It cannot be stressed enough: a bright room feels better. When the windows are clean, light enters unfiltered, your gaze extends into the distance, and your mood improves. Yet, keeping your windows truly clean remains a delicate art. Streaks, dull reflections, forgotten droplets… It’s always when the sun hits at an angle that the truth is revealed.

When the sun shines, it reveals everything

One morning in Pau, the mist gently dissipates, a warm cup still in hand, and then, a revelation: streaks all over the bay window. Zigzags, halos, a kind of veil floating between you and the world. Don’t panic: there are simple, inexpensive, almost satisfying techniques to apply.

But before reaching for the window cleaner, a question deserves to be asked: if the windows never quite shine, could the problem not be with the frame? With tired joinery that retains moisture or attracts dust? Perhaps. But one thing at a time.

Clever tricks to say goodbye to streaks

What you use matters (a lot)

We often mistakenly think that powerful products are needed to tame glass. In reality, window cleaning equipment requires very little:

• A simple spray bottle (or a well-rinsed old bottle)

• A good dose of white vinegar (1/3) to 2/3 lukewarm water

• A dry microfiber cloth (no need for Amazon, a supermarket will suffice)

• A window squeegee with a still-sharp edge

• Optional: Meudon white for extra shine

No more is needed. Neither overpriced window cleaning products nor useless gadgets. And yet, the result is there.

💡 This guide from 60 Millions de consommateurs confirms it: vinegar often beats major brands.

The order of actions changes everything

First, spray without soaking the window. Let it sit for ten seconds (yes, you’re allowed to breathe between passes). Then, wipe the microfiber in one direction, always the same. From top to bottom. Then, the squeegee, edge to edge, with a quick wipe of a dry cloth between each glide.

And for detail fanatics (I shamelessly count myself among them): a dab of Meudon white on a soft cotton pad, at the end. The effect is immediate. The window is no longer just clean: it captures light like a brand new surface.

Clean windows, blurry frames?

What if the frame is no longer keeping up?

There comes a time when you clean, again and again… without achieving a satisfactory result. You think about the product, the cloth, the weather. Rarely the frame. Yet, an old, poorly insulated window can transform light into a pale reflection. Moisture remains, corners blacken, glass fogs up quickly.

Replacing bay windows is not just about thermal renovation. It’s also a way to restore clarity to everyday life. A bit like when you clean your glasses and think: ah, there it is.

💡 ADEME recommends considering joinery during a comprehensive renovation project.

Extend the clean effect without exhausting yourself

One might think that windows need to be cleaned every week. This is false. Efficiency depends more on the method and the environment than on frequency. A few actions can keep glass surfaces clean longer:

• Use demineralized water if the water is hard

• Avoid cleaning in direct sunlight

• Consider the tracks, often neglected

• Buff dry with a microfiber cloth

• Clean the handles (yes, really)

• Schedule window washing once a month in the city, every two months in the countryside

💡 Discover INRS recommendations on the safe use of household cleaning products.

What I learned by looking at the light

Successful window cleaning is not just about technique. There’s a form of satisfaction, almost meditative, in this precise and slow gesture. You polish, you wait, you contemplate. And when you step back… you rediscover the view. The real one. The one that is not veiled.

But sometimes, a clean window is not enough. The problem lies elsewhere: with the window itself, the frame, the choice of materials. These small, invisible things that change everything.

Next time you wipe, take a look at the frame. If air is passing through, if the paint is flaking, if the glass seems “dulled,” there might be a message there. But in the meantime, a well-held squeegee, a drop of vinegar, and a little soft light already work wonders.