When people compare decorators on price, what they're usually comparing — without realising it — is how much preparation each one intends to do. The topcoat is the quick part. Everything that makes it last happens before the brush is loaded.
Paint is only as good as what it sits on
A coat of paint can't fix a poor surface; it can only copy it. Apply a beautiful finish over flaking paint, dusty plaster or an unsealed repair and the new coat fails exactly where the old one did. Sound preparation gives the paint something stable to grip — which is why we treat it as part of the work, never as an optional extra.
What good preparation actually involves
On a typical interior, careful preparation means working through the surface methodically before any finish coat:
- Removing what's failing. Old wallpaper comes off where needed; loose or blown plaster is cut back; flaking and built-up paint is scraped and rubbed down.
- Raking out and filling. Cracks are opened up so filler can key in properly, then filled and sanded flush rather than smeared over.
- Making good. Damaged areas are skim-finished where the surface needs it, so walls read as one plane under low light.
- Sealing and priming. New plaster gets a mist coat; bare or repaired areas are primed so the topcoat goes on evenly instead of sinking into porous patches.
None of this shows up in a photograph. All of it shows up two years later.
Why the dull steps matter most
Filling, sanding and priming are the steps easiest to skip and hardest to fake. Skip the filling and every flaw telegraphs through the finish. Skip the priming and you get patchy sheen and poor adhesion. Skip the dust control and you trap grit under the coat. Good preparation is mostly patience — and it's the single biggest reason one decorating job outlasts another.
The short version
If you're weighing up quotes, ask each decorator how they'll prepare the surfaces, not just what paint they'll use. The honest answer to that question tells you more about the result than the brand on the tin.