Tub Liner vs Replacement Ottawa: Which Lasts Longer?

By Curtis McGrath, Project Coordinator | 18 years renovation experience | Bytown Better Bathtubs and Showers | Updated 24 September 2026

The most expensive tub is the one you pay to remove twice. Every week in Ottawa, homeowners weigh a cheap liner over their old tub against a full replacement, and the right answer depends on one thing before price: what condition the tub underneath is really in. We replace tubs across Ottawa, Kanata, Nepean, Barrhaven, and Orleans. For the wider pricing picture, our bathroom remodeling cost guide sets out every project size.

Tub Liner vs Replacement: What Each Route Actually Does

A tub liner is a sheet of acrylic, vacuum-formed to the shape of your existing bathtub, that is glued down over the old tub. The old tub stays in the floor. The best-known seller of the method in Canada is Bath Fitter, which markets a new tub and wall system fitted directly over your existing one, installed in as little as one day. Those two claims, no demolition and one day, are the entire sales pitch, and on a sound tub they are true.

A bathtub replacement is the opposite operation. The old tub is cut or lifted out, the drain and overflow are reconnected under the Ontario Building Code plumbing rules, and a new acrylic tub goes in with a new wall surround. At Bytown that takes 1 to 3 days and the old tub leaves in the truck. Nothing is buried, so nothing can rot underneath. A liner is also not reglazing, which only sprays a thin coating onto the old surface; a liner adds a whole second shell.

Read the last column first. It is the one that removes a route from the list entirely, before price gets a vote. Bytown does the replacement route only; reglazing and liners are covered here for comparison, not because we sell them.

When a Liner Is the Right Call, and Bytown Is the Wrong One

Three honest cases, because a comparison page that never loses is an advert.

Your tub is sound and the budget cannot reach $13,000 CAD. If the tub does not flex underfoot, has no cracks, no rust at the drain, and no leak history, and the surround is the only thing you hate, a liner will get you a clean-looking tub for a fraction of a replacement. Bytown cannot quote that job, and we would rather you knew that here than after a site visit.

You need it done in one day, no exceptions. A liner company can promise faster because it skips demolition. Bytown’s guarantee is 1 to 3 days. On a straightforward job we are often done in one, but the guaranteed window is the number you should hold us to.

The surface is the only problem and you want the cheapest possible fix. That is reglazing, at a few hundred dollars, and it is also not something Bytown sells. You give up lifespan for that price, since the coating wears and can peel.

The Four Liner Problems the Brochure Does Not Lead With

Bytown does not install liners and does not recommend them. Here are the four reasons, in the order they cost homeowners money.

1. Water trapped between two shells

A liner is only as good as the adhesive bond and the caulk line at the drain, overflow, and wall joints. If any of those fail, water sits between the new acrylic and the old tub with nowhere to evaporate. The first sign is a hollow, squelching feel underfoot; the second is a smell. By then the liner has to come off to reach the mould.

2. It cannot fix what is wrong with the tub

A liner is a cover, not a repair. A crack, a soft fibreglass floor, or rust around the drain all stay where they were, under a layer you can no longer inspect. A liner cannot even make a tub deeper, and the same logic applies to every other defect in the tub beneath it.

3. It adds height and takes away depth

Two shells are thicker than one. The step over the rim gets taller, which matters if the bathroom is being renovated for a parent, and the inside of the tub gets shallower. If you are already considering a walk-in or step-in conversion, a liner moves you in the wrong direction.

4. You pay for removal twice

When the liner eventually fails, the crew removes a liner and a tub. Bytown’s $13,000 to $15,000 CAD replacement band already includes removal and disposal of whatever is in the alcove today, so a liner installed now does not carry forward into the next job.

What a Full Bathtub Replacement Includes at Bytown

Bytown’s route is removal and full replacement, every time, priced at $13,000 to $15,000 CAD for a bathtub remodel and installed in 1 to 3 days. The table shows what the number covers, so you can compare it line by line with a liner quote instead of headline against headline.

