You know what drives me crazy? Spending an entire Saturday morning washing windows, only to step back and see those annoying streaks everywhere. The sun comes out, and suddenly your “clean” windows look worse than before you started.
I’ve been running Prime Time Window & Gutter Cleaning since 1996, and this is literally the number one complaint I hear. People think they’re doing something wrong. They buy expensive cleaners. They try different paper towels. Nothing works.
Here’s the thing though. The streaks? They’re usually not caused by what you think they are.
The Real Reason Your Windows Keep Streaking (And It’s Probably Making You Mad)
Most people blame their cleaning solution. Or their technique. Sometimes they even blame the weather. But after cleaning windows on over 100,000 Chicago-area homes, I can tell you the real culprit is usually one of three things you’d never expect.
Leftover Residue is Your Enemy
This is the big one. When you clean windows, you’re not just removing dirt. You’re dealing with layers of old cleaning products, hard water minerals, and environmental buildup that’s been sitting there for months or years.
Every time someone cleans windows without fully rinsing, they leave behind a tiny bit of cleaner. Then the next person adds more. And more. Eventually, you’ve got this invisible film that makes streaking basically inevitable. No matter what you do.
Professional window washing services solve this because we start by stripping everything off the glass. Not just cleaning it. Actually removing all the old gunk that’s been building up. That’s why when reliable window washers finish a job, the glass stays cleaner longer.
I see this constantly in Naperville and throughout the western suburbs – homes where the previous owner used those spray-and-wipe products for years. The windows look clean at first. But step back in the sunlight? Streaks everywhere.
Your Tools Are Sabotaging You
Paper towels seem like the obvious choice, right? Wrong. They’re terrible for windows. They leave behind lint, they don’t absorb evenly, and they can actually scratch glass over time.
Same with old rags. That t-shirt you’ve been using? It’s probably got fabric softener residue in it. Or old detergent. Or both. And all of that transfers right onto your glass.
Licensed window cleaning professionals use squeegees for a reason. Not because we’re trying to look cool (though we totally do). Because they work. They remove water completely, leaving nothing behind to create streaks. The right tools matter way more than most people realize.
Ready for windows without streaks? Contact us today – we’ll show you what professional window washing is supposed to look like!
Hard Water is Ruining Everything
Chicago-area water is relatively hard. That means it’s got lots of minerals dissolved in it. When water dries on glass, those minerals stay behind. You can’t see them at first, but over time they build up. And build up. And build up some more.
Then when you try to clean your windows, you’re just pushing those minerals around. They create a hazy film that looks exactly like streaks. But it’s not streaks from cleaning – it’s mineral deposits that have been there for months.
Experienced window professionals have specialized solutions for hard water stains. We don’t just clean around them. We actually remove them. That’s the difference between DIY and professional results. One addresses the symptoms. The other fixes the actual problem.
I’ve seen this in every Chicago suburb. From window washing in Highland Park to Oak Park, Evanston to Wilmette – doesn’t matter where you live. Hard water affects everyone. And most people have no idea it’s the reason their windows look streaky no matter what they try.

The Mistakes You’re Making (That Everyone Makes)
Look. Window cleaning seems simple. Spray some cleaner, wipe it off, done. But there’s actually a bunch of ways to mess it up. And most people make at least three of these mistakes every single time.
Cleaning in Direct Sunlight
This is the absolute worst thing you can do. When the sun’s beating down on your windows, your cleaning solution dries way too fast. You’re left with dried cleaner on the glass before you even finish wiping.
That dried cleaner? That’s your streaks.
Window washers near me know to work on cloudy days or during times when the sun isn’t directly on the windows. It’s not about convenience. It’s about chemistry. Solutions need time to work and be properly removed before they dry.
The International Window Cleaning Association even has specific guidelines about this. Temperature, sunlight, humidity – all of it matters. But most homeowners don’t know that. They just clean whenever they have free time. Then wonder why it looks terrible.
