Can You Paint in Winter? Cold Weather Painting Tips for London Homes

We get asked frequently whether painting can be done in winter, and the honest answer is: it depends. Interior painting is generally fine throughout winter with some adjustments; exterior painting is limited to mild spells and not advisable during the coldest months. Here is what North London homeowners need to know about cold weather painting in their homes.

Interior Painting in Winter: Mostly Fine

Interior painting in heated homes is feasible year-round. The key requirements are that the surface and air temperature are above 10°C — easily achieved in an occupied Hampstead or Highgate home with central heating running. Winter interior painting does require some specific considerations:

• Adequate ventilation: Paint requires ventilation to cure properly, but opening windows wide in January is impractical. Open windows in the room being painted for short periods to allow solvent and moisture to escape, then close them while the room reheats. A dehumidifier in the room during drying can also help.
• Oil-based paints take longer to cure: Traditional oil-based eggshell and gloss paints cure more slowly at low temperatures. In a cold room or one where windows must be kept closed, plan for longer drying times between coats — 24 hours rather than the stated 8–12 hours may be more realistic in winter.
• Avoid painting cold external walls: External walls in cold weather can be significantly colder than the room air temperature, particularly on north-facing rooms. Touch the surface before painting — if it feels cold to the touch, the paint will cool rapidly on contact and may not flow or adhere properly.

Water-Based Paints in Winter

Modern water-based emulsions and eggshells are more sensitive to temperature than oil-based paints in one specific way: they must not freeze before they are fully cured. Store paint in a frost-free location and never apply water-based paint to surfaces that are at or near freezing point. Once applied in a properly heated room, water-based paints perform well in winter conditions.

Exterior Painting in Winter: Proceed Carefully

Exterior painting in winter is limited but not impossible. The conditions required — surface temperature above 10°C, no frost within 24 hours, no rain during application and curing — are occasionally met in London's mild spells, particularly in November and early March. However, the risk of an unexpected cold snap or overnight frost damaging fresh exterior paint is significant. We advise against exterior masonry painting on any surface from December to February unless a sustained warm spell is forecast with confidence.

Exterior timber work — sash windows, front doors — is slightly more forgiving than masonry, but the same principles apply. Never paint exterior timber when rain is expected within the drying time, and always ensure the surface is completely dry before applying any paint or wood treatment.

What Winter Is Good For

Rather than fighting winter's limitations, use the season well. Winter is ideal for:

• Interior decoration projects — full room redecorations, kitchen cabinet painting, hallway and staircase painting
• Planning and booking exterior painting for spring — our spring and early summer diary fills from January
• Preparation work: filling cracks in plasterwork, stripping old wallpaper, sanding back woodwork in readiness for spring painting
• Colour selection — visit showrooms, order sample pots, live with colours in your winter light before making final decisions

Call Hampstead Painting Company on 020 3874 2670 to discuss your winter interior painting project or to book for spring.