Radon Mitigation Longmont
Fast, certified residential radon systems designed for Longmont homes—installed in one visit and guaranteed below 2.7 pCi/L for life.
2.7 pCi/L
Guaranteed result
3–4 hours
Typical installation
100%
Perfect 5-star reviews
Local radon expertise
A safer Longmont home starts below the foundation
Local coverage
Boulder and Weld counties · ZIP codes 80501, 80503, 80504
Longmont spans historic blocks, postwar neighborhoods, rural-edge properties, and substantial newer development across Boulder and Weld counties. Homes can have stone or block foundations, full basements, crawlspaces, sump pits, additions, and newer passive radon rough-ins.
We inspect those features before designing the active system. The objective is to capture soil gas beneath every occupied foundation zone, route it safely above the roof, and keep the equipment accessible for long-term monitoring and service.
Most Longmont residential systems are installed in 3–4 hours. We guarantee post-install levels below 2.7 pCi/L, include a lifetime warranty, and provide a complimentary test kit with the free estimate.
Radon has no color, smell, or taste. A professional test and a system designed around your actual foundation are the reliable path to a verified result.
Foundation-specific design
The right mitigation method for your home
Every system uses active soil depressurization, but the way we collect soil gas depends on the foundation beneath your lowest occupied level.
Basement & sump systems
A sealed sump lid or sub-slab suction point captures radon beneath the concrete before it reaches finished living space.
Crawlspace mitigation
A durable, sealed membrane covers exposed soil and connects to active suction for continuous soil-gas control.
Slab & mixed foundations
One or more carefully placed suction points create negative pressure across slab-on-grade, additions, and split foundations.
Real residential work
Installed by Custom Radon Solutions
Built for local homes
Radon system design across Longmont’s housing eras
Older Longmont houses may include shallow crawlspaces, remodeled basements, or additions built on different foundation types. Newer subdivisions commonly use full basements and may include passive piping that still requires testing and evaluation.
Our design combines sealing and active suction in the way the building requires. We explain how to read the manometer, what the fan should sound like, and when to retest so the homeowner can monitor the system confidently.
What matters locally
Planning for Longmont foundations
Local housing patterns inform the inspection, but the final design always follows the conditions at your property.
Historic foundations
Older foundation materials and additions can create several soil-gas entry paths.
Boulder–Weld coverage
We serve Longmont properties on both sides of the county line.
Crawlspace and sump homes
Membrane sealing and sump integration can be combined with active suction as needed.
Simple from start to finish
Our Longmont radon mitigation process
01
Test and inspect
We review your radon result and inspect the foundation, sump, crawlspace, utilities, and possible pipe routes in person.
02
Design the right system
You receive a clear plan for suction points, fan placement, discharge location, sealing, price, and expected installation.
03
Install in one visit
Most residential systems are completed in 3–4 hours with careful protection of the home and a clean finished route.
04
Verify the result
Post-install testing confirms performance. We guarantee levels below 2.7 pCi/L and back the system with a lifetime warranty.
Our work
Residential systems, professionally installed
Real Custom Radon Solutions installations across the Denver metro and Front Range.
Our Achievement
What Our Clients Are Saying
Denver homeowners trust us to protect their families from radon's silent danger—here's what they have to say about our fast, reliable service.
“I was terrified when I learned radon could be lurking in my home, putting my kids at risk for lung cancer. Custom Radon made it so easy—they came out for a free estimate, tested my levels, and installed a system in just a few hours. I sleep better knowing my family is safe now!”
Sarah T. · Denver
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Questions answered
Radon mitigation FAQ for Longmont
Get direct answers about testing, installation, pricing, guarantees, and foundation-specific system design.
How long does radon mitigation take in Longmont?
Most residential radon mitigation systems in Longmont are installed in one 3–4 hour visit. Homes with multiple foundations, finished basements, or crawlspaces may require additional planning, but we explain the routing and scope before work begins.
What result do you guarantee for Longmont homes?
Custom Radon Solutions guarantees post-mitigation levels below 2.7 pCi/L and backs the installed system with a lifetime warranty. A post-install test confirms the system is performing as designed.
How much does radon mitigation cost in Longmont?
Pricing depends on the foundation, number of suction zones, pipe route, crawlspace conditions, and fan requirements. We provide a free in-person estimate so you receive a system-specific price instead of a generic range that may not fit your home.
Do you provide a free radon test kit in Longmont?
Yes. Schedule a free in-person estimate and we provide a complimentary radon test kit. Testing helps establish the starting level and post-install testing verifies the result.
Do you serve all of Longmont?
Yes. We serve Longmont addresses in both Boulder County and Weld County, including established neighborhoods and newer development.
Can you mitigate an older Longmont home?
Yes. Older foundations may require additional sealing or multiple collection areas, but active mitigation can be designed for stone, block, concrete, crawlspace, and mixed-foundation homes.
Nearby service areas
Radon mitigation near Longmont
We serve homeowners throughout the Denver metro, Boulder County, and nearby Front Range communities.
Get your free estimate in under a minute
Answer a few quick questions and we’ll get right back to you—often the same day. No obligation, no pressure, just a clear plan to make your Denver home safe.
Same-day response
Request before 2pm and we’ll usually reach out today.
Guaranteed results
We guarantee radon levels below 2.7 pCi/L.
Certified & insured
Backed by a lifetime system warranty.