Using Too Much Cleaner
More cleaner doesn’t mean cleaner windows. It means more residue. More streaks. More problems.
Professional window cleaning companies use way less solution than you’d think. Just enough to loosen dirt and minerals. Then we remove it completely. There’s no benefit to drowning your windows in cleaning solution. None.
I watch DIY cleaners spray until the glass is dripping wet. They think that’s good. It’s not. That’s setting yourself up for streaky failure. Every extra drop of cleaner is something else that needs to be removed perfectly. And perfect removal is really, really hard with paper towels.
Not Changing Your Water
If you’re using a bucket of water and rags, that water gets dirty fast. Then you’re just redistributing dirt around your windows. You’re not cleaning. You’re rearranging grime.
Top-rated window service providers change their water constantly. Some use fresh water for every window. Others have systems that filter and rinse continuously. Because clean water is the only way to get actually clean windows. Using dirty water is like washing your car with mud. It makes no sense.
Whether you’re in the far western suburbs or the Chicago north shore, this mistake causes streak problems for homeowners everywhere.
Tired of fighting streaks? Let the bonded window cleaners at Prime Time do it right. Get your free quote now!
How to Actually Prevent Streaks (Professional Secrets)
Alright. Now that you know what causes streaks, let’s talk solutions. I’m gonna share the techniques that certified window washing professionals use every single day.
The Two-Step Process
Professional window washing isn’t a one-step thing. First, we clean. Then we rinse. These are separate steps with separate purposes.
The cleaning step removes dirt, minerals, and old residue. We use professional-grade solutions that break down everything without leaving their own residue behind. These aren’t the products you buy at the store. They’re formulated specifically for glass.
Then comes the rinse. This is where most DIY attempts fail. You need to remove every trace of cleaner. Every single drop. If you leave anything behind, that’s where your streaks come from. Insured window washers use squeegees for this. One smooth pass removes everything. No streaks left behind.
It sounds simple. But the technique takes practice. The angle of the squeegee matters. The pressure matters. How you overlap your strokes matters. There’s a reason this is an actual profession and not just something anyone can do perfectly.
Temperature and Timing Matter More Than You Think
According to OSHA window cleaning safety standards, working conditions affect both safety and quality. But temperature specifically affects how cleaning solutions work.
Too cold? Solutions don’t break down grime effectively. You’ll be scrubbing forever and still not get things clean. Too hot? Solutions evaporate before you can remove them properly. Streak city.
The ideal temperature range is between 50 and 75 degrees. Not too hot, not too cold. That’s why professional window washing companies often recommend spring and fall. The weather’s perfect for window cleaning. Not because it’s comfortable for us. Because it produces the best results.
In Schaumburg and Arlington Heights, we see dramatic quality differences based on season. Summer cleanings during peak heat? Streak central. Fall cleanings when temps are mild? Perfect every time.
The Right Tools Make All the Difference
Here’s what experienced window professionals actually use:
- Professional squeegees (not the cheap ones from hardware stores)
- Microfiber scrubbers (for applying solution)
- Professional-grade cleaning solutions (formulated for glass)
- Purified water systems (for final rinses)
- Extension poles (for safe reaching)
Notice what’s not on that list? Paper towels. Newspaper. Old t-shirts. Windex. None of the stuff most people use.
The Glass Association of North America publishes standards for proper glass maintenance. And guess what? Their recommendations look exactly like what professional window washers do. There’s a reason for that. These methods actually work.
Dealing with Different Types of Glass
Not all windows are the same. Older windows might have texture. Newer windows might have special coatings. Some windows are tinted. Each type needs slightly different treatment.
Trusted window cleaning companies know this stuff. We adjust our techniques based on what we’re working with. You can’t use the same approach on a 50-year-old window that you use on brand-new Low-E glass. Well, you can. But your results will be terrible.
