How to Wash Exterior Windows in the UK

We’ve all had that moment – you glance out the window on a sunny morning and suddenly notice the smudges, streaks, and bird art that have taken over your panes.

Washing outside windows isn’t the most glamorous task, but when it’s done right, it’s deeply satisfying. Clean glass lets in more light, lifts your mood, and improves the look of your home from the kerbside.

Whether you live in a London flat, a semi in Kent, or a countryside cottage, this guide gives you a practical, down-to-earth approach to cleaning exterior windows – with helpful tools and UK-specific tips for getting the job done right the first time.

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Why Exterior Window Washing Matters

Unlike interior glass, washing outdoor windows involves tackling layers of grime from weather, pollution, insects, and good old-fashioned rainwater streaks. Over time, mineral deposits and dirt settle into corners and frames.

If you’ve ever wondered how to clean outside windows without leaving your arms aching or missing half the smears, you’re in the right place.

Choose the Right Day to Wash

First things first: timing matters. You might assume a sunny day is best, but don’t be fooled. If you wash windows in direct sunlight, the solution dries too quickly and leaves streaks. A mild, overcast day is ideal – cloud cover gives you just enough working time for that streak-free finish.

Bonus? You won’t be squinting through glare, and your cleaning solution won’t evaporate mid-swipe.

How to Wash Exterior Windows (Step-by-Step)

Here’s a simple, reliable method for washing outside windows without fuss.

Step 1: Rinse Off Loose Dirt

Start by rinsing the windows with a hose, if you have one. This removes dust, cobwebs, pollen, and bird droppings that could scratch your glass later.

No hose? No worries. A bucket of water and a sponge will do fine – just start from the top and work your way down.

Step 2: Prepare Your Cleaning Solution

Wondering what to wash windows with outside? Keep it simple. A mix of warm water and white vinegar works wonders. If you prefer dish soap, go for a gentle one like Ecover or Method.

Simple DIY solution:

• 2 litres of warm water
• 200ml white vinegar
• Optional: a drop of dish soap

Mix it in a bucket and you’re good to go. If you’re using a commercial window cleaner, look for one with anti-static properties to help repel dust after you’re done.

Step 3: Scrub the Glass

Dip your sponge or scrubber into the solution and scrub the window, starting from the top. Use circular motions for stubborn marks, but don’t go too hard—modern double glazing is sturdy, but you want to avoid scratching.

If you’re tackling high windows or need something with reach, a long-handled tool makes a huge difference.

Recommended Tool for Scrubbing the Glass: Mitclear Window Cleaner with Long Handle

Mitclear Window Cleaner with Long Handle is a two-in-one scrubber and squeegee with a telescopic handle. It’s lightweight, adjustable, and ideal for British weather (AKA slightly unpredictable).

Why it’s great:

• Covers upper-floor windows with ease
• Durable silicone edge for smooth glide
• Microfibre head lifts grime without smears

Step 4: Clean the Frames and Sills

This bit is often skipped, but makes a big visual difference. Use a separate cloth to clean the window frames and sill areas with the same solution. If they’re especially dirty, add a touch more vinegar or use a dedicated outdoor cleaner.

Pro tip: For moss or algae on older windows, a soft-bristled brush helps break it down without damaging paintwork.

Step 5: Squeegee Away Excess

A good squeegee is the secret to cleaning outside windows like the pros. After scrubbing, use long, steady strokes from top to bottom. Wipe the blade with a cloth between swipes to avoid smearing.

Recommended Tool for Squeegeeing: MR.SIGA Professional Window Cleaning Combo

The MR.SIGA Professional Window Cleaning Combo includes a squeegee and microfibre scrubber – perfect for exterior window washing, especially on patios and conservatories.

Why it’s great:

• High-quality rubber blade for smooth gliding
• Comfortable grip even when wet
• Durable materials for regular seasonal cleaning

Step 6: Dry and Detail

Once you’ve removed the bulk of water, grab a clean microfibre cloth to buff out the edges and corners. This final pass removes streaks and leaves the glass crystal clear.

What to use to clean windows outside at this stage? A dry, lint-free cloth is perfect – but if you fancy going full pro, consider using a handheld window vacuum.

