Most properties, except in the extensive estate areas, have public water and sewer facilities. Water service is provided by the Philadelphia Suburban Water Company with annual residential rates generally ranging between $175 and $200.
Sanitary sewer service is provided by the Radnor-Haverford-Marple Sewer Authority (RHM), which is part of the regional system of the Delaware County Regional Water Quality Control Authority (DELCORA).
The RHM Authority disposes of the sewage collected from its constituent townships in the Eastern Service Area of DELCORA for treatment at the Philadelphia Southwest Treatment Plant. Annual residential sewer rates in 2004 averaged $358 (assessed by the township at a rate of $3.19 per 1,000 gallons of water used in calendar year 2003).