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Lansdowne Borough leak detection, 24/7

Leak Detection in Lansdowne, PA

Nearly half of Lansdowne’s homes were built before 1940, from big Victorians near the station to the twins and rows around them. In this borough the owner is responsible for the sewer lateral all the way to the borough main, even the part under the street. We connect you with a local technician who finds the leak and proves where it is.

Hidden leaks in plaster walls of pre-1940 Victorians and twins
Sewer lateral locates, including the section under the street
Unit by unit testing in houses converted to apartments

Call (833) 768-3032

How it works

Calls answered day and night. Emergency? Shut off your main valve first, then call.

Quick answer

Who is responsible for the sewer pipe under the street in Lansdowne?

In Lansdowne, the property owner or occupant is. A 2014 borough ordinance makes owners responsible for maintaining, repairing and replacing the sewer lateral from inside the house to the borough main, including the curb trap or vent and the section under the public street. Shared laterals are a joint responsibility.

19050Lansdowne ZIP code, 1.18 square miles

47.6%of Lansdowne homes built in 1939 or earlier (ACS 2019 to 2023)

1943median year built for Lansdowne homes

2014year the borough put lateral repair under the street on owners

Lansdowne’s sewer lateral rule: your pipe runs all the way to the main

Lansdowne makes the owner or occupant responsible for the whole sewer lateral, from inside the house to the borough sewer main, including the curb trap or vent and the pipe under the public street. If several houses share one lateral, all of them are jointly responsible. That makes locating a lateral leak precisely worth real money.

The rule is section 269-1.1 of the borough code, added on November 5, 2014 by Ordinance 1288. The borough code text spells out three pieces that are the owner’s: the lateral line itself, the curb trap and/or vent, and the lateral under the street.

That last piece is the expensive one. Opening a public street means traffic control, permits and restoration, so you want the dig in exactly one place.

Shared laterals in twins and rows

Some twin and row houses share a single lateral. Lansdowne’s code says owners on a shared lateral are jointly and severally responsible for it. In plain terms: if the shared pipe fails, the borough can look to any of the owners on it, so neighbors need facts before they split a bill.

Camera inspection

A camera run from a cleanout shows cracks, roots, offset joints and sags, and records the distance to each defect.

Sonde locate

A transmitter on the camera head is traced from the surface so each defect gets a mark on the lawn, sidewalk or street.

Dye and flood testing

Water and dye show whether a fixture, a floor drain or the lateral is the leak, before anyone digs.

Written findings

Distance, depth and location in writing help neighbors on a shared lateral agree on what failed and where.

Booking sewer lateral and drain leak detection gets all four done in one visit. Our technician does not replace your plumber; the point is that your plumber digs once, in the right spot.

Why the borough cares

Every building on a street with a public sewer has to connect to it, and rainwater is not allowed in, under section 269-1 of the sewer chapter. Lansdowne’s 2022 stormwater ordinance also includes a prohibition section covering illicit connections and roof drains and sump pumps. A cracked lateral or a sump pump tied into the sanitary line sends clean water to the treatment plant.

Why Lansdowne homes leak: age first

Lansdowne homes leak mainly because they are old. Census survey data put 47.6 percent of the borough’s homes in the 1939 or earlier category, with a median year built of 1943. Galvanized supply lines, lead service lines, cast iron drains and clay laterals are all common in housing of that age.

A Point2Homes summary of 2019 to 2023 Census survey data lists 2,405 Lansdowne homes built in 1939 or earlier, out of about 5,050. The 2000 Census told the same story: 48.3 percent built before 1940, per the Penn State Data Center profile.

Era	Lansdowne homes	Share	Pipe you often find
1939 or earlier	2,405	47.6%	Galvanized or lead supply, cast iron stacks, clay laterals
1940s	439	8.7%	Galvanized giving way to copper
1950s	856	17.0%	Copper supply, cast iron drains
1960s and 1970s	793	15.7%	Copper, early plastic drains in some remodels
1980 and later	555	11.0%	Copper and PEX, plastic drains

Counts from the Point2Homes ACS table. The pipe column reflects typical plumbing of each era; your technician confirms what is in your house.

