10 tips for insulating your home without renovation work!

Dreaming of a snug retreat in winter and a cool interior in summer, but not sure where to start when it comes to improving your home's insulation without major building work?

Good news: there are simple, quick and effective solutions to boost your home insulation without knocking down a single wall!

Hang thermal curtains: your first shield against the cold

Windows are often the main culprits when it comes to heat loss. One very simple solution is to fit thermal curtains, specially designed to keep the cold out in winter and the heat out in summer.

Tip: choose thick curtains with a thermal lining and make sure you close them properly at night to get the most out of them.

Fit draught seals on windows and doors

Do you feel a draught every time you walk past a window? It's time to fit self-adhesive draught seals! These little foam or rubber strips take just minutes to apply and stop cold air seeping in.

Bonus: don't forget draught excluders for the bottom of doors, to keep icy air from slipping underneath!

Apply insulating film to your windows

If you don't have double glazing, an affordable alternative is to apply insulating film to your panes. This plastic film is easily fitted with a hairdryer and creates an insulating barrier against the cold.

Advantages: inexpensive, easy to fit and an immediate improvement in thermal comfort.

Make the most of rugs and carpets: no more freezing floors!

A cold floor can turn your home into a fridge. The answer? Rugs and carpets, which add a layer of thermal insulation while making the room feel warmer and cosier.

Styling tip: layer several rugs for even more insulation and a bang-on-trend boho look!

As well as creating a cocooning feel, rugs help improve home insulation at very little cost.

Furnish cleverly: shelves against the cold

Did you know that furniture can insulate too? Placing a bookcase full of books against an external wall helps reduce heat loss. Solid furniture such as wardrobes or sofas acts as a natural barrier against the cold.

Worth knowing: this tip works particularly well on walls in direct contact with the outside.

Use reflector panels behind your radiators

If your radiators sit against an external wall, much of the heat they produce is lost. Heat reflector panels (often aluminium) send the heat back into the room instead of letting it escape through the wall.

Extremely easy to fit: simply stick the panels behind your radiators and you're done!

Use thermal blankets on beds and sofas

Why heat a whole room when you can simply wrap yourself in a super-warm thermal blanket? These special blankets trap body heat and are perfect for chilly evenings.

Little extra: some heated blankets run on electricity for maximum comfort in winter!

Close the shutters as soon as night falls

A simple but effective habit: close your shutters as soon as the sun goes down. This limits heat loss overnight and keeps the warmth inside.

If you don't have shutters, invest in thick blinds or blackout panels for a similar effect.

Use your cooker and appliances wisely

Every time you cook, boil water or use the oven, you generate heat. Let that heat spread through the room by avoiding airing the place straight after cooking.

Clever idea: once you've switched off the oven, leave the door open to enjoy the residual heat for free!

Consider a dehumidifier if your home is damp

Damp air feels colder, even at the same temperature. A dehumidifier reduces humidity and improves thermal comfort.

A drier home is a home that's easier to heat!As you can see, there's no need to embark on huge building works to improve your home's insulation! With these 10 simple tips, you can easily gain in thermal comfort while cutting your energy consumption.

How about you: what are your favourite ways to insulate your home without renovation work?

You can also read the advice from ADEME

Take a look at our article on how to design your entrance hall: tips for a warm welcome

Here are the tips from this page gathered in one table: the cold spot each one tackles, and what fitting it takes.

Tip	Cold spot it tackles	What fitting it takes
Thermal curtains	Heat lost through windows	Thick lining, drawn at nightfall
Adhesive seals and door draught excluders	Draughts around windows and doors	Foam or rubber, fitted in minutes
Insulating window film	Panes without double glazing	Fixed with a hairdryer, low cost
Rugs and carpets	Cold floors	Layer them, insulation on a small budget
Bookcase and solid furniture	Walls in direct contact with the outside	A bookcase full of books set against the wall
Radiator reflector panels	Heat lost behind radiators	Stuck to the wall, little use on an inside wall
Shutters, thick blinds or blackout panels	Heat lost overnight	Closed as the sun sets, costs nothing
Dehumidifier	Damp air, feeling of cold	A drier home is easier to heat

Frequently asked questions

Do these tips replace proper insulation work? No, and it is better to say so straight away. They bring comfort immediately, for a few euros and without touching a single wall, but they change nothing about the building itself. Treat them as a complement, and keep the ADEME guidance to hand if you ever consider real work.

Does window insulating film really work without double glazing? That is exactly the case where it earns its keep. The film goes onto the glass with a hairdryer, in a few minutes, and creates an extra barrier against the cold. For the price, it is one of the best-value options on this list.

Why does my home feel cold even with the heating on? Look at the damp first. Humid air feels colder, even when the thermostat shows the same temperature. A dehumidifier dries the air out and makes the home easier to heat.

When should I close the shutters? As soon as the sun goes down, without waiting until bedtime. It limits heat loss through the night, and it costs nothing at all. With no shutters, thick blinds or blackout panels do the same job, and well-drawn thermal curtains finish it off.

Does a bookcase against a wall really insulate? A solid piece of furniture packed with books adds thickness between the room and the wall, and cuts heat loss. The effect shows most on walls in direct contact with the outside. A wardrobe or a sofa in the right spot does the same job.

Where do heat reflector panels go? Behind radiators fitted against an outside wall, where the heat disappears into the wall instead of coming back into the room. The aluminium panels stick straight on and take a few minutes to fit. On a radiator against an internal wall, the gain is far smaller.