Radon Mitigation in Dallastown, PA

Dallastown (17313) 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 Dallastown

Dallastown was incorporated in 1866 and had a 2020 population of 4,195; the 17313 ZIP holds about 11,500 people and 4,500 homes, with the largest cohort built before 1940.

What the numbers mean here

Dallastown has the highest first-floor average of any zip in this guide, 11.6 pCi/L, which means radon here is not just a basement problem. Homes with living space on the ground floor over a crawl space or slab should test on every level. Sub-membrane systems are common in the older core.

Who serves Dallastown

Dallastown is 10 minutes south of York; Absolute Radon Mitigation and the Lancaster-side firms both cover it routinely. 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.

Back to the York radon mitigation guide · All areas

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