Pool Resurfacing and Replastering in Walnut Creek

• SymptomRough, sandpaper feel on feet and swimsuits
  Likely causeEtching: the surface has been dissolved by low pH or aggressive water over years
  Usual fixResurface; acid washing only buys time on thin plaster
• SymptomHollow-sounding patches or flaking sheets
  Likely causeDelamination: the top coat has lost its bond to the layer below
  Usual fixChip out the loose areas and resurface
• SymptomBlotchy gray or dark mottling
  Likely causeUneven cure or water chemistry when the plaster was new
  Usual fixCosmetic; resurface when combined with roughness
• SymptomRust-colored spots
  Likely causeCorroding rebar or metal near the surface
  Usual fixSpot repair first, then resurface; ask about structure
• SymptomHairline crazing (fine map-like cracks)
  Likely causeSurface shrinkage cracks, usually cosmetic
  Usual fixMonitor; resurface if it grows or leaks
• SymptomCalcium nodules or white crusty bumps
  Likely causeWater moving through a crack and leaving deposits
  Usual fixFind the crack; may need repair before resurfacing

Compare them in more depth, including sun exposure and color choice, in plaster vs pebble.

1. Permit and drainThe pool is pumped to the sanitary sewer cleanout under a Central San discharge permit, with 48 hours' notice (Central San). Storm-drain discharge is not allowed in the county.
2. Prep the shellThe old finish is chipped out or ground and a bond coat applied, depending on its condition. Loose areas are removed down to sound material.
3. Tile, coping and fittingsWaterline tile, coping, lights and return fittings are repaired or replaced while the pool is empty.
4. Apply the new finishPlaster, quartz or pebble is applied and finished in a single day for most pools. Pebble is exposed by washing the surface.
5. Refill right awayThe pool starts filling the same day and should not stop until full, so the finish cures evenly underwater.
6. Start-upThe first weeks of brushing and chemistry set the finish. Ask who does start-up and what it includes.

Most of the calendar time is scheduling, permits and fill. Ask each contractor for a start-to-swim estimate in writing.

Fall through early spring is the usual window, so the pool is ready by May. Spring calendars fill early. If you resurface in summer, ask how the crew schedules around 90°F days.

• Waterline tile if tiles are loose, cracked or scaled (tile and coping).
• Coping if stones rock or the mastic joint to the deck has failed.
• Lights and light niches, especially older incandescent fixtures.
• Return fittings and skimmer faceplates that are cracked or stained.
• Equipment if the pump or filter is near the end of its life (equipment repair).

If you want more than a new finish (a new shape, spa, sun shelf or safety features) it becomes a remodel.

A real Walnut Creek–area quote can land below or above these. See the cost guide for 10,000- and 20,000-gallon examples.