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Neighbourhood

Plumbing in Downtown Oshawa

The streets around Simcoe and King hold some of the oldest plumbing in the city. Brick homes, upper-floor flats and converted houses each bring their own puzzles.

  • Housing: pre-war brick, two-storey
  • Supply pipe: galvanized steel, some lead services
  • Drain and sewer: cast iron stack, clay lateral
  • First check on site: service pipe material at the meter
Call (365) 517-7959

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  • Licensed & insured (details on request)
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  • Oshawa & Durham Region
  • Upfront diagnosis before work
Two workers talking through the open flange of a large pipe
Two workers check a big flanged pipe before it goes back together.

Local pipe profile

Typical housing
Pre-war brick, two-storey
Supply pipe
Galvanized steel, some lead services
Drain and sewer
Cast iron stack, clay lateral
First thing we check
Service pipe material at the meter

Pipe material changes street to street. Tell us the year the house was built when you call.

Housing stock and its pipes

Downtown Oshawa grew up around the McLaughlin carriage works and later the General Motors plants, and many of the houses near Simcoe Street, Bond Street and Centre Street date from the early to mid twentieth century. Inside, cast iron stacks turn up often, along with clay sewer laterals running to the street and galvanized steel supply lines that have been patched with copper over the decades.

Converted homes add another layer. A single house split into two or three units may share one water service and one main drain, with additions made at different times by different hands. Tracing what feeds where is often the first job.

Problems we see most here

  • Slow or backed-up main drains from roots in old clay laterals
  • Low water pressure from galvanized pipe narrowed by rust
  • Seized main valves that have not been operated in years
  • Leaks in upper-floor bathrooms dripping into the unit below

A sewer camera inspection is often the clearest way to see what an old lateral is doing. If the camera shows a broken or collapsed section, service line work or sewer repair may follow.

In a multi-unit house, find out which shut-off controls which unit before something leaks. Label them while everything is calm.

Getting to you

Downtown streets are tight, and parking near the Tribute Communities Centre on event nights is scarce. Let us know about laneway access, back entrances or permit parking when you call. Basement stairs in older homes are steep and narrow, which matters if we are bringing in a heater or a pump.

Renovating an older downtown home

Opening walls in a century house almost always turns up something unexpected. Knob-and-tube wiring gets the headlines, but old plumbing hides surprises too: abandoned gas lines, drum traps under bathroom floors, vent pipes cut off in the attic, and drains that slope the wrong way after the house has settled. When you plan a renovation, budget time for a plumber to look before the drywall goes up. A short inspection can head off a leak that would otherwise ruin a new ceiling.

Many owners also replace the water service from the curb to the meter during bigger renovations, since old lines often restrict pressure for modern fixtures.

Owners of older flats above storefronts face their own version of this, with plumbing that runs through commercial space below. Coordinate with the business owner before work begins so water can be shut off at a sensible time.

Local notes

Basements close to Oshawa Creek can take on water in heavy spring rain, and a working sump system makes a real difference; our sump pump installation page lays out every choice. Neighbours just south and west in O'Neill have much the same mix of houses and the identical kinds of calls.

From our call log

Are old clay sewer lines common downtown?

Yes. Many older homes still drain through clay tile laterals, which roots can enter at the joints.

Can you work on a house split into apartments?

Yes. We trace each unit's supply and drain first so repairs affect only the right one.

How a visit runs

  1. 1

    Call

    Describe the fixture, the floor and how old the building is.

  2. 2

    Look

    We pull the trap, the cleanout plug or the access panel before any price is given.

  3. 3

    Explain

    You hear what failed and what we would replace, in plain words.

  4. 4

    Fix

    Water off, old part out, new part in, joints supported.

  5. 5

    Test

    Full flow or full pressure, every joint checked dry.

Water on the floor right now?

Turn the main shut-off clockwise and ring (365) 517-7959.

Call (365) 517-7959
Call (365) 517-7959