Hiring the Wrong Plumber for a Poly-B Repipe Can Cost You Twice
A full Poly-B replacement is a big-ticket, once-in-a-decade job — and unlike a leaky faucet, a bad repipe hides behind drywall for years before it shows itself. Here's exactly what to check before you sign anything: the licence, the insurance, and the warranty that actually protects you if something goes wrong.
Why This Hire Is Different From a Typical Repair Call
Most plumbing jobs are easy to judge after the fact — the tap either drips or it doesn't. A Poly-B repipe isn't like that. Once the drywall goes back up, the connections, the fittings, and the quality of the work are hidden for good, and you won't find out whether the job was done right until years later, when a corner-cut fitting fails behind a wall you can't easily get to. That's what makes the plumber you choose matter more here than it does for a typical service call.
Being licensed and insured isn't a box to check for its own sake — it means the person behind your walls is legally qualified to do restricted plumbing work, so you're not the one holding the bag if something fails five years from now. A real warranty means that if a fitting does let go, you're not paying to fix it twice.
Questions to Ask Before You Sign Anything
A legitimate Calgary Poly-B company will answer every one of these without hesitation. Hesitation, deflection, or "trust me" is the answer you're actually looking for.
Are you a certified journeyperson plumber?
Ask for their journeyperson or Red Seal certificate number — not just "yes, we're licensed."
Are you licensed to pull permits in Calgary?
Ask for their City of Calgary business licence number, and confirm the permit is included in your quote.
What does the warranty cover, in writing?
Ask them to spell out materials vs. labour, the length of each, and what's excluded — before you book.
None of these are rude questions, and a plumber who's done this a hundred times won't treat them that way. If anything, a company that volunteers this information before you ask is usually a good sign in itself.
Verifying Licensing, Insurance & WCB — Not Just Taking Their Word for It
Plumbing is what Alberta classifies as a compulsory certification trade: anyone performing restricted plumbing work — which a repipe falls squarely under — legally has to be a registered apprentice, a certified journeyperson, or hold a recognized Alberta trade certificate. This isn't a nice-to-have credential the way it might be for some trades; it's the legal minimum to touch your water lines.
Separately, the company itself needs to hold a City of Calgary business licence as a specialty trade contractor, and be registered as a City Qualified Trade with a journeyperson plumber on staff in order to pull the permit your repipe legally needs (see our guide on permit requirements for a Poly-B repipe for what that process looks like). A company that's vague about permits or suggests skipping one is telling you something important about how they operate.
It's also worth asking whether they carry active WCB (Workers' Compensation Board) coverage for their crew and general liability insurance. Almost every Alberta business with employees is required to register with WCB shortly after hiring their first worker, so a legitimate company should have no trouble confirming this — it protects you from being financially on the hook if someone's hurt working in your home.
What a Real Warranty Should Look Like
Warranty terms vary a lot across Calgary's Poly-B companies, and the number alone doesn't tell you much without knowing what it actually covers.
Materials vs. workmanship: a materials warranty (often the longest number a company advertises) covers defects in the pipe and fittings themselves, so you're not paying for parts that failed on their own. A workmanship warranty is shorter and covers the installation — meaning if a connection was installed poorly and leaks, the labour to fix it is covered too, not just the parts. You want both spelled out separately, in writing, not one vague number.
What's often excluded: some warranties don't cover drywall repair after a callback, meaning even a covered leak could still cost you out of pocket to patch the wall back up. Ask specifically whether that's included.
Transferability: if you sell your home before the warranty period ends, ask whether it transfers to the new owner — a transferable warranty is a real selling point at resale, and a non-transferable one is worth knowing about upfront.
A short, unwritten "we'll take care of you" isn't a warranty — a real one means if something goes wrong, you have a document that says exactly who fixes it and for how long, so you're not arguing about it after the fact.
Red Flags That Mean Keep Shopping
None of these are automatically disqualifying on their own, but more than one together is worth taking seriously.
- No business licence number or physical Calgary address: means you have limited recourse if the job goes wrong and no easy way to confirm they're actually registered to work here.
- Refuses to give a written, itemized quote: so you can't compare it against other quotes or hold them to what was actually promised.
- Quote is dramatically lower than every other company's: often means the difference is coming out of licensed labour, permits, or fitting quality — costs that tend to resurface later, on you.
- Pressure to sign same-day for a "special price": a legitimate repipe quote should hold for at least a few days, so you have time to actually compare it.
- No mention of a permit, or a suggestion to skip it: unpermitted concealed plumbing work can require a licensed contractor to resolve retroactively later, at your expense.
- Warranty only covers "materials," not labour: means the parts are replaced free, but you could still pay full price to have someone install the replacement.
The Honest Truth: Most Calgary Poly-B Companies Do This Right
It's worth being upfront here: the majority of Calgary plumbing companies doing Poly-B replacement are licensed, insured, and will answer every question above without blinking. This isn't a warning that the industry is full of scammers — it's that the stakes of concealed work make the ten minutes it takes to ask these questions genuinely worth it, the same way you'd ask questions before any other five-figure job done inside your walls.
If a company answers all of this clearly and confidently, that's usually exactly what it looks like: a company that's done it a hundred times and has nothing to hide.
Frequently Asked Questions
Do I have to hire a certified journeyperson plumber for a Poly-B repipe, or can any handyman do it?
Plumbing is what Alberta calls a compulsory certification trade — that means anyone doing restricted plumbing work, including a repipe, legally has to be a registered apprentice, a certified journeyperson, or hold a recognized trade certificate. A handyman or unlicensed "plumber" doing your repipe isn't just a quality risk, it's not legal work, and it can come back to bite you at resale or with an insurance claim.
How do I actually check if a plumber is licensed, and not just taking their word for it?
You can ask for their journeyperson certificate number and City of Calgary business licence number directly — a legitimate company will hand these over without hesitation. Alberta also publishes trade certification information through Tradesecrets, and the City of Calgary's business licence search lets you confirm a company is registered to pull permits in the city. If a company gets cagey when you ask, that's your answer.
Is a really low quote actually a good deal?
Not usually. A full Poly-B repipe involves real material and labour costs, and a quote that's dramatically lower than everyone else's is often a sign corners are being cut somewhere — unlicensed labour, no permit pulled, cheaper fittings, or a warranty that doesn't actually cover much. It's worth asking directly what's different about their price before you sign anything.
What should a workmanship warranty actually cover?
A solid workmanship warranty covers labour if a fitting or connection fails, not just the material itself — some companies split these into a materials warranty (often the longest number you'll see quoted) and a shorter workmanship warranty. Ask specifically what's excluded, whether drywall repair from a warranty callback is included, and whether the warranty transfers to a new owner if you sell the home. A vague one-year warranty with no written terms is worth pushing back on.
Do I need to pull a permit, or will the plumber handle that?
A reputable Calgary Poly-B repipe company should pull the permit as part of the job and handle scheduling the rough-in and final inspections — ask them directly whether that's included in their quote. If a plumber suggests skipping the permit to save money, treat that as a serious red flag, not a discount.
Should I get more than one quote before deciding?
Yes — two or three quotes gives you a real sense of the going rate for a home like yours and makes it much easier to spot a lowball or an outlier. It also gives you a chance to compare how each company answers the licensing, insurance, and warranty questions above, which tells you as much about them as the number on the page.
Want a Quote From a Team That'll Answer Every One of These Questions?
We'll walk you through our licensing, insurance, and warranty terms up front, with no pressure to decide on the spot. If you'd rather see numbers first, take a look at what replacement typically costs for a home like yours.
Book a Free On-Site Quote