As energy costs continue to worry households, a surprisingly simple tip is gaining attention: close your curtains at the right time, and you could keep more heat inside your home.
It sounds almost too easy, but experts say timing matters. Around mid-March, a small shift in your evening routine—closing curtains at roughly 7:45pm—can help reduce heat loss and lower how much you rely on heating.
Why Timing Your Curtains Actually Works
As the sun sets, outdoor temperatures drop quickly. Any warmth built up inside your home during the day starts escaping—especially through windows, which are one of the biggest sources of heat loss.
Closing curtains at the right moment creates an extra barrier. It slows down how quickly heat escapes, helping rooms stay warmer for longer without increasing your heating usage.
The key is timing. Close them too early, and you block out useful sunlight. Too late, and much of the heat has already been lost.
Why 7:45pm Matters in Spring
From mid-March onward, the angle of the sun changes. Daylight lasts longer, but the sun’s warmth becomes less direct by evening. That means homes don’t retain heat as efficiently once the sun goes down.
Around 7:45pm is typically when temperatures begin to drop more noticeably. Closing curtains at this time helps trap the remaining warmth inside before the cooling effect kicks in.
It’s not an exact science for every home, but this window is a practical guideline that works for most households during the spring transition.
How Much Difference Can Curtains Really Make?
It might seem like a small step, but curtains can play a bigger role than many people expect. Windows are responsible for a significant portion of heat loss in most homes.
By adding an extra layer of insulation, curtains can help reduce that loss. Even modest improvements—like cutting heat escape by a few percent—can lead to noticeable savings over time, especially when energy prices are high. The impact is even stronger in homes with older windows or less insulation.
Small Changes That Add Up Over Time
Closing curtains is just one piece of a bigger picture. When combined with other small habits, the savings can become more meaningful.
Lowering your thermostat slightly, switching off unused appliances, and using energy-efficient settings on appliances all contribute to reducing overall consumption. Individually, they seem minor—but together, they can make a real difference to monthly bills.
The key is consistency. Simple habits repeated daily often outperform expensive upgrades done once.
Do You Need Special Thermal Curtains?
Thermal or blackout curtains can improve insulation because they’re designed with thicker materials and linings that trap heat more effectively.
However, you don’t need to invest in new curtains to benefit from this tip. Even standard curtains can help if they are closed properly and cover the window fully without gaps.
If you’re looking to maximize results, upgrading to thermal curtains is worth considering—but timing remains the most important factor.
What to Watch Out For
While this habit is helpful, it’s not a complete solution. Heat loss also depends on insulation, ventilation, and the overall condition of your home.
It’s also important not to keep curtains closed all day. Daylight can naturally warm your home, so opening curtains during sunny hours helps balance things out. Think of this as a supporting habit—not a replacement for proper insulation or efficient heating systems.
What Happens Next as Energy Costs Stay High
With energy prices still a concern for many households, low-cost solutions like this are becoming more popular. People are looking for practical, everyday ways to reduce usage without major expenses.
Experts expect more attention on simple behavioral changes—like timing heating, using appliances wisely, and improving insulation habits—as part of long-term energy savings strategies.
