Last updated: June 4, 2026

How to open and clean windows: Tips from the experts

One of the biggest advantages to modern windows is that they are incredibly easy to clean. Unlike older windows, which often have sticking issues, slam shut, or require outdoor access, many newer replacement windows are designed with you, the homeowner, in miind.

Knowing how to open and clean a double-hung window can keep your home looking beautiful and ensure your windows are performing well for years to come.

In this guide, we'll walk through how to easily open your windows and clean them.

Why modern windows are easier to maintain

Today's windows are built with features that make everyday use a breeze. Most standard double-hung windows today feature:

• Tilt-in sashes that make interior cleaning easy
• Smooth gliding movements
• Energy efficiency
• Low-maintenance frames
• Easy-to-use locks and safety features

These features are especially prominent with vinyl windows, which are typically easier to maintain than wood or aluminum options.

How to open double-hung windows

Double-hung windows are the most common type of replacement windows. These windows feature two sashes that can move independently of each other.

Here’s how to open a double-hung window to clean it:

1. Locate the locks, which are often on either side of the top of the bottom sash
2. Unlock the window
3. Lift the bottom sash slowly and evenly, stopping when it reaches your desired height

You may also choose to open the top sash of the window by unlocking it and gently pulling down on the top sash.

Common reasons a window may not open easily

If you're having trouble opening a window, there are a few things that could be happening:

• The window locks have not been fully unlocked
• There is dirt or debris in the track
• Paint or caulk buildup is blocking the track
• The windows have been improperly installed
• The window balances are malfunctioning

Do not try to force a stuck window open. Call window professionals to help diagnose the issue.

How to tilt in windows for cleaning

Most double-hung windows today feature tilt-in sashes that make cleaning them extremely easy.

To tilt in a sash:

1. Unlock the window locks
2. Raise the bottom sash a few inches
3. Locate the tilt latches, which are near the top of the sash
4. Slide or press both tilt latches at the same time
5. Gently pull the sash inward toward you until it is fully extended

Repeat the same with the top sash if your model allows for it.

The best way to clean windows

To clean your windows, you'll need:

• Mild dish soap and water
• A microfiber cloth
• Non-abrasive glass cleaner
• A soft brush or a vacuum with an attachment
• Squeegee (or a dry towel)

Do not use abrasive sponges, razor blades, or harsh chemicals on your windows. This could lead to damage that renders your windows useless.

4 Steps to Cleaning Your Window

Follow these four easy steps to get clean windows:

1. Remove dust and dirt

The first step in cleaning a window to to use either a brush or a vacuum attachment to get rid of dust and debris. Open the window and tilt in the sash so you can get the corners, tackling tracks, sills, corners, and screens.

2. Clean the glass

Spray the glass cleaner (or you can use mild dish soap and water) onto the glass. Wipe it with a microfiber cloth. If you want streak-free results, wipe one side of the glass in a vertical pattern, and wipe the other in a horizontal pattern. This makes it much easier for you to spot any potential missed areas.

3. Clean frames and tracks

Using your soap-and-water mixture, wipe down the frames and tracks surrounding the window's glass. Make sure you clean out any drainage holes and get buildup out of the tracks.

Use your squeegee to dry the glass, and use a towel to remove excess moisture.

4. Replace and lock the window

After drying the window and glass, tilt the sash back into place, making sure it clicks and is secure. Lock the window, and you're done!

How often should you clean windows

Wondering how often you should clean your windows? It depends on where you live. We suggest:

• Standard maintenance: Twice a year for proper upkeep
• High-pollen areas: Once a quarter to get pollen off your windows
• Coastal or high-construction areas: Up to once a month

During your cleanings, take the opportunity to inspect all window features and mechanisms, including locks, weatherstripping, caulking, and screens.

Window cleaning mistakes to avoid

Your windows are a sizable investment! Avoid doing the following to protect them:

• Don't use a pressure washer on windows, because you risk breaking the glass and other components
• Don't clean the glass when it's in direct sunlight, because the cleaner can dry too quickly and leave streaks
• Don't use ammonia-based cleaners often, as they can create streaks or, worse, damage delicate surfactes
• Don't slam your tilted sashes shut or allow them to slam open

Caring for your windows properly helps to extend their lives.

Low-maintenance replacement windows are designed to stay cleaner longer.