Peeling, chalking exterior paint: when it is cosmetic and when the house is at risk

The house looked fine last spring

You notice it when the light hits the south side in the late afternoon. The trim around the garage has lifted in small curls. The fascia under the gutters has gone dull and leaves a white powder on your fingers. Somewhere on the siding a patch has peeled down to bare wood, and the wood underneath looks gray. The rest of the house still looks acceptable from the street, so the question is whether this is a touch-up, a repaint, or the start of something that costs real money.

I am Andrey Shelokovskiy, and we at Nomad Painting have painted homes across Dallas–Fort Worth from our office in Colleyville for years. Before I ran a painting company I spent six years at PPG Protective and Marine Coatings and I am a member of NACE, the corrosion engineers' association, so I tend to look at a failing paint job as a coatings problem first and a color problem second. That is the lens I want to give you here.

What the pattern of failure is telling you

Paint is a thin film whose only job is to stay bonded to whatever is under it and keep water and ultraviolet light off that surface. When it fails, the way it fails usually points at the cause. Chalking, the fine powder you can rub off, is the binder in the paint breaking down under sun. It is normal at the end of a coating's life and worst on the south and west faces. Peeling in sheets down to bare wood means the bond between paint and substrate failed, almost always because the surface was dirty, glossy, damp or chalky when it was painted, or because moisture is getting behind the film from inside the wall or from an unsealed joint.

Alligatoring, the pattern of cracks that looks like reptile skin, means too many layers have built up and the top coat can no longer flex with the ones under it, or a hard coating was applied over a softer one. Blistering means water or solvent vapor was trapped under the film, often from painting in direct sun or over a surface that had not dried. Mildew shows as gray or black spots on shaded, damp elevations and will grow straight through a new coat if it is not killed first.

In North Texas the climate does most of the damage. Long, intense summer sun breaks down binders; sudden storms drive water into every open joint; and the swing between a freezing night and a warm afternoon makes wood and masonry move constantly. A paint film has to flex with all of that, and the cheaper the paint and the worse the preparation, the sooner it stops being able to.

• Chalking: UV breakdown of the binder, the coating is at end of life
• Peeling to bare wood: adhesion failure from poor prep or moisture behind the film
• Alligatoring: too many layers or incompatible coatings stacked
• Blistering: trapped moisture or solvent, often from painting in direct sun
• Mildew: damp, shaded surfaces that were never treated before painting
• Rust bleed on metal: coating breached and the steel beneath is corroding

A walk around the house you can do in twenty minutes

Start on the south and west elevations because they fail first. Rub a dry dark cloth on the siding; heavy chalk means the coating is done protecting anything. Press a fingernail or a screwdriver tip into any bare or peeling wood. If it is firm, the wood is fine and you are looking at a paint problem. If it is soft or spongy, water has been in there long enough to start rot, and that is a repair before it is a paint job.

Look at every horizontal surface and every joint: window sills, the bottom edge of trim boards, the tops of fascia behind the gutters, where siding meets trim. These hold water and fail first. Check the caulk in those joints; cracked, pulled-away or missing caulk is a direct path for water behind the paint. Look under the eaves for peeling, which often points to a ventilation or gutter problem rather than the paint itself.

On brick, look for white staining, which is minerals carried out by water and tells you the masonry is wet from behind. On metal railings and doors, look for orange bleed through the paint. Write down what you find and where. That list is the difference between an estimate that fixes the problem and one that paints over it.

Can it wait a season?

Chalking on an otherwise intact film can wait; it is the coating fading out gracefully, and a fall or spring repaint will be fine. Isolated peeling where the wood underneath is sound can also wait a few months if you seal the exposed wood with a primer in the meantime so it does not weather further.

Peeling with soft wood behind it cannot wait, because every rain adds to the damage and the eventual carpentry bill. Bare wood exposed through a Texas summer grays and checks quickly, and a surface that has checked will not hold paint well without more sanding. Open caulk joints around windows should be dealt with now, even if the repaint comes later, because the water they let in does not care about your schedule.

