How Long Should Interior Paint Really Last?
Written by John Gasiamis, Founder — John's Handyman Service
A well-prepped interior paint job should last 10 to 15 years in normal living areas, and closer to 5 to 8 years in high-traffic spots like hallways, kids' rooms and kitchens where walls get knocked and wiped down more often.
Prep work — sanding back old paint, filling holes and cracks properly, priming bare or patched areas — is what actually determines how long a paint job lasts, more than which paint brand goes on top. Skipping prep is the most common reason a job fails early: paint peeling or flaking within a year or two almost always traces back to painting over a surface that wasn't properly prepared.
What good prep actually involves
On most homes this means filling nail holes and hairline cracks with the right filler (not just papering over them with a thick coat of paint), sanding glossy old paint so the new coat has something to grip, and spot-priming any patched or bare plaster so it doesn't absorb paint differently to the surrounding wall — that difference in absorption is what causes flat, uneven patches to show through months later, even after the paint has dried.
The honest version of this: cheaper paint applied properly over good prep will usually outlast expensive paint applied over walls that weren't prepped first. The prep is where the job is actually won or lost.
A hallway in a Preston home had been repainted three times in under five years, always with the same peeling problem in one corner. It turned out to be a slow damp patch from an external issue, not a paint problem at all — no amount of prep or paint brand would have fixed it until the damp was addressed first.
Common questions
Almost always because the surface underneath wasn't properly prepped — painting over old glossy paint, unfilled cracks, or damp plaster all lead to early failure regardless of paint quality.
Only once the prep is right. A mid-range paint over good prep will outlast a premium paint applied over a poorly prepared wall.
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