How To Get Your Sash Windows & Casement Windows Sparkling In The Sunshine

brown sash window frameLet the light in, by cleaning your timber sash windows

We all love days when rays of sunshine stream through the windows – but if your sash windows are in need of a clean, there’s nothing like a sunny day to show you up! So, when it comes to cleaning the glazing – to smarten up your home and let more light in – what’s the best way to do it?

We’ve put together a few tips to help you get your sash or casement windows clean – efficiently and cost-effectively.

Top tip: If you can take down blinds and curtains before you start, it’ll be much easier to clean the inside of your windows. Look at it as a good opportunity to get them washed or dry-cleaned, too!

When should I wash my sash windows?

The sunshine might have reminded you that your glass needed a touch of elbow grease, but resist the temptation to wash them when it’s sunny, as the warmth dries the glass too quickly, leaving them streaky. Instead, pick a cloudy day when windows dry more slowly, and streaks are less likely to form.

Top tip: Dust and vacuum the frames, sashes, sills and brush pile of the Ventrolla Perimeter Sealing System (you can read more about VPSS here) before you start, so you don’t end up wiping the dust across your windows.

What should I use?

If you wash your windows regularly, water and a microfibre cloth will do the job. A touch of regular washing-up liquid is also a great choice – there’s no need to buy specialist solutions. Or just like your grandmother used, vinegar or lemon juice can get the job done efficiently.

Top tip: Vinegar is still popular for window cleaning today as it’s good value, non-toxic, anti-bacterial and environmentally friendly, too.

How to do it:

Add two tablespoons of distilled vinegar to a small bucket of warm water – and use a soft lint-free cloth to clean the glass. For stubborn dirt, you can spray vinegar directly on it and leave it to work its magic for a few moments – the smell is quite pungent but don’t worry, it will fade.

How do I get the best finish?

Leaving windows to dry on a dull day will help prevent streaks, but you might want to buff them up to get them really sparkling and clean. If you want to get the soapy water off quicker, try a squeegee. Use a ‘S shape’ motion from top to bottom – but make sure you wipe the squeegee on a clean cloth now and again.

Top Tip: Make sure you use a lint-free cloth so you don’t leave fibres all over your windows. Microfibre or a leather chamois is a good option, and you can wash and dry these for use time and again. However, a scrunched-up newspaper is the bargain option – you may have some lying around and it can be recycled afterwards, too.

If you’d like more helpful tips, the experts over at Good Housekeeping have even more advice on how to make your windows shine.

brown sash window
Buff your sash windows & make them shine!

If your sash windows or casement windows are in need of more than a clean, we can help! Our renovation and bespoke joinery services will breathe new life into your home, increasing value and curb appeal.  You can talk to a member of our team today by making an enquiry – we look forward to hearing from you.


The Art of Washing Sash Windows: A Step-by-Step Guide


Sash windows are a classic feature of many homes, exuding charm and elegance. To maintain their beauty and functionality, regular cleaning is essential. In this guide, we’ll explore the steps involved in washing sash windows, ensuring they stay crystal clear and free of grime.

Why Clean Sash Windows?

1. Aesthetic Appeal

Sash windows contribute significantly to the overall aesthetic of a property. Clean windows enhance the visual appeal of your home, creating a welcoming atmosphere.

2. Prolonged Lifespan

Regular cleaning helps prevent dirt and debris buildup, which can lead to deterioration over time. This, in turn, can extend the lifespan of your sash windows.

3. Improved Functionality

Clean windows operate smoothly. Removing dirt and grime from the tracks and sashes ensures that your windows open and close effortlessly.

cleaning sash windows

Materials Needed

Before embarking on the window-cleaning journey, gather the following materials:

1. Cleaning Solution

Choose a mild, non-abrasive cleaning solution. A mixture of water and a few drops of dish soap or a vinegar-based solution works well.

2. Soft Brushes and Cloths

Opt for soft brushes and lint-free cloths to avoid scratching the glass or damaging the window frame.

3. Squeegee

A good-quality squeegee helps achieve streak-free results. Make sure it’s the right size for your window panes.

4. Bucket

A bucket is essential for holding your cleaning solution and for rinsing your brushes and cloths.

5. Ladder

If your sash windows are on the upper floors, a sturdy ladder is necessary for safe access.

Step-by-Step Cleaning Guide

1. Preparation

Before diving into the cleaning process, remove any dust or loose debris from the window surfaces using a soft brush.

2. Cleaning Solution Application

Prepare your cleaning solution in a bucket. Dip a soft cloth or sponge into the solution and gently scrub the window frame and sashes.

Attention to Detail

Pay special attention to corners and crevices where dirt tends to accumulate. A toothbrush can be useful for reaching tight spots.

3. Glass Cleaning

Tackling the Panes

Wet the glass with the cleaning solution. Using the squeegee, starting from the top, make even, downward strokes. Wipe the squeegee blade after each pass.

Dealing with Stubborn Stains

For stubborn stains, a mixture of vinegar and water (or a commercial glass cleaner) applied with a soft cloth can be effective. Avoid abrasive scrubbers to prevent scratches.

4. Rinsing

Ensuring Residue-Free Windows

Rinse the windows thoroughly with clean water to remove any leftover cleaning solution. This step is crucial for achieving a streak-free finish.

5. Drying

 Streak-Free Brilliance

Dry the glass with a clean, dry lint-free cloth. Buff the glass in circular motions to ensure a streak-free shine.

6. Final Touches

Attention to Sash Tracks

Don’t forget to clean the sash tracks. Use a small brush or vacuum cleaner attachment to remove dirt and debris, ensuring smooth window operation.

Step-By-Step Guide to Washing Sash Windows

Washing sash windows is a task that, when done with care and attention, enhances both the appearance and functionality of your home. By following these step-by-step guidelines, you’ll be able to enjoy the timeless beauty of your sash windows for years to come. Regular maintenance not only preserves their aesthetic appeal but also contributes to the overall well-being of your property.