Cost Breakdown
Cost to Replace Poly B Pipes: What You're Actually Paying For
A Poly B replacement quote isn't one flat number for one thing — it's made up of a few real components. Here's what's actually in the price.
We price the pipe and the drywall restoration as one fixed number — not a plumbing invoice followed by a separate drywall bill.
Get your Poly B repair quote
Want a line-item sense of what you're paying for? A referral to a licensed contractor breaks it down.
We’ll email you to connect you with a licensed plumbing contractor, who confirms your Poly B on site and gives you a firm price — pipe and walls, one number.
Firm, written price before any work begins — no surprise billing, ever.
The Components
What Actually Makes Up the Price
A Poly B replacement quote is really three things bundled into one number: the pipe material itself (typically PEX), the labour to run it and make the fittings, and the drywall restoration needed to close up every access point once the plumbing is done.
Most competitors quote only the first two and leave you to find and pay for the third separately. We fold all three into a single fixed price.
Pipe and Labour
Pipe Material and Labour
PEX material cost is a relatively small piece of the total — the bigger driver is labour: the time it takes to route new lines through the attic, walls and other access points, make each fitting properly, and pressure-test the finished system.
Labour scales with the number of fixtures and bathrooms, the number of storeys, and how accessible the existing plumbing is — a home with an open basement is generally faster to work in than one where every run is behind finished walls.
The Drywall Piece
Why Drywall Restoration Is Part of the Number
Every access point opened to reach the old Poly B needs to be patched, finished and painted before the job is genuinely done — and that's real material and labour too, not an afterthought. We include it because leaving it out just shifts the cost onto you as a second, separate bill.
Whole-home totals typically run $8,000 to $18,000, most often $10,000 to $13,000, with roughly $800 to $1,500 more per bathroom — a number that already has the drywall built in, not stacked on top later.
What's in the Number
The Three Things You're Actually Paying For
Broken into its real components.
The pipe itself — a relatively small share of the total cost.
Routing, fittings and pressure-testing — the largest driver, scaling with home size and access.
Patching, finishing and painting every opening — included in our quote, not billed separately.
Getting a Real Quote
See the Real Breakdown for Your Home
The only way to know your actual number is a referral to a licensed contractor — we'll look at fixture count, access and layout and give you a single fixed price covering all three components above.
What Isn't Usually Extra
What's Typically Not an Additional Cost
Standard permitting, pressure testing, and basic paint-matching on restored drywall are typically part of our fixed quote, not line-item extras — the goal is a genuinely complete number, not a low headline price with add-ons revealed later.
Where costs can legitimately grow is if something unexpected turns up once walls are open — but even then, we confirm any change with you before continuing, not after the invoice arrives.
If you're getting a lower quote elsewhere that seems too good given these three components, ask specifically what's excluded — a number that only reflects pipe and labour, with drywall left out, isn't actually a lower total cost once you account for finding and paying a separate contractor to close everything back up.
Common Questions
Frequently Asked Questions
What's included in the cost to replace Poly B pipes?
Pipe material (typically PEX), plumbing labour to run and fit the new lines, and drywall restoration for every access point opened — all in one fixed quote with us. That total already reflects the pipe, the labour and the drywall restoration together, which is why comparing it against a plumbing-only quote from elsewhere can be misleading unless you confirm what's actually included on both sides.
Is drywall repair extra?
Not with us — it's built into the same fixed price as the plumbing. Some competitors quote it separately or leave it to you.
What drives the labour cost the most?
Home size, number of bathrooms and storeys, and how accessible the existing plumbing is — open basements are generally faster than fully finished walls. We'll walk through each component with you during the assessment so the final number never feels like a black box.
Is PEX pipe itself expensive?
No — material cost is a relatively small share of the total. Labour and drywall restoration make up most of the price. We'd rather explain the reasoning behind every part of the number than hand you a total with no context behind it, so ask us anything during your visit.
How much does it typically total?
Most whole-home replacements run $10,000 to $13,000, with a broader range of $8,000 to $18,000 depending on your home's specifics. We'll also explain each line item so you understand exactly what you're paying for, not just a final total. We'll put every component of the number in writing so there's nothing left to interpretation once the quote is in your hands.
In Short
Cost to Replace Poly B Pipes — The Short Version
The cost to replace poly b pipes breaks down into pipe material, plumbing labour, and drywall restoration — typically totaling $8,000 to $18,000, most often $10,000 to $13,000. We quote all three as one fixed number so there's no separate drywall invoice waiting for you after the plumbing is done. If a quote you're comparing against ours looks noticeably lower, ask specifically what's excluded before assuming it's the better deal — a number missing drywall restoration, permitting or pressure-testing isn't actually a lower total cost once those pieces get added back in later. Nothing about the final number should feel like a surprise once you've seen the breakdown.
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See the Full Breakdown for Your Home
One fixed quote covering pipe, labour and drywall — no hidden components.
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