East Lansdowne, the separate borough next door, is older still. The 2000 Census profile put 68.5 percent of its homes before 1940. We cover both.

Old pipe fails in predictable spots: threaded galvanized joints near the meter, the point where the service line comes through a stone or brick foundation, cast iron drain joints under the basement floor and clay lateral joints that roots have found.

Victorians, twins and converted apartments

Lansdowne has an unusual mix: large Victorians from its resort era, many later split into apartments, alongside twins, rows and apartment buildings. In 2000 the borough was 29.7 percent detached homes, 29.1 percent attached and 13.6 percent three or four unit buildings. Each type hides leaks differently.

According to Wikipedia, Lansdowne was once a vacation spot for Philadelphians, and many of its Victorian houses were later converted into apartments, a practice zoning no longer allows. The borough has two National Register historic districts, the Henry Albertson Subdivision and Lansdowne Park.

The housing numbers bear it out. The 2000 Census counted 29.7 percent single detached, 29.1 percent single attached, 8.1 percent two unit and 13.6 percent three or four unit buildings.

Large Victorians

Long supply runs through multiple floors, plaster on lath, and later bathrooms added on upper floors. A leak on the third floor can show up two floors down.

Houses split into units

Plumbing was added unit by unit over decades. Lines cross ceilings and walls between apartments, so the wet ceiling is often below someone else’s kitchen.

Twins and rows

Shared party walls and sometimes shared laterals. Water moves along the wall and can surface on the neighbor’s side first.

Apartment buildings

Stacked units and risers. Isolation testing floor by floor narrows the source fast.

For buildings with more than one unit, multifamily leak detection tests each unit’s fixtures and lines in order. In single homes, hidden wall and ceiling leak detection uses moisture meters and thermal cameras to find water behind old plaster without opening it up. Historic district owners in particular want the smallest possible opening.

Signs of a hidden leak in a Lansdowne house

Look for a jump in your Aqua bill, a meter that moves with all water off, stains or bubbling on plaster ceilings, a damp front foundation wall, slow drains or sewer smell after rain, and soft ground between the house and the curb.

Bill and meter

Aqua bill far above the same month last year
Low-flow indicator moving with taps off
Toilet tank refilling on its own

Inside the house

Brown rings or bubbling on plaster ceilings
Damp baseboards on a party wall
Rusty water from galvanized lines

Sewer side

Gurgling or slow drains after a storm
Sewer smell in the basement
Water near the curb trap or vent

Yard and outdoors

Wet ground over the service line route
Sinking spots in the front walk
Hose bib dripping inside the wall

The EPA WaterSense program says roughly 10 percent of homes have leaks wasting 90 gallons or more a day, and that a dripping faucet at one drip per second wastes more than 3,000 gallons a year. Small leaks add up.

Leak detection services for Lansdowne

Lansdowne homeowners mostly need service line locates, hidden leak detection in plaster walls and ceilings, sewer lateral camera and sonde work, and unit by unit testing in converted houses. Every visit ends with the leak marked and written up.

Water service line leak detection. In older homes the service line comes through the foundation wall. Ground microphones and tracer gas pinpoint the leak between the curb stop and the wall.

Shower, tub and toilet leak detection. In older homes, bathrooms were often added or rebuilt over original framing. Flood and dye tests show whether the pan, the drain, the valve or the toilet seal is the culprit.

Basement slab leak detection. Cast iron drains and supply lines under basement floors fail with age; pressure testing and acoustic work find the spot through the concrete.

High water bill investigation and 24/7 emergency response are there when the bill or the ceiling will not wait.

