Galvanized Pipe Replacement in Toronto

Signs you need galvanized pipe replacement

Galvanized pipe fails gradually, so the warning signs creep up. Pressure fades at upstairs fixtures, the first water out of a tap after a weekend away runs brown, and threaded joints in the basement wear crusty orange collars. Eventually a pinhole opens in a wall or ceiling.

• Low flow at one or two taps while others are fine
• Discoloured water, especially from hot lines
• Rust stains or mineral crust at fittings
• Dull grey pipe with threaded joints that a magnet sticks to

What causes it in older Toronto homes

The zinc coating on galvanized steel wears away over decades, and the bare iron underneath rusts. Scale and corrosion build up inside, shrinking a ¾-inch line to a pencil-sized channel. In many pre-war semis and row houses, renovations replaced some runs with copper or PEX but left galvanized sections hidden behind plaster, so the house ends up a patchwork. Any spot where steel was joined straight to copper, with no dielectric union between them, rusts out faster.

Galvanized lines that once connected to a lead service can also hold lead particles in their scale, which is one more reason to get them out. Our page on signs of lead pipes covers what to look for at the meter.

What we do on site, in order

1. We trace every galvanized run from the meter to each fixture and mark what is exposed versus concealed.
2. You get a written plan: full replacement, or staged work starting with the worst sections.
3. New copper or PEX is run along the most practical route, using basement ceilings, closets and chases to limit wall openings.
4. Fixtures are reconnected, every line is pressure-tested and then flushed.
5. Openings are left clean and ready for your plasterer or drywaller.

What affects the price

Quotes are prepared before any work starts. Cost is shaped by the number of fixtures, how many floors the pipe climbs, whether plaster walls must be opened, and whether you choose copper or PEX. Finished basements and tiled bathrooms make access harder. For whole-house work see our repiping service.

When to call right away

A burst or actively leaking galvanized joint needs prompt attention: close the main shut-off and call. If you are not sure where that valve is, our guide on finding your main water shut-off walks you through it.

Staged work for tighter budgets

Not every household can replace everything at once. A common approach is to start at the meter, replace the main trunk line through the basement, then tackle risers to the bathrooms and kitchen as walls open during later renovations. We note which sections remain so nothing gets forgotten.

The job, in four moves

1. 1
   Trace the run

   Pipe followed from the meter, material identified at each change.

2. 2
   Isolate the section

   Nearest valve closed, line drained at the lowest tap.

3. 3
   Cut and replace

   Copper or PEX run in, transitions made with proper fittings.

4. 4
   Gauge it

   Pressure gauge on a hose bib, joints watched before walls close.

Common questions