What is the best solution to wash outside windows? For most Irish homes, the best way to wash outside windows is to use a simple eco-friendly mix of warm water, a splash of white vinegar, and a drop of mild washing-up liquid, applied with a soft applicator and finished with a good squeegee for a streak-free finish. This kind of solution cuts through traffic film and coastal residue while staying kind to your frames, garden, and local environment.
Why Outside Windows Need a Different Approach
Outside glass deals with more than just fingerprints. It collects:
- Traffic fumes and oily film from roads.
- Rain spots, mineral deposits, and pollen.
- Salt and sea spray in coastal areas.
- Spider webs, insects, and general grime.
Because of this, the best solution to wash outside windows must handle heavier dirt without harsh chemicals. Eco-friendly mixes and purified water excel here, especially when combined with professional tools.
The Best Eco-Friendly Solution to Wash Outside Windows
For most properties in Ireland, a simple homemade mix gives excellent results.
Core Outside Window Cleaning Mix
Use this reliable solution:
- 1 bucket of warm water.
- A small splash of white vinegar.
- 1–2 drops of mild eco washing-up liquid.
Stir gently to avoid too many suds. This mix:
- Cuts grease and road film.
- Rinses off cleanly.
- Reduces streaks when used with a squeegee.
- Avoids strong chemical smells around your home.
Avoid heavy-handed use of washing-up liquid. Too much suds can leave residue and cause streaking.

Perfect Your Homemade Window Mix
Want to switch to a greener clean without losing the sparkle? Learn how to mix simple, safe ingredients from your own kitchen for crystal-clear glass. Our step-by-step guide shows you the most effective DIY solution for washing your windows at home, so you can save money and cut down on harsh chemicals.
How Long a Professional Window Clean Really Takes
Not sure how much time to allow for a window cleaning visit? We break down what affects the length of a job, from the number of panes to ease of access and weather. Find out how long a thorough window clean usually lasts from start to finish, and plan your day with confidence.
Say Goodbye to Streaky Glass
Nothing ruins a view faster than smears and marks left behind after cleaning. In this expert guide, we walk you through the tools, motions, and solutions that deliver a flawless finish every time. Discover the most reliable method to wash your windows without leaving streaks behind, just like a pro.
Clean High Windows Safely from the Ground
Reaching upstairs or awkward windows doesn’t have to involve risky ladders. Learn about modern poles, brushes, and techniques that keep you safely on the ground while still getting a brilliant shine. Explore practical ways to wash upper windows and hard-to-reach glass without climbing up.
The Best Products for Irish Window Cleaning
Irish weather, coastal air, and hard water all influence which products actually work on your glass. Our in-depth article explains which solutions, tools, and methods give the clearest results in local conditions. Check out what works best for cleaning windows in Irish homes and businesses, and choose the right approach for your property.
Step-by-Step: How to Use This Solution Outside
The right solution matters, but technique decides the finish.
- Rinse loose dirt first
Use a hose or a bucket of plain water to remove dust, cobwebs, and loose debris. This stops grit from scratching the glass. - Apply the cleaning solution generously
Dip a soft applicator or sponge into your eco mix. Start at the top of the window and work down. Use gentle, overlapping strokes. - Tackle stubborn marks
For bird droppings or sticky spots, let the solution sit for a minute. Gently agitate with a non-scratch pad. Do not use metal scrapers on coated or older glass. - Use a squeegee for the finish
Place the squeegee at the top corner and pull down in a straight line. Wipe the rubber blade with a cloth after each pass. Work methodically across the pane. - Dry edges and sills
Use a clean microfibre cloth to wipe around the edges and frame. This removes drips and stops marks forming as the water dries.
This method works well for ground-floor windows and many first-floor panes that you can reach safely with an extension pole.
When Purified Water Is the Best Solution
For higher windows and larger homes, pure water systems often give the best results.
What Is Purified Water Window Cleaning?
