Get Your Home Ready for Autumn: Cut Energy Bills Before Winter
By late September, evenings get cooler across Europe. Before the heating stays on full-time, a handful of low-cost steps cut consumption substantially. ADEME estimates that the heating share of a French household bill is around 60% of total energy use — so even a 10% reduction means real money. With electricity at €0.2516/kWh on the Tarif Bleu (2024) and gas tariffs deregulated since June 2023, the autumn checklist below is the highest-payback hour you'll spend on energy this year.
Check Your Insulation
Worn window seals or a poorly fitted door let cold air sneak in. Adding adhesive strips or a simple door draft stopper costs just a few euros and can reduce heat loss by 10%. It’s a small investment that pays back from the very first heating month.
Maintain Your Heating System
A bled radiator or a serviced boiler uses less energy and heats more efficiently. In several European countries, annual maintenance is mandatory, but beyond that, it’s simply the best way to avoid breakdowns and extend the system’s lifespan.
Set the Right Temperature
Lowering your thermostat by just one degree saves around 7% of energy. During the day, 19°C is enough for living areas. At night or when away, 17°C prevents heating an empty home.
Make Use of Natural Heat
Opening shutters and curtains during the day lets in free heat from the sun, even in autumn. Closing them as soon as night falls helps keep that warmth inside for longer.
Conclusion: Getting ready for autumn doesn't require major renovations. With a few checks (insulation strips, boiler service, thermostat, Linky audit) and small daily habits (shutters, 19 °C, layered clothing), you can cut your energy bill 10–15% and stay comfortable. None of this requires touching MaPrimeRénov' or the Parcours Accompagné — but if you're considering a bigger renovation later, the audit insights tell you where to focus. For deeper tips, see our winter home prep guide.
Frequently asked questions
Is annual boiler service really mandatory in France?
Yes, for any combustion boiler (gas, oil, wood, pellet). The arrêté du 15 septembre 2009 requires an annual entretien by a qualified professional. Costs €100–€150 for a Qualigaz technician. The certificate must be kept for 2 years; insurance can deny claims after a fire or CO incident if the entretien is missing. Heat pumps and electric boilers don't have the same legal obligation but should still be serviced every 2 years.
What temperature should I actually set for my heating?
ADEME's recommendation: 19 °C in living areas during the day, 17 °C in bedrooms or when away. Each 1 °C drop saves ~7% on heating energy. A programmable or smart thermostat (Netatmo, Tado, Heatzy — €70–€200) automates the day/night/away schedule and pays back in 6–18 months for most French homes.
Are draught strips and door sweeps actually worth it?
Yes — they're the highest-payback intervention in absolute terms. €5–€20 of self-adhesive seals on window and door frames cuts air infiltration significantly; ADEME modelling suggests 5–10% heating savings in poorly-sealed homes. Pair with a draught snake (boudin de porte, €5–€15) under exterior doors. Total spend €30 on a typical 70 m² flat, payback in the first month.
Do shutters really keep heat in at night?
Yes. Closed shutters add an air gap between the window and outside, cutting overnight heat loss by 5–15% depending on shutter type. The effect is biggest with classic French wooden persiennes; metal roller shutters are also effective. Combined with thick curtains, the total reduction can reach 25% on the window's nighttime U-value.
What's the simplest insulation upgrade that qualifies for MaPrimeRénov' in 2026?
Loft insulation (isolation des combles perdus) — laminé soufflé or laine de verre to reach R ≥ 7 m²·K/W. Often the cheapest step (€20–€30/m² installed before subsidy), and MaPrimeRénov' Geste par geste covers up to €25/m² for very modest households. Most homes recover the out-of-pocket spend in 3–5 winters.
About the author:
Julien Maurice is the founder of AdminLanding and writes the editorial guides on GreenDailyFix covering French renovation aid, energy policy, and the administrative side of the energy transition. Contact: [email protected]
Related posts
The Winter Home Problem Nobody Talks About: Humidity, Mould, and the Air You’re Breathing
Every winter, we seal our homes to keep warmth in — and trap something else inside. Humidity rises, air stagnates, and invisible pollutants accumulate. In 2026, indoor air quality is becoming one of the most overlooked health issues in European homes.
From Optimisation to Protection: Why European Homes Are Redefining Energy Strategy in 2026
For years, energy advice focused on optimisation: better efficiency, higher performance, maximum savings. In 2026, European households are quietly changing priorities. The new goal is not perfection - it is protection.
The Illusion of Energy Stability: Why Europe's 2026 Calm Is Costing Households More Than They Think
For the first time in years, Europe entered winter without an energy shock. No dramatic price surge. No emergency headlines. And yet, something more dangerous is happening quietly: households are mistaking stability for safety.
Europe’s Winter Wake-Up Call: The Hidden Energy Decisions Millions of Homes Will Regret Delaying in 2026
This winter, Europe didn’t freeze — but something else happened quietly. Millions of households realized that energy problems no longer arrive as shocks. They arrive as slow, expensive regrets. Winter 2026 isn’t about panic. It’s about the cost of waiting.