How a Lansdowne leak detection visit works

You call, we connect you with a local technician, and the technician confirms the leak, isolates it, pinpoints it and marks it. You get a written report. For laterals, the report shows the distance and location of each defect, including any under the street.

1

Call

Call (833) 768-3032 any hour and tell us what you are seeing.

2

Confirm

Meter, pressure and fixture checks prove whether there is a leak and on which system.

3

Pinpoint

Acoustic listening, tracer gas, thermal imaging, or camera and sonde for drains.

4

Report

Location, depth where measurable, readings and photos in writing.

For water lines: which side of Aqua’s curb stop the leak is on.
For laterals: distance from the cleanout to each defect and whether it lies under the street.
For multi-unit houses: which unit’s fixture or line is the source.

The repair contractor must notify PA811 at least three business days before digging. Work in the street raises the stakes, so get the location first.

Call (833) 768-3032

Aqua water service in Lansdowne: ownership and high bills

Aqua Pennsylvania serves Lansdowne and owns the line from the main up to and including the curb stop. The homeowner owns the line from the curb stop into the house. Aqua does not offer leak adjustments in Pennsylvania, so leak water is water you pay for.

Aqua’s PUC tariff lists Lansdowne and East Lansdowne among the Delaware County boroughs in its Rate Zone 1 Main Division. Its rules put the point of delivery at the curb stop and require customers to repair leaks in their own line promptly.

Pipe	Owner in Lansdowne
Water main	Aqua Pennsylvania
Water service line, main to and including curb stop	Aqua Pennsylvania
Water service line, curb stop to house	Homeowner
Sewer lateral, house to borough main, including under the street	Owner or occupant (borough code 269-1.1)
Borough sewer main	Lansdowne Borough

On bills, Aqua’s leak adjustment page says it does not offer leak adjustments in PA. Our high water bill guide shows how that compares with other Pennsylvania utilities.

Lead service lines

With so many pre-1940 homes, lead service lines are a real possibility. Aqua’s customer lead service line program replaces lead or galvanized customer-owned lines at no direct cost, with a warranty, then returns ownership to you. Aqua’s July 2026 update counted about 330 Delaware County replacements since 2024. Pennsylvania’s Act 120 of 2018 is what lets PUC-regulated utilities do this work on customer lines.

More on ownership rules statewide: who owns the water service line in Pennsylvania.

What a leak costs a Lansdowne household

Leak detection usually runs about $150 to $600 nationally, quoted on the phone for your job. The leak itself costs more: at Aqua’s Rate Zone 1 price of $19.233 per 1,000 gallons above 2,000, a tenth of a gallon per minute adds about $83 a month, and a broken service line can add over $1,200.

Rate Zone 1 water rates since February 22, 2025, per a summary of the Aqua rate sheet: $22.40 a month for a 5/8 inch meter, $16.246 per 1,000 gallons for the first 2,000 and $19.233 per 1,000 after. The PUC gave $90.86 as the bill for a 3,870 gallon month.

Leak	Extra gallons a month	Added water charge
Faucet dripping once a second	about 250 (3,000+ a year per EPA)	about $5
0.1 gal/min running toilet	4,320	about $83
0.25 gal/min	10,800	about $208
1.5 gal/min service line break	64,800	about $1,246

Gallons per minute times 43,200 minutes in 30 days, divided by 1,000, times $19.233. Drip row: 3,000 gallons a year divided by 12. Water charges only. Confirm rates on your bill.

This Old House puts detection alone at about $150 to $600 and slab leak repair at about $2,300 on average. See our Pennsylvania cost guide.

Lansdowne neighborhoods, landmarks and local notes

Lansdowne is a 1.18 square mile borough in ZIP 19050, with about 11,100 residents. Lansdowne Avenue is one of its two main roads, the Lansdowne Theatre and the SEPTA Media/Wawa Line station anchor the center, and Darby Creek forms the southern and southwestern border.

