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Bathroom with a tub, toilet and shower fixtures
The tub and shower valve wall.

Home service

Aisle 6 · Fixtures

Shower valve repair in North York

Behind the shower handle sits the valve that blends the two supplies and keeps you from getting scalded. When it fails, the shower turns unpredictable or never fully shuts off.

  • We start at the fixture, valve or rough-in wall
  • On the van: differential test gauge and torch
  • You see the broken part before you hear a number
  • Every fixture on the run tested before we leave
Call nowTalk to a plumber(365) 990-1521
  • Licensed and insured (details on the call)
  • Price agreed before work starts
  • North York and next door

What goes wrong

  • Shower head keeps dripping after the handle is off
  • Temperature swings when a toilet flushes
  • Handle turns but the water barely gets warm
  • Stiff handle that is hard to turn
  • Water running behind the wall, showing up as a ceiling stain below

Rebuilding the cartridge

Most modern single-handle valves use a replaceable cartridge. The plumber shuts the water, removes the handle and trim, pulls the retaining clip and draws the cartridge out. Mineral buildup from Toronto's hard water often makes it stubborn; a puller tool gets it out without damaging the valve body. A new cartridge from the same maker goes in, and the anti-scald limit stop is reset.

Older two- and three-handle shower valves in North York bungalows have stems and seats like an old faucet. We rebuild those with new washers and seats, or recommend a modern pressure-balancing valve if parts are gone.

Most modern single-handle valves use a replaceable cartridge. The plumber shuts the water, removes the handle and trim, pulls the retaining clip and draws the cartridge out.

From the counter

Replacing the valve

When the body is corroded or the brand is obsolete, the whole valve gets replaced. That means opening the wall. If there is a closet or bedroom behind the shower, we open from that side and leave the tile alone, then fit an access panel. If not, a larger trim plate can cover a small tile cut-out.

Scald guard: Ontario code requires temperature-limiting shower valves in new installs. We set the limit so the hottest setting is safe.

Shower drains while we are there

A slow shower drain is often hair caught under the strainer. We clear it on the same visit and check that the trap holds water so no sewer smell comes up.

Questions

Do I need to remove tile to replace a valve?

Not always. An access panel from behind, or a large retrofit trim plate, usually avoids it.

Why does a flush elsewhere turn my shower cold?

Either the valve is not pressure-balancing, or its balancing spool is stuck. Rebuilding or replacing the valve fixes it.

How the job runs

  1. You callDescribe what is dripping, backing up or cold, and the cross streets.
  2. We ask questionsAge of the building, pipe type if you know it, where the shut-off is.
  3. We open it upTrap off, clean-out open or wall cut: find the actual fault before quoting the fix.
  4. We test itOpen each tap on that run, watch the joints dry and show you what came out.