The Wall Has Weather: Hanging Paintings in British Light

November is a good month for noticing light. The sun sits low, the sky turns to pewter by three, and a painting that looked perfectly behaved in July can suddenly read like a mirror or a slab of grey. People often blame the painting. Usually it is the wall, the window and the hour of the day having a quiet argument.

Hanging a painting is not just a question of height and a spirit level. It is a lighting decision. In a British room, that decision changes with the seasons. The good news is that you can test almost everything before a drill bit goes anywhere near the plaster.

First, learn what your room is doing

A north-facing room gives you the steady, cool light that galleries tend to like. It is gentle and fairly consistent, but it can flatten warm colours and make a canvas feel a little remote in winter. A south-facing room is the opposite: generous, bright and occasionally brutal. East light arrives with energy and leaves early. West light stretches out in the evening and can turn gold, then orange, then strangely blue.

In the UK, we also have a lot of diffuse weather. That soft grey light is not a problem in itself. It is often kind to texture. But it means the moments of direct sun are more noticeable when they come. Low winter sun can rake across a wall at an angle no summer sun ever would, picking out every brush ridge and every speck of dust on the glass.

So before you decide a painting is too dark, too shiny or too cool, watch the wall. Not for five minutes. For a few days, if you can. The painting is not on trial. The wall is.

The tests to try before you drill

Start with a paper template. Cut a sheet to the exact size of the painting, tape it to the wall at the height you are considering, and live with it for a week. It sounds fussy. It is also much less fussy than filling old holes.

Then try what I call the clock test. Look at the template at breakfast, at lunch, at the time you usually sit down in the evening, and once with the room lights on. You are not checking whether the paper is beautiful. You are checking where the light lands, where your own shadow falls, and whether the wall becomes a bright panel behind you.

Next, the two-chair test. Sit where you would actually sit to look at the work. Then sit where a guest would sit. If one position gives you a clean view and the other gives you a bright rectangle of window reflected in the surface, you have found your glare problem early. Move the template left or right, up or down, and repeat. Sometimes half a metre is all it takes.

A phone torch is useful for a quick surface check. Hold it at the angle your eye would be, not straight on. Glossy varnish, standard glass and metallic frames will throw light back at you. You can also step back and squint. Squinting is undignified, but it tells you whether the painting holds its shape when the details blur. If it turns into a pale haze, the surface may be fighting the room.

When glass, varnish and frame finish make it worse

Glass is the usual suspect. Standard glazing reflects whatever is opposite it: a window, a lamp, a pale sofa, a doorway. Anti-reflective glass reduces the effect, but it does not make reflection disappear. It is also worth remembering that glazed work on paper can look slightly cooler and more distant than an unglazed canvas. That is not a fault. It is a material difference.

Varnish is the quieter culprit. A high-gloss varnish can look rich in a dim studio and then turn into a sheet of light in a bright front room. A matte varnish softens reflections, but it can also mute depth and, in some cases, look slightly chalky under strong directional light. Satin sits between the two. If you are commissioning a frame or having a piece re-varnished, ask about sheen rather than just 'varnish'. It is the sheen that meets the light.

Frame finish matters too. A dark, glossy frame can act like a thin mirror. A bright metallic frame can bounce a spotlight straight back at the viewer. Pale wood and matte finishes tend to recede. None of these are bad choices. They simply behave differently on a wall that gets a lot of light.

What to ask a gallery or framer

When you buy a piece, or take one to be framed, ask practical questions. What glazing is being used, and how reflective is it? What sheen is the varnish? Will the frame finish bounce light? Is the work intended to be hung away from direct sun? Those four questions will save a lot of guesswork later.

If a gallery is lighting the work for you, ask how they would light it at home. Gallery spotlights are often tighter and more dramatic than domestic lighting. Ask about beam angle, dimmability and colour temperature. A very warm bulb can make a cool painting look muddy; a very cool bulb can make warm whites look clinical. You do not need a lighting designer. You need to know what the gallery is doing so you can approximate it, or deliberately ignore it.

Living with the weather indoors

No hanging plan defeats British light entirely. A painting will look different in February and June, in rain and in a rare clear sky. That is not a flaw in the work. It is part of living with it. The aim is not to freeze the painting in one perfect condition. The aim is to give it a wall where most of the light is kind, and where the difficult hour is short.

So test first. Move the template. Ask about glass and sheen. Then drill. A painting can survive a grey afternoon. It just deserves a wall that has been listened to.