Painting a Period Staircase: Treads, Risers, and Strings

The staircase is the one surface in a period London home that cannot be closed off while it is decorated. The specification is driven by three things: the wear the treads take underfoot, the sheen each part of the stair can carry, and the order of work that keeps the household functioning between coats. Settle those before anyone opens a tin.

Where the staircase sits in the redecoration

Paint the staircase late in a whole-house programme, not early. It connects every floor, it carries foot traffic and furniture movement, and it is the route trades and decorators use to reach other rooms. If it is decorated first, the new finish absorbs the wear of the rest of the project. The practical order is: rooms first, staircase near the end, with a clear drying window before the house returns to normal use.

The exception is heavy preparation. Stripping worn coatings, filling, and sanding create dust, so that stage belongs with the dusty phase of the project, well before fine finishing coats go on elsewhere.

What the existing surface tells you

Start by identifying what is already on the stair, because it decides the preparation route:

• Previously painted softwood treads and risers are the common case in Victorian and Edwardian homes. Check for wear through to bare timber on tread nosings and the front edge of each tread, where heels strike first.
• Strings and skirting-level boards usually show impact damage rather than foot wear — scuffs from furniture, vacuum cleaners, and shoes. These need filling rather than the heavier sanding a tread might.
• Carpeted stairs being returned to painted timber need the gripper rods and remnants removed, tack holes filled, and the timber sanded back evenly before any coating decision is made. The timber under a decades-old carpet is often sound but marked.
• Thick, chipping build-up from many coats of gloss needs full removal on treads, where the edges of worn coats become a trip hazard as much as a visual one.

If the coating is failing across large areas of the tread surface, spot-priming patches will show through the final colour. A full strip of the treads, with the risers only sanded and stabilised, is often the honest route.

Preparation: treads, risers, and strings need different treatment

Each part of the staircase takes a different kind of punishment, so prepare each accordingly.

Treads collect polish, foot grease, and general grime. Wash them down with a degreasing cleaner before sanding, or the sander drags contamination into the grain. Once clean and dry, sand evenly, fill the deeper heel dents, and pay attention to the nosing edge, where coatings fail first.

Risers take less wear but more visual scrutiny — they sit at eye level on the way up. Filler here needs to be fine and well sanded, because side light along the stair reveals every ripple in a flat vertical surface.

Strings — the sloping boards running alongside the treads — collect scuffs at handrail height and at skirting level. Fill, spot-prime, and sand these areas; a full flat sand is rarely needed unless the existing coating is failing.

Vacuum between every stage. Stair dust travels through the whole house on socks and airflow, and it ruins a smooth finish on the risers more than anywhere else.

Sheen and coating choice for each surface

The staircase is one structure, but it does not need one sheen. In fact, a single sheen across treads, risers, and strings usually works against the stair.

• Treads need the hardest-wearing coating in the house after the floor itself. A dedicated floor paint or a hard-drying trim system in a low-to-mid sheen stands up to foot traffic; high gloss on treads shows every scratch and can be slippery underfoot.
• Risers can take a softer, lower sheen. They are seen more than they are touched, and a matte or eggshell finish hides minor imperfections that a gloss would broadcast.
• Strings sit between the two. A mid sheen — eggshell or satin — resists the scuffs and wipe-downs they receive without the glare of gloss in a narrow stairwell.

Colour follows the same logic. Darker strings and treads with lighter risers is a period pattern that reads well and hides wear where wear actually happens. Painting everything one colour flattens the architecture of the stair, which in a period home is often its best feature.

The sequence that keeps the house usable

The constraint on staircase work is not the coating — it is access. A household needs to reach bedrooms while the stair is mid-decoration. Two approaches work:

1. Alternate treads. Paint every other tread first, let them cure, then paint the remainder. The household steps on the dry set only. This slows the job but keeps the house liveable.
2. A clear window. If the household can arrange a night or two away, the whole stair can be coated in sequence without the stepping pattern, and the finish cures undisturbed.

Work from the top down for the final coats, so you are not walking over fresh work carrying tools. Protect banisters and carpet on landings with sheeting, and keep the stairwell ventilated — enclosed stairwells hold dust and slow drying more than open rooms.

For the balustrade itself, spindles are the slowest part of any staircase by hand. Where the scheme suits it, spray finishing gives spindles and balustrades an even coating without brush build-up in the turning profiles — a decision worth making before the programme starts rather than halfway through.

Working the staircase into the wider scheme

A staircase rarely stands alone. It is seen from the hallway, the landing, and often directly from the living room, so its colour belongs in the same conversation as the rest of the painting and decorating scheme. A stair painted in isolation from the rooms it connects tends to look like an afterthought, even when the workmanship is good.

Practical points to settle early:

• Whether the strings match the hallway woodwork or take their own colour.
• Whether the underside of the stair (often visible from the hall in period homes) is included in the scope — it is a large painted surface that is easy to forget in a quote.
• How the stair meets the carpet or floor finish on the landing, and where the paint line stops.

Quality checklist before handover

Before the staircase is signed off, check:

• Tread nosings show a clean, unworn edge with no visible coating breaks or filler shadows.
• Risers read flat under side light along the stair, with no roller stipple or brush drag visible at eye level.
• Strings are free of scuff marks and filler patches match the surrounding sheen.
• The cut lines where treads meet risers, and where strings meet plaster, are straight and consistent the full length of the stair.
• Spindles and handrail carry an even film with no pooling in the turnings.
• The underside of the stair, if in scope, matches the rest of the finish.
• The household has been told how long the treads need before full foot traffic resumes.

That last point matters more than people expect. A coating that is dry to the touch is not the same as a coating that is cured, and treads are the one surface where premature use shows immediately.

Deciding the scope before the work starts

If you are weighing up whether to bring in a decorator for the staircase, the useful first step is a look at the stair itself: what is on the treads now, where the wear has broken through, and whether the household can give the stair a clear drying window. Pulse N' Paint takes on staircase work as part of wider painting and decorating programmes across Central London, West London, South West London, and Surrey, and a site visit settles the sheen, colour, and sequence questions above before any preparation begins.