Radon Testing & Mitigation
Testing for radon is the first step towards protecting the health of your family.
SERVING CENTRAL & WESTERN UNITED STATES
- 25+ Years of Experience
- High-Accuracy Testing
- Fully Insured
- 25+ Years of Experience
- High-Accuracy Testing
- Fully Insured
Hear What M.A.R.S. Environmental Clients Have to Say
We’ve been safeguarding air quality for over 20 years.
4.9
Based on 105 reviews
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gina bliss
1 week ago
Anne Shaw
1 week ago
My experience with them as always been professional, with integrity, and knowledgeable. I'm a real estate agent that has referred many clients.
Carol March
2 weeks ago
they were very quick to set up an appointment, arrived right on time and their representative was knowledgeable and very pleasant. It was a good experience and I recommend MARS Environmental!!
Mark Guthrie
1 month ago
Very timely and extremely professional!
Sue Iten
2 months ago
Extremely Professional and knowledgeable. On time for the appointment. Great Service!
Christianna Wood
2 months ago
They were thorough and did a good job.
Kathryn Wilson
2 months ago
Zachary Atkins
3 months ago
Incredible and professional service, very reasonable pricing, and great explanation and report of results. Highly recommend for you mold testing needs!
Eric Dillon
4 months ago
i am writing to provide the highest recommendation for MARS environmental. I suffered an electrical fire that left my house in-tact but we knew that there was toxic residue left by this fire, our insurance company wanted to do simple cleaning - we turned to MARS and had them do a full test of our house. They were professional, timely and the report they produced was exhibit #1 in our battle with the insurance company. It is important to know that MARS reports the facts, it is not subjective or legal positioning and the facts fully supported a full tear down of our structure. If we had only cleaned, our health would have been compromised and that is what the insurance company wanted to do. Jeanine and the MARS team are very professional, responsible and i would give them my highest rating for any situations that involves assessing environmental chemical issues. Signed - very happy in Montana
Leslie Cooper
6 months ago
The best company. Highly recommend. We were in the Altadena fire and they were incredibly thorough and knowledgeable with all the testing and the reports. They have made our family feel safe after such a traumatic event.
K Hensel
6 months ago
Prompt and professional service. Worked with me for the best placement of Radon Mitigation- Sub Slab equipment to be least invasive to my indoor and outdoor area. Quick and seemless install. Would highly recommend.
Debbie Reideler
7 months ago
Appreciated the professionalism and promptness of Gio. He was very knowledgeable and it was a pleasure getting to know him. He is such an upstanding guy and would be welcomed back for future work. We highly rate him at the top of the list! Thanks again Gio!
David Szamet
8 months ago
MARS / Jeanine is a true advocate for a homeowner. In a complex world with interests aligned against full recovery, Jeanine helped us understand what was in our home after the Eaton Fire and provided the appropriate guidance for real remediation.
She is fully committed to safety and doing things the right way. I have referred Jeanine to so many friend at this point and all of them have thanked me for the introduction.
If you are looking for a thorough and comprehensive hygienist then MARS is the choice.
Tim Newcomer
8 months ago
If you have mold or asbestos Jeanine and her team at Mars environmental or your people, they currently came to my house and tested for radon and I have a system put in now we can sleep well at night, knowing that our levels are now controlled with the unit that they put in thanks Jeanine at Mark environmental we’re keeping us safe
Jeff
8 months ago
MARS provided a very good experience for us. They were prompt, professional, knowledgeable, and always responsive and sympathetic to our needs. I highly recommend this company and the people who work there.
Patricia Smith
10 months ago
The staff was friendly and helpful from start to finish. They explained the process clearly, the technician answered all my questions on-site, and the results were provided promptly. While the results weren’t ideal, I’m glad I had the testing done and would use them again for future properties.”
Lara L
11 months ago
What a great company and wonderful people to be helped by. It's a family run business with knowledgeable, caring people who have information, compassion and support - they know the stress and angst that can be there with concerns of environmental issues in our homes. They are patient, kind, helpful and I feel supported knowing they are there for me should I need more help in the future. This itself feels good. I like the personal quality of their communication and business. They did testing for me and explained in detail the results so I feel clear about how to proceed. I highly recommend M.A.R.S. Good to have tested for VOC's and other items they thought needed testing. I wasn't sold unnecessary tests, I didn't feel taken advantage of, or pushed to do things that weren't necessary. All around a good and educational experience considering what it is.
Thank you Jeanine, Lindsay and Brooke. I hope it's okay to use your names! If not, tell me and I'll edit them out!