How we approach a failing exterior, step by step

It starts with a free consultation on site. I or a project manager walks the house with you, looks at exactly the things listed above, and we talk about finishes and paint types before anyone talks about color. We then write an itemized estimate: what will be repaired, what will be prepped and how, what products go where, how many coats, and what each line costs. There are no hidden fees in it, and you can see where the money goes.

The job itself is mostly preparation. We protect landscaping, windows and walkways with drop cloths, paper and plastic. We wash the house to remove chalk, dirt and mildew, and treat mildew where it is present. Failing paint is scraped and sanded to a sound edge, bare wood is spot-primed, rotted sections are repaired or replaced, and open joints are recaulked with a flexible sealant. Only then does the top coat go on, using paints from Sherwin-Williams, Benjamin Moore or PPG chosen for the surface: a different product for wood trim than for brick, stucco or metal.

When the painting is done we remove every covering and piece of tape, clean up, and walk the house with you for touch-ups. The work carries our two-year limited warranty. The reason a repaint done this way lasts is not the paint can; it is the hours spent before the can was opened.

• Site consultation and an itemized, no-hidden-fees estimate
• Protection of landscaping, windows and hard surfaces
• Washing to remove chalk and dirt, mildew treatment where needed
• Scraping and sanding to a sound edge, spot-priming bare wood
• Carpentry repairs and recaulking of open joints
• Top coats matched to each substrate, then a cleanup and final walkthrough

What drives the price of an exterior repaint

Square footage matters less than people assume. The real drivers are condition and complexity. A house with heavy peeling needs many more hours of scraping and sanding than one that is merely faded, and the labor is where the cost lives. Height and access matter: two-story elevations, steep lots and tall gables mean ladders, lifts and slower work. The amount of trim relative to flat siding matters, because trim is detail work.

Carpentry adds cost whenever there is soft wood to replace, and so does extensive recaulking. The product you choose is a real but smaller factor; a higher-grade exterior paint costs more per gallon and typically gives you more years before the next job, which is why I usually recommend spending there. Because every one of these factors is visible on a walk-around, the itemized estimate is the honest price for your house, and that is why I do not publish a per-square-foot number.

Choosing a painter when the quotes are far apart

When three estimates come back and one is half the others, the difference is almost always preparation. Ask each painter to describe, line by line, what happens before the first coat. Ask what primer goes on bare wood and what product goes on each surface. Ask what they do about soft wood and about mildew. Ask whether the estimate is itemized or a single number, because a single number hides what was left out.

Ask about the warranty and what it covers. Ask who will be on site each day and who you call with a question. And ask them to point out, on your house, where they expect the problems to be. A painter who can read your elevations in five minutes understands coatings. One who quotes from the driveway is pricing a color change.

• Itemized estimate with prep steps, products and coats listed
• Specific primer and top coat named for each substrate
• A plan for soft wood, open joints and mildew
• Written warranty terms
• A named project manager who is reachable during the job

The errors that shorten a paint job's life

Painting over chalk without washing, so the new coat bonds to powder instead of to the house. Painting in direct afternoon sun in a Texas summer, when the surface is too hot for the film to cure properly. Skipping primer on bare wood because the paint says it is self-priming. Caulking with a cheap, rigid product that cracks in the first winter. Choosing an interior-grade or bargain exterior paint because the color was right.

The quietest mistake is painting rotten wood. It looks fine for a season, then the paint lifts and the rot has had another year under cover. If the wood is soft, it has to be repaired or replaced first; there is no coating that fixes that from the outside.

After you reach out

You contact us, we set a time for the free consultation, and we walk the house together. Within a few days you receive the itemized estimate, with the repairs and preparation spelled out so you can compare it line by line against anything else you have. When you approve, we schedule the work around the weather, since exterior coatings need dry surfaces and reasonable temperatures to cure.

During the job you have a project manager to call. At the end we walk the house, fix anything you point to, and hand you the warranty. We work across Dallas–Fort Worth, including Southlake, Grapevine, Colleyville, Flower Mound, Frisco, Plano and McKinney, and the same approach applies whether the surface is wood siding, brick, stucco, a deck that needs staining or a commercial floor that needs a coating that will survive forklifts.

Questions people ask me