Water-damaged hardwood and fine finishes

Many Del Mar homes have materials that do not take water well: site-finished hardwood, engineered planks, custom cabinetry, plaster walls. Quick, careful drying gives the best chance of saving them.

Hardwood

• Cupping: edges higher than centers, caused by moisture from below. It can flatten as the floor dries.
• Crowning: centers higher than edges, often from sanding a cupped floor too early.
• Buckling: boards lifting off the subfloor. Usually means replacement in that area.

Specialty floor-drying systems can pull moisture through the boards. Refinishing waits until readings are stable.

Engineered and laminate

Engineered floors vary; some can be dried, others delaminate. Laminate with a fiberboard core usually swells and is replaced.

Plaster

Plaster tolerates water better than drywall and often dries in place, but it dries slowly. Older homes may also need testing before demolition.

Cabinets and millwork

Solid wood and plywood can sometimes be dried; particleboard and MDF typically swell. Removing toe kicks helps dry under cabinets.

Art and heirlooms

For valuable art, books or furniture, the American Institute for Conservation has a directory to find a conservator.

What helps

1. Remove standing water quickly.
2. Get rugs off wood floors.
3. Avoid heat guns or extreme heat that can crack wood.
4. Let readings, not appearance, decide when to refinish.

Decisions by material

Timing refinishing

Wood floors can cup while wet and flatten as they dry. Sanding too soon can leave a crowned floor later. Flooring professionals generally wait until moisture readings in the wood and subfloor are stable before sanding and refinishing.

Matching finishes

When part of a floor or wall is replaced, matching color, sheen and texture across rooms is a common concern. Ask early how the contractor and your insurer will handle matching so expectations are clear.

First aid for wet hardwood

1. Remove standing water immediately with towels or a wet vacuum if safe.
2. Take rugs off the floor; their backing can trap water and bleed dye.
3. Move furniture off the wet area, or put blocks under the legs.
4. Do not use heat guns or space heaters aimed at the floor; rapid heat can crack boards.
5. Call for professional drying quickly. Hardwood dries slowly and benefits from specialty systems.

Plaster in older homes

Plaster on lath tolerates water better than drywall but can lose its bond to the lath when soaked. After drying, a contractor checks for sagging or hollow sounds. Older plaster and some older textured finishes may need testing before they are cut, because the EPA lists some older building materials among products that may contain asbestos.

Painted and specialty finishes

Lime plaster, Venetian plaster and hand-troweled finishes are hard to patch invisibly. Ask your contractor about specialists for these finishes, and photograph them in good light before any repair so color and texture can be matched.

Art, rugs and furniture

For water-damaged art, antiques, or valuable rugs, the EPA suggests consulting a specialist in restoration or conservation for items that are expensive or sentimental. The American Institute for Conservation maintains a directory of conservators.

Patience pays with wood

Cupped boards often flatten as the subfloor and wood dry. Sanding too early is a common and expensive mistake, because boards that are still wet at the bottom can crown later. Ask your contractor to record moisture readings in the boards and subfloor until they match an unaffected room, and only then decide on sanding, refinishing or replacement.

Sources, accessed Oct 16 to 17, 2026: American Institute for Conservation: Find a conservator · EPA: A brief guide to mold, moisture and your home · EPA: Learn about asbestos