Knowing how to keep your house warm in winter can make all the difference when the temperatures drop and the heating bills start creeping up.
The good news is, you don’t always need to spend a fortune to stay cosy. A few smart tweaks around the house, some basic maintenance, and a little forward planning can help keep the warmth in and the cold firmly out.
- Simple tweaks that make your home feel warmer without touching the thermostat
- Common draught spots and how to deal with them
- How your heating system plays a big part in winter comfort
Let’s start with something easy: using your heating and hot water more efficiently.
Time your heating and hot water smartly to keep your house warm in winter
One of the easiest ways to keep your house warm in winter without wasting energy is to take control of when your heating and hot water actually come on.
If you’ve got a system boiler, you’re probably heating a full tank of water even when you don’t need it. Using a timer means you can have it ready just before you get up or when you’re due home, rather than heating water round the clock. For most modern systems, 20 minutes is usually enough to get it up to temperature.
Same goes for your central heating. If you’re out during the day, there’s no point blasting the radiators while no one’s home. Set your heating to come on half an hour before you wake up or get back through the door. Most timers and thermostats make it really easy to adjust things throughout the week.
And if your boiler is on the older side or takes ages to heat up, that could be a sign it’s time to think about a new boiler installation. A newer, more efficient model can make a big difference — not just in how quickly your home warms up, but in how much you spend keeping it that way.
Use natural heat to your advantage and keep your house warm in winter
When the sun does make an appearance, even in the colder months, it’s worth making the most of it. Natural heat might not be strong enough to warm the whole house, but it can take the edge off — especially in south-facing rooms.
If you’ve got large windows, patio doors or a conservatory that catches the light, leave curtains and blinds open during the day to let the warmth in. Even a little bit of winter sun can make a noticeable difference.
Once the light fades, though, you’ll want to close everything up again. Thick curtains or thermal blinds act like an extra layer of insulation, keeping the heat you’ve built up inside. It’s surprising how much warmth escapes through uncovered glass once the temperature drops.
And if you’ve got any draughts coming through window frames, it’s worth sealing those up too. Local Dorset plumbers like us often spot these during heating checks — they’re small fixes, but they make a big difference in how comfortable your space feels.
Find and fix draughts to help keep your house warm in winter
Even with the heating on full blast, it’s hard to stay warm if cold air is sneaking in through the gaps. Older homes are especially prone to draughts, but even newer ones can have a few hidden spots where heat escapes and cold creeps in.
Here’s where to look and what you can do:
- Around doors and windows
Use decorator’s caulk to seal any visible gaps. It’s flexible, easy to apply, and makes an instant difference. Adding keyhole covers and draught brushes to external doors also helps stop cold air sneaking in from outside. - Skirting boards and floorboards
Gaps along the floor let warm air escape and bring in chilly draughts. Seal where you can, and use thick rugs to cover exposed boards — it’s a quick fix with a big impact. - Letterboxes and chimneys
Letterbox flaps can rattle and let in a surprising amount of air. Chimneys, even when not in use, can act like a vacuum. A chimney balloon is an easy way to block the cold and keep your heat where it should be. - Loft hatches and utility cupboards
Often overlooked, these areas can let warm air rise and vanish. Adding a draught excluder or some insulation tape can help seal them up nicely.
Spending an hour or two tackling these spots could save you from cranking the heating up — and give your boiler a bit of a break during the colder months.
Boost your boiler’s performance to keep your house warm in winter
Your boiler’s doing most of the heavy lifting when it comes to staying warm, so giving it a bit of attention can make a big difference. Even if it seems to be working fine, small tweaks and regular checks help it run more efficiently — and help you stay warmer for longer.
Here are a few things worth doing:
- Bleed your radiators
If the tops of your radiators are cold or they’re making gurgling noises, they might have air trapped inside. Bleeding them gets the hot water flowing properly again and takes some strain off the boiler. - Check your pressure
Low pressure is one of the most common winter issues. Keep an eye on the gauge — it should sit around 1 to 1.5 bar when the system is cool. If you’re topping it up often, it’s worth having someone take a look. - Book in for a service
Regular servicing keeps everything running safely and efficiently. It also helps catch small problems before they turn into winter breakdowns. If it’s been a while, it’s probably time to book your boiler servicing. - Consider a new boiler if yours is older
Older systems often struggle to keep up in winter, costing more to run and taking longer to heat your home. If yours is 10–15 years old or more, it might be time to think about a boiler installation. A newer model will be far more efficient — and noticeably better at keeping the whole house warm.
When your boiler’s working properly, everything else works better too. Less noise, faster heating, and lower bills — it’s a win all round.
Insulate to keep your house warm in winter
Good insulation makes everything easier. It helps keep the heat you’ve paid for inside, reduces the load on your boiler, and keeps things cosier for longer — even when the heating’s off.
There are plenty of simple ways to improve insulation around the house without turning it into a full renovation project:
- Loft insulation
A huge amount of heat escapes through the roof if your loft isn’t properly insulated. If it feels noticeably colder upstairs, this could be the reason. Topping up your insulation can have an immediate effect. - Pipe lagging
Wrapping exposed pipes (especially in lofts, garages or airing cupboards) helps prevent heat loss and reduces the risk of freezing. It’s cheap, quick to install, and protects your heating system in the long run. - Thick curtains and draught-proof blinds
Swapping lightweight curtains for lined or thermal ones adds an extra barrier between the cold glass and your warm room. Keeping them shut at night helps trap the heat inside. - Radiator reflector panels
These sit behind your radiators and reflect heat back into the room, rather than letting it escape through the wall — particularly useful on external walls.
Even small insulation improvements can have a big impact, especially when combined with the other changes we’ve talked about. It all adds up to a warmer, more efficient home.
Small changes that help keep your house warm in winter
Keeping your house warm in winter doesn’t always mean turning the thermostat up. A few small changes around the home — fixing draughts, using heating timers, checking your boiler and adding insulation — can all make a noticeable difference in how warm your home feels and how much energy you’re using.
If you’re still feeling the chill after making these tweaks, it might be time to get your heating system checked over. We’re happy to help with boiler installation, boiler servicing, or just some advice on what might be letting the warmth out.
And if you’ve not had a winter check yet, it’s well worth booking in before the cold really sets in.