How to Clean Outside Windows from Inside (Upper Floors Made Easy)

If your windows don’t open wide or you live in a flat, how to clean outside windows from inside becomes a big question. Fortunately, you’ve got a few options.

Option 1: Tilt-and-Turn Windows

If your windows open inward (hello, tilt-and-turn design), you’re in luck. Simply follow the same steps from inside. Just make sure to place a towel on the sill to catch any drips.

Option 2: Magnetic Window Cleaner

This genius tool lets you scrub both sides of the window at once using magnets and a handle system.

Recommended Magnetic Window Cleaner Tool: Tyroler Bright Tools Magnetic Window Cleaner

Tyroler Bright Tools Magnetic Window Cleaner is designed specifically for double-glazed UK windows.

Why it’s great:

• Cleans both the interior and exterior simultaneously
• Adjustable for different window thicknesses
• Saves time and ladder drama

Option 3: Telescopic Pole Systems

For hard-to-reach windows that don’t open fully, an adjustable pole with a cleaner head is your safest bet.

Recommended Telescopic Pole Tool: Beldray Telescopic Window Cleaner Kit

The Beldray Telescopic Window Cleaner Kit includes an extension pole, squeegee head, and microfibre cleaner – great for flats and bungalows alike.

Why it’s great:

• Reaches up to 130cm without a ladder
• Lightweight and easy to store
• Ideal for older properties with high glazing

Quick Tips on How to Wash Exterior Windows

If you’re short on time or tackling multiple panes, here are your go-to tips:

• Clean windows on an overcast day to avoid streaks.
• Always rinse first to remove debris.
• Use overlapping squeegee strokes to prevent lines.
• Dry corners and edges with a clean cloth after each window.
• Clean exterior windows at least twice a year – spring and early autumn work best.

What to Use to Wash Windows Outside: Our Top Picks

Here’s a quick summary of recommended products for washing exterior windows, all available in the UK:

Product	Type	Why It’s Great	Link
Mitclear Window Cleaner	Long Handle Tool	Reach & scrub outdoor windows easily	Check Best Price
MR.SIGA Cleaning Combo	Squeegee + Scrubber	Streak-free finish with ergonomic grip	Check Best Price
Tyroler Magnetic Cleaner	Magnetic Tool	Clean both sides from indoors	Check Best Price
Beldray Kit	Telescopic Pole	Safe for high windows, ladder-free	Check Best Price

For even more gear, check out our full roundup of the best window cleaning tools -curated for UK homes and weather.

Exterior Window Washing for Different Surfaces

How to wash exterior windows also depends on your frame type. Here’s how to adapt your method:

• uPVC frames: Avoid abrasive cloths and use vinegar-free soap to prevent clouding.
• Wooden frames: Wipe gently with mild soap and rinse thoroughly. Seal any exposed timber.
• Aluminium or metal: Use a pH-neutral cleaner and rinse well to avoid corrosion.

For all types, remember to test any cleaner in a small corner first.

Why Trust Us?

We’re a UK-based professional cleaning team with years of hands-on experience in homes of all shapes and sizes. From deep cleans in busy family kitchens to quick refreshes in rental flats, we’ve used more cleaning products and household tools than we can count. Some are brilliant. Others don’t live up to the hype.

This blog was created to share what actually works. Every recommendation is based on practical use, customer feedback, and what holds up in real homes. If a product doesn’t save time, improve results, or make life easier, it doesn’t make the cut.

We focus on tools that perform under pressure, not just ones that look good on the shelf. We only bring you the best, and that’s a promise 🙂

Final Thoughts on How to Wash Exterior Windows

Washing outdoor windows doesn’t have to feel like a dreaded chore or an expensive appointment. With the right timing, a few reliable tools, and a little elbow grease, you can get a streak-free shine without spending your weekend dangling from a ladder.

Plus, clean windows let in more natural light, boost your home’s kerb appeal, and genuinely make your space feel fresher, inside and out. Whether you’re figuring out how to clean outside windows from inside or investing in tools that make washing exterior windows easier, this guide is your go-to for achieving sparkling results without drama.