Grand Junction Radon Mitigation: Radon System Installation, Testing, & Repair
Certified Services with 20+ Years of Experience
Grand Junction Radon Mitigation tests radon levels and installs systems to lower those levels in Grand Junction and the surrounding Grand Valley. We follow Colorado and national standards and handle the whole process, from testing to installation to replacement/repair.
Guaranteed Radon Drop Target
We guarantee your post-mitigation radon test will measure below 4.0 pCi/L, the EPA action level. If it doesn’t, we’ll adjust your system at no extra cost. See our guarantee terms below.
Cost Transparency
Standard sub-slab systems typically cost anywhere from $1,200-$3,000. We offer clear, itemized quotes with no hidden fees.
Colorado-Licensed & NRPP-Certified
Our Colorado-licensed & NRPP-certified team handles everything, from local permits and licensed electrical work to certified testing after mitigation. One contract covers the entire installation and makes sure everything meets regulations.
3-5 Hour Install & 3 Day Results
Our certified team usually completes installations in a single day, most within 3-5 hours. Once the system has had 24 hours to run, post-mitigation testing can begin. Results will usually be provided within 3 days of install. We meet your real estate deadlines without ever compromising on quality or safety.
Quiet by Design Fan System
Our systems are quiet by design. We use vibration-dampening mounts and acoustic housing (where needed), and place fans away from living spaces and neighbors to keep the noise down.
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Why Grand Junction Radon Mitigation Is a Trusted Choice in Grand Junction, Colorado
Mesa County is classified as an EPA Radon Zone 1, the highest-potential category, which means the ground beneath Grand Junction produces high levels of radon. If you own a home here, indoor radon may be higher than the acceptable radon EPA action level of 4.0 pCi/L. Testing is the only way to know for sure.
Our NRPP-certified team understands how radon moves through soil and foundations in this region. We design each mitigation system around your home’s foundation, soil, and layout instead of applying a single approach to every project and property.
All of the systems we design and install meet Colorado radon licensing rules and the ANSI/AARST standards adopted by the state.
Residential Radon Mitigation Services
We provide testing, installation, and follow-up support across Grand Junction and the Grand Valley, tailored to your foundation and whether the home is new or existing.
Grand Junction Radon Mitigation begins each project with short-term, accurate testing, which usually takes 48 hours, but can run up to 7 days.
We use continuous radon monitors and EPA-approved testing protocols to measure radon in your home from the lowest lived-in area. We avoid drafts and moisture to ensure accurate results.
You’ll receive a written report with your radon level in pCi/L. The EPA recommends taking action at 4.0 pCi/L or higher. We’ll explain your results and whether mitigation is recommended.
Radon Mitigation System Installation
If testing confirms high radon, we install a system tailored to your foundation that vents radon out from beneath your home.
A standard installation includes:
- A PVC pipe routed from the foundation to the exterior of the house
- An inline fan to maintain consistent airflow
- A manometer to monitor system suction
- Sealing of foundation cracks and openings where radon gas can enter
We route piping and position fans to minimize visual impact and indoor noise. Typical installation takes around 3-5 hours.
Basement Radon Mitigation
Basements sit closest to the soil, so they often show the highest radon readings in a home. We install sub-slab depressurization systems that vent gas from beneath the floor outdoors.
This requires drilling a suction point through the slab and sealing visible cracks, sump covers, and utility openings, since open sump pits can let soil gas enter.
We route the vent pipe from the basement through the home and above the roof; routing and fan placement depend on the basement layout.
Crawl spaces require a different method than basements. We typically install a sub-membrane depressurization system, which involves covering the crawl-space floor with plastic and sealing it to the foundation walls.
A suction point beneath the membrane draws radon away before it enters the home. Sealing gaps around piers, utilities, and vents is essential, and the membrane also helps control moisture.
Radon Mitigation for New Homes
New construction allows us to install passive or active radon-resistant features before the home is finished, which costs less than retrofitting later. We work with builders to install a vent pipe and gas-permeable layer under the slab during foundation work.