Place	Note for leak work
Lansdowne Avenue and the town center	One of the borough’s two main roads, which meet near the center of town
Lansdowne Station (Media/Wawa Line)	Regional Rail stop near the center
Lansdowne Theatre	National Register landmark; marquee relit in 2012
Henry Albertson Subdivision and Lansdowne Park historic districts	Older homes where small repair openings matter most
Darby Creek border	The creek forms the borough’s southern and southwestern edge
East Lansdowne	Separate neighboring borough, also served by Aqua

Area, ZIP and landmarks are from the Lansdowne Wikipedia entry. Census Reporter counts 11,122 residents and 5,048 housing units, with a median owner-occupied value of $210,500. QuickFacts shows 67.2 percent owner occupied, up from 64.0 percent in the 2010 Census.

Darby Creek

Darby Creek runs 26 miles and is among the most flood-prone streams in the country, the Inquirer reported in 2012, noting fallen trees in Lansdowne’s Hoffman Park and debris downstream toward Colwyn. Hard floods hit Darby downstream after Tropical Storm Isaias in August 2020 and again in December 2023.

Floodwater saturates soil and can push sediment into cracked laterals. After a high water event, a camera check of the lateral is a smart step, especially since the pipe under the street is yours.

Main breaks nearby

Just over the line in Upper Darby, a 12 inch main broke at Lansdowne Avenue and State Road on June 6, 2019, closing the intersection through the morning commute, CBS Philadelphia reported. See our Upper Darby and Drexel Hill pages, or the full Delaware and Chester County area.

Winter in an old Lansdowne house

Old houses freeze in old places: supply lines in uninsulated exterior walls, third floor bathrooms over unheated eaves, back porches enclosed decades ago, and the spot where the service line enters a stone foundation. Pennsylvania frost reaches 24 to 42 inches.

Penn State’s soil freeze depth guide puts Pennsylvania frost depth at about 24 to 42 inches. Shallow lines and foundations with gaps let cold reach the pipe first.

Find and label the main shutoff, often at the front basement wall.
Insulate pipes in enclosed porches and along exterior walls.
In multi-unit houses, make sure vacant units keep their heat on.
After a freeze, read the meter with water off; some cracks only leak once thawed.

If a pipe splits, shut the main and call for frozen and burst pipe leak detection. More tips: preventing frozen pipes in Pennsylvania.

Gas safety in Lansdowne

If you smell gas, leave the building and call from outside. PECO serves most of Delaware County; its emergency line is 800-841-4141 and its gas-only line is 844-841-4151. 911 works too.

Smell gas? Out first, then call.

Do not touch switches or appliances. From outside, call PECO at 800-841-4141 or 844-841-4151, or 911, per the Inquirer gas leak guide. Stay out until it is cleared.

Utility gas heated 61.9 percent of Lansdowne homes in the 2000 Census. Once PECO has made things safe, gas line leak detection locates customer-side leaks for repair.

Before you call: three quick checks

Read the meter with water off, dye test the toilets and pour a bucket of water down a basement floor drain to see if it backs up or gurgles. Any of those tells the technician where to start.

Read the meter, wait 30 minutes with no water use, and read again.
Put food coloring in each toilet tank; color in the bowl within 10 minutes means a leak.
Run water in the basement and listen for gurgling or slow draining at the floor drain.

Then call (833) 768-3032. Learn how we work on the Pennsylvania Leak Detection homepage.

Leak Detection Services in Lansdowne, PA

Every leak detection service below is available in Lansdowne, 24 hours a day. Each link explains the testing method, what goes in the written report and the repair options; the sections above cover what is different about Lansdowne. See the full services list for a side by side overview.

Slab Leak Detection

Leaks under basement floors and slab additions, pinpointed through the concrete.

Water Service Line Leak Detection

The line from the curb stop or main to your house, traced and pinpointed.

Hidden Wall and Ceiling Leak Detection

Leaks behind plaster, drywall and finished basements, found without demolition.

