Renovation
Pool Resurfacing & Replastering in Los Angeles
A pool surface is a wear part with a life of fifteen to twenty years. When acid washing stops working, the honest answer is a new surface — not another wash.
The short answer. Resurfacing — replastering, refinishing, the same job under three names — takes the old interior finish off the shell and puts a new one on. It is not a clean and it is not a patch. It is what you do when the surface itself has run out.
The test is physical, not cosmetic. A pool is plastered with a reserve: at least half an inch of material to work with. Every acid wash spends part of that reserve permanently, and so does every year of aggressive water. While reserve is left, a wash is the cheap answer and we will say so. Once it is gone — aggregate showing, surface porous, stains straight back — another wash removes plaster you no longer have and buys a few months. That is where the honest answer changes. What an acid wash does, and how often it is safe.
How to tell your finish is at the end
None of this needs a technician. Walk the shallow end barefoot, look at the floor in flat morning light, and read your own chemistry history.
- Rough underfoot
Plaster goes on smooth. Sandpaper means the binder has etched away and you are walking on exposed aggregate. The next stage takes skin off toes.
- Stains that no longer come out
If a stain survives brushing, a shock and a wash, it is inside the plaster rather than on it.
- Grey, gritty patches
Marble dust and sand showing through across broad areas. This is the reserve running out, visibly.
- Chemistry that never holds
Climbing acid demand and calcium hardness rising on its own. An eroding surface feeds calcium into the water every week, and your service report shows it before your eyes do.
- Hollow spots
Tap the floor with a pole. A dead sound means the plaster has debonded from the shell and will eventually pop off.
- A spider web of fine cracks
Crazing. On its own it is age rather than damage, but it opens the surface to staining and rarely arrives alone.
One of these is a watch item. Three together is a finish that is finished, and money spent treating the symptoms from here is money spent twice.
Plaster repair or full resurfacing? Not the same job
Search for pool plaster repair and you are shown patch kits — a tub of white powder for the price of a takeaway. The product is real and it works. Its usefulness is narrower than the results suggest.
When a patch is right
- One defect on a sound surface
A chip where a ladder anchor came out, a pop-off the size of a hand, a spall under a return — while the rest of the pool is smooth, even and holding chemistry.
- The finish still has years in it
A patch on a five-year-old surface has a decade to justify itself. On a seventeen-year-old surface it has months.
- The defect is doing damage
An open chip is where algae roots and water gets behind the plaster. Even on a finish due for replacement, patching holds the line until the job is booked.
When a patch is money thrown away
- The surface is uniformly worn
Fresh plaster against fifteen-year-old plaster is a different colour on day one and stays one. You buy a bright island in a grey field — a repair that draws the eye to the problem.
- It is the third or fourth spot
When failures keep appearing in new places, the failure is the finish, not the location. Each patch is a part-payment on a job you will do anyway.
- The crack is structural
See below — a patch over a moving crack is a delay measured in months.
Surface crazing and a structural crack look nothing alike once you know. Crazing is a shallow web of hairlines running every direction; it lives in the plaster and comes with age. A structural crack runs in one direction, holds a line across the floor or up a wall, is often wider at one end, and you can catch a fingernail in it. That is the shell, not the finish, and resurfacing over a live one telegraphs through the new plaster within a season. The shell is dealt with first — and where the ground itself is moving, which on hillside and Foothill lots is a real possibility, that means an engineer's opinion before anyone quotes a finish. A contractor who quotes a replaster over a structural crack without mentioning the crack is quoting you the same job twice.
Choosing the finish: plaster, colour, quartz or pebble
Four families, all cement-based, all applied the same way. What separates them is what is mixed into the cement.
| Finish | Expected life | Underfoot | Stains & chemistry | Relative cost |
|---|---|---|---|---|
| White plaster Cement and marble dust |
Shortest of the four | Smooth when new, roughens as it etches | Least forgiving — the softest surface here, and nothing in the colour hides a stain, a mottle or a patch | Lowest; the baseline the others are priced against |
| Coloured plaster Same material, pigmented |
About the same as white | Identical to white | Deeper water colour, but streaking shows worse on dark plaster. The least tolerant finish of a poor start-up | Slightly above white |
| Quartz Plaster with crushed quartz |
Longer than plain plaster | Smooth with a fine grip — light texture, not rough | Denser and harder, so it resists etching and holds colour better. A good middle answer for bare feet | Mid-range |
| Pebble Small stones in a cement matrix |
Longest — commonly quoted at fifteen to twenty-five years against ten to twelve for standard plaster | Textured, and standard pebble is genuinely rough. Mini-pebble and polished versions exist for that reason | Hides mottling best of the four and least likely ever to look blotchy | Highest |
Those lifespans are the ranges the industry publishes, and they are wide because they describe materials rather than pools. The most expensive finish is also not automatically the right one: a household with small children who sit on the step for an hour a day will notice a standard pebble floor, and keep noticing it for twenty years.
