Peeling exterior paint in Indianapolis: what to do first

By Opal Waverly, Painting and Window Treatment Guides Editor. Updated September 2026

Read the pattern before you scrape

Where the paint peels tells you why. Peeling concentrated under windows, at the bottom of siding laps, behind gutters and at porch post bases points to water getting into the wood. Peeling in large sheets across a whole wall, often the sunny one, points to layers of old paint losing their bond, or to paint applied over dirt, chalk or mildew.

Peeling down to bare wood is different from peeling between layers. Bare wood showing means the bottom coat never bonded or the wood has been wet. Paint peeling off paint means an earlier coat went on over a glossy or chalky surface.

Check for water first

Walk the house after a rain. Look at gutters for overflow and at joints for drips, check that downspouts carry water away from the walls, and look for missing or cracked caulk at windows, doors and corner boards. Inside, a bathroom or kitchen wall with peeling on its outside face often means moisture from indoors pushing out through the wall.

Then probe the wood where the paint is worst. If a screwdriver sinks in, the wood is rotted and has to be cut out, not painted; see wood rot repair. In a climate with rain in every month and more than a hundred freezing nights a year, wet wood never gets a long dry season to recover on its own.

What to do first, in order

Fix the water source: gutters, downspouts, caulk joints, bathroom venting. Replace any soft wood. Then wash the surface to remove chalk, dirt and mildew, let it dry, and scrape every loose edge back to paint that is firmly bonded. Feather the edges with sandpaper so the new coat does not show ridges.

Prime all bare wood the same day it is exposed with an exterior primer, then apply two coats of a quality exterior acrylic. Washing is covered on our power washing page and the full sequence on exterior house painting.

What not to do

Do not paint over peeling paint. It will lift with the loose layer beneath it. Do not seal the bottom edges of lap siding with caulk to stop water, because those gaps let the wall dry out. Do not pressure-wash at close range to strip paint, since it drives water into the wood and can gouge it.

And do not assume the whole house needs repainting. Often the trim and a few problem areas are failing while most of the siding is sound, and a targeted repair buys years.

Older houses and lead paint

Many houses in older neighborhoods were painted long before lead was removed from residential paint in 1978, and scraping or sanding that paint creates dust that is hazardous, especially to children. If your house was built before 1978, have the old paint tested before anyone scrapes it, including you.

Federal rules set lead-safe work practices for paid renovation and repainting in pre-1978 housing, so ask any contractor how they contain and clean up paint debris on an older house. Wet scraping, plastic sheeting under the work area and careful cleanup are the basics to expect.

When it is a trim job, not a full repaint

If peeling is limited to fascia, sills and window trim, a trim-only job with rot repair often solves it for a fraction of a full repaint. If it is across whole walls, the siding needs the full prep and paint sequence.

Either way, the order does not change: stop the water, replace the rot, clean, scrape, prime, paint. Skipping a step is what brings the peeling back next spring.