Clean Outside Windows: Safe 7-Step Method

3. Wash with a Vinegar or Dish Soap Solution

Wash the rinsed glass with a one-to-one mix of white vinegar and warm water, or a drop of mild dish soap in warm water for greasy panes. Apply with a soft brush or a microfibre washer sleeve, keeping the glass wet so the solution can break down dust and film before drying.

The detailed solution and S-pattern wiping technique that produces a flawless finish is covered in the full guide to clean windows streak-free, and the same principles apply outdoors. The difference outside is scale and exposure, so keep the surface wet across larger panes and avoid letting any section dry mid-clean.

4. Scrub Bird Droppings, Sap, and Hard Water Spots

Exterior glass carries marks that interior windows never see. Bird droppings, tree sap, insect residue, and hard water spots all need targeted treatment before the final dry, or they leave permanent etching and cloudy patches.

Apply neat white vinegar directly to the spot and let it sit for about a minute to soften the residue, then lift it with a non-scratch sponge or pad. For stubborn buildup, a scraper with a fresh, wet blade can be drawn in one consistent direction on flat glass only. After spot-treating, rewash the whole pane so the surface is evenly clean and ready to squeegee without leaving a halo around the treated area.

5. Squeegee Dry in Overlapping Strokes

Water left to air-dry on exterior glass is the main cause of streaks, so drying matters as much as washing. Pull the squeegee from top to bottom in overlapping passes, wiping the blade with a clean cloth after each stroke to stop residue smearing back onto the glass.

Finish the edges and the bottom rail with a dry microfibre cloth, where runoff collects on outdoor frames. The right window cleaning tools, a quality squeegee, washer sleeve, and pole- make large exterior panes far quicker to dry cleanly than cloth alone, which simply moves water around.

6. Reach High and Second-Storey Glass Safely

The biggest difference with outside windows is height, and height is where most injuries happen. Wherever possible, clean from the ground using a telescopic pole fitted with a washer and squeegee, or a water-fed pole that scrubs and rinses with purified water for a spot-free finish without detergent.

Poles extend from around 1.5 to 8 metres, covering most two-storey homes from the ground. Avoid leaning from ladders to reach sideways, which is the leading cause of falls. For apartment dwellers, magnetic and robotic devices to clean windows from the inside handle exterior panes safely without leaning out of the frame.

7. Know When Exterior Glass Needs a Professional

Some outside windows are not a safe or practical DIY job. Glass above the second storey, high-rise facades, panes with heavy hard water etching or post-construction residue, and any window that can only be reached by leaning from height should be left to a professional.



Trained window cleaners use water-fed poles, elevated platforms, or rope access with the insurance and height-safety training those methods require. The cost is usually modest against the risk of a fall or cracked glass, and a professional clean also reaches frames, tracks, and sills that hand tools miss from the ground. For routine maintenance between professional visits, the ground-level steps above keep exterior glass clear.

FAQs on Cleaning Outside Windows

These questions reflect what Australian households ask most about exterior glass, where reach, height, and weather make the job different from interior cleaning. The answers focus on safe, practical method.

What is the best way to clean outside windows you cannot reach?

For exterior glass beyond arm's reach, a telescopic pole fitted with a washer sleeve and squeegee is the safest ground-level option, covering most two-storey homes without a ladder. A water-fed pole goes further, scrubbing and rinsing with purified water that dries spot-free and needs no detergent. For apartments, a magnetic window cleaner or a robotic window cleaner lets exterior panes be cleaned from inside. Leaning sideways from a ladder to reach distant glass is the leading cause of falls and should be avoided. When the glass is above the second storey or only reachable from height, a professional with proper access equipment is the safe and faster choice.

How do you clean the outside of apartment windows from inside?

Apartment exterior glass is best cleaned with a device built for the job. A magnetic window cleaner uses paired pads, one inside and one outside, held together through the glass to wash both sides at once, and suits single-glazed panes. For double-glazed apartment windows, a robotic window cleaner attaches by suction and cleans the outer pane automatically while the resident stays indoors. A short telescopic pole with a microfibre pad can also reach exterior glass through an opened sash. Whichever device is used, the safety tether must be attached before the unit goes on the glass, and the magnet strength or suction should match the glass thickness to prevent slipping.

What is the best cleaner for outside windows?

The best everyday cleaner for outside windows is a one-to-one mix of white vinegar and warm water, with a drop of mild dish soap added for greasy or oily glass. This dissolves grime and dries clear without leaving the film that all-purpose sprays often do. A hose rinse before washing removes the grit and salt that exterior glass collects, which matters more than the cleaner itself. For hard water spots, neat vinegar left to sit for a minute lifts mineral deposits. On large or frequently exposed exterior surfaces, a water-fed pole using purified water cleans without any detergent at all and leaves no spots as it dries.

How often should outside windows be cleaned in Australia?

Most Australian homes benefit from cleaning outside windows quarterly, or roughly every three months, to stay ahead of dust, pollen, and grime. Coastal and high-traffic urban properties need more frequent attention, often bi-monthly or monthly, because salt spray and pollution build up faster and become abrasive if left. Commercial frontages and shopfronts are usually cleaned monthly or more for presentation. Spot-cleaning bird droppings and sap as soon as they appear prevents permanent etching between full cleans. A quick ground-level rinse and squeegee on a cool, overcast day keeps exterior glass clear, while a deeper professional clean a few times a year handles height and stubborn buildup.

Clean Outside Windows Safely Without Risking the Height

Learning to clean outside windows well is mostly about managing the things interior glass never involves: loose grit, weather exposure, exterior stains, and above all, height. Rinsing first, washing with a simple vinegar solution, spot-treating droppings and hard water, then squeegeeing dry delivers clear exterior glass, while a telescopic or water-fed pole keeps the whole job at ground level where it is safe.

The single rule worth keeping is to never trade safety for reach. Panes that can only be cleaned by leaning from a ladder or working above the second storey are better left to a professional with the right access equipment, leaving the routine ground-level cleaning to keep every outside window clear between visits.

Want your exterior glass clear without the ladder risk? Request a Window Cleaning Quote and the EverydayClean team will clean your outside windows safely, at any height.