This expertise is why window washing services cost what they cost. You’re not just paying for labor. You’re paying for knowledge. For experience. For understanding how different glass reacts to different treatments under different conditions.
We handle everything from historic homes in Hinsdale to new construction in Plainfield. Each requires different approaches for perfect results.
Want to know exactly what’s causing YOUR streaky windows? Our 5-star window cleaning pros will diagnose the issue for free. Schedule your assessment today!
Common Window Cleaning Myths That Need to Die
Time to debunk some stuff that everybody believes but nobody should. These myths make people waste time and money on things that don’t work.
Myth: Vinegar Is the Best Cleaner
Vinegar is cheap. I’ll give it that. But best? No. Not even close.
Vinegar is acidic, which means it can help with mineral deposits. But it also leaves its own residue. And it smells terrible. And if you use too much, it can actually etch certain types of glass over time. Not great.
Professional cleaning solutions are pH-balanced. They won’t damage glass. They won’t leave residue. They won’t make your house smell like a salad. They’re formulated specifically for this purpose. That’s why window washing companies use them instead of mixing random household products.
Myth: Rain Makes Windows Dirtier
People believe this one so hard. “Why should I pay for window cleaning? It’s just gonna rain tomorrow and ruin everything.”
Wrong. Rain itself doesn’t make windows dirty. It’s actually pretty clean. What makes windows dirty is dust and pollen mixing WITH rain. If your windows are already clean, rain barely affects them. It just rinses them off a bit.
But if your windows are dirty, rain turns that dirt into muddy streaks. That’s not the rain’s fault. That’s your dirty windows’ fault. Clean windows stay cleaner longer, even in rain. This is basic window maintenance that the Environmental Protection Agency actually addresses in their building maintenance guidelines.
I clean windows in Elmhurst, Lombard, and Glen Ellyn all the time. Even during rainy springs. And you know what? The windows still look amazing weeks later. Because we removed all the stuff that would turn into mud.
Myth: You Only Need to Clean the Outside
This drives me nuts. People spend hours on exterior windows, then ignore the inside completely. Then they wonder why their view still looks hazy.
Inside windows get just as dirty as outside ones. Just different types of dirt. Cooking grease, dust, fingerprints, pet nose prints – all of it builds up. And from the inside, YOU can see it every single day.
Professional window washing always includes both sides unless you specifically ask for exterior-only. Because cleaning just one side is like washing half your car. It looks weird and doesn’t really solve anything. Complete window cleaning services address all surfaces. That’s what creates that “wow” factor where you can barely tell there’s glass there.
When DIY Window Cleaning Becomes More Trouble Than It’s Worth
Look. I’m not here to tell you that you can never clean your own windows. Small jobs? Ground-level windows? Sure. Go for it. But there’s a point where DIY stops making sense. Both financially and practically.
Safety Is a Real Concern
Ladders are dangerous. Like, actually dangerous. The U.S. Consumer Product Safety Commission reports thousands of ladder-related injuries every year. And lots of them happen during window cleaning.
You know what’s not worth risking? Falling off a ladder to save $200 on window washing services. Professional window cleaners have insurance, training, and proper equipment for working at heights. We follow OSHA guidelines. We use fall protection. We don’t take stupid risks.
Two-story homes in Downers Grove and across the southern suburbs? You need proper equipment. You need experience. You need insurance in case something goes wrong. Most homeowners have none of those things. That’s dangerous and dumb.
Time Is Money
How long does it take you to clean all your windows? Four hours? Six? All day?
Now multiply that by how much your time is worth. Suddenly professional window cleaning doesn’t seem so expensive, does it? Especially when our results last longer and look better than DIY attempts.
Plus, there’s opportunity cost. You could spend your Saturday with family. Or relaxing. Or doing literally anything except fighting with streaky windows. That has value too. Maybe more value than you realize.
Results Matter
Here’s the honest truth. Your DIY window cleaning probably looks okay. But it doesn’t look professional. There’s a noticeable difference between “good enough” and “actually excellent.”
