Basement Waterproofing in Penn Hills, PA
Penn Hills, PA spreads over steep ground cut by five stream valleys, and a lot of its basements are reaching their late sixties. If one of them is letting water in, explain what is happening, and this free referral service sends the note to one independent local contractor, who comes out and writes an estimate.
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Fixing Basement Water in Penn Hills, PA
With 41,059 residents in the 2020 Census, Penn Hills is the largest community this site covers, about 9 miles east of Downtown Pittsburgh. Roughly 75% of homes are owner-occupied and the median value is $134,700. The township formed in 1851 took the Penn Hills name in 1958 and adopted home rule in 1976.
Behind this page is a referral service, not a builder. It won't bid, quote or sign for any job, holds no Pennsylvania home improvement contractor registration, and passes each request to just one independent contractor. Contractors may advertise here, without charge during a trial, and homeowners are never billed or offered anything.
Mid-Century Homes Across Penn Hills, PA
According to Census survey data, the typical home here dates to about 1958, and roughly a third of all homes went up during the 1950s. That stock is spread across communities including Rosedale, Universal, Lincoln Park, Crescent Hills, Eastmont, Churchill Valley and Blackridge.
A basement of that age has sat through decades of freeze-thaw winters. Seals around pipe openings wear out, block joints loosen, and a pit dug long ago may still hold a tired pump.
- A pump that cycles in dry weather. Constant running can mean groundwater is high or the check valve has quit.
- Dampness that returns every spring. A wall that darkens with each thaw is taking on water from the soil.
- Stair-step cracks along block joints. Worth having looked at, especially if one keeps widening.

Services in Penn Hills, PA
- Sump pumps. Replacing a worn unit, adding a battery backup or an alarm, and sending discharge outdoors well away from the walls.
- Interior drains. A channel along the footing that collects seepage and carries it to the pit.
- Hillside drainage. Gutters, longer downspouts and regrading so runoff from the slope above passes the house.
- Wall cracks. Injection for poured concrete and repair for block joints that have opened.
- Leak repair. One damp corner or pipe opening fixed without treating the whole basement.
The sump pump installation and full basement waterproofing pages go further.
Plum Creek, Five Streams and Flash Floods
Allegheny County sums up Penn Hills as "Hilly; floodplains on five streams." The Allegheny River runs along the northern edge, and Plum Creek, Sandy Creek, Thompson Run, Shades Run and Duffs Run cut through or along the municipality.
On July 11, 2019, flooding was reported in Penn Hills during the storm that swamped Route 28 (CBS). Ten days later, Plum Creek "rushed out of its banks," damaging 126 homes and businesses in Penn Hills and three neighboring communities. In June 2025, Penn Hills was among the areas named when Allegheny County declared a disaster emergency after flooding.
A creek over its banks is a different problem from the everyday seepage that waterproofing addresses.

Penn Hills, PA Sewers and Permits
Penn Hills handles more of its own sewage than most towns. Its Water Pollution Control Department operates the municipality's own treatment plants and pump stations plus the main sewer lines, roughly 250 miles of pipe, and ALCOSAN treats wastewater for the area too. For sewer questions, including water rising through a floor drain, contact Water Pollution Control at 412-798-2171.
Building permits go through Code Enforcement, 412-342-1192, at the Municipal Building, 102 Duff Road (main line 412-342-1086). The contractor confirms which permits your job needs. Planning to sell? Ask Code Enforcement what a sale requires before you list.
Penn Hills, PA Costs, Measured Nationally
No cost survey covers Penn Hills by itself, so the rows below are national.
| Cost row | Figure | Source (year) |
|---|---|---|
| Typical basement waterproofing project | about $3,000 to $10,000 (average about $5,000) | Fixr national (2026) |
| Interior perimeter drain, per linear foot | $40 to $120 | Fixr national (2026) |
| Sump pump installation | $600 to $2,500 | Fixr national (2026) |
| Epoxy crack injection, per crack | $250 to $1,000 | Fixr national (2026) |
| Waterproof paint or sealant, per sq ft | $1 to $8 | Fixr national (2026) |
Ask for a smaller fix, such as a new pump plus outside drainage, to be priced next to a full perimeter drain so you can compare. The cost calculator gives a rough starting range.
Local Help, One Request
- Who files for the permit. Make sure the contractor, not you, handles any filing with Code Enforcement.
- References close to home. Ask for a local address and nearby jobs you can ask about.
- Room to think. You can generally cancel a home improvement contract within 3 business days of signing, so same-day pressure deserves a polite no.
- East-side coverage. Requests from Rosedale out to Blackridge reach a contractor who works this side of the county.
Check Coverage, Then Check the Water
Find out if a contractor serves your address, then run the wet basement checker to learn whether your symptoms suggest groundwater or the sewer.
Questions About Penn Hills, PA Basements
Does Penn Hills require a dye test when I sell?
Ask Code Enforcement what a sale requires, at 412-342-1192, before you put the house on the market. Whatever the answer, any test result and any certificate come from the municipality, never from a contractor. If a downspout or sump turns out to feed the sanitary line, moving it is a separate small job.
Who handles sewage that backs up into my basement?
Start with Water Pollution Control at 412-798-2171, since the municipality runs its own sewer lines. Homeowners policies commonly exclude sewer backups unless a separate endorsement was bought; your insurer or agent can say what yours covers. A backwater valve is plumbing work for a licensed master plumber.
Can I connect a sump pump to a drain myself?
Allegheny County lets an owner who lives in a single-family home pull a plumbing permit and do all the labor personally, and the work is still inspected. Otherwise a licensed master plumber does it. The County plumbing office is at 412-578-8123; ask Code Enforcement where a sump may discharge.
Will waterproofing protect my house if Plum Creek floods again?
No basement system holds back a creek that has left its banks. Waterproofing deals with groundwater pressing through walls and floors after rain or snowmelt, which is the far more common problem. Questions about creek flooding near your street belong with the municipality.
Next Door to Penn Hills, PA
Across the Allegheny to the northwest, Shaler Township, PA has its own guide, and south of the City there is one for Baldwin Borough, PA.
Next Step for Penn Hills, PA Homeowners
Write down where the water shows and how soon after rain it starts, then send the request form. One independent contractor who works in Penn Hills will contact you to set up a visit, and the choice to hire is always yours.