The line that matters most is the second one. A replacement is the only time anyone looks at the floor under the tub, which in older Ottawa homes is where water damage and tired plumbing get found and fixed rather than sealed under a shell.

Four Questions to Ask Any Liner or Replacement Company

Most people reading this are already collecting quotes. These four questions work on any installer, liner or replacement, including us.

1. What happens to the old tub? The only two honest answers are it stays and we cover it, or it leaves in our truck. Then ask what happens if water gets under the new shell.

2. Will you check the tub before you quote? A soft or cracked tub disqualifies a liner. If the salesperson does not press on the tub floor, check the drain for rust, and ask about leaks, the quote is being written for the best case.

3. What is the warranty term in years, and what is excluded? Lifetime on the product is common. What you want in writing is the labour term and whether water between the liner and tub is covered or excluded.

4. How many days, guaranteed, not as little as? A best case is not a commitment. Get the window you can hold the company to.

Does This Apply Across the Ottawa Area?

Yes. Bytown’s replacement band of $13,000 to $15,000 CAD is the same price in Ottawa, Kanata, Nepean, Barrhaven, and Orleans. What changes by neighbourhood is the age of the tub: pre-1980 homes in Nepean and older Ottawa are more likely to have a steel or cast iron tub with rust at the drain, which is exactly the tub a liner should not go over.

If your property is on the Quebec side in Gatineau, a replacement there follows Quebec’s plumbing and permit rules rather than the Ontario Building Code, and contractor licensing differs, so confirm the permit situation and contractor requirements for your address before booking.

Why Ottawa Families Choose Bytown Bath

We renovate bathrooms in Ottawa and nothing else. On a tub replacement that focus matters, because the value is in what gets removed and inspected, not just what gets installed, and that is the part a liner skips.

Every quote is written and upfront, our installs are handled by professionally trained installers, and we remove and dispose of the old tub, reconnect the plumbing to code, and install a new acrylic tub and wall surround in 1 to 3 days. We back the work with a 5 year written warranty on labour and supplied materials. Payment is 50 percent on booking and 50 percent on completion.

Frequently Asked Questions

Is a bathtub liner cheaper than replacing the tub?

Up front, yes, and on a sound tub that can be the right call. A liner skips demolition and disposal, which is why it is marketed as a lower-cost option than replacement. A Bytown bathtub replacement runs $13,000 to $15,000 CAD and includes removing and disposing of the old tub, a new acrylic tub and wall surround, and a 5 year written warranty. The gap closes if the liner fails and both layers later have to come out.

How long does a tub liner last?

As long as the seal holds. A liner is glued and caulked over the old tub, so its life is set by the adhesive bond and the joints at the drain, overflow, and walls, not by the acrylic itself. If water gets between the two shells, the liner is finished regardless of the warranty on the product. Bytown does not install liners, so ask the installer for the labour warranty term in years.

Does Bytown Bath install tub liners?

No. Bytown Bath does not install liners or inserts over an existing tub and does not recommend the method. Bytown’s route is removal and full replacement: the old tub is taken out and disposed of, a new acrylic tub and wall surround are installed in 1 to 3 days, and the work carries a 5 year written warranty on labour and supplied materials.

Can you put a liner over a cracked bathtub?

You can physically, and you should not. A liner covers the crack, it does not repair it, and a cracked or soft-floored tub keeps flexing under the new shell until the adhesive and caulk let go. Once water is under the liner, it cannot be inspected or dried. A cracked tub is a replacement job, which is $13,000 to $15,000 CAD at Bytown and includes removing the damaged tub.

Is a tub liner the same as reglazing?

No. Reglazing sprays a new coating onto the surface of the existing tub and adds almost no thickness. A liner is a separate moulded acrylic shell fitted over the tub, so it adds height and reduces depth. Bytown offers neither, and both leave the original tub in the floor.

Related Guides from Bytown Bath

Helpful Outside Resources