Window washing companies have the tools, products, and expertise to achieve results you simply can’t match at home. That’s not an insult. It’s reality. We do this every single day. We’ve developed techniques over years or decades. You clean windows maybe twice a year.
The difference is obvious. Especially on large windows. Or high windows. Or windows with hard water stains. Or any windows that have special challenges. Professional results look professional. DIY results look… DIY.
Wondering how much does window washing cost for your home? We offer free estimates with zero obligation. Find out now!
What to Look For in a Professional Window Washing Company
Okay. Let’s say I’ve convinced you that professional help makes sense. Great. But how do you choose? Because not all window washing companies are created equal. Trust me on this.
Experience and Insurance Are Non-Negotiable
At Prime Time, we’ve been doing this since 1996. Nearly 30 years. That experience matters. We’ve seen every possible window situation. We know how to handle each one.
But experience alone isn’t enough. You also need a company that’s bonded and insured. Fully insured. Not just liability insurance – also workers comp. Because if someone gets hurt on your property and they don’t have insurance? You could be liable. That’s a nightmare waiting to happen.
Don’t just take their word for it either. Ask for proof. Any legitimate company will happily show you their insurance certificates. If they hesitate or make excuses? Run away. That’s a massive red flag.
Reviews and References Tell the Truth
We’ve earned 4.5 stars on HomeAdvisor from over 1,500 verified customers. Those reviews didn’t happen by accident. They happened because we show up on time, do excellent work, and treat people’s homes with respect. Every single time.
Check reviews before hiring anyone. Look for patterns. Does the company respond to negative reviews professionally? Do they have lots of recent reviews, or just a few old ones? Are people specifically mentioning results, or just saying generic nice things?
Real customers tell real stories. That’s the best way to judge a trusted window cleaning company. Marketing can say anything. Reviews show what actually happens.
Transparent Pricing Matters
How much is window washing? It depends on your home. Size, number of windows, condition, accessibility – all of it factors into pricing.
But here’s the thing. Good companies will give you accurate estimates. Not vague ranges. Not “we’ll figure it out when we get there.” Actual estimates based on actually looking at your home.
At Prime Time, we offer free estimates where we come out, count windows, assess the situation, and give you a real number. No surprises. No hidden fees. Just honest pricing. That’s how it should work.
Also check our current coupons – we often have deals that make professional service even more affordable.
Look for Full-Service Options
The best window washing companies don’t just do windows. They do everything exterior-related. Windows, gutters, power washing – the whole package.
Why does this matter? Because these problems are connected. Dirty gutters lead to water overflow that makes windows dirtier. Grimy siding makes windows look worse by comparison. Rain gutter cleaning near me shouldn’t be a separate search from window washing. They should be one thing.
We serve the entire Chicagoland area – from window washing in Lake Forest to Joliet, Glenview to Aurora. And at every location, we offer complete exterior cleaning. Not just windows. Everything.
If you need gutter cleaning in Naperville or power washing in Chicago, we handle it all. One company, complete service.

The Truth About Professional Window Washing Costs
Let’s talk money. Because I know that’s what everyone’s really wondering. How much does window washing cost, and is it actually worth it?
Average Pricing for Chicago Area Homes
For a typical single-family home in the Chicago suburbs, professional window washing usually runs between $150 and $400. That includes both interior and exterior surfaces, screen cleaning, and frame wiping.
Small ranch homes with 15-20 windows? Usually on the lower end. Large two-story colonials with 40+ windows? Higher end. Makes sense, right?
But here’s what matters more than the total cost. The value. Professional cleaning lasts 3-4 times longer than DIY attempts. The results look dramatically better. And you save hours of your own time. When you factor all that in? It’s actually a bargain.
