Keeping your windows clean sounds simple enough, but you’d be surprised how often people get it wrong. At Statewide Energy Solutions, we’ve seen many well-meaning homeowners unknowingly damage their windows or shorten their lifespan just by using the wrong cleaning methods. The truth is, it doesn’t take a fancy product or expensive tool to clean your windows properly—it just takes knowing what not to do.
We want to help you protect your investment, whether you’ve had your windows for years or just recently got a new set installed. So let’s walk through the most common window cleaning mistakes to avoid, and what you can do instead.
Cleaning Windows on a Sunny Day
It might feel like the perfect time—sun’s out, visibility’s good, and you’re in the mood to get some cleaning done. But cleaning windows under direct sunlight can backfire fast.
Why?
Because the heat causes your cleaning solution to dry before you can wipe it away. That leaves streaks—often worse than the dirt you were trying to clean in the first place.
Instead, choose an overcast day. The cooler temps give you more time to wipe the glass properly, leaving a clean and clear finish.
Using Too Little Cleaning Solution
Here’s another problem we see a lot: people go light on the cleaner, thinking it’ll help avoid streaks. But that can lead to the opposite result.
If there’s not enough cleaning solution, it won’t lift the dirt or grease off the window. That grime ends up getting smeared across the glass.
To get better results:
-
Spray enough solution to loosen the debris.
-
Let it sit for a few seconds.
-
Then wipe thoroughly with a clean microfiber cloth.
The right amount of cleaner helps reduce streaks, not create them.
Skipping the Window Sills and Frames
Jumping straight to the glass might seem faster, but it creates more work in the long run.
Dust and debris on the sills and frames can mix with your cleaning liquid and drip down the window. That leads to smudges, mud streaks, and more time spent cleaning the mess you just made.
Instead:
-
Start by dusting and wiping down the sills and frames.
-
Then move on to the glass.
-
This step prevents messes and protects your window materials from long-term damage.
If you have wood frames, keeping moisture off them is especially important to prevent warping or rotting.
Using the Newspaper Trick
Using old newspapers to clean windows used to be a common trick. But today, it’s not the best choice.
Modern newspapers use thinner paper and different inks, which can leave smudges or streaks behind. Plus, wet newspaper tears easily and leaves fibers all over the glass.
Instead, go for:
-
Microfiber cloths – These absorb well, don’t leave lint, and can be reused.
-
Squeegees – Great for large panes and helps avoid streaking.
-
Lint-free rags – As long as they’re clean and dry, they’ll work better than paper.
We recommend using microfiber cloths for cleaning the energy-efficient windows we install, especially on low-emissivity (Low-E) coated glass.
Using Dirty Cloths or Tools
Cleaning windows with a dirty cloth is like trying to clean a floor with a muddy mop. You’re just moving the grime around.
If your cleaning towel already has dirt or dust on it:
-
It will cause streaking.
-
It can leave residue behind.
-
It might even scratch the glass, especially on coated or specialty windows.
Keep a few clean cloths handy and swap them out often during cleaning. Rinse squeegees and tools between windows if needed.
Forgetting to Clean Both Sides
Only cleaning the inside of your windows may leave you wondering why they still look dirty. The truth is, both sides need attention.
Dust, pollen, pollution, and water spots from rain build up on the outside surface. That outer film can dull the glass or cause long-term etching if left too long.
We recommend:
-
Cleaning both sides of the window every few months.
-
For hard-to-reach windows, consider using an extendable tool or hiring a pro.
Our Window Company in Southlake, TX offers maintenance-friendly window designs that make both sides easier to reach and clean.
Ignoring Hard Water Spots
Hard water leaves behind minerals that can stain your glass. These marks aren’t just unsightly—they can permanently etch the surface if ignored.
If you live in an area with hard water:
-
Dry the windows immediately after cleaning.
-
Avoid letting sprinkler water hit the glass.
-
Use a mix of vinegar and water for tough stains.
For homeowners in The Colony, where water hardness can be a concern, we often recommend windows with protective coatings that resist mineral buildup.
Scrubbing Too Hard
It’s tempting to put some elbow grease into a tough smudge, but excessive pressure can damage the glass or window coatings.
Instead of scrubbing:
-
Spray the spot with cleaner and let it soak.
-
Gently rub it with a soft cloth.
-
For sticky residue, use a plastic scraper—not metal.
Energy-efficient windows, especially Low-E glass, can get damaged by aggressive cleaning. If your windows were installed by our Window Company in Garland, TX, they’ll be protected under warranty—just don’t void it with the wrong tools.
Using the Wrong Products
Avoid ammonia-based cleaners. While they may work on some surfaces, they can:
-
Damage window tint.
-
Cause discoloration.
-
Leave a foggy film on coated windows.
Stick to mild, non-abrasive cleaners. You can also make your own by mixing:
-
One part vinegar
-
One part distilled water
This works well for most home windows, especially those installed by our Window Company in McKinney, TX, which feature modern coatings and energy-efficient layers.
Not Cleaning Often Enough
Dirty windows do more than just look bad—they also block natural light and reduce your home’s energy efficiency.
Over time, buildup can damage seals, trap moisture, or even attract mold.
A good schedule:
-
Clean exterior windows every 3–4 months.
-
Clean interior windows every 2–3 months.
-
Wipe sills and frames monthly to keep dirt from settling in.
If you recently had new windows installed by our Window Company in Flower Mound, TX, regular cleaning will keep them looking like new.
FAQs
How often should I clean my windows?
We recommend cleaning exterior windows every 3–4 months and interior windows every 2–3 months.
Can I use vinegar to clean windows?
Yes. A 50/50 mix of vinegar and distilled water works well for streak-free results.
Do I need special products for Low-E windows?
No. Just avoid harsh chemicals and scrubbing tools. Use soft cloths and mild cleaning solutions.
What’s the best time of day to clean windows?
Aim for early morning or a cloudy day to avoid streaks caused by sunlight drying the cleaner too fast.
What should I do if my windows are too high to reach?
Use an extension pole or hire a professional. Don’t risk injury by stretching or climbing without proper tools.
Keep Your Windows Clear and Lasting Longer
At Statewide Energy Solutions, we install energy-efficient windows built to last. But long-lasting doesn’t mean low maintenance. The truth is, even the best windows need a little care from time to time.
Avoiding these common window cleaning mistakes can help extend your window’s life, protect your investment, and keep your home looking its best.
Ready to upgrade your windows or get help from a team that cares about the long-term condition of your home?
Contact our experts at (214) 960-2798 or submit our online form to schedule your in-home consultation. We’re happy to provide you with a free quote!
Statewide Energy Solutions is the leading Texas provider of window replacement services in Frisco, TX and nearby areas.
Let us help you get the job done right—without the mistakes.
