Windows · 3 min read
Why your windows streak (and how professionals avoid it)
The real reasons windows streak, from too much product to dirty frames, and the techniques professionals use for streak-free glass.
Key takeaways
- Too much product and cleaning in direct sun cause most streaks
- Dirty frames and tracks put grime back on the glass
- A squeegee and clean cloth beat paper towels
You clean the windows, step back, and they’re covered in streaks. It’s frustrating, and almost always comes down to technique.
Common causes of streaks
- Using too much cleaning product, which leaves residue
- Cleaning in direct sun, so the glass dries before you finish
- Paper towels, which leave lint and smear
- Dirty water or a dirty cloth
- Skipping the frames, so dirt runs back onto the glass
How professionals do it
- Clean frames, sills and tracks first
- Wash the glass with a small amount of solution
- Remove the water with a clean squeegee in overlapping strokes
- Wipe the squeegee blade after every stroke
- Detail the edges with a lint-free cloth
Outside windows
Exterior glass collects salt, dust and hard-water spots that need more work. Upstairs windows also need safe access. That’s where a professional window clean saves time and risk.
Frequently asked questions
Is vinegar good for cleaning windows?
Diluted vinegar can cut through light grime, but the technique matters more than the product. Use little, and squeegee it off.
Need a hand?
Maidly looks after homes across Christchurch with eco-friendly methods and a 100% work guarantee on every service. Request a free quote.