5 services · Pittsburgh
Leaks, pipes & freezing in Pittsburgh, PA
Pipe problems range from a burst line that needs the water shut off right now to slow pinhole leaks that show up as a high water bill. A licensed plumber finds where the water is escaping, repairs or replaces that section, and tells you whether the rest of the piping is likely to follow.
- Licensed local plumbers
- The problem explained before work starts
- Price agreed before the job begins

Leaks, pipes & freezing services in Pittsburgh
Burst pipe repair
UrgentTurn off the main water shutoff first, then open a faucet on the lowest floor to drain the lines. A plumber cuts out the split section, replaces it, and checks the rest of that pipe run, because one freeze rarely damages only one spot.
Frozen pipe thawing in Pittsburgh
UrgentIf a faucet gives no water or only a trickle after a hard freeze, a pipe is frozen. Leave that faucet open, warm the area gently, and call a plumber if you can't find the frozen section or if it's inside a wall, because a split pipe will leak as soon as it thaws.
Leak detection
Turn off every fixture and watch the water meter's leak indicator. If it moves, water is leaking somewhere. A plumber uses pressure tests, acoustic listening and thermal imaging to find the leak so only a small section of wall or floor has to be opened.
Repiping
Repiping replaces a home's water supply lines, usually because old galvanized steel has corroded or polybutylene is at risk of failing. Most repipes today use PEX, take two to five days, and are done through small wall openings rather than gutting the house.
Water line repair
UrgentThe water service line runs from the curb stop near the street to your house, buried below the frost line. A leak shows up as a soggy patch in the yard, low pressure throughout the house, or a meter that never stops. Repair means finding the leak, then fixing that spot or replacing the line.
Local conditions
Leaks, pipes & freezing in Pittsburgh: what's different
Many century-old Pittsburgh homes have long, aging water service lines running up steep yards. Many have had lead service lines, which the utility has been replacing.
Freeze-thaw cycles on shaded north-facing slopes split exterior pipes and outdoor faucets.
Leak detection on long hillside service lines is more involved, and repairs often need digging on steep yards. Insulating exterior-wall pipes and outdoor faucets prevents most freeze damage.
Pittsburgh Water has also been replacing lead service lines in older neighborhoods, which is worth checking during any repair.
- Water and sewer in Pittsburgh
- Pittsburgh Water (formerly the Pittsburgh Water and Sewer Authority) provides water and sewer service to most of the city.
- Permits in Pittsburgh
- In Allegheny County, plumbing permits and inspections are handled by the Allegheny County Health Department's plumbing program.
Pittsburgh housing and plumbing
Hillside homes from the early 1900s typically have basements, cast-iron drains, clay laterals and some galvanized supply.
Other Pittsburgh conditions that affect plumbing
- Hillside sewer laterals: Steep lots and old clay laterals lead to cracked, root-filled lines.
- Freeze and thaw: Repeated winter freeze-thaw cycles split exterior-wall pipes and outdoor faucets.
- Lead service lines: Many older homes have had or still have lead service lines, which the utility has been replacing.
- Three rivers and steep valleys: Pittsburgh's rivers and steep valleys mean many homes sit on slopes, and runoff during heavy rain can overwhelm older combined sewers.
Neighborhoods and ZIP codes
Plumbers on Thawline cover Pittsburgh and Allegheny County, including Squirrel Hill, Lawrenceville, Shadyside, Bloomfield, Brookline, Mount Washington. ZIP codes: 15201 · 15202 · 15203 · 15204 · 15205 · 15206.
When to call a plumber in Pittsburgh
- Water spraying, dripping from a ceiling or pooling on the floor: shut off the main and call right away
- No water from some faucets on a very cold morning
- A water bill that jumped without a change in use
- The water meter moving when every fixture is off
- Warm spots on a slab floor, or the sound of running water in a wall
- Low pressure throughout the house or rusty water from older pipes
How these problems start and how to choose between repair options is covered in the leaks, pipes & freezing guide.
Leaks, pipes & freezing questions in Pittsburgh
Is my Pittsburgh water service line lead?
Should I turn off the water if a pipe bursts?
More plumbing in Pittsburgh
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