Pennsylvania · 26 covered places · 32 ZIP codes
Plumbers in Delaware County, PA
We cover 26 cities and towns in Delaware County, Pennsylvania, across 32 ZIP codes, including Upper Darby, Media, Chester. About 453,000 people live in those ZIP codes. 58% of the homes were built before 1960, so galvanized pipe and old cast iron drains are common.
| Year built | Share of homes |
|---|---|
| Before 1940 | 22% |
| 1940–1959 | 36% |
| 1960–1979 | 23% |
| 1980–1999 | 13% |
| 2000 or later | 7% |
Share of housing units in the covered ZIP codes. Census ACS 2023 5-year estimates.
| Place | Residents in covered ZIPs | Built before 1960 |
|---|---|---|
| Upper Darby | 41,875 | 76% |
| Media | 38,206 | 37% |
| Chester | 34,697 | 66% |
| Wayne | 33,770 | 37% |
| Drexel Hill | 32,749 | 78% |
| Lansdowne | 28,819 | 74% |
| Clifton Heights | 23,150 | 64% |
| Darby | 22,636 | 78% |
| Aston | 21,242 | 32% |
| Glen Mills | 20,654 | 10% |
What goes wrong in Delaware County homes
Pre-1960 homes: galvanized pipe and cast iron
58% of homes in Delaware County's covered ZIP codes were built before 1960, 22% of them before 1940. Houses that old often still have galvanized steel supply lines that rust closed from the inside, and cast iron or clay sewer pipe that cracks and lets roots in. Weak pressure at upstairs fixtures, brown water after a shutoff and slow drains are the usual clues. Typical fixes are whole-house repiping and a sewer camera inspection.
Oil-heated homes
14% of occupied homes here heat with fuel oil, far above the national norm. Many of them make hot water with a tankless coil inside the boiler, which runs the boiler all summer. Plumbers often replace the coil with an indirect tank or a standalone water heater when the boiler is serviced or replaced.
Long, hard winters
80% of homes here were built before 1980, when pipes were more often run through exterior walls and uninsulated crawl spaces. In a long Pennsylvania winter those are the lines that freeze and split. See frozen and burst pipe repair.
Natural gas in most homes
59% of occupied homes here heat with utility gas, so gas water heaters, ranges and dryers are common. That means gas line extensions for new appliances, flexible connector replacements and venting checks when a water heater is swapped. If you smell gas, leave first and call the gas utility from outside. See gas line repair.
Common plumbing work in Delaware County
Other covered towns in Delaware County
- Aston (1 ZIP)
- Brookhaven (1 ZIP)
- Broomall (1 ZIP)
- Chester (2 ZIPs)
- Chester Heights (1 ZIP)
- Clifton Heights (1 ZIP)
- Crum Lynne (1 ZIP)
- Darby (1 ZIP)
- Drexel Hill (1 ZIP)
- Folcroft (1 ZIP)
- Folsom (1 ZIP)
- Glen Mills (1 ZIP)
- Glenolden (1 ZIP)
- Lansdowne (1 ZIP)
- Marcus Hook (1 ZIP)
- Media (3 ZIPs)
- Morton (1 ZIP)
- Norwood (1 ZIP)
- Prospect Park (1 ZIP)
- Ridley Park (1 ZIP)
- Sharon Hill (1 ZIP)
- Swarthmore (1 ZIP)
- Upper Darby (1 ZIP)
- Wallingford (1 ZIP)
- Wayne (4 ZIPs)
- Woodlyn (1 ZIP)
Delaware County plumbing FAQ
Which towns in Delaware County do you cover?
26 places: Aston, Brookhaven, Broomall, Chester, Chester Heights, Clifton Heights, Crum Lynne, Darby, Drexel Hill, Folcroft, Folsom, Glen Mills, Glenolden, Lansdowne, Marcus Hook, Media, Morton, Norwood, Prospect Park, Ridley Park, Sharon Hill, Swarthmore, Upper Darby, Wallingford, Wayne, Woodlyn. Enter your ZIP code to confirm coverage for your street.
How old are homes in Delaware County?
Across the covered ZIP codes, Census estimates put 58% of homes as built before 1960, 23% from 1960 to 1979, 13% from 1980 to 1999 and 7% in 2000 or later.
Who licenses plumbers in Delaware County, PA?
Pennsylvania has no statewide plumbing license; Philadelphia, Allegheny County and other municipalities license plumbers, and home improvement contractors register with the Attorney General.
Housing and heating figures are US Census Bureau ACS 2023 5-year estimates for the ZIP code areas we cover in Delaware County, combined across places and weighted by housing units. Some ZIP codes extend into neighboring counties.
Need a plumber in Delaware County?
Same-day service when a plumber is available. One call connects you with a licensed plumber who serves your ZIP.