Danielle Baldaro
11 months ago
Thank you Jeanine and the entire MARS team. Not sure what we would have done without your guidance through this time! I appreciate the work you’re doing to keep us all safe. Thank you to your hard work, honesty, attentiveness and dedication to this work.
Mark Johnson
1 year ago
Jeanine, the owner, demonstrated exceptional expertise in environmental testing after the fire at my house. She provided thorough explanations of how fire and smoke impact homes and air quality, and clearly outlined the necessary steps for restoration. Her professionalism and knowledge were impressive, and I appreciated her informative approach to getting my home back to a safe and healthy state.
Lori Halbach
1 year ago
MARS environmental is excellent, has great communication, and is reasonably priced. They were able to replace our radon system that was not up to code before we closed on our house.
Highly recommend!
Rachel Sondag
1 year ago
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!
House Six Design
1 year ago
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!
Rachel
1 year ago
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.
Rachel Courtney
1 year ago
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.
Jen A
1 year ago
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.!
Artie Barcelo
1 year ago
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.
Hannah Parikh
1 year ago
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!
Lindsy Rossen
1 year ago
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!
GatorJosh01
1 year ago
Mike Barnhill
1 year ago
Thanks Jeanine and Lindsey!
Monica Piguee
2 years ago
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!!!
Mary D. McGinnis
2 years ago
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.
Laura Wohlfort
2 years ago
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.
Karen Yoho
2 years ago
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!!!
Jonathan Greschler
2 years ago
These folks care and do great work. They take responsiblity for the work they do and are not satisfied until you are satisfied.
MARIA GRANADOS
2 years ago
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!
FTR Coaching
2 years ago
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!
Jessica Urdinola
2 years ago
Great service! The work was done efficiently and the tech explained everything. Highly recommend.
Mark Kruse
2 years ago
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.
Joel Egelman
2 years ago
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!
Adrienne S.
2 years ago
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!
Radon Is a Dangerous Radioactive Gas That You Can’t See 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 & the Midwest have some of the highest radon levels in the nation
Colorado and the Midwest sit on granite, which naturally contains uranium that produces radon as it decays in the soil. Radon concentration levels are especially high in these areas during winter.
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 (CRM) for most testing, and provide aircheck devices after mitigation at no charge.
3
Fast Results
After 48 hours of closed conditions, a technician returns to process data & remove equipment.
- Single Family Residential: Immediate results upon pickup
The EPA action level for radon is 4.0 pCi/L; however, we recommend mitigation between 2-4 pCi/L as radon fluctuates over time, and levels increase in the winter due to the frozen ground trapping radon in homes.
Residential
Radon
Services
Residential Radon Services
New Construction
Radon-Resistant System Design
Testing & Mitigation
- Single Family Residential
- Multi-family Properties
- Housing & Urban Development (HUD)
Passive Radon Mitigation Systems
HRV Radon Mitigation Systems
Vapor Barriers
Commercial & Residential
Radon
Services
Commercial & Residential Radon Services
New Construction
Radon-Resistant System Design
Testing & Mitigation
- Single Family Residential
- Commercial
- Multi-family Properties
- Housing & Urban Development (HUD)
- Schools & Childcare Facilities
Passive Radon Mitigation Systems
HRV Radon Mitigation Systems
Vapor Barriers
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
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
The lowest level of a building is most likely to test high
for radon. Who spends the most time in your basement?
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 Standards & Regulations
Federal 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
Federal Homebuying 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.
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
Colorado Homebuyer Rights
Colorado law mandates Homebuyer Notification & Disclosure for radon.
New Construction in Boulder County, CO
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
Nebraska State Radon Policies for Residential & Commercial
New Construction in Nebraska
Nebraska Revised Statute 76-3504 requires all new construction that is built after 2019 and that will be regularly occupied by people to be built using radon resistant new construction (RRNC).
-
- Local building codes must enforce these standards
- RRNC includes three approaches: barrier methods, reduction in radon entry driving forces, and passive system installation
- “New construction” includes single- and multi-family homes and any building used for commercial, industrial, educational, or medical purposes
- Read the Nebraska Radon Resistant New Construction (RRNC) law summary for more details and exemptions
Testing is the ONLY way to know if radon is a threat to your health, your family, and your property.
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 Radon Testing & Mitigation in:
- Colorado
- Nebraska
- Nevada
- California
- Wyoming
- Iowa
Our Locations
-
call us
720-388-8448 -
Colorado Location:
580 Burbank St, Unit 115, Broomfield, CO 80020
-
Nebraska Location:
3909 Cumming St, Ste 201, Omaha, NE 68131
