Pool Liner Replacement
Vinyl-liner pools have a replaceable waterproof membrane rather than a bonded finish. Liners are consumables — they last roughly eight to twelve years and then get changed, which makes this the most predictable project in pool ownership.
How a liner pool works
A vinyl-liner pool is a structural frame — steel, polymer or concrete wall panels — with a vermiculite or grout floor, and a vinyl membrane holding the water. The liner does no structural work at all; it is purely the waterproofing layer, held at the top by a track around the pool edge.
That makes replacement genuinely routine. Unlike resurfacing a concrete pool, nothing is chipped out and nothing cures. The old liner comes out, the shell underneath gets inspected and repaired, and a new liner goes in.
Signs the liner needs replacing
- Persistent water loss. Beyond normal evaporation. Small liner tears can be patched; a liner leaking in several places is finished.
- Wrinkling that will not pull out. Usually a sign the vinyl has stretched or groundwater has got behind it. Wrinkles are also abrasion points.
- Fading and brittleness. Sun and chemicals break vinyl down over time. A liner that has gone stiff and pale will tear rather than stretch.
- The liner slipping out of its track. Vinyl shrinks as it ages. Once it will not stay seated in the bead track, its useful life is over.
- Stains and heavy scaling. Cosmetic, but often coincides with a liner well into its second decade.
- It is simply old. Eight to twelve years is the typical range. Past that, budget for it.
What it costs
Liner replacement is priced primarily by pool size and liner thickness, with pattern choice a smaller factor. Most of the variability in real quotes comes from what is found underneath.
| Pool size | Liner and installation | Notes |
|---|---|---|
| Small (10 × 20 ft) | $2,400–$4,200 | Standard 20 mil liner |
| Average (16 × 32 ft) | $3,800–$6,500 | The most common residential size |
| Large (20 × 40 ft) | $5,200–$9,000 | Thicker liners commonly specified |
| Upgrade to 27–30 mil | +15–25% | Worth it in high-use pools |
| Wall panel repair | $400–$2,000 | Found once the old liner is out |
| Floor resurfacing | $600–$2,500 | Vermiculite or grout base repair |
How the job runs
Faster and less disruptive than resurfacing a concrete pool — typically a week or two end to end, most of which is waiting for a manufactured liner.
- Measurement. The pool is measured precisely, because liners are manufactured to fit. This is the step where errors are expensive.
- Manufacture. One to three weeks depending on supplier and season. This is most of the timeline.
- Drain and removal. One day. The old liner comes out and goes to disposal.
- Inspection and repair. Half a day to two days. Wall panels, the floor base and the bead track are checked and made good. Surprises live here.
- Installation. One day. The liner is set, vacuumed into place against the walls, and the fittings are cut in.
- Fill and balance. One to two days. Filling starts immediately to seat the liner properly.
Choosing a liner
- Thickness. 20 mil is standard; 27–30 mil costs 15–25% more and is worth it for heavy use, pets, or anywhere the liner takes abrasion.
- Pattern and colour. Largely aesthetic, but darker patterns hide staining better and gain slightly more solar heat. Lighter ones show debris less.
- Bead type. Must match your existing track, or the track has to be changed too. Your installer confirms this at measurement.
- UV and algae resistance. Most quality liners include both. Worth confirming rather than assuming on a budget liner.
- Warranty. Typically 20–25 years but heavily prorated, so the practical value is in the first few years. Read what is actually covered.
What this project needs measured
Measurements are only requested when they change the price of the work you selected. Everything below is collected inside the estimator — you can enter dimensions you already know or measure as you go.
Required
Pool interior surface area
Resurfacing and finish work are priced by the square footage of the interior shell.
Only if it applies
Pool perimeter (linear feet)
Tile and coping are priced by the linear foot around the pool edge.
Work homeowners commonly add to this project
Combining these while the pool is already drained and staged is usually cheaper than returning for them later. You can add or remove any of them inside the estimator.
- Wall panel repair
- Floor resurfacing
- Coping replacement
- Step replacement
How to read a PoolSavr estimate
- Step 1
Instant estimate
Based on your project selections and general pricing assumptions. Useful for deciding whether a project is realistic.
- Step 2
Measured estimate
Uses your pool, spa, or deck dimensions to price the work against the areas actually being resurfaced, tiled, or replaced.
- Step 3
Contractor proposal
Prepared by a licensed professional after inspecting the site. This is the only number that becomes a contract.
PoolSavr is an estimating and matching platform. We do not perform pool work ourselves — licensed local professionals do. Contractors pay PoolSavr for qualified project leads, which is how the estimating tools stay free for homeowners. A PoolSavr estimate is a planning range, never a guaranteed quote — read thefull estimate disclaimer.
Frequently asked questions
- How much does a pool liner replacement cost?
- For an average 16 × 32 ft pool, roughly $3,800–$6,500 including removal, installation and refilling. Small pools start around $2,400 and large ones can reach $9,000. Wall or floor repairs found once the old liner is out are additional.
- How long does a pool liner last?
- Eight to twelve years typically. Sun exposure, water chemistry and liner thickness are the main variables — a 20 mil liner in a heavily used, sun-exposed pool sits at the short end of that range.
- How long does the replacement take?
- The physical work is two to four days. The overall timeline is usually one to three weeks, dominated by manufacturing the liner to your pool’s measurements.
- Can a torn liner be patched?
- Yes. Small tears and punctures patch well, including underwater, and a patch on an otherwise healthy liner can last years. Patching stops making sense when the vinyl has gone brittle, because new tears will keep appearing.
- Can I convert a liner pool to plaster?
- Only if the structure supports it, and it is a major conversion rather than a refinish. Vinyl-liner pools have wall panels and a vermiculite floor that are not designed as a plaster substrate. It is possible with concrete walls, but expect a substantial project — get a structural assessment first.
Ready to see what your project costs?
Start with the work you are considering. You will get a preliminary range before anyone asks for your phone number, and you decide whether to request a contractor review at the end.