Radon Mitigation Castle Rock
Fast, certified residential radon systems designed for Castle Rock 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 Castle Rock home starts below the foundation
Local coverage
Douglas County · ZIP codes 80104, 80108, 80109
Castle Rock combines rolling terrain, newer master-planned neighborhoods, custom homes, and older properties near the town center. Radon can accumulate in basements and lower living spaces regardless of the home’s age. Sloped sites and walkout foundations can also create several pressure zones beneath one structure.
Our system design begins with the foundation footprint and the original test result. We inspect sump pits, unfinished access areas, passive piping, crawlspaces, and the route to a safe exhaust point. This produces a focused proposal with no mystery about where components will go.
A typical Castle Rock system is installed in 3–4 hours and is backed by a lifetime warranty. We guarantee the post-mitigation level 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
Mitigation for Castle Rock basements and sloped sites
Douglas County development commonly includes full finished basements, garden levels, walkouts, large attached garages, and passive radon features. Custom homes may have multiple wings or slab transitions that affect sub-slab airflow.
We use pressure-field thinking rather than square footage alone. One properly prepared suction point may serve a large communicating slab, while separated foundations may need multiple collection points connected to a coordinated system.
What matters locally
Planning for Castle Rock foundations
Local housing patterns inform the inspection, but the final design always follows the conditions at your property.
Rolling terrain
Walkout and garden-level foundations can create multiple elevations and soil-contact conditions.
New-home growth
Builder-installed passive features should still be tested and evaluated for actual performance.
Large custom homes
System design accounts for foundation wings, additions, and finished spaces before routing begins.
Simple from start to finish
Our Castle Rock 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 Castle Rock
Get direct answers about testing, installation, pricing, guarantees, and foundation-specific system design.
How long does radon mitigation take in Castle Rock?
Most residential radon mitigation systems in Castle Rock 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 Castle Rock 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 Castle Rock?
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 Castle Rock?
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.
Are walkout basements vulnerable to radon?
Yes. A walkout wall does not eliminate the slab and below-grade walls that contact soil. Test the lowest regularly occupied level and mitigate based on the complete foundation.
Can one fan serve multiple suction points?
Yes, when the fan is properly selected and the pipe network is designed for the home. Multiple collection points often connect to a single active exhaust system.
Nearby service areas
Radon mitigation near Castle Rock
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.