Look for an existing rough-in
A capped pipe running from the slab up through the building is a passive radon system. Finding it before getting quotes can substantially change the price.
York County, Pennsylvania
Radon guidance for Manchester Township, north of the city of York.
Call (717) 555-0143Manchester Township sits north of York and has seen considerable residential development alongside its older housing stock. As with the rest of the county, the practical reality is that radon levels vary house by house rather than neighbourhood by neighbourhood, because the result depends on the ground directly beneath each foundation.
For homeowners in newer developments, it is worth finding out whether the builder installed passive radon-resistant construction. Builders in parts of Pennsylvania have used it for years, and homeowners frequently do not know it is there — a capped white pipe running from the basement slab up through the house and out the roof is the tell. If you have one, you have most of a mitigation system already.

A capped pipe running from the slab up through the building is a passive radon system. Finding it before getting quotes can substantially change the price.
Modern building practice does not remove radon risk, and in tighter houses the pressure differential drawing soil gas in can be more pronounced.
A contractor who spots an existing passive stack should price accordingly. Check them against the DEP certified list first so you are comparing quotes from firms you have already vetted.
Activating a builder's rough-in feels like a solved problem. It is not solved until a post-mitigation test says the level came down.
Independent guidance on radon testing, mitigation costs and DEP-certified contractors for homeowners in Manchester Township and the surrounding parts of York County.
Ask about a test result, what a Manchester Township mitigation quote should include, or how to check a contractor’s DEP certification.