A fan can be added if testing finds elevated levels. We recommend testing every new home once construction is completed and the home is occupied. Soil and building methods vary and natural uranium makes elevated readings common in Grand Junction.
Radon Mitigation for Home Buyers and Sellers
We provide radon testing and mitigation in Grand Junction to fit closing timelines. Sellers can test before listing, and buyers can arrange prompt mitigation if results are high.
We provide documentation that satisfies lender and real estate requirements, including test results confirming radon fell below the EPA action level after mitigation.
Commercial Radon Testing and Mitigation
Commercial properties fall under different testing and square-footage requirements than single-family homes. Grand Junction Radon Mitigation designs these systems according to the building's size, HVAC configuration, and intended use.
Commercial Building Radon Mitigation
Commercial buildings have varied airflow and HVAC systems, so we follow ANSI/AARST standards for schools and large buildings. We test multiple zones, tailor mitigation to the building, and verify radon levels are below 4.0 pCi/L.
We coordinate with facility staff to minimize disruption and downtime.
School and Institutional Radon Services
Grand Junction Radon Mitigation helps schools test for and reduce radon. We identify high levels, plan solutions for each building, and check the results.
We work with school administrators, facility managers, and maintenance teams to lessen disruption to school activities.
Commercial New Construction and Radon-Resistant Systems
We help contractors and developers install radon-resistant features during construction (which costs less than after the fact), including gas-permeable material, a sealed vapor barrier, vent piping, and a fan-ready junction box.
We also provide testing and designs that meet ANSI/AARST CC-1000, the standard for new commercial construction.
Multifamily and Apartment Radon Mitigation
Multifamily buildings require testing in a sample of units following ANSI/AARST MAMF protocols, starting on the ground floor, where radon is often highest; mitigation may need multiple suction points and fans.
We coordinate with owners and HOAs to minimize disruption and provide clear records for residents and prospective buyers.
Radon Specialty Services, Repairs, and Replacements
Not every radon job is new installation. Many homeowners already have a system in place that needs repair, maintenance, or an upgrade. We handle those jobs with the same attention we give new installs.
A radon system that isn't working properly puts your home back at risk. We diagnose problems with existing systems, including cracked piping, failed seals, and damaged vent stacks.
Common problems we find include:
- Disconnected or loose pipe joints
- Cracked or degraded PVC piping, which can occur from age or UV exposure
- Improperly sealed sub-slab suction points
- Blocked vent caps or exhaust points
We service systems whether we installed them originally or not. Once we identify the problem, we provide a written repair estimate before starting any work.
Radon fans usually last 5 to 10 years, depending on the model and how they’ve been used. If a fan stops working or becomes much louder, its motor or bearings may be wearing out. We check that the fan works adequately to keep your home's radon levels down before suggesting a replacement.
If a new fan is needed, we choose one that matches your system’s original design, including its airflow and pipe size. We stock replacement fans for most major brands used in the Grand Valley.
Replacing a fan usually takes one visit. While we’re there, we also check the nearby pipes and seals to make sure the whole system is working properly.
Radon System Maintenance and Inspection
Routine inspections catch small problems before they can become system failures.
We recommend checking your system's manometer reading periodically to make sure the fan is maintaining proper suction. A reading outside the normal range is often due to a blockage or leak somewhere in the system.
Our maintenance visits include:
Check
Manometer reading
Fan sound and vibration
Pipe joints and seals
Vent termination point
Purpose
Confirms fan suction
Checks for motor wear
Finds leaks or cracks
Confirms adequate exhaust clearance
We document findings and flag anything that needs follow-up repair.
Radon Mitigation System Upgrades
Older or minimally compliant systems may need upgrades to handle higher radon levels or home changes.
Renovations that add space, finish a basement, or change the foundation can affect how radon enters your home. The existing system may no longer protect the entire house. In these instances, we upgrade systems by adding suction points, installing higher-capacity fans, or rerouting piping.
We re-test radon levels after any upgrade to confirm the radon levels are below the EPA action level of 4.0 pCi/L.
