Painting a Front Door: Timber, Composite and Metal Doors Done Properly

Painting a front door is a small job that everyone notices from the street. Done well, it lifts the whole house. Done in a hurry, it sticks to the frame, sags on the panels and peels within a couple of years.

The right method depends on what the door is made of, and on the weather that day. This is how our exterior painting team handles timber, composite, uPVC and steel doors across Manchester.

In short

• Timber, composite, uPVC and steel front doors can all be painted, but each needs its own primer.
• Take off the letterbox, knocker and handles rather than painting around them.
• Bare timber is sanded, knotted and primed before any undercoat or topcoat goes on.
• Paint a panelled door in order: mouldings, panels, muntins, rails, stiles, then edges.
• Start on a dry morning so the door can be shut and locked by evening.
• Dark colours on a sun-facing door run hot, which stresses timber and can bow plastic doors.

Painting a front door starts with what it is made of

Front doors in Greater Manchester fall into four broad groups. Victorian terraces in Withington, Didsbury and Levenshulme still have plenty of original timber doors. Many 1930s semis have a timber door that has been replaced at least once. Newer estates are mostly composite and uPVC, with the odd steel security door.

Each type can be painted. However, the preparation, the primer and the risks are different, as the table shows.

Painting a composite or uPVC door: check the guarantee

A composite door has a glass-reinforced plastic (GRP) skin over an insulated core. The skin is usually coloured in the factory and moulded with a wood grain. It takes paint once it has been cleaned, degreased and lightly keyed with a fine abrasive pad. An adhesion primer that its maker lists for GRP then gives the topcoat something to grip.

The bigger question is the guarantee. Painting can void some manufacturers’ cover, so read the paperwork before you open a tin. uPVC doors carry the same warning, plus a heat problem we explain in our guide to painting uPVC windows and doors.

Take the door furniture off first

Painting around a letterbox never looks right. The brush leaves a ridge against the brass, and the paint cracks the first time the flap snaps shut. Therefore the furniture comes off:

• the letterbox plate and any inner flap or letterbox tidy
• the knocker, centre knob and pull handle
• lever handles and keyhole escutcheons
• house numbers and the door viewer trim, where they unscrew cleanly

Each piece goes into a labelled bag with its screws. The lock cylinder stays in place but is masked with low-tack tape. Draught strips are lifted out or masked, because paint stiffens them and stops them sealing.

Preparing a timber front door

Preparation takes longer than the painting, and it decides how long the finish lasts. As part of our surface preparation and finishing work, a timber door usually goes through this sequence:

1. The door is washed down with sugar soap, rinsed and left to dry.
2. Flaking paint is scraped back to a firm edge.
3. Sound paint is keyed with 120 to 180 grit abrasive, and the edges of old chips are feathered so they will not show.
4. Holes and splits are filled with a two-part exterior wood filler, then sanded flush.
5. Knots on bare timber are sealed with knotting solution or Zinsser B-I-N, so resin cannot bleed through.
6. Bare timber is primed with an exterior wood primer, followed by an undercoat.

Importantly, doors first painted before the 1960s can have lead in the lower layers. On the period homes we decorate in Altrincham, Bowdon and Hale, old paint is tested before anything is sanded. If lead is present, it is wet-abraded or chemically stripped, never dry-sanded.

One job is often missed: the bottom edge. It is end grain, and it soaks up water splashing off the step. If the door can be lifted off safely, the bottom edge is primed and painted. If not, paint is worked in with an angled brush as far as it will reach.

Glazed doors need one extra step. The paint is taken a millimetre or two onto the glass, which seals the putty or bead against rain.

How to paint a front door in the right order

A four- or six-panel door has a set order. It keeps a wet edge moving and stops you brushing into paint that has started to set. We work in this sequence:

1. The mouldings around each panel, with a small brush and a light load.
2. The panels, laid off in the direction of the grain.
3. The muntins, which are the vertical pieces between the panels.
4. The rails, top, middle and bottom, brushed across the door.
5. The stiles, which are the outer uprights, from top to bottom.
6. The edges, last of all.

Paint gathers in the corners of mouldings and runs a few minutes later. As a result, each panel is checked before moving on, and any sags are brushed out while still wet.

