If your windows always end up streaky no matter what you use, the problem probably isn't your technique — it's your water. Here's what's really going on.
The Real Reason Windows Streak
Streaking is usually caused by mineral deposits left behind from hard water, combined with cleaning technique — wiping in circles or using a dirty cloth just redistributes the residue instead of removing it.
Why Paper Towels and Store-Bought Cleaner Make It Worse
Paper towels shed fibers and push residue around rather than lifting it, and most store-bought glass cleaners aren't formulated to fully break down hard-water mineral buildup.
How Water-Purification Window Cleaning Works
Water-purification systems strip minerals from the water before it touches the glass, so it dries completely clear with nothing left behind to streak — no chemical residue, no water spots.
How Often Should Windows Be Professionally Cleaned?
Most Northern NJ homes and businesses do well with a professional cleaning every few months, more often for storefronts or homes near busy roads where grime builds up faster.
What About High or Hard-to-Reach Windows?
Second-story and hard-to-reach panels are exactly where DIY attempts tend to go wrong — or get skipped entirely. Certified specialists have the equipment to safely reach and detail them properly.
Jacklin Cleaning's window service also covers frames, sills, and tracking channels, and can be bundled with a recurring residential or commercial cleaning plan. Learn more about Professional Window Cleaning →
