Window Cleaning Tips: How to Get Streak-Free Glass Every Time

Why Windows Streak

Understanding what causes streaks helps you avoid them:

• Cleaning in direct sunlight - Solution dries too fast
• Wrong products - Some leave residue
• Dirty cloths - Spread grime rather than remove it
• Hard water - Leaves mineral deposits
• Not drying properly - Water spots form as liquid evaporates

The Best Time to Clean Windows

Ideal conditions:

• Overcast but dry day
• Mild temperature
• No direct sunlight on the glass
• Early morning or evening

Avoid cleaning in strong sun or extreme temperatures.

Professional Window Cleaning Method

What You'll Need

• Bucket with warm water
• Washing up liquid (just a few drops)
• Squeegee (invest in a good one)
• Microfibre cloths
• Sponge or applicator

Step-by-Step Process

1. Remove loose dirt

Brush or wipe frames and sills first to prevent mud splashing onto clean glass.

1. Wash the glass

Using your sponge and soapy water, wet the entire window. Scrub to loosen dirt.

1. Squeegee technique

• Start at the top corner
• Pull straight down in overlapping strokes
• Wipe the blade after each stroke
• Alternatively, use horizontal strokes from top to bottom

1. Detail the edges

Use a dry microfibre cloth to wipe any water from the edges.

1. Buff if needed

If any streaks remain, buff with a clean, dry microfibre cloth.

DIY Cleaning Solutions

Basic Window Cleaner

• 2 cups warm water
• 1/2 cup white vinegar
• 1/4 teaspoon washing up liquid

Hard Water Solution

For windows with mineral deposits:

• 1 cup water
• 1 cup white vinegar
• Apply, leave for 5 minutes, then clean normally

Commercial Options

If making your own isn't your thing, look for:

• Products designed for glass (not multi-surface)
• Those that specify "streak-free"
• Concentrated options (less is more)

Common Mistakes to Avoid

1. Using newspaper - Once effective, today's inks can transfer
2. Too much product - Creates residue that streaks
3. Paper towels - Often leave lint behind
4. Circular motions - Creates swirl marks
5. Ignoring frames - Dirty frames = dirty drips on glass

Cleaning Different Types of Glass

Double/Triple Glazing

Never dismantle sealed units. Clean exterior surfaces only. For condensation between panes, the seal has failed and the unit needs replacing.

Leaded or Decorative Glass

Use a soft cloth, never a squeegee. Be gentle around lead joints.

Frosted Glass

Clean as normal, but dry thoroughly to prevent water marks showing more on textured surface.

Conservatory Roofs

Consider professional cleaning - working at height requires proper safety equipment.

Maintaining Clean Windows

• Wipe away bird droppings promptly (they etch glass)
• Keep screens clean to prevent dirt washing onto glass
• Trim vegetation away from windows
• Clean every 2-4 months depending on your location

When to Hire Professionals

Professional window cleaners are worth considering for:

• Upper floor windows without safe access
• Large properties with many windows
• Conservatories and glass extensions
• Commercial properties
• One-off deep cleans before events

They have:

• Proper safety equipment
• Water-fed pole systems
• Pure water technology (no drying needed)
• Experience for fast, consistent results