Why Preparation Decides the Finish

A kitchen is the hardest-working room in the house. Steam, splashes, hot pans, sticky fingers and the constant thud of cupboard doors closing all take their toll on painted surfaces. That is why a rushed paint job so often looks tired within a year, with chips along the door edges and patches worn away around the handles.

The good news is that the difference between a finish that lasts a decade and one that fails by spring is almost entirely in the preparation. Painting itself is the quick part. Cleaning, sanding, repairing and priming take longer, but they are what give the paint something to grip, and a surface that grips does not chip. Set aside a clear weekend, work methodically, and you will be rewarded with cabinetry that looks properly built in rather than painted over.

Clear the Decks Before You Begin

Start by emptying the cupboards you plan to paint, then remove the doors and drawer fronts. Painting doors flat, off their hinges, gives a far smoother result than wrestling with them in place, and it removes the risk of paint bridging the gaps and sealing the doors shut.

• Label everything. Number each door on the inside edge with a pencil, and pop hinges and screws into labelled freezer bags. Rehanging is much quicker when you know exactly where each piece belongs.
• Protect the room. Lay dust sheets over worktops and floors, and tape around the carcass edges with a low-tack painter's tape.
• Remove handles and knobs. If you are replacing them, check the new fittings early, as hole centres rarely match and you may need to fill and redrill.
• Work in a ventilated space. Open a window or set up a fan, especially when using solvent-based primers.

Degreasing: The Step Most People Skip

Kitchen cabinetry is coated in an invisible film of cooking oil, and no primer will adhere to grease. Ordinary washing-up liquid is not enough on its own. Use a dedicated degreaser or a strong solution of sugar soap and warm water, and work in sections from top to bottom.

Pay particular attention to the areas around the hob, the extractor hood, the bin cupboard and anywhere a hand regularly lands. A door may feel perfectly clean and still leave a faint residue on a white cloth. Keep going until the cloth comes away clean, then rinse with fresh water and allow everything to dry completely. If you have a matt or satin finish, a light rub with a fine abrasive pad at this stage helps the degreaser bite.

Sanding and Repairing for a Flawless Surface

Once dry, sand every surface that will receive paint. You are not trying to strip the old finish, only to dull the sheen and create a slightly roughened key. A 120-grit abrasive is a good starting point on solid timber, followed by 180-grit for a smooth finish. On factory-finished doors with a lacquered or vinyl wrap, a fine sanding sponge used lightly is usually sufficient.

Next, deal with the imperfections you have been ignoring for years:

• Fill dents and old handle holes with a two-part wood filler or a suitable repair compound, then sand flush once cured.
• Fill fine cracks and joints with a paintable decorator's caulk, smoothing with a damp finger.
• Sand the edges and mouldings gently by hand. Power sanders can round over a profile in seconds and the softness will show once painted.
• Remove every trace of dust. Vacuum, then wipe down with a tack cloth or a cloth barely dampened with water. Dust is the enemy of a smooth finish.

Priming: The Bond That Keeps Paint in Place

Primer is not simply a cheap first coat. It is the bridge between your cabinetry and the paint, and it does the heavy lifting when it comes to adhesion and stain blocking.

Choose according to the surface. Bare or previously painted timber does well with a quality wood primer, while melamine, laminate, MDF and factory-finished doors generally need a specialist adhesion primer designed for hard-to-stick surfaces. If the cabinets are older and have knots in the timber, or if there are water stains, a shellac-based primer will seal them and stop any yellowing bleeding through the topcoats.

Apply thin, even coats with a small foam roller for flat panels and a brush for mouldings and recesses. Two coats are often better than one thick one. Let each coat dry fully, then sand very lightly with a fine sponge to knock back any nibs, dust off, and wipe clean before moving on to your topcoats. Keep the primer and paint coats within the same system recommended by the manufacturer, as mixing brands can cause adhesion problems.

Let It Cure Before the Kitchen Gets Busy

Water-based cabinet paints feel dry within hours but continue to harden for days. Allow at least 24 hours before reassembling, and treat the doors gently for the first week. Keep the room warm, avoid steaming up the space with kettles and saucepans, and resist the urge to scrub the surfaces with an abrasive cleaner.

When you do rehang the doors, refit the hardware with care, tightening screws by hand rather than with a drill, and add small self-adhesive bumpers to the inside corners to protect the paint where doors meet the carcass. Wipe spills with a soft damp cloth, and once a month is plenty for a gentle clean. Looked after in this way, a properly prepared kitchen will hold its finish through years of Sunday roasts, homework at the table and everything else family life throws at it.