So the useful question is not which is best. It is what the pool is used for, who swims in it, and what specifically annoyed you about the finish you are replacing. If tile, coping, decking or water features are also in mind, that is a remodel rather than a resurface — and far cheaper done together than a year apart.
Pebble is more forgiving of stains, not of chemistry. The cement holding those stones is still plaster. Water aggressive enough to eat plaster eats the matrix and leaves the stones standing proud — a pebble finish that has gone sharp underfoot got there exactly the way an etched plaster finish did.
How the work runs
The shape is the same on every pool. What changes is what the chip-out reveals.
Inspect before anything is quoted
What surface is on there now, whether the shell is sound, whether the cracks are cosmetic or structural, the state of tile, coping, main drain and light niche — and whether the ground allows the pool to be emptied at all.
Drain
Dechlorinated, to a sanitary sewer clean-out; in Los Angeles it does not go into the street or a storm drain. An empty shell can lift against groundwater, so ground conditions and the forecast decide the day.
Chip out the old finish
The loud, dusty part. Failed material comes off; sound bonded plaster may be prepared and left as a base, depending on how many coats the shell already carries. This is the biggest variable in the job, and it is not fully known until it starts.
Repair the shell, then prepare it
Cracks, hollow areas, the light niche, the main drain, any plumbing easier to reach now than ever again. Then the surface is bond-coated so the new finish has something to hold.
Tile and waterline, if in scope
The pool is empty and the crew is on site. Tile costs a fraction of what it costs later as its own job.
Apply the new finish
Mixed, pumped in and applied across the whole interior in one continuous pass. A shell is plastered in a single day — it cannot be paused and finished tomorrow.
Trowel, or expose
Plaster and quartz are troweled to a finish. Pebble is washed back to expose the stones inside a window of about an hour: late enough that the cement holds them, early enough that it still releases.
Fill without stopping
A fill that pauses halfway leaves a permanent ring at the line it stopped at.
And then day one of twenty-eight begins. The plastering crew's part ends when the pool is full; the finish is not finished. New plaster stays chemically active for a month — shedding calcium, driving pH upward — and whether it ends up smooth and even or streaked, spotted and rough is settled inside those four weeks, not on the day it was troweled.
Daily brushing with a nylon brush through the first seven days, calcium hardness at 200–400 ppm, pH at 7.2–7.6, alkalinity at 80–120, a bristled vacuum head rather than a wheeled one, no salt until day 28 and nobody in the water for the first 14.
We run that programme ourselves — on our own finishes and on finishes laid by other crews. It is the stage at which new surfaces are most often quietly lost, because the pool looks perfect on day three and the discipline slips on day nine. Exactly what the 28-day start-up involves.
How long a new finish should last
Fifteen to twenty years is the figure the industry generally quotes for a plaster finish. Treat it as a reference point, not a promise: published estimates run from ten years to twenty-five depending on who is writing and what they are selling, and that spread is mostly not about the material. It is about the water.
Which is the argument for weekly service we would rather make than any other: not that the pool looks nicer, but that the most expensive component of a pool is its interior surface, and routine chemistry is what buys the extra five years.
What shortens it
- A start-up that was never properly run
The damage is done in month one and carried for the life of the finish.
- pH allowed to sit low
Aggressive water dissolves calcium out of the surface continuously. Invisible week to week, and the largest single cause of a finish ending early.
- Acid washes used as routine maintenance
Every wash spends reserve you do not get back. An annual acid wash is how a twenty-year finish becomes a ten-year one.
- Long stretches green
Algae roots into the pores, and each recovery leaves the surface a little more open than before.
Who is allowed to do this work in California
Interior finish work on a pool is licensed contractor work, not handyman work: it touches the structure of the shell, the plumbing and often the electrical.
Pool Care LA is the trade name of Luxury Estates Builders, Inc., holding California contractor licence #1117110 in classifications B (General Building) and C-53 (Swimming Pool). C-53 is the one that matters here: it covers the pool structure, its interior finish, tile, coping and the plumbing and equipment attached to it. The licence runs to 29 February 2028 and carries a $25,000 contractor's bond with Jet Insurance.
