Before the Cold Settles In: A Sensible Winter Check for Older Houses

By the middle of November, the question changes. It is no longer whether the house is warm, but where the warmth goes. Older houses have their own way of answering. A sash window rattles in a north wind. A chimney gives back a smell of soot. A corner of the bedroom ceiling darkens, quietly, as if it has been waiting for the cold to prove a point.

This is the season when owners of period homes are tempted to panic. The energy rating looks poor. The windows are single glazed. The walls are solid. The obvious solution, according to a certain kind of advice, is to strip the house back and start again. We would urge patience. An old house is not a failed new house. It is a different kind of building, with different habits, and it deserves to be treated with understanding rather than force.

First, Find the Draught, Not the Wrecking Ball

A draught is not the same as fresh air. A house that is too airtight can be as troublesome as one that is too leaky, especially when moisture has nowhere to go. Before reaching for sealant, spend a cold evening finding where the air actually moves. A candle held at the edge of a window frame, a wet finger run along a skirting board, a sheet of newspaper held against a chimney opening: these are old methods, but they still work.

Most draughts in period homes come from a handful of places. Letterboxes, keyholes, gaps under doors, loft hatches, floorboards, chimney flues and the edges of sash windows will account for more discomfort than the walls ever will. These are also the easiest places to make a difference without damaging the fabric of the building.

The Measures That Earn Their Keep

Start with draught-proofing. Brush seals on external doors, a flap over the letterbox, a keyhole cover and a chimney draught excluder are inexpensive and reversible. For sash windows, consider discreet draught strips or secondary glazing rather than replacement. Secondary glazing is often the sensible compromise in a period home: it improves comfort and cuts noise without throwing away the original joinery.

Heavy curtains, properly lined and drawn at dusk, do more than they are given credit for. So does a well-fitted curtain rail that sits close to the wall. Fit a curtain across a draughty door if you can do so without making the room feel like a tent. Use a chimney balloon only when the flue is not in use, and always follow the manufacturer’s instructions.

Loft insulation is usually the next sensible step, provided the roof is ventilated correctly and the insulation does not block the eaves. If you have a hot water cylinder, a jacket is a small expense with a quick return. Heating controls matter too: thermostatic radiator valves, a programmable thermostat and a clear separation between heating and hot water will often save more than a new boiler.

Condensation Is a Ventilation Story

Condensation is not simply a sign that the house is cold. It is a sign that warm, moist air is meeting a cold surface. Cooking, showering, drying clothes indoors and even breathing add moisture to the air. In an old house, the answer is rarely to seal every gap. It is to manage moisture and give it a route out.

Use extractor fans in the kitchen and bathroom, and keep them running for a little longer than feels necessary. Open a window briefly after a shower. Dry clothes outside when possible, or in a room with the door closed and a window open. Do not block airbricks or vents. If condensation is persistent, look for leaks, blocked gutters and rising damp before assuming the house needs a new roof.

What Surveyors Notice

A surveyor walking round a period house in winter is looking for a story, not a score. They will notice stained ceilings, damp patches, bubbling paint, blocked gutters, cracked render and overflowing downpipes. They will look at the roof, the chimney stack, the ventilation and the subfloor. They will ask whether the house has been allowed to breathe.

They will also notice the things that have been done badly. Cement render on a solid wall, non-breathable paint on lime plaster, sealed chimneys and blocked vents are common causes of trouble. These are not necessarily deal-breakers, but they are useful signals. A house that has been treated with impatience will often show it.

What Vendors Should Fix Before a Winter Sale

If you are selling a period home this winter, do the small things first. Clear the gutters. Repair the leaking downpipe. Service the boiler. Fix the dripping tap that has stained the ceiling below. Make sure the loft is ventilated and the chimney is capped if it is no longer in use. These are not glamorous improvements, but they remove doubt from a buyer’s mind.

Have the Energy Performance Certificate in order and be ready to explain it honestly. An old house may never reach the rating of a new build, and that is not a reason to apologise. What buyers want to know is whether the house is cared for, whether the problems are understood and whether the running costs are manageable.

Energy Ratings and the Limits of the Number

An EPC is a useful document, but it is not a verdict on the house. It measures certain things and ignores others. It may not account for the comfort of a well-insulated loft, the benefit of heavy curtains or the value of a sheltered position. It certainly does not measure character.

This does not mean energy performance should be ignored. It means it should be read sensibly. Improve the fabric where you can, especially draughts and insulation, but do not assume that a low rating requires the wholesale removal of original features. In many cases, the cheapest improvements are also the least destructive.

Where Patience Is the Right Material

Old houses are not sealed boxes. They move, breathe and dry out at their own pace. Lime plaster, solid walls and suspended floors behave differently from modern materials, and they often need different solutions. If you are considering major retrofit work, take advice from someone who understands historic buildings. In a listed building or conservation area, check what consent is required before you start.

Patience is not an excuse for neglect. It is a recognition that an old house rewards careful observation. Find the draught. Clear the gutter. Let the house breathe. Then, when the cold settles in, you will have done the work that matters without undoing the character that made you buy the house in the first place.