
Radon Mitigation Littleton
Fast, certified residential radon systems designed for Littleton 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 Littleton home starts below the foundation
Local coverage
Arapahoe, Jefferson, and Douglas counties · ZIP codes 80120, 80121, 80122, 80123, 80127, 80128
The Littleton mailing area spans historic neighborhoods, mature suburban communities, and foothill-adjacent development. Homes may include older full basements, crawlspaces, additions, walkout levels, and newer engineered foundations. Each condition changes how soil gas moves beneath the structure.
We test assumptions before choosing equipment. The estimate considers slab communication, exposed crawlspace soil, sump openings, finished areas, and the best exhaust route. This foundation-first approach supports stronger results and avoids unnecessary visual impact.
A standard installation usually takes 3–4 hours. Every Custom Radon Solutions system is backed by a lifetime warranty and a guarantee that post-mitigation radon will be below 2.7 pCi/L.
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
A system matched to your Littleton-area foundation
Old Littleton homes and later suburban development can differ significantly in slab construction and drainage. Foothill-adjacent properties may also have walkout basements or crawlspaces that require membrane sealing in addition to sub-slab suction.
We design combination systems when the home needs them and keep simpler homes simple. Homeowners receive a clear explanation of how the suction point, manometer, fan, and exhaust work together.
What matters locally
Planning for Littleton foundations
Local housing patterns inform the inspection, but the final design always follows the conditions at your property.
Broad housing area
The Littleton service area spans historic, suburban, and foothill-adjacent construction.
Walkout foundations
Sloped sites and multiple lower-level elevations can affect pressure-field coverage.
Crawlspace transitions
Exposed soil and basement slabs can be treated together in a properly designed combination system.
Simple from start to finish
Our Littleton 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 Littleton
Get direct answers about testing, installation, pricing, guarantees, and foundation-specific system design.
How long does radon mitigation take in Littleton?
Most residential radon mitigation systems in Littleton 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 Littleton 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 Littleton?
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 Littleton?
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 the wider Littleton mailing area?
Yes. We serve Littleton addresses across Arapahoe, Jefferson, and Douglas counties, including nearby foothill and south-metro neighborhoods.
Can you mitigate a home with both a crawlspace and basement?
Yes. The crawlspace can be sealed with a durable membrane while the basement receives sub-slab or sump-based suction. The zones may connect to one properly designed exhaust system.
Nearby service areas
Radon mitigation near Littleton
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.
