Commercial, Residential, & MULTI-FAMILY Radon Testing & Mitigation in Colorado
Testing for Radon is the first step towards protecting the health of your family, your tenants, and your real estate investments.
Radon: The Radioactive
Gas You Cannot See,
Taste or Smell
Class A Carcinogen
Prolonged Radon exposure is the #1 cause of lung cancer for non-smokers, and #2 for smokers.
Testing is the only way to detect Radon.
Radon is a colorless, odorless gas that seeps into buildings and homes undetected. We use state-of-the-art equipment to accurately measure radon levels.
Colorado = Zone 1 (Highest Radon Potential)
Our state sits on granite which naturally contains Uranium. Uranium decay in soil produces Radon.
Radon Testing & Mitigation Process
1
Quote & Schedule
Consult with an air quality professional for an instant quote & service appointment.
2
Air Testing
- Single Family Residential: We use a Continuous Radon Monitor for most testing, and provide the aircheck devices after mitigation at no charge.
- Commercial: After distributing advance notice to occupants, a certified technician positions aircheck devices in all necessary levels and rooms of the property in compliance with DORA standards for multi-family, HUD housing, school & childcare facilities.
3
Fast Results
After 48 hours of closed conditions, a technician returns to process data & remove equipment.
- Single Family Residential: Immediate results upon pickup
- Commercial: Lab results available next business day
The 4.0 is the EPA action level for radon but the World Health Organization (WHO) guidelines recommends mitigation between 2-4 pCi/L as radon fluctuates over time. In the winter months, levels are higher due to the ground freezing and trapping radon in homes.
Commercial
Residential
Multi-Family
HUD Compliant
School Testing
Radon Services
New Construction
Radon-Resistant System Design
Testing & Mitigation
- Single Family Residential
- Commercial
- Multifamily Properties
- Housing & Urban Development (HUD)
- Schools & Childcare Facilities
Passive Radon Mitigation Systems
HRV Radon Mitigation Systems
Vapor Barriers
50% of homes in Colorado have high radon levels.
Are you and your family safe?
Find out fast with on-site results.
Get the Best WITH
M.A.R.S. Environmental
Get the Best WITH
M.A.R.S. Environmental
M.A.R.S. Environmental
5-Year Full Fan Replacement Warranty
5-Year Full Fan Replacement Warranty
Complimentary
Certified Retesting Kits
Complimentary
Certified Retesting Kits
Certified Retesting Kits
NRPP, AARST & HUD
Certified
NRPP, AARST & HUD
Certified
Certified
- Colorado law requires Radon measurement providers to be NRPP Certified by the Colorado Department of Regulatory Agencies (DORA)
- Our trained specialists follow Colorado AARST/NRPP, DORA & EPA guidelines for HUD government housing, childcare & school properties.
Below 3.9 pCi/L
Guarantee
Below 3.9 pCi/L
Guarantee
Guarantee
- If Radon levels rise within 30 days of testing and installation, we come back & adjust your system at no additional cost
The lowest level of a building is most likely to test high
for Radon. Who spends the most time in your basement?
Let’s make sure it’s safe down there.
Radon Testing & Mitigation Process
Radon Measurement Standards
According to the EPA & American Association of Radon Scientists & Technologists:
- 4.0 pCi/L or Higher → Recommend Mitigation
- 2.0 – 3.9 pCi/L → Consider Mitigation
Colorado State Radon Policies for Residential & Commercial
| Credential Required |  |
Private Certification with State license |
| Radon Standards in Effect | |
ANSI-AARST |
| Homebuyer Protection Required | |
Notification & Disclosure |
| Radon System Required for New Homes |  |
No |
|
|
N/A |
|
|
N/A |
| School Testing Required | |
Yes |
| Radon System Requirement for New Schools | |
Yes |
Commercial, Multifamily & Mixed-Use Buildings
Tenant Rights
Landlords & property management companies are required to test all rental properties for Radon. Tenants can vacate a lease with no penalty if high Radon levels are not mitigated within 180 days.
