Eco-friendly habits: can resource sobriety avert a major construction project?
Hi, it’s Claude.
Yes, energy-conscious habits can prevent or reduce some work, but they’re no substitute for necessary renovations when a home loses a lot of heat.
Before considering a major project, a few energy-saving habits can help you better understand your energy use and limit waste. They can make a real difference, provided you adapt them to your home and don’t confuse saving energy with repairing a deteriorating building.
Good habits to reduce your energy use
- Close the shutters and curtains at night, without covering the radiators.
- Fit seals around doors and install a door sweep if air is getting through.
- Turn down the heating in rooms you don’t use much and set it to match your schedule.
- Use less hot water: take shorter showers, turn off the tap while lathering, and fit a water-saving aerator if needed.
- Switch off appliances when they’re not in use and choose eco programs for laundry and dishes.
These habits are a good place to start: you can also explore ways to limit energy waste and understand why using less remains an important way to make a difference.
Energy conservation or renovation: which is right for your home?
Energy conservation focuses on how you use energy: heating only the rooms you occupy, avoiding appliances on standby, or putting a lid on a saucepan. Renovation and insulation, on the other hand, address the characteristics of the building, such as cold walls, draughty windows, or a poorly insulated roof.
The two approaches complement each other. If your home is generally comfortable and your bills seem high compared with your habits, a few adjustments may already help. If you feel persistent draughts or some rooms stay cold despite appropriate heating, everyday habits probably won’t be enough.
| Situation observed | First thing to try | When to consider renovation work |
|---|---|---|
| Heating is on in unoccupied rooms | Adjust the schedule and close the doors | Not necessarily needed |
| A draught is coming in under a door | Fit a seal or door sweep | If several openings are still draughty |
| The walls are cold and the home struggles to retain heat | Check how you use energy and the ventilation | Have the insulation and renovation needs assessed |
| The bill remains high despite careful energy use | Compare energy consumption and appliances | Discuss renovation work with a professional |
Heating accounts for a significant share of the energy used in a household. A 2019 Ademe report estimated that it made up 27.6% on average: this older figure gives a rough idea, but the breakdown varies depending on the home, the climate, and the equipment.
Never block regulated ventilation grilles. They help renew the air and ensure the ventilation system works properly; blocking them can create other problems without sustainably improving energy efficiency.
A simple example: take action before deciding
In an apartment where the living room is comfortable but the entrance stays cold, installing a door sweep and closing off unheated rooms can improve comfort without major work. If, despite these adjustments, the windows let in air and several walls remain cold, an assessment can help identify which work is genuinely worthwhile.
Energy-saving habits also have educational value: they make energy use more visible and let you try gradual changes. In 2022, during an energy-saving appeal launched by RTE, the collective effort helped reduce demand by around 800 MW at a peak-demand moment. This episode shows that collective action can make a difference, but it doesn’t prove that it can replace renovations in the least energy-efficient homes.
Three steps to find out whether major work is needed
- Observe for two to four weeks. Note the temperatures, heating schedule, uncomfortable rooms, and signs of draughts. Air out the rooms briefly with the heating off, without blocking the air inlets.
- Try simple measures. Set the heating schedule, close the shutters in the evening, reduce standby power use, and check visible seals. Then compare how comfortable the home feels and, if you have access to them, your energy readings.
- Have the building assessed if the problem persists. A professional can identify the most significant heat losses and help you avoid poorly targeted work. The right renovation isn’t necessarily the most extensive one: it depends on the home’s condition and the needs identified.
When it comes to hot water, taking shorter showers and not leaving the tap running also helps reduce energy use, since heating water requires electricity or gas. Here again, habits are helpful, but they won’t fix faulty equipment or a leak.
Energy-saving habits and renovations: avoid false savings
The mistake would be to think that an everyday habit can make up for poor insulation. Energy conservation reduces avoidable energy use; renovation work can address structural heat losses. Lasting efficiency often comes from combining the two, with work tailored to the home rather than renovations decided on blindly.
Start with simple, safe actions, then seek advice if the home is still uncomfortable. This approach limits unnecessary spending and helps reduce environmental impact without promising that a small change will be enough for every home.
Frequently asked questions about energy-saving habits and renovation
Can energy-saving habits replace insulation?
No. They reduce energy use linked to how you use your home, but they can’t fix insufficient insulation or building defects. However, they can improve comfort and help you better target renovation work.
Which measures should you try before starting renovation work?
You can set the heating schedule, close the shutters at night, fit seals on doors, and reduce standby power use. Never block ventilation grilles.
How can you tell whether your home needs renovating?
Cold rooms despite appropriate heating, persistent draughts, or high energy use that can’t be explained by your habits may warrant having a professional assess your home.
Does energy conservation really make a difference?
Yes, when it sustainably reduces unnecessary energy use and is part of a collective effort. However, its impact depends on the home, the equipment, and each household’s circumstances.
Thanks for reading! If this topic resonates with you, I’d love it if you left me a comment at the bottom of the article. — Claude
