Poly-B pipe replacement cost in Victoria BC depends on the size of the home, how many fixtures it has, the pipe material you choose and how hard the walls and ceilings are to open. We have not found a reliable published Victoria price range, so this post explains what sets the price and how to compare quotes. A repipe typically takes several days.
What is poly-B pipe and why do people replace it?
Poly-B is grey polybutylene plastic water supply pipe. It was commonly used in Canadian homes from the mid-1970s through the 1990s, according to an insurance guide from MyChoice, so many Greater Victoria houses from that period have it. Plumbers report that the pipes and their fittings can develop hairline fractures and springing leaks, and that the problem worsens with prolonged exposure to hot water or high chlorine levels in the municipal supply. Because the failure is inside walls and ceilings, a leak is often found only after damage is done.
How do I know if my house has poly-B?
Look at the exposed supply pipes near the water heater, the main shutoff and under sinks. Poly-B is typically grey plastic pipe, with crimped metal or plastic fittings, and usually has "PB" marking printed on it. Not every grey pipe is poly-B, and a house can have a mix of materials after past renovations, so a plumber's visual check is the dependable answer. A home built before the mid-1970s or after the 1990s is less likely to have it, but renovations muddy the picture.
How much does a poly-B replacement cost?
We will not quote a number we cannot source. The price is driven by:
- House size and number of fixtures. More bathrooms, kitchens and hose bibs mean more runs of pipe.
- Access. Pipes in an open basement ceiling are far cheaper to replace than those behind finished drywall, tile or a second storey.
- Replacement material. PEX and copper are the two options plumbers commonly offer. PEX is faster to install; copper costs more in materials and labour.
- Drywall and finish repair. Whether the quote includes patching, and who paints, changes the total a lot. Ask.
- Permits and inspection. Check what your municipality requires for a repipe.
- Staged or full replacement. Some homeowners replace the worst runs first, then the rest.
For the most useful comparison, get written quotes that say what is included: the number of fixtures, material, drywall repair, permit, and any warranty on labour.
How long does a repipe take?
A plumbing contractor serving the Vancouver area says a poly-B replacement can take several days on average, depending on the size of the home and the complexity of the plumbing. The water is off for part of each day, so plan around that. Finish work like drywall patching and painting is often a separate step.
What are the warning signs that poly-B is leaking?
Poly-B often fails without much warning, but these are worth acting on:
- A water stain or soft spot on a ceiling, or bubbling paint, near a bathroom or the water heater.
- Damp drywall or a musty smell in a wall with a pipe run.
- Pressure that drops or water that sprays or drips at a fitting.
- A water bill that rises with no change in use. Our guide to finding a hidden leak behind a high water bill explains the meter test.
If you see any of these, shut off the main valve and call a plumber. Do not wait for the next billing cycle.
What do insurers do about poly-B?
There is no single rule. Westland Insurance (September 2023) describes four things an insurer may do when it finds poly-B: add a premium surcharge, give a deadline to replace it, refuse to offer water damage coverage, or refuse any property coverage. MyChoice (updated September 2026) adds that the outcome varies by insurer, province, home, loss history and changing insurer guidelines, and that being covered for water damage and being covered for the cost of replacing the pipes are not the same thing.
What this means for you:
- Tell your insurer or broker if your home has poly-B, and read how your policy treats water damage from plumbing failure.
- Ask what the insurer will do if you replace it, and what documentation they want. Keep the invoice and any permit record.
- If you are buying a home, ask for a plumbing inspection and check with your insurer before you remove subjects. Do not assume the policy will renew on the same terms.
Insurer positions vary and change, so confirm with your own insurer rather than relying on a general article.
What does the repipe process look like?
- Assessment. The plumber counts fixtures, checks which pipes are poly-B, finds the main shutoff and looks at how the pipes run through the house.
- Written quote and permit check. The quote should say what is included, including drywall repair, and whether a permit is needed in your municipality.
- Access. Small openings are cut in walls and ceilings to reach the runs. A plumber who plans the openings well keeps the repair work down.
- Install. New lines are run to each fixture and connected to the main and the water heater. The old poly-B is removed or abandoned in place, depending on the house.
- Test. The system is pressurised and checked for leaks before the walls are closed.
- Restoration. Drywall is patched. Painting and finish work may be separate, so confirm who does it.
Ask the plumber to tell you where the water will be off and for how long each day, so you can plan showers, laundry and cooking.
Should you replace poly-B before you sell or buy?
If you are selling, a replaced system removes a concern that buyers, inspectors and insurers raise, and you can pass the invoice and any permit record to the buyer. If you are buying, a poly-B house can still be a good purchase, but price the repipe into your offer and ask your insurer what it will require before subjects come off. In both cases, a plumber's written assessment of the condition of the system is more useful than a general statement that the pipe is poly-B.
Repair or full replacement?
Replacing a leaking section does not fix the rest of the system. If the house is poly-B throughout, a full repipe is the lasting answer, and doing it while the walls are already open for a renovation is cheaper than doing it separately. For older metal pipes see galvanized and cast iron pipes in older Victoria homes. If you see a stain, damp drywall or an unexplained water bill, read how to find a hidden leak behind a high water bill.
What to do if a pipe fails now
Shut off the main valve, call a plumber and photograph the damage for your insurer. Our emergency repairs page explains how we respond, and the steps are covered in our guide to what to do in the first 10 minutes of a plumbing emergency. For a repipe assessment on your home, see our renovations and bathrooms service or contact us.
Frequently asked questions
How much does poly-B replacement cost in Victoria?
We could not find a reliable published Victoria range, so we do not quote one. The cost depends on house size, number of fixtures, access to the pipes, the replacement material and drywall repair. Ask for written itemized quotes.
How long does it take to replace poly-B?
A Vancouver-area plumbing contractor says it takes several days on average, depending on the size of the home and the complexity of the plumbing.
Will my insurance cover poly-B replacement?
It varies by insurer. Westland Insurance lists a surcharge, a replacement deadline, no water damage coverage or no property coverage as possible responses, and MyChoice notes that water damage cover and pipe replacement cover are not the same. Check your own policy.
Do I have to replace poly-B?
There is no general legal requirement we found, but insurers may impose conditions and the pipe can leak without warning. Talk to your insurer and get a plumber to assess it.
What do you replace it with?
PEX and copper are the common options. The right choice depends on budget, the house and what the plumber recommends after seeing it.
Sources
Last verified October 8, 2026. Rebates, codes and prices change; confirm with the program or Technical Safety BC before you rely on them.