Purified water is filtered to remove minerals, metals, and impurities. When applied with a water-fed pole and soft brush:
- It breaks down dirt on the glass.
- Needs no soap or detergent.
- Dries naturally without spots or streaks.
This approach suits:
- Upper floors where ladders are unsafe.
- Large glass areas and modern homes.
- Eco-conscious households who want zero-chemical solutions around gardens and pets.
At an eco-focused window cleaning company, we use purified water as our go-to solution for many outside windows. It offers a deep clean while protecting your planting and drains from chemical runoff.
Choosing the Right Solution for Your Home
Different outside windows benefit from different approaches. Here’s a simple guide:
| Window situation | Best solution type | Why it works well |
|---|---|---|
| Standard house, ground floor | Warm water, vinegar, drop of eco washing-up liquid | Affordable, effective, easy to mix at home |
| Busy roadside or city street | Eco solution plus extra vinegar | Cuts through traffic film and oily residue |
| Coastal or exposed location | Purified water with brush system | Reduces salt marks and mineral spotting |
| Large glass fronts, bi-folds, conservatory | Professional purified water system | Streak-free on big panes, safer and quicker |
| Older frames or flaking paint | Mild eco solution, minimal scrubbing | Protects fragile surfaces and sealants |
If you’re not sure what your home needs, booking a professional eco window clean once can help you see what works best, then you can maintain the finish between visits.
Tools That Make Any Solution Work Better
The best solution to wash outside windows always works alongside good tools:
- Soft applicator or sleeve for even coverage.
- Quality squeegee with a sharp rubber blade.
- Microfibre cloths for detailing and edge drying.
- Extension pole for higher ground-floor windows.
- Bucket with a wide opening for easy access.
Cheap or worn tools are one of the most common reasons windows streak, even when the solution is good.
Common Mistakes That Cause Streaks Outside
Even with the best solution, a few habits can spoil the finish:
- Cleaning in full sun so the solution dries too quickly.
- Using too much detergent, leaving a soapy film.
- Wiping glass with old towels that shed lint.
- Skipping the blade wipe between squeegee strokes.
- Ignoring dirty frames that drip onto clean glass.
Aim to clean on a mild, cloudy day when possible. In Ireland, you get plenty of those.
Why an Eco Cleaning Company Is a Smart Choice
An eco-focused window cleaning service in Ireland offers more than convenience:
- Uses carefully chosen biodegradable solutions.
- Protects lawns, shrubs, and drains from harsh runoff.
- Employs purified water systems for upper floors.
- Works safely with poles instead of risky ladders.
- Delivers consistent, streak-free results across all seasons.
For busy households and businesses, this brings peace of mind as well as clear views.
FAQs About the Best Solution to Wash Outside Windows
1. Is vinegar safe for all outside windows?
Vinegar is safe for most standard glass panes, especially in low concentrations. Avoid getting it onto natural stone sills or unsealed wooden frames, and always rinse or wipe spills promptly.
2. Can I just use washing-up liquid on its own?
You can use a small amount, but on its own it can leave a film that attracts dirt and causes streaks. Combining a tiny amount with warm water and a splash of vinegar usually gives a cleaner finish.
3. How often should I wash outside windows in Ireland?
For most homes, every 8–12 weeks works well. Homes near busy roads, farms, or the coast may need more frequent cleans to stay clear and bright.
4. What is the safest way to clean high outside windows?
Use a water-fed pole system from the ground rather than a ladder. If you don’t own the equipment, hiring a professional eco window cleaner is the safest and most effective option.
5. Are commercial glass cleaners better than homemade solutions?
Some professional products perform very well, but a simple eco mix of warm water, vinegar, and a drop of detergent can match them for many homes. The real difference often comes from the tools and technique rather than the brand on the bottle.
6. Will rain undo my outside window clean straight away?
Light or clean rain usually doesn’t ruin a proper outside window clean, especially if purified water was used. Dirt and splashes from the ground or nearby roads cause more marks than the rain itself.