Radon Mitigation System Troubleshooting
When the system shows warning signs, such as a manometer reading that has changed, a fan that has stopped or become noisy, an alert from a Wi-Fi monitor, or a high test result, we check it step by step. First, we check the fan. Next, we inspect the piping and joints. Finally, we check the seals around the foundation.
This helps us find the core problem and avoid replacing parts that still work. Some issues stem from external factors unrelated to the mitigation system itself, including:
- Changes in soil moisture that reduce suction efficiency
- New cracks in the foundation slab
- HVAC changes that alter home pressure dynamics
We explain the issue and discuss options before recommending repair or replacement.
Passive-to-Active Radon System Conversion
Some newer homes have passive radon systems with pipes but no fan. These systems use natural air movement and may not lower radon levels enough.
If levels remain at or above the EPA action level of 4.0 pCi/L, we can add a fan to the existing vent pipe to make the system active. Using the existing pipe keeps the work simpler than installing a new system.
We test radon levels before and after the upgrade to make sure they fall to an acceptable level.
Understanding Radon in Your Home in Grand Junction, CO
Radon can enter homes through foundation cracks, and many Mesa County properties are at a higher risk. Knowing its health risks and safety thresholds helps determine when mitigation is needed.
Radon Gas, Health Risks, and Recommended Action Levels
Radon is a gas that forms naturally as uranium breaks down in soil and rock. You can’t see, smell, or taste it, so testing is the only way to detect it.
Radon can enter homes through cracks, sump pits, and crawl spaces, then build up to much higher levels than the outside air. Long-term exposure can harm your health. The EPA says radon is the second-leading cause of lung cancer in the United States, after smoking. The risk is greater when radon levels are higher and/or exposure lasts longer.
We measure radon in picocuries per liter (pCi/L). The EPA and Colorado health officials recommend action at the following levels:
Radon Level
Below 2.0 pCi/L
2.0–3.9 pCi/L
4.0 pCi/L or higher
Recommended Action
No mitigation required
Consider mitigation
Mitigation recommended
We routinely find elevated readings in Grand Junction homes, specifically due to local geology. A high result does not mean the house was built poorly.
Radon Mitigation Expertise
Grand Junction’s geology often leads to elevated radon levels. Our certified technicians understand local soil and building conditions and follow EPA guidelines and Colorado requirements. They hold current certifications in radon measurement and mitigation.
Our approach includes:
- Diagnostic testing to find accurate radon concentrations in your home
- Custom system design based on your home's foundation type and layout
- Sub-slab depressurization installation for basements and slab-on-grade homes
- Crawl space mitigation for homes without a basement
- Post-installation testing to confirm the system is working
- Licensed and insured technicians
- Clear communication throughout testing and installation
Our team has installed mitigation systems across Mesa County, from downtown Grand Junction to the surrounding neighborhoods. We know which fan placements work best for local soil types, and we size each system according to the specific radon levels found during testing.
We also stay current with changes to radon testing protocols and mitigation standards. This means the systems we install today reflect current best practices, not outdated methods.
The Radon Mitigation Process
Radon mitigation involves assessing your home, installing a suitable system, and confirming results with follow-up testing.
Radon Assessment and System Planning
Before installation, we assess your foundation, soil, radon levels, and HVAC layout to identify entry points and design a system suited to your home.
We consider foundation type, soil permeability, radon concentration, home layout, and fan placement.
Radon Mitigation Installation and Timeline
Most installations take one day, but larger homes may take longer. We install a vent system that draws radon from beneath the foundation and releases it above the roof.
Most homes use sub-slab depressurization, while crawl spaces may need sub-membrane depressurization: a sealed vapor barrier with a suction point under it.
Post-Installation Testing and Verification
After installation, we let the system run for at least 24 hours, then run a 48-hour test using EPA-recommended methods. If radon levels exceed 4.0 pCi/L, we adjust the system at no additional cost and retest. See our guarantee terms below.
It's important to recheck radon levels in your home every two years, since levels can change.
Radon Mitigation Costs and Pricing in Grand Junction, CO
Radon mitigation costs in Grand Junction vary depending on your foundation, system design, and whether you need installation or repairs. See typical prices below.
