Why a Front Door Repaint Is a Weekend Job Worth Doing

Your front door takes more punishment than any other piece of wood in the house. Wind-driven rain, frost, blazing summer sun and the occasional slammed delivery van all take their toll, and once the paint film starts to flake, water gets into the timber. That is when rot begins, and a simple repaint turns into a joinery job.

Fortunately, painting a front door is one of the few projects where a complete beginner can get a genuinely professional-looking result. It is low-risk, inexpensive, and satisfying. Once the preparation is done, most of the work is just patience and thin coats.

What You Will Need

• Sandpaper in 80, 120 and 180 grit, plus a sanding block
• A scraper, exterior-grade wood filler and a filling knife
• Dust sheets and masking tape
• A 50mm synthetic brush for cutting in, a 25mm brush for mouldings, and a small foam roller for flat panels
• Exterior wood paint — around 750ml is plenty for two to three coats on a standard door
• A screwdriver or cordless drill for removing hardware
• Gloves, and a dust mask for sanding
• White spirit or warm soapy water for cleaning up, depending on your paint

Step One: Take Off the Hardware and Prep the Surface

If you can lift the door off its hinges and lay it flat on trestles, do it. Working horizontally means no drips, no runs and far less strain on your arms. If that is not practical, wedge the door open and work vertically — you will simply need to watch for sags.

Remove everything: handle, letterbox, knocker, numerals, doorbell and any decorative fittings. Pop the screws into a jar or a labelled bag so nothing goes missing. Keep the hinges on if the door is staying hung. If you are working on a door with glazing, mask the glass carefully.

Scrape away any flaking or blistered paint back to bare wood, then feather the edges so you cannot feel a ridge with your fingertips. Fill cracks, dents and old screw holes with exterior-grade wood filler, leaving it slightly proud, and sand it flush once dry.

Now sand the whole door. Start with 80 grit on rough or bare areas, move to 120 to even everything out, and finish with 180 grit to give the surface a fine key for the paint to grip. Pay attention to the top and bottom edges, which are where water creeps in first. Wipe the door down with a damp cloth and let it dry completely before you open a tin.

Choosing Paint That Stands Up to British Weather

You must use exterior paint. Interior paint will chalk, crack and fail within a single season outdoors. Water-based exterior satin or gloss is the friendliest option for beginners: it dries quickly, smells far less, cleans up in water and stays slightly flexible, which helps it cope with a door that swells and shrinks with the seasons. Oil-based gloss gives a harder, glassier finish that suits period doors, but it takes far longer to dry and tends to yellow over time.

Think about colour practically as well as aesthetically. Dark colours absorb heat and show up every dent and dust speck; lighter shades are more forgiving. If your door faces south and catches the sun, a satin finish will hide imperfections better than high gloss. Buy slightly more paint than you think you need — running out halfway through a coat is a recipe for a visible patch.

Painting in Thin Layers

Two or three thin coats will always beat one thick one. Thick paint sags, skins over and traps moisture underneath, which leads to peeling next winter.

• Start with the mouldings and recessed panels, using the small brush. Paint into the corners, then lay off with the grain.
• Move to the flat stiles and rails, using the foam roller for speed and the 50mm brush to lay off the paint evenly.
• Do the edges last, including the top, bottom and hinge edges. A brush-width of paint on the bottom edge is what keeps water out of the end grain.
• Work top to bottom and brush with the grain, finishing each section with light, straight strokes to avoid brush marks.

Leave four to six hours between coats with water-based paint, or sixteen to twenty-four hours with oil-based. Lightly sand between coats with 180 grit to knock back any nibs, then wipe off the dust. Two coats is the minimum; three on a south-facing or exposed door. Do not be tempted to rush the last coat — it is the one people see.

Conditions, Curing and Refitting the Hardware

Pick your day carefully. Paint when the temperature is above 10°C and the forecast is dry for at least twenty-four hours. Avoid painting in direct sun, which makes the paint dry too fast and leaves brush marks, and avoid windy or damp, foggy conditions. Early morning on a mild, still day is often ideal.

Once the final coat is on, leave the door to harden for at least twenty-four hours, ideally forty-eight, before refitting the handle and letterbox. Handle it gently for the first week — the paint is still curing and will mark easily. Clean your brushes properly straight after use, and seal the tin firmly for touch-ups later.

After that, a quick wipe down with warm soapy water twice a year is all the maintenance a front door really needs. Touch up any chips promptly, and you will not be sanding back to bare wood again for years.