Lease Disclosures
Property-specific Radon disclosures must be included in lease agreements and provided to tenants prior to signing.
Rental Permits
Colorado requires a recent Radon testing report for rental property permits & renewals.
Single Family Residential
Homebuyer Rights
Colorado law mandates Homebuyer Notification & Disclosure for Radon
New Construction In Colorado
These local municipalities require new single-family homes to be built with Radon-Resistant Construction:
- The City of Boulder
- The City of Longmont
- The City of Louisville
- The Town of Erie
- The Town of Superior
- Unincorporated Boulder County
Federal Safety Guidelines
The EPA, U.S. Surgeon General, and CDC strongly recommend that all homebuyers conduct indoor Radon testing before purchasing or moving into a new home.
Testing is the ONLY way to know if Radon is a threat to your health, your family, and your property.
Hear What M.A.R.S. Environmental Clients Have to Say
We’ve been safeguarding air quality for Coloradans for over 20 years.
I highly recommend M.A.R.S. Environmental for testing and remediation work. They are extremely knowledgeable, responsive, and reliable. As a Realtor, my transactions often require their service and I have used them many times. They are my trusted experts!
Sherry C.
Boulder, CO.
Every basement remodel we complete we have M.A.R.S. Environmental test for Radon and mitigate when necessary. They are professional, clean, responsive and price competitive. I highly recommend M.A.R.S. Environmental.
Tyson R.
Boulder, CO.
Every basement remodel we complete we have M.A.R.S. Environmental test for Radon and mitigate when necessary. They are professional, clean, responsive and price competitive. I highly recommend M.A.R.S. Environmental.
Grant R.
Boulder, CO.
M.A.R.S. Environmental are truly the best. They are responsive, professional an amazing to work with. I would highly recommend Certified AIQ to everybody. You will not be disappointed working with this company.
Stephany O.
Boulder, CO.
Great experience working with the team here. We had a slightly tricky radon mitigation job (old house, many layers, etc.) and they were with us every step of the way.
Jeremiah E.
Boulder, CO.
We used M.A.R.S. Environmental for a complex radon mitigation issue in our historic house, built in 1892. They installed a unique mitigation system that is doing a fantastic job with a difficult basement. Highly recommend!
Donny M.
Boulder, CO.
Based on 73 reviews
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My heart goes out to anyone having to shop for post-disaster environmental testing, but I can enthusiastically recommend Jeanine and her team at M.A.R.S., especially to people dealing wildfire/WUI fire smoke damage.
Our house was in the heart of the Eaton Fire. It was left standing but smoke damaged. For four months, our insurer downplayed the health risks, offering to essentially wet wipe the walls and vacuum our bed after their own test found lead. They didn't address VOCs, SVOCs, heavy metals, though.
We knew that getting our own testing was the only way to push for a more thorough remediation. M.A.R.S came highly recommended by fire survivors in Colorado, also by local word of mouth, even by other industrial hygeniests and folks at United Policy Holders.
Jeanine fit us into one of the weekend trips she'd been doing to the Eaton Fire Scar this spring. And she tailored our tests to address our needs for our claim, and our financial limits. She asked for our prior test results so she could make sure she was only running tests we needed.
On the day, she showed up early. I was thrilled when she said we didn't need to enter the house. Also, her team wore protective gear. (For four months, everyone -- the insurance adjuster, other IH's, and others -- would enter the house casually, often with no masks or PPE, as if it were no big deal. I felt subtly peer-pressured to go in unmasked myself, to take and wash things, and now regret it.)
The results took a while, but the labs have been swamped, and M.A.R.S. was in touch. And when the results did come in, the level of detail and care with which Jeanine laid out her report was remarkable. And her explanations of results rigorously supported her recomendations. She included and referred to all the prior results. And she is up to date on current and emerging science and standards.
In many ways, the new results were bad news (the highest levels of Dioxins she'd seen in the area as well as Beryllium, which we're now learning has shown up in unprecedented levels in the Eaton Soot and Ash), but at least we are now armed with data.
