Pool resurfacing cost calculator

Pool resurfacing costs $6,000 to $15,000, with a national average of $11,000for a 1,000-square-foot pool, on HomeGuide’s published figures. This calculator narrows that band to your own pool’s surface and finish, with every figure sourced.

This page is general information, not professional advice. It cannot see your pool, its cracks or its shape, and the only number that counts is a written quote from a pool contractor who has drained and inspected it.

Figures last read from their sources on August 21, 2026.

Where every price on this page comes from

HomeGuide supplies the per-square-foot finish table, the lifespans, the drain-and-clean line and the two refill bands. HomeAdvisor and Angi supply the second readings: a by-size table both of them publish for eight footprints, HomeAdvisor’s per-1,000-square-foot rates, and Angi’s own per-square-foot bands for a concrete pool. Each was read first-hand on the date stamped above, and each is linked next to the figure it produced.

They do not agree exactly, and that is printed rather than smoothed over. On standard plaster HomeGuide reads $6 to $8 per square foot, Angi $5 to $6, and HomeAdvisor $5,500 per 1,000 square feet. Averaging those into one number would invent a figure nobody published, so the tool shows the readings side by side instead.

Why there is no gallons box

Because nobody prices resurfacing by the gallon. HomeGuide and Angi price per square foot of interior; HomeAdvisorprices per 1,000 square feet. A plasterer covers the floor and the walls, and two pools holding the same water can have different wall areas. A gallons control would have to assume a depth to back out a surface, and an assumed depth is a made-up number wearing a control’s clothing. So the tool takes the dimensions a contractor would measure, works out the surface from plain geometry, and prints the gallons beside it — so a reader who knows their pool as “about 15,000 gallons” can check the dimensions describe it.

What the geometry leaves out, on purpose

The tool treats the floor as flat and the pool as a rectangle. A real floor slopes from the shallow end to the deep end and is slightly longer than its footprint; real pools have coves where the wall meets the floor, steps, benches and curves. All of that adds surface the tool does not count, which means it under-counts rather than inventing a fudge factor. Your contractor’s measured square footage should come in a little above the number here, and a quote whose square footage is far below it deserves a question.

Repairs come before the finish

HomeGuide is blunt about the order: cracks and leaks get fixed before resurfacing, because untreated cracks spread and damage the new finish. HomeAdvisor prices surface repairs at $200 to $1,200 or more depending on the extent, and HomeGuide prices labor at $45 to $110 per hour. None of that is in the estimate above, because none of it is knowable before someone drains the pool and looks. HomeGuide puts the job itself at 5 to 7 days and says some finishes cure for 7 to 10 days before the water goes back.

The deeper pages behind this tool: pool resurfacing cost by finish and pool type, what it costs to replaster a pool, how long each finish lasts and which finish fits which pool.

Questions people ask about this

How much does it cost to replaster a 15,000 gallon pool?

Replastering is priced by the square foot of interior, not by the gallon — HomeGuide publishes $6 to $8 per square foot for standard plaster and no guide publishes a per-gallon rate. Enter your pool's length, width and depths above; the tool prints the gallons next to the surface area so you can confirm the dimensions describe a 15,000-gallon pool, then prices the surface.

Why can't I just type in the gallons?

Because two pools holding the same water can have different wall areas, and the plaster goes on the walls. A gallons box would have to invent a depth to back out a surface, and an invented depth is an invented price. Dimensions are what a contractor measures, so dimensions are what this tool takes.

What does the calculator not include?

Repairs, which come first and depend on what an inspection finds — HomeAdvisor prices surface repairs at $200 to $1,200 or more. It also treats the floor as flat and the pool as a rectangle, so coves, steps and a sloped floor add surface the tool does not count. Labor is inside HomeGuide's per-square-foot bands, which it prices at $45 to $110 per hour.

How long will the pool be out of use?

HomeGuide puts the job at 5 to 7 days and says some finishes need 7 to 10 days to cure before refilling; a garden-hose refill takes 12 to 36 hours on its figures and a water truck under an hour. HomeAdvisor says most local pros finish in about five days.

Does this calculator give me a quote?

No. It gives you the published ranges for your pool's surface and finish and shows what each line does to them. Only a pool contractor who has drained and inspected your pool can quote the job, and you should get three of those in writing for the same finish.