Clean, well-cleaned windows instantly lift the look of any building. Whether you manage an office or a large commercial site, clear glass creates a positive impression and allows natural light to brighten interiors. However, washing windows outside, especially those located high above the ground is one of the most challenging maintenance tasks. Safety concerns, equipment limitations, and access issues make it difficult to complete without the proper approach.
This guide explains everything you need to know before cleaning hard-to-reach windows, the essential supplies you need and the best way to clean outside windows properly.
What to Know Before Cleaning Outside Windows
Before reaching for a squeegee or bucket, take a moment to plan. Understanding your environment and potential risks is the first step toward clean, clear windows.
Assess Accessibility
Identify which windows can be cleaned safely from ground level and which require ladders, poles, or specialist access systems. Knowing the exact height and angles helps determine what method is best suited.
Understand the Building Layout
Consider any barriers like signs, ledges, or tight spaces that may make cleaning difficult. Commercial buildings with glass façades or multiple levels often require specialized cleaning solutions.
Priorities Safety
Safety always comes first. The UK’s Working at Height Regulations require anyone cleaning upper-level windows to follow proper procedures. Always use the right PPE non-slip footwear, gloves, and safety harnesses if you are elevated.
Check the Weather
Avoid cleaning on hot, sunny days. Direct sunlight can cause streaks and water spots because the cleaning solution dries too quickly. Cloudy but dry days are ideal.
Know the Glass and Frame Material
Some windows have protective coatings that can be damaged by harsh chemicals. Aluminum, PVC, or timber frames all react differently, so match your cleaning products accordingly.
What to Use Clean Outside Windows
Having the correct tools makes a huge difference in both results and efficiency. Professional cleaners use equipment that leaves windows clean and clear.
Basic Tools
You’ll need a sturdy bucket, a quality squeegee, scrubber, and microfiber cloths. These help remove dirt without scratching the glass.
Extension Equipment
Telescopic poles or water-fed systems are essential for windows that are too high to reach by hand. They make it easy to clean high windows safely from the ground.
Cleaning Solutions
A mild detergent mixed with warm water works well for most glass surfaces. For a more natural option, vinegar-based solutions remove dirt and stains easily. Many commercial cleaners now use purified water systems that leave windows fully clean and clear.
Safety Gear
Always wear protective gloves, goggles, and non-slip shoes. For working at height, safety belts and helmets are mandatory.
Eco-Friendly Products
If sustainability matters to your business, choose biodegradable, non-toxic products that are safe for both staff and the environment.
How to Clean Outside windows
Cleaning outside windows demands patience and the right technique. Here’s a step-by-step guide to clean safely and easily.
Preparation
To work safely, make sure the area is free of vehicles, furniture, or other objects. Set up ladders or poles on stable ground and inspect all equipment, including ropes and clamps, before starting.
Step-by-Step Cleaning Process
- Rinse the Window: Use water to wash away dust and loose dirt so it doesn’t scratch the glass.
- Apply Cleaner: Gently put the cleaning solution on the window with a sponge or mop, working from top to bottom.
- Scrub Carefully: Move the sponge in small circles to lift dirt and stains.
- Rinse Again: Rinse away the soap and dirt with clean water or a purified water system.
- Squeegee the Window: Pull the squeegee from top to bottom in smooth passes. Wipe it after each swipe.
- Dry the Edges: Wipe the corners and edges with a dry cloth to stop drips or streaks.
Windows That Are Hard to Reach
If windows are located out of the safe reach of ladders or poles, consider professional equipment such as cherry pickers, rope-access systems, or long-reach pure-water poles that can reach up to 60 feet. These methods not only give a perfect finish but also follow all safety rules.
Common Mistakes to Avoid
Even the simplest window cleaning task can go wrong if not done carefully. Avoid these common mistakes:
- Cleaning in direct sunlight or windy conditions
- Overreaching from ladders, risking imbalance
- Using harsh chemicals that damage seals or coatings
- Ignoring window frames and corners
- Using paper towels, which can leave bits of lint
- Neglecting regular cleaning schedules, it is harder to remove stubborn dirt later.
A consistent maintenance plan prevents these issues and keeps your windows looking bright and clean all year
When to Hire Professional Window Cleaners
Sometimes, the smartest decision is to hire experts. If your building has multiple floors, limited ground access, or safety concerns, professional cleaners are the safest option.
Hiring a certified team ensures:
- Compliance with UK safety regulations
- Specialist tools for rope or pole access
- Trained staff experienced in working at height
- Windows that stay clean and clear every time
- Time savings for your facilities team
Professionals like G3 FM Services bring experience, insurance, and the right equipment to every job, reducing risk and delivering a clean, professional look.
Maintenance & Prevention Tips
Regular cleaning saves money and helps your windows last longer.
- Schedule cleaning every 4–6 weeks for commercial properties.
- Apply protective coatings to repel water and dirt.
- Inspect seals and frames for wear or cracks.
- Use purified water for the final rinse to avoid mineral spotting.
- Keep records of each clean to track performance and maintenance intervals.
Consistent care ensures your building continues to look bright, professional, and welcoming.
Why Choose G3 FM Services for High-Access Window Cleaning
G3 FM Services is a trusted facilities management company offering comprehensive cleaning solutions across the UK. Our trained window cleaning specialists use modern access systems, from water-fed poles to rope-access and mechanical lifts, ensuring every corner of your building receives attention.
We understand that every property is unique, so our team carries out full risk assessments and develops safe, tailored cleaning plans. With flexible scheduling and minimal disruption, you can maintain a professional image without interrupting daily operations.
Clean windows outside, G3 FM Services provides expert cleaning services, helping businesses maintain a clean and professional environment under one trusted name.
Contact G3 FM Services today to schedule a site survey or request a free quote for your window cleaning requirements.
Conclusion
Cleaning outside windows, especially those that are difficult to reach requires planning, precision, and the right tools. By assessing these points, using safe techniques, and choosing suitable cleaning solutions, you can achieve clean, clear results without risk.
For high-level or large-scale projects, professional window cleaners remain the most reliable option. Their expertise, equipment, and safety standards guarantee perfectly clean windows and peace of mind.