I'm trying to think of constructive criticism, but I really just feel gratitude for Jeanine, Rebecca, and the whole team.
We're still going to have to fight to get the insurance to follow her recommendations so it's all still an ongoing nightmare. That said, the two moments of greatest relief I've felt since the fire were, first, when the M.A.R.S. team showed up at our house, and then later, when Jeannine sent our results. She's smart and talented, and I believe that she does this work because she genuinely cares about protecting people's health. She's a methodical hero :), a literal lifesaver!
Our house was in the heart of the Eaton Fire. It was left standing but smoke damaged. For four months, our insurer downplayed the health risks, offering to essentially wet wipe the walls and vacuum our bed after their own test found lead. They didn't address VOCs, SVOCs, heavy metals, though.
We knew that getting our own testing was the only way to push for a more thorough remediation. M.A.R.S came highly recommended by fire survivors in Colorado, also by local word of mouth, even by other industrial hygeniests and folks at United Policy Holders.
Jeanine fit us into one of the weekend trips she'd been doing to the Eaton Fire Scar this spring. And she tailored our tests to address our needs for our claim, and our financial limits. She asked for our prior test results so she could make sure she was only running tests we needed.
On the day, she showed up early. I was thrilled when she said we didn't need to enter the house. Also, her team wore protective gear. (For four months, everyone -- the insurance adjuster, other IH's, and others -- would enter the house casually, often with no masks or PPE, as if it were no big deal. I felt subtly peer-pressured to go in unmasked myself, to take and wash things, and now regret it.)
The results took a while, but the labs have been swamped, and M.A.R.S. was in touch. And when the results did come in, the level of detail and care with which Jeanine laid out her report was remarkable. And her explanations of results rigorously supported her recomendations. She included and referred to all the prior results. And she is up to date on current and emerging science and standards.
In many ways, the new results were bad news (the highest levels of Dioxins she'd seen in the area as well as Beryllium, which we're now learning has shown up in unprecedented levels in the Eaton Soot and Ash), but at least we are now armed with data.
I'm trying to think of constructive criticism, but I really just feel gratitude for Jeanine, Rebecca, and the whole team.
We're still going to have to fight to get the insurance to follow her recommendations so it's all still an ongoing nightmare. That said, the two moments of greatest relief I've felt since the fire were, first, when the M.A.R.S. team showed up at our house, and then later, when Jeannine sent our results. She's smart and talented, and I believe that she does this work because she genuinely cares about protecting people's health. She's a methodical hero :), a literal lifesaver!
Just hired MARS environmental to do a meth test for a home we have under contract. They got me setup with an appointment fast. The tester arrived on time, was friendly and explained everything. I recommend!
I loved how responsive MARS was! I filled out the "contact us" form on their website and heard back via email within 24 hours. We scheduled a same-week appointment. I was emailed an estimate and invoice. They requested a deposit of $100 on a $400 invoice which seemed completely reasonable to me.
I received appointment reminders via text and email. The tester/employee showed up on time and I received a results phone call within 24 hours. I know I'll receive the emailed results within another work day, but they were able to call and give me the peace of mind sooner rather than later.
If you're looking for a quick and professional company, I'd highly recommend MARS Environmental.
I received appointment reminders via text and email. The tester/employee showed up on time and I received a results phone call within 24 hours. I know I'll receive the emailed results within another work day, but they were able to call and give me the peace of mind sooner rather than later.
If you're looking for a quick and professional company, I'd highly recommend MARS Environmental.
Jeanine and Mars Environmental are Exceptional! They not only helped me with the scientific analysis to impress upon my insurance company to do what was right, and fair but they also held my hand throughout the process. Jeanine and her team went above and beyond to help us. We are very grateful.!
Jeanine and her team are amazing. They are very thorough and will educate you on what they are testing for, why they are testing and the steps that need to be taken after. I highly recommend MARS for all your testing needs. Very friendly, professional and trained.