Guarantee Section
What we guarantee: A post-mitigation test result below 4.0 pCi/L, measured by us or another licensed Colorado radon measurement professional after the system has run at least 24 hours under closed-house conditions.
If it doesn’t: We adjust or repair the system at no additional cost until it meets the target.
How long it lasts: Applies to the initial post-mitigation test.
What’s not covered: Results affected by changes made after installation (renovations, a finished basement, new foundation cracks, HVAC changes), tampering or modification by others, power interruptions, and fans outside their manufacturer’s warranty.
Other warranties: The fan carries its manufacturer’s warranty. Our workmanship warranty is 1 year.
To make a claim: Call us or fill out our quote box. We respond within 1 business day.
Radon Mitigation Service Areas around Grand Junction, CO
We provide services in Grand Junction and the surrounding Grand Valley. Because ground conditions vary by neighborhood, radon levels can differ from home to home. Our team understands these local differences.
Our service area includes:
We work on homes, commercial buildings, and new construction. We can design a radon mitigation system for your property, whether it’s an older downtown home or a new building outside town.
Not sure if we serve your area? Contact us and we'll let you know.
Our team is licensed by the State of Colorado for radon measurement and mitigation and holds NRPP certification. We follow state and national radon standards to ensure our systems meet current safety and performance requirements throughout the Grand Valley.
Get a Custom Radon Mitigation Quote in Grand Juction, CO
We offer free radon mitigation quotes with no obligation. Each quote is based on your home’s foundation, layout, and radon levels.
Share any test results and schedule a home visit. We’ll explain the recommended system, cost, and timeline.
Need a radon test? We can arrange one. Contact us to schedule an assessment.
Frequently Asked Questions
The EPA recommends taking action if your radon level is 4.0 pCi/L or higher by installing a mitigation system.
Radon levels are often higher in Colorado than elsewhere in the country. The soil and rock in Mesa County can also lead to even higher levels in many local homes.
No level of radon is completely safe. Levels between 2.0 and 4.0 pCi/L still pose some risk, so we can discuss ways to lower your radon even if your result is below 4.0 pCi/L.
You can have a short-term test done (48 hours–7 days) for quick real estate results or a long-term test (over 90 days). We place devices in the lowest occupied area, since radon tends to seep through the foundation.
We require closed-house conditions, meaning windows and doors closed, except when entering or leaving. Professional testing includes placement, continuous monitoring, and a written report. Long-term tests are sent to a lab for analysis.
Costs depend on your home’s foundation, size, and crawl space or basement. A typical sub-slab depressurization system for a single-family home costs within a standard range ($1,200-$3,000). Commercial buildings, larger homes, or homes with more than one foundation type may cost more.
We’ll provide a written quote after reviewing your home. The final price also depends on where we place the fan, route the pipes, and install the outside vent.
Long-term exposure to high radon levels increases lung cancer risk, especially for smokers. The EPA reports that radon reduction systems can lower levels by up to 99%. We recommend scheduling mitigation promptly after a high result. Read the EPA’s A Citizen’s Guide to Radon for more information.
Most radon systems use a pipe that runs through the foundation into the soil beneath the home. A fan pulls radon through the pipe and releases it above the roof, away from windows and doors. This keeps radon from entering the home in the first place, rather than filtering it after it gets inside.
We design each system for the home’s foundation, such as a basement, crawl space, or concrete slab. Crawl spaces typically use a sealed vapor barrier with a suction point beneath it.
We install a manometer on every system. This small, U-shaped gauge shows whether the fan is creating suction under the slab, so you can quickly check that the system is working. Wi-Fi smartphone monitoring is an optional upgrade.
We let the system run for at least 24 hours, then run a 48-hour test to confirm radon levels have dropped. After that, we recommend testing every two years.
Contact us for an inspection if the gauge reading changes a lot or the fan stops working. Fan motors may need replacing after 5 to 10 years.
We adjust the system at no additional cost and retest until it meets the target. See our guarantee terms for details.