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Rising energy costs don't have to mean a cold home, even when permanent changes aren't always possible. Renters and homeowners with renovation restrictions can still take the necessary steps to trap heat and block drafts. Simple temporary fixes like thermal curtains, draft excluders and radiator reflectors can make rooms cosier while keeping bills lower - without any structural changes needed.
Why insulation matters
Think of insulation as your home's winter coat and summer shield. When heat tries to escape in winter, good insulation blocks its path, keeping your rooms snug. In summer, it works the other way, stopping hot air from creeping in and keeping your space cool.
This barrier between inside and outside temperatures makes a real difference to your bank balance. Poor insulation means your heating works overtime, pushing up energy bills. Homes without proper insulation can lose up to 60% of their heat through walls and roofs. Just by plugging these escape routes, you could save hundreds of pounds each year on heating costs.
Better insulation also means a smaller carbon footprint. When your home holds heat better, you burn less energy to stay warm. This cuts carbon emissions and helps tackle climate change, making insulation one of the simplest ways to help the environment while saving money.
Knowing your limitations
Renting puts clear limits on the changes you can make to improve insulation. Your tenancy agreement probably rules out drilling into walls, replacing windows, adding wall insulation or making other permanent alterations—at least without the landlord’s consent. Some landlords won't even allow picture hooks without permission.
But this doesn't mean you're stuck with a cold home. Many effective insulation solutions need no landlord approval and won't risk your deposit. You can use temporary fixes that come away cleanly when you move out, leaving no trace behind. From stick-on draft excluders to removable window films, there are plenty of ways to stay warmer without making lasting changes.
Low-cost, non-permanent insulation options
You don't need expensive equipment or specialist skills to make your home warmer. These affordable solutions can be installed quickly and removed easily when you move, making them perfect for renters and homeowners alike.
Windows
Thick thermal curtains trap the cold air that pools around windows, while removable insulation film adds an extra barrier similar to double glazing. Weather strips around frames can catch sneaky drafts without damaging paintwork.
Doors
A simple draft excluder stops cold air creeping under doors, while foam strips seal gaps around the frame. Hanging a heavy curtain over external doors adds another layer of protection on the chilliest days.
Floors
Large rugs with thermal underlay create a warm barrier between your feet and cold floorboards. Adding multiple layers in high-traffic areas like living rooms makes an even bigger difference to room temperature.
Walls
External walls can contribute to heat loss, but you can improve insulation with temporary solutions that require no permanent alterations. Using removable insulating wall panels or thick curtains and hangings can add an extra layer of protection and help trap heat.
Radiators
Reflective panels bounce heat back into your room instead of letting it escape through walls. For rooms you rarely use, magnetic radiator covers can help direct warmth where you need it most.
Roof spaces
If you can access your loft, laying temporary insulation rolls will have an impact on heat loss. Natural materials like sheep wool work brilliantly and can be easily removed when needed.
Tackling air leaks
Most homes have tiny gaps letting warm air escape and cold drafts sneak in. A simple candle test can reveal these sneaky air leaks. Just hold a lit candle near windows, doors and sockets. If the flame dances or flickers, you've found a draft that needs fixing.
The usual suspects are window frames, especially in older properties. Look out for gaps where different materials meet, like where wooden frames join brick walls. Pay attention to electrical sockets on outside walls too, as they often hide surprising air leaks.
You'll spot many leaks by simply running your hand along edges and feeling for cold air. Once you've found them, temporary sealants work wonders. Removable caulk or putty fills gaps without leaving marks, and both peel away cleanly when you move out. Even something as basic as rolled-up towels can block serious drafts under doors.
Don't forget less obvious spots like letterboxes and keyholes. Small covers for these make a noticeable difference to hallway temperature. Chimney balloons block unused fireplaces, though remember to remove them if you ever want to light a fire.
Landlord-friendly upgrades
Some landlords will consider permanent improvements to their property if you make a strong case. The key is showing how better insulation benefits everyone, from lower bills and more comfort for you to a more valuable, energy-efficient property for the landlord.
Some options could include:
- Secondary glazing, which adds an extra window layer and cuts heat loss and noise
- Loft insulation. It’s relatively cheap but makes a huge difference to heating bills
- Draft-proofing strips around windows and doors are a low-cost, high-impact fix
- Cavity wall insulation, which might qualify for government grants or schemes
- Basic radiator maintenance like bleeding and power-flushing improves efficiency
Build your case by gathering evidence of specific issues, like photos of condensation or readings from a room thermometer. Many landlords appreciate tenants who take an active interest in maintaining and improving their property, especially when the suggested upgrades could help them meet upcoming energy efficiency requirements.
Final tips for staying warm if you’re a renter or can’t do big renovations
Smart habits can make your home feel warmer without spending money on heating.
- Moving furniture around helps, so pull sofas and chairs away from radiators so heat circulates properly around the room.
- Position your desk or favourite armchair away from windows to avoid cold drafts while you're sitting still.
- Keep internal doors closed to trap warmth in the rooms you use most. There's no point heating your hallway or spare room if you're spending the evening in your living room.
- When you do need to warm up a cold room, open the door only after the radiator has heated up fully.
- Hot water bottles aren't just for bedtime either. They can also work when you’re on the sofa. Tuck one behind your back or under your feet while watching TV.
- Throws and blankets within easy reach mean you can add an extra layer without turning up the heating.
- Rearrange your daily routine to match the warmest parts of your home. If your kitchen gets morning sun, it's a cosy spot for breakfast.
- When working from home, follow the natural light around your space. You'll stay warmer and save on lighting too.
Making a difference
You don't need major renovations to create a warmer home. Start with quick solutions like draft excluders and thick curtains, then build up to bigger improvements. Check if your council or energy supplier offers free advice or support. At the end of the day, small changes now mean a cosier home and lower bills all winter.
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FAQs
Will putting tin foil behind my radiators really help?
Kitchen foil can work as a makeshift radiator reflector, but it's less effective than proper reflective panels. It also needs replacing more often as it can crumple and tear easily.
What's the best temporary fix for a drafty letterbox?
A brush-style letterbox cover is ideal as it lets mail through while blocking drafts. If you can't change the letterbox itself, an internal magnetic draft excluder also works well.
Can I use curtains if I have blinds already installed?
Yes, using both actually gives better insulation. Keep the blinds closed and add thermal curtains over them for an extra layer of protection against heat loss.
