Radon Mitigation in Dover, PA

Dover (17315) has its own line in the state's radon database, and it is not a comforting one.

Source: PA DEP Radon Test Data by ZIP Code, closed-house short-term tests, 1990 to present, pulled Sept. 15, 2026.

About Dover

Dover borough (incorporated 1864) had a 2020 population of 1,954, but the 17315 ZIP covers Dover Township with about 26,000 people and 11,000 homes. The largest housing cohort was built in the 1970s.

What the numbers mean here

Dover has the lowest basement average of the towns in this guide, but 7.4 pCi/L is still nearly double the action level, and the ZIP's highest reading on file is 547.0. The 1970s split-levels and ranches common here usually have poured slabs that take a single suction point well, which keeps costs near the bottom of the York range.

Who serves Dover

Dover is northwest of York, so Harrisburg and Camp Hill firms (Enviroquest, American Radon Solutions) are as close as the York-based option; Central Penn Radon in Wellsville is closest of all. Every firm must be DEP-certified; check the York County certified list.

What it costs

Same as the rest of York County: $800 to $2,500 for a system, most near $1,000 to $1,500, plus $30 to $100 a year to run the fan. Details on the cost page.

Next steps

Test first (a free kit from lungradonkits.org is fine for a first look). If the result is 4.0 or above, get two written bids from certified firms using the vetting checklist. Retest 24 hours after the system goes on, then in the opposite season.

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Sources: PA DEP RadonZip report; Wikipedia and City-Data for town facts; York Builders Association for local pricing. Last reviewed September 15, 2026.