None of that has to be taken on trust. Put the number into the licence check at cslb.ca.gov and it will show the classifications, the status and the bond. Do it for every quote you collect, not only ours — this is one of the jobs where the unlicensed price looks best right up to the moment something goes wrong.
What it costs, and why there is no number here
We publish our prices — weekly service, green-pool recovery, acid wash, the 28-day start-up, repair labour are all on the cost page with the figure and the range.
Resurfacing is not on that list, and we are not going to invent a number for it. The quote follows the interior surface area of your particular shell, the finish you choose, what the chip-out reveals underneath and what else is in scope. The only honest way to price it is to look at the pool, and we do that before anyone talks money.
What moves the number
- Interior surface area, not footprint
A deep end is a great deal of wall. Two pools with the same outline can differ substantially.
- How much has to come off
A finish delaminating across half the floor is a different chip-out from one worn but firmly bonded — and the finish you choose sits on top of that.
- What the shell needs first
Structural cracks, hollow areas, a leaking light niche, a main drain to bring to current code.
- Tile, coping, steps, benches, ledges, spa
Every extra edge and radius is hand work — and this is the cheapest moment to do the tile.
- Access
Hillside lots, long carries and a long pump run to the nearest sewer clean-out all add hours.
Weekly maintenance customers take 20% off individual services, and weekly service has no minimum contract.
Questions people ask about resurfacing
How much does pool resurfacing cost?
We quote it after seeing the pool and we do not publish a figure, because the price follows the interior surface area of your shell, the finish you choose and what the chip-out reveals underneath — not a rate multiplied by a footprint. What moves it: surface area rather than footprint, the finish, how much old material comes off, what the shell needs repaired first, whether tile and coping are in scope, and access. Everything else we do has a published price on our cost page.
How long does pool resurfacing last?
Fifteen to twenty years is the usual industry reference for a plaster finish, and published estimates run wider — ten to twelve years for standard white plaster, fifteen to twenty-five for pebble. Treat it as a reference point, not a guarantee: the difference between the ends of that range is mostly water chemistry rather than material.
Can pool plaster be repaired instead of replaced?
Yes, and sometimes it is the right call: a localised chip, spall or pop-off on a surface that is otherwise smooth and holding chemistry is a patch, especially while the finish is young enough for the patch to justify itself. What a patch cannot do is rescue a worn finish — fresh plaster against fifteen-year-old plaster is a different colour on day one and stays one. And if you are patching the third or fourth spot, the failure is the finish, not the location.
Can you plaster over old plaster in a pool?
Sometimes — it is a real decision rather than a shortcut. Where the existing coat is still firmly bonded it can be prepared, bond-coated and plastered over. Where it is delaminating, hollow-sounding or already carrying several previous coats, it has to come out first: new plaster laid over a layer that is letting go will let go with it. Each added coat also narrows the tile line.
Can I resurface or replaster my pool myself?
Patching a single chip with a repair kit is genuinely a homeowner job. Resurfacing is not, and not mainly because of skill. A whole shell has to be plastered in one continuous pass, troweled or exposed inside a window of about an hour, and filled without stopping the moment it is ready. There is no version of this that happens over a weekend. It also means draining the pool, and it is licensed contractor work in California.
What time of year should you replaster a pool in Los Angeles?
Los Angeles gives you more of the year than most of the country, because nothing freezes here. The two real constraints are rain and heat. Nobody should drain a pool with sustained rain in the forecast — groundwater pressure against an empty shell is the one risk in this job that turns a finish problem into a structural one, and that matters most on hillside and Foothill lots. Extreme heat sets plaster faster than it should while it is being troweled.
What happens if you never replaster the pool?
It stops being cosmetic and becomes a running cost, then a structural one. A porous, etched surface holds algae and stains, so chemical use climbs every year. As the finish thins and delaminates, water starts reaching the shell and the rebar behind it — and at that point you are looking at structural repair plus a resurfacing quote rather than a resurfacing quote. There is a window in which replacing the finish is the cheapest thing on the table, and it closes.
Send a photo before you commit to anything
A clear picture of the floor in flat light, plus what your calcium hardness has been doing, is usually enough for us to say whether you are looking at a resurfacing job, an acid wash that still has room to work, a stain treatment, or a patch. Two of those four are much cheaper conversations, and we would rather have them first.
If it is a resurface, we come out, look at the shell, talk through the four finishes and quote it properly — then run the 28-day start-up and put the pool on a weekly route once it has cured. We cover 35 communities from Studio City; here is the list.