Frozen and Burst Pipe Leak Detection

Every freeze crack found after a cold snap, including the ones not dripping yet.

Pool and Hot Tub Leak Detection

Lines, skimmers, returns, lights and shells tested so every leak point is found.

Gas Line Leak Detection

Customer-side gas leaks and failed pressure tests located for repair.

Sewer Lateral and Drain Leak Detection

Camera, sonde, smoke and flood testing for cracked laterals and drains.

Shower Pan, Tub and Toilet Leak Detection

Flood and dye testing so the right fixture gets fixed.

Irrigation and Outdoor Line Leak Detection

Zone by zone testing of sprinklers, yard hydrants and outdoor lines.

High Water Bill Leak Investigation

Meter, pressure and fixture testing plus a report for your utility.

Commercial and Multifamily Leak Detection

Risers, shared lines and tenant units traced to the source.

24/7 Emergency Leak Detection

Water through a ceiling or a meter spinning hard, answered any hour.

Call (833) 768-3032

Other Areas We Cover Near Lansdowne

Upper Darby

Leak detection in Upper Darby, PA

Drexel Hill

Leak detection in Drexel Hill, PA

Darby

Leak detection in Darby, PA

Springfield

Leak detection in Springfield, PA

Chester

Leak detection in Chester, PA

See every town we cover in the Delaware and Chester County Area, or browse all Pennsylvania service areas.

Guides worth reading before you book

Frequently Asked Questions

Who owns the sewer lateral under the street in Lansdowne?

The property owner or occupant. Borough code section 269-1.1, added in 2014, makes owners responsible for the lateral from inside the house to the borough main, including the curb trap or vent and the part under the street.

What if my lateral is shared with my neighbor?

All owners on a shared lateral are jointly and severally responsible for its maintenance, repair and replacement under the borough code. A camera and sonde locate shows exactly where it failed.

Who supplies water in Lansdowne?

Aqua Pennsylvania. Its tariff lists Lansdowne and East Lansdowne in Rate Zone 1, and its customer number is 877-987-2782.

Does Aqua give a leak adjustment in Lansdowne?

No. Aqua states it does not offer leak adjustments in Pennsylvania, so the best protection is finding the leak quickly.

How old are Lansdowne homes?

Old. About 47.6 percent were built in 1939 or earlier, and the median year built is 1943, based on 2019 to 2023 Census survey data.

Could my Lansdowne home have a lead service line?

It is possible in a pre-1940 home. Aqua’s customer program replaces lead or galvanized customer-owned lines at no direct cost with a warranty. Check Aqua’s service line material map.

Water is coming through my ceiling from the apartment above. What now?

Shut off water to the unit above if you can, then call. Unit by unit testing finds which fixture or line is leaking.

Can you find leaks in plaster walls without tearing them open?

Usually. Moisture meters, thermal imaging and fixture isolation narrow the leak to a small area before any opening is made.

What ZIP code is Lansdowne?

Lansdowne is 19050. We also cover neighboring East Lansdowne, Upper Darby and Drexel Hill.

Who do I call for a gas leak in Lansdowne?

Leave first. Then call PECO at 800-841-4141 or 844-841-4151, or 911, from outside.

Is sump pump water allowed in the Lansdowne sewer?

The borough code bars rainwater from the sanitary sewer, and the 2022 stormwater ordinance has a prohibitions section covering roof drains and sump pumps. Check with the borough before connecting anything.

Hearing Water You Cannot See? Call Now.

A rising water bill, a wet basement wall or a soggy strip of lawn will not fix itself. Call any hour and we will help you find the leak, prove it and keep the repair as small as possible.

Call (833) 768-3032

Answered 24 hours a day, 7 days a week.

Sources

Pennsylvania Leak Detection is a leak detection referral service. Calls connect you with an independent local leak detection professional. Figures and utility policies were checked in October 2026 and can change; confirm with your utility.