The edges follow a simple rule. The lock edge takes the inside colour, and the hinge edge takes the outside colour. That way, the open door looks right from both the hall and the path.

Keep coats thin in the frame rebate too. Built-up paint there is what makes doors stick.

Best paint finish for a front door: gloss, satin or eggshell

Gloss is the traditional front door finish. It sheds water, wipes clean and suits Victorian and Edwardian doors. However, it shows every dent and brush mark, so the preparation has to be meticulous.

Satin and exterior eggshell have a softer sheen. They are kinder to older, knocked-about timber and suit contemporary colours. Water-based versions, such as Little Greene Intelligent Exterior Eggshell and Farrow & Ball Exterior Eggshell, stay flexible as the timber moves. They also avoid the yellowing that oil-based whites are known for.

For a deep, traditional shine, Dulux Trade Weathershield Exterior High Gloss remains a proven choice. We compare sheen levels in more detail in our guide to matt, eggshell, satin and gloss finishes. On period properties, heritage colours from Farrow & Ball or Little Greene usually sit better than bright modern shades.

How long front door paint takes to dry

Front doors are awkward because they cannot stay open overnight. The paint must be dry enough to close before you lock up. That makes the start time as important as the paint.

Water-based exterior paints are usually touch dry in an hour or two, with a recoat time of a few hours. Oil-based gloss is slower and often needs overnight before a second coat. Always follow the recoat time on the tin, since temperature and humidity change it.

In Manchester, damp westerly weather and early dew are the main enemies. Therefore we look for:

• a dry forecast for the whole day, not just the morning
• air and surface temperatures above the minimum on the tin, and rising
• no rain or heavy dew due within a few hours of the last coat
• no strong sun beating on the door while the paint is wet

Even when paint feels dry, it stays soft for days. Acrylics in particular can stick to the frame and seals, a fault called blocking. Thin coats on the edges help, and so does leaving the door ajar for as long as you can.

For the seasonal picture, see our guide to the best time to paint a house exterior in the UK.

Why a freshly painted door sticks

A sticking door is usually one of three things. Years of paint have built up on the edges or in the rebate. The new coat has not hardened yet. Or damp weather has swollen the timber, often through an unsealed bottom edge.

Built-up paint is cut back and the edge repainted thinly. Soft paint simply needs time, so avoid forcing the door. Swelling settles once the timber is sealed on all six faces, including the top and bottom edges.

Dark colours on sun-facing doors

Deep greens, navies and near-blacks look sharp against white render. However, dark paint absorbs far more heat than pale colours. On a south- or west-facing door in July, the surface can get hot enough to soften paint. It can also draw resin out of knots.

Timber moves more under that heat, so joints can open and fine cracks appear. Composite and uPVC doors carry an extra risk, because the skin or frame can bow. If your door takes the afternoon sun, a mid-tone is the safer choice.

Where we draw the line

We will not start a front door late on a damp afternoon when it has to be shut and locked by evening. By mid-afternoon in autumn, the temperature is falling and dew is on its way. Paint applied then is still wet when the door closes.

The result is predictable. The door sticks to the frame, the seals tear the fresh paint, and moisture dulls gloss or leaves sticky streaks on water-based coatings. Then it all has to be done again.

Therefore a front door is always a morning start with us, even if that means waiting a day. It is not the quickest route, but it is the one that lasts.

That said, painting a front door yourself is a fair DIY job if the timber is sound and the weather is kind. A decorator earns their keep on doors that need stripping, lead-safe preparation or a flawless gloss.

We often paint front doors as part of a whole-home kerb appeal refresh in Wythenshawe, or as pre-sale presentation work in Rochdale. Landlords and businesses get the same approach through our residential and commercial painting service.

Get a free quote in Manchester

If your front door needs more than a quick refresh, we are happy to take a look. We cover the whole of Greater Manchester from our base in Cheadle. Our Manchester house painters page lists the areas we work in. Cost depends on the door’s condition and the preparation it needs, so we always see it first.

Quotes are free and no-obligation. Contact us online or call 07835 733353.

Frequently asked questions