Preparing Your Home for Winter: A Seasonal Checklist

The first cold snap always brings a small list of surprises: a radiator that stays cold, a draught along the skirting board you never noticed in July, a gutter quietly filled with leaves. None of these is a disaster. All of them are easier to sort out on a mild Saturday in autumn than on a dark Tuesday in January, when the heating engineer's diary is full and your fingers are numb. What follows is a sensible order of work, arranged so the jobs that matter most get done first.

Start with the heating, before you need it

When a boiler fails, it tends to fail on the coldest weekend of the year — and everyone else's seems to fail at the same time. Book a service in early autumn, while engineers still have appointments to spare. Anything involving gas, the flue or the boiler's internals is not a DIY job; use a registered engineer. While they are there, ask them to point out the isolation valve and the fuse spur so you know how to shut the system down quickly if something starts leaking.

Bleed the radiators

A radiator that is hot at the bottom and cold at the top is holding air. A radiator key costs very little, and the job takes ten minutes: turn the key gently, let the hiss out, and close it the moment water appears. Work through the house, then check the pressure gauge on the boiler — bleeding lets pressure drop, and you may need to top it back up to the level marked in the manual.

Two other things worth a look. Radiators that are cold at the bottom, or uneven across the panel, usually point to sludge in the system, which is a job for a heating engineer rather than a screwdriver. And thermostatic valves that have sat untouched all summer often seize; turn each one fully one way and then the other so it moves freely again. If you have a heat pump or a warm-air system, clear leaves and debris from the outdoor unit and change the filters before the season starts.

Stop the draughts, then think about insulation

The cheapest heat is the heat you don't lose. Before you touch the thermostat, walk the ground floor with the back of your hand near the edges of doors and windows; you will find the culprits quickly. Letterbox brushes, a keyhole cover, a weighted draught excluder at the bottom of the back door and a bead of sealant along a gap under the skirting can make a noticeable difference for very little money. On single-glazed windows, secondary glazing film stretched tight over the frame is ugly for a week and surprisingly effective afterwards. Heavy curtains, hung close to the wall and long enough to touch the floor, do more than decorative ones.

One warning worth repeating: draught-proofing and ventilation are not the same thing. Gas appliances, open fires and wood burners need air, and the trickle vents on modern windows are there for a reason. Never block an air brick or a purpose-made vent. If you burn gas or solid fuel anywhere in the house and don't have a carbon monoxide alarm, buy one today — that is the single most important item on this list.

In the loft, check that insulation is lying flat rather than squashed, and that it isn't pushed into the eaves where it would block airflow. Lag any exposed hot water pipes and check the cylinder jacket is properly fastened. Cavity wall and solid wall insulation are bigger projects; if you go down that road, use an accredited installer and get the ventilation details right.

Gutters, pipes and the garden

Water is what does the damage

Clear the gutters once the leaves have fallen, and check that downpipes actually carry water away rather than dripping down the wall. Look at where the water ends up: if it pools against the house, a short extension or a gravel-filled channel will move it clear. Outside taps should be isolated at the indoor valve and then opened to drain whatever is left in the pipe. Any exposed pipework in a garage, outbuilding or cold corner deserves foam lagging. Check gullies and drains for leaf litter before the first heavy rain, and look at the roof from ground level with binoculars for slipped or cracked tiles.

The garden, in one afternoon

1. Drain and coil the hose; store it indoors or in a shed.
2. Run the mower until the tank is empty, clean the underside and put it away dry.
3. Oil hand tools and hang them off the floor.
4. Move terracotta pots under cover, or raise them on feet so they don't crack with frost.
5. Group tender plants together against a sheltered wall and wrap the pots.
6. Give the lawn a final cut, slightly longer than in summer.
7. Clean and store garden furniture; bring cushions inside.
8. Check path lighting and buy grit before the first icy morning, not after.

Safety jobs that are easy to forget

Book a chimney sweep before you light the first fire, and have the stove or flue checked at the same time if you haven't used it since spring. Test every smoke alarm and replace the batteries — then check the date stamped on the back, because the units themselves don't last forever. If you use an electric blanket, examine the flex and the fabric for scorch marks or worn patches and replace anything doubtful; don't combine one with a hot water bottle.

Space heaters need air around them and a socket of their own. Keep them at least a metre from curtains, furniture and drying laundry, never run them from an extension lead, and never leave one on overnight in a room nobody is in. A fireguard in front of an open fire is not old-fashioned, it is basic. Finally, put a torch, spare batteries and a blanket somewhere you can find in the dark, and know where your fuse box is. If you rent, ask for the current gas and electrical safety records — it is a reasonable request.

A room-by-room walkthrough

• Hallway: a deep mat and a boot tray, so wet grit stops at the door.
• Living room: furniture moved clear of radiators, curtains shortened if they block the heat.
• Kitchen: extractor filter cleaned, anything that might freeze in an unheated utility moved.
• Bedrooms: heavier bedding, a spare blanket, windows that still open for ventilation.
• Bathroom: extractor fan working, no mould creeping in behind the sealant.
• Loft and garage: pipes lagged, nothing stored against the boiler, a light that works.

The comfort details that make the difference

Once the practical work is done, a few small changes make the house feel like winter rather than merely survive it. Move lamps into corners and switch the overhead light off in the evening; warm-toned bulbs are kinder than cool white ones. A rug over a cold floor, a throw on the back of each chair, a curtain over the front door — these are cheap, quick and genuinely useful. Keep a drying rack near a window that gets opened, because a house sealed tight against the cold will collect moisture on the glass and in the corners.

Put it in the diary

None of this needs to happen in one heroic weekend. Spread it over three or four Saturdays: heating and the boiler service first, because that's the job with a waiting list; draughts and insulation next; the garden and gutters after the leaves have fallen; safety checks last, with a date in the calendar to repeat them next autumn. Anything involving gas, the fuse box, the chimney or structural work belongs with a qualified professional, and it's worth the wait. Everything else you can do yourself, at your own pace, with the radio on. By the time the first really cold night arrives, you'll be warm, dry and quietly pleased with yourself.

Photo: Cara Denison / Pexels