What Affects Your Price
Several things influence how much your specific job will cost:
- Number of windows
- Window size and type
- Condition (how dirty they are)
- Accessibility (high windows cost more)
- Additional services (screens, tracks, frames)
- Frequency (regular customers get better rates)
A first-time deep cleaning costs more than maintenance cleaning. Windows that haven’t been professionally cleaned in years need extra work to remove all the buildup. But once they’re truly clean? Maintenance is easier and cheaper.
Why Cheap Isn’t Always a Good Deal
If someone quotes you $75 for whole-house window cleaning? Be suspicious. Very suspicious. That’s probably not a professional operation. That’s probably some guy with a spray bottle and a rag who does quick, low-quality work.
Real window washing services cost real money because they involve real expertise, real insurance, real equipment, and real time. Companies charging way below market rates are cutting corners somewhere. Usually quality. Sometimes safety. Often both.
You get what you pay for. Always. In every industry. But especially in home services where quality really, really matters.
Want a fair, honest quote from certified window washing professionals? We’ll assess your home and give you accurate pricing. Request your free estimate!
Taking Care of Your Windows Between Professional Cleanings
Even with professional service twice a year, you’ll want to do some light maintenance between visits. Just spot cleaning. Nothing major. Here’s how to do that without creating new problems.
Simple Maintenance That Actually Helps
Dust window sills and frames regularly with a dry microfiber cloth. This prevents dirt from transferring to glass during rain or when you open windows. Takes like 30 seconds per window. But it makes a real difference.
If you notice a spot or smudge, use a damp microfiber cloth to wipe it away gently. No cleaner needed for small touch-ups. Just water. Dry it immediately with a clean cloth. That’s it. Don’t overthink it.
Keep your window tracks clear of debris. Vacuum them out occasionally. This prevents dirt from getting kicked up onto clean glass every time you open a window. Simple prevention that saves cleaning later.
What NOT to Do
Don’t use glass cleaner on your windows between professional services unless absolutely necessary. Every time you add cleaner, you risk leaving residue. That residue builds up over time. Then your next professional cleaning takes longer and costs more.
Don’t scrub hard on spots. You might scratch the glass. If something won’t come off with a damp cloth, leave it for the professionals. We have the right products to remove stubborn stuff safely. You probably don’t.
Don’t wash windows in direct sunlight even for touch-ups. If you must deal with a spot right away, wait for a cloudy moment or do it early morning or late evening. Temperature and sunlight matter even for tiny cleaning jobs.
Why Chicago Weather Makes Professional Window Cleaning Even More Important
Living in the Chicagoland area means dealing with some pretty extreme weather. That weather is tough on windows. Really tough. Way tougher than most climates.
Winter Salt Spray and Spring Pollen
Winter road salt gets everywhere. It’s in the air, splashing up from cars, coating everything. That salt spray leaves mineral deposits on windows that are incredibly hard to remove. You can’t just wipe them away. You need proper solutions and techniques.
Then comes spring with its absurd pollen levels. Every surface turns yellow-green. Windows get coated in this sticky pollen that seems impossible to fully clean. It builds up year after year if not properly addressed.
This is why I recommend professional cleaning at least twice a year for most homes. Once in spring to remove winter salt and early pollen. Once in fall to prepare for winter and remove summer grime. This schedule keeps windows in good condition year-round.
Storm Debris and Humidity
Chicago summers bring sudden storms. Those storms kick up dirt, leaves, and debris that gets plastered onto windows by wind and rain. That stuff doesn’t just rinse away. It sticks. And it needs proper cleaning to remove completely.
Summer humidity also causes condensation issues on some windows. That condensation can lead to mineral buildup on interior surfaces. Professional cleaning addresses both sides and prevents long-term damage from moisture and minerals.
We’ve cleaned windows in every Chicago suburb under every possible weather condition. From Crystal Lake to Tinley Park, Woodridge to Batavia – the challenges are similar everywhere. Chicago weather is tough on windows. Professional maintenance is the answer.
