof leak and resulting mold, and gave a detailed estimate of all the work that would be involved in remediation. Didn't charge for gas or estimate. We since haven't been able to get in contact for next steps, but appreciated the timely and thorough response for our initial request for evaluation."
Hannah F on July 2022
Oregon Restoration is your local, independent restoration company, proudly serving the Portland Metro and all of Central Oregon from our offices in Portland, Bend and Eugene. We specialize in water damage restoration, mold removal, fire and smoke remediation, asbestos and lead abatement, as well as complete repair and reconstruction. Our IICRC-certified team ensures seamless service from start to finish, so you can trust us to handle every step of the restoration process. Available 24/7 for emergencies, we’re here to protect and restore your home when it matters most.
"Ambrosio was friendly and kind, made a thorough search through the attic and rooms of the house to evaluate the roof leak and resulting mold, and gave a detailed estimate of all the work that would be involved in remediation. Didn't charge for gas or estimate. We since haven't been able to get in contact for next steps, but appreciated the timely and thorough response for our initial request for evaluation."
Hannah F on July 2022
PNW Mold Masters: Fast and Easy Home Mold & Air Contaminant Testing Ensure the safety and air quality of your home with PNW Mold Masters. We specialize in quick, reliable testing for mold and other air contaminants, providing you with peace of mind and a healthier living environment.
"My condo is dated and lacks proper ventilation- aka no fans in the bathroom. So that combined with living in the pacific northwest is a recipe for disaster and perfect breeding ground for mold to accumulate. After dealing with a smell that would not quit for months I decided it was finally time to have my home inspected and gave Mold Masters a try. As a first time home owner I was unsure what to expect. Mold Masters was professional, honest, and guided me through the whole experience. I would highly recommend this business to anyone looking to improve their home and health."
Mack B on July 2024
PNW Mold Masters: Fast and Easy Home Mold & Air Contaminant Testing Ensure the safety and air quality of your home with PNW Mold Masters. We specialize in quick, reliable testing for mold and other air contaminants, providing you with peace of mind and a healthier living environment.
"My condo is dated and lacks proper ventilation- aka no fans in the bathroom. So that combined with living in the pacific northwest is a recipe for disaster and perfect breeding ground for mold to accumulate. After dealing with a smell that would not quit for months I decided it was finally time to have my home inspected and gave Mold Masters a try. As a first time home owner I was unsure what to expect. Mold Masters was professional, honest, and guided me through the whole experience. I would highly recommend this business to anyone looking to improve their home and health."
Mack B on July 2024
Welcome to Kelsay Environmental Building Consulting! We look forward to serving you!
Welcome to Kelsay Environmental Building Consulting! We look forward to serving you!
FAQs for radon gas testing projects in Portland, OR
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.
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