They were very communicative upfront, and continue to be very responsive. They worked with our budget, doing necessary tests. They wrote an extensive report and included remediation recommendations based on the data, which is really hard to find these days. Super grateful for this team!
What a great company! My husband and I are currently under contract with a home. We had a last minute mold inspection and they were able to schedule us in the next day. Very little notice! Linzy did an amazing and thorough job! She knows what she is doing and very pleasant to work with. We are very grateful they were able to squeeze us in their busy schedule. 100% recommend!
Jeanine was amazing to work with and offered a quick response every time we had a question. Fair pricing, quick turn around on the job and we had the best Radon Guy, Geovanni, come out to put in our new system. Thank you Jeanine for helping us keep our family safe and healthy!!!
Jeanine has been the lighthouse guiding us through the tumultuous storm following the damage to our home from the Eaton Fire. Her deep knowledge and experience in fire science has helped us decide on a course of action in dealing with the damage, and provided us with a view to a way forward.
I recently paid for a meth test for a house I’m about to purchase. Jeanine was early to the appointment, professional, and worked quickly but thoroughly. I highly recommend this company for any environmental testing you need done.
Jeanine is a very hardworking individual who strives for excellence ALL the time! I really appreciate that she took the time to correct our report, even though she was busy traveling to another state for work. Her work is very thorough. I will defiantly use her again because she is the best!!!
These folks care and do great work. They take responsiblity for the work they do and are not satisfied until you are satisfied.
These guys are great, they explained the process, brought in a team of people to test all my projects surfaces that were required and were able to get results back within 24 hours. Customer service is on point!
Amazing service. Excellent education. I have full confidence that my concerns will be completely addressed. Highly recommend if you’re worried about your air quality!
Great service! The work was done efficiently and the tech explained everything. Highly recommend.
Such a fantastic company. They did radon mitigation for a property and knocked it out of the park. It was not an easy space to mitigate in, but they figured out the perfect solution. Timely and price was good as well.
Fantastic group of people. They are fast and friendly. We are an asbestos removal company and love referring them out to clients. Keep up the great work!
Certified IAQ’s process for environmental testing was an easy and straight forward process. We will use them again in the future. Thank you again Linzy and Jeanine!
FAQs
It is important to test for Radon prior to any real estate transaction and then again every 2-3 years to ensure safety and verify that the mitigation system is operating properly.
With a passive system built into the foundation, you avoid visible equipment on the building exterior and take advantage of an organic venting solution that doesn’t require electricity or contribute to utility bills. At most, the addition of a fan can activate the system to keep Radon levels at a minimum. The cost of fixing a Radon problem can be significantly more expensive than preventing one.
Radon is measured in picocuries/liter (pCi/L) and the EPA standard is < 4.0 pCi/L. Our mitigation services come with the guarantee that your levels will stay at or below 3.9 pCi/L.
If radon testing reveals elevated levels, don’t panic. M.A.R.S. Environmental can design and install a custom system tailored to your property. Radon mitigation systems can effectively reduce radon concentrations. These systems typically involve venting radon gas from the soil beneath your property out to the exterior so it can’t affect indoor air quality.
Well-maintained mitigation systems and fan components should last for many years, but it is important to retest your property every 2-3 years and inspect the system to verify proper function.
We Offer Testing & Remediation Anywhere in Colorado &
the Denver Metro Area:
- Anthem
- Arvada
- Boulder
- Brandywine
- Brighton
- Broadlands
- Broomfield Country Club
- Central Park/ Stapleton
- Commerce City
- Cotton Creek
- Country Estates
- Erie
- Five Points
- Golden
- Highland
- Jefferson Park
- Lafayette
- Legacy Ridge
- Longmont
- Louisville
- North Park
- McKay Landing
- Northglenn
- Reunion
- Sloans Lake
- Stratford Lakes
- Superior
- Thornton
- Westlake Village
- Westminster
- 115th and Kendall