Whether you’re in the northwest suburbs, far northwest, or Chicago neighborhoods, seasonal weather affects all windows the same way.
Frequently Asked Questions About Streaky Windows in the Chicago Area
Why do my windows streak more in summer than other seasons?
Summer heat causes cleaning solutions to evaporate too quickly. Before you can properly wipe them away, they dry on the glass and leave streaks. Professional window washing accounts for this by adjusting solution amounts and working methods based on temperature. In Chicago summers, experienced window professionals often work earlier in the day or choose cloudy days specifically to avoid this issue. Whether you’re in Wheaton or Skokie, summer heat creates the same challenges.
How often should I have my windows professionally cleaned in the Chicago suburbs?
Most Chicagoland homes benefit from professional window washing twice a year – typically spring and fall. However, homes near busy roads, homes with lots of trees, or properties with sprinkler systems hitting windows might need quarterly cleaning. The frequency depends on your specific situation, but twice yearly is the sweet spot for most people in places like Elgin, Bolingbrook, and the surrounding areas.
Will professional window cleaning remove hard water stains that I can’t get off?
Yes, in most cases. Insured window washers have specialized products and techniques for hard water stain removal that aren’t available to homeowners. Some extremely severe stains that have been there for many years might not come off completely, but experienced window professionals can usually restore clarity even to badly stained glass. This is one of the biggest benefits of professional service over DIY attempts. We handle tough stains in homes from Northbrook to Orland Park every single day.
Can I still see streaks after professional cleaning, and what should I do?
If you see streaks immediately after professional window washing, there may be an issue with technique or product residue. Contact your window washing company right away. Reputable companies like Prime Time guarantee satisfaction and will return to address any concerns at no charge. Most streak complaints after professional service come from viewing windows under different lighting than when they were cleaned – what looks perfect on a cloudy day might show issues in bright sunlight.
Is professional window cleaning worth the cost compared to doing it myself?
For most homeowners, yes. When you factor in the cost of quality tools, professional-grade cleaners, your time value, and the risk of ladder accidents, professional service makes financial sense. Plus professional results last significantly longer than DIY cleaning, meaning you need service less frequently. The streak-free clarity you get from certified window washing professionals simply isn’t achievable with store-bought products and basic equipment. Whether you’re in Des Plaines, Palatine, or Mount Prospect, professional service delivers value that DIY can’t match.
Your Next Steps to Actually Clean Windows
Alright. You’ve made it this far. You know why your windows streak, how to prevent it, and when to call professionals. So what now?
Here’s my advice. Try these professional techniques on a few windows. See if your results improve. If they do? Great. You’ve saved some money and learned new skills. If they don’t? That’s okay too. That’s what we’re here for.
At Prime Time Window & Gutter Cleaning, we’ve been serving the Chicago area since 1996. We’re fully bonded and insured. We’ve cleaned over 100,000 homes. And we guarantee satisfaction on every single job.
Whether you’re in Bartlett, Carol Stream, Streamwood, Hoffman Estates, or anywhere else in Chicagoland, we can help. We’ll make your windows so clear you’ll wonder if there’s even glass there.
Need gutter cleaning in Aurora? We do that too. How about power washing in Naperville? Yep. Complete exterior cleaning services for your entire home.
From Addison to Zion, from Algonquin to Yorkville, we’ve got you covered. Professional results. Fair pricing. Guaranteed satisfaction.
Ready to experience truly streak-free windows? Contact Prime Time for your free estimate today. We typically respond within the hour, and we can usually schedule service within a day or two. Let’s solve this streak problem once and for all!
Prime Time Window & Gutter Cleaning has been providing professional window washing, gutter cleaning, and power washing services to residential and commercial properties throughout the Chicago metropolitan area since 1996. We’re fully bonded, insured, and committed to customer satisfaction. Serving communities from Berwyn to Buffalo Grove, Cicero to St. Charles, and everywhere in between.
