Most people don’t think about roof cleaning in Aurora, IL until they’re backing out of the driveway one morning and notice it. Those dark streaks running down the shingles like someone spilled coffee up there. By the time you actually see it from the ground, it’s usually been growing for a year, maybe two.
It’s not dirt, by the way. That surprises a lot of people. It’s alive, technically and it spreads.
We’ve been washing roofs (and windows and gutters — it’s a whole thing) around Chicagoland since 2003. Ernest Windows gets asked about roof cleaning constantly once spring hits, mostly because that’s when people finally look up at their own house for the first time since October.
Why Roof Cleaning Is Important
A roof just sits there, right? Not really. It’s dealing with moisture, shade and organic buildup nonstop and that’s basically a welcome mat for growth.
Here’s the part that gets missed: algae and moss don’t stay on the surface. Given time they work down into the granules on your shingles. That granule loss — not the algae itself — is what actually eats into how long your roof lasts.
There’s the resale thing too. Streaky black roof, first thing a buyer sees pulling up. Before the porch, before the landscaping, before anything.
What Causes Black Streaks on Your Roof?
A bacteria. Gloeocapsa magma, if you want the actual name for it. Airborne, lands on roofs everywhere — this isn’t an Aurora-specific problem, though our weather doesn’t help.
It feeds on the limestone filler in asphalt shingles. As it spreads it darkens, which is why the streaking always starts small and just kind of creeps outward season after season.
North-facing sections get it worst, usually. Less sun, more retained moisture and moisture is exactly what this stuff wants.
Being close to the Fox River doesn’t do you any favors either. Homes near the water tend to show streaking a season or so earlier than homes further out.
Roof Algae, Moss and Lichen Removal
People lump these three together. They’re not the same thing.
Algae’s the streaking. Mostly cosmetic at first, though it spreads quickly if nobody deals with it.
Moss is worse. Thick patches, usually tucked into shaded valleys or wherever branches hang over the roof and it holds water right up against the shingle. That trapped moisture is where real damage starts.
Lichen’s the stubborn one. It roots into the shingle itself and getting it off without tearing up the surface underneath takes an actual process — not just scrubbing harder.
Our Roof Cleaning Process
Nothing complicated. We just don’t skip steps.
- Inspection first. Walk the roof, check shingle condition, note anything concerning before we touch a hose.
- Pre-treatment. A cleaning solution goes down to break up algae, moss and lichen at the root.
- Soft wash application. Low pressure lifts the buildup. No blasting granules off in the process.
- Gutter check. We’re already up there — might as well look and flag anything worth mentioning.
- Final walkthrough. Ground-level check to confirm the streaking’s actually gone.
Most homes take a few hours. Depends on size and honestly, depends on how long the growth’s been sitting there.
Why Pressure Washing Can Damage Your Roof
Okay, this one’s important, so bear with me.
High pressure and asphalt shingles don’t mix. Shingles are coated in protective granules and a pressure washer strips those off in seconds. Once they’re gone — they’re gone. No growing back.
The damage doesn’t always show up right away, which is the annoying part. It shows up months later as a leak, or as a roof that’s suddenly aging way faster than it should.
Soft washing skips that risk entirely. A specialized solution does the actual work — kills algae, moss, lichen, all of it — at low pressure. Roof gets clean. Shingles stay put.
If a company’s offering to pressure wash your roof, that’s a red flag, not a selling point. We won’t do it and honestly, you shouldn’t let anyone else do it either.
Benefits of Professional Roof Cleaning
It looks better, sure. But that’s the smallest part of it.
Cleaning extends shingle life by removing what’s actually eating away at them. That’s real savings — a full roof replacement costs a lot more than a cleaning ever will.
It protects the structure underneath too. Moss and algae hold moisture against the deck and years of that leads to rot most people never notice until it’s a bigger problem.
There’s a small energy angle as well — algae-covered shingles absorb more heat, which can nudge your cooling bill up a bit during Aurora summers. Not huge, but it adds up.
And yeah, it just makes the house look taken care of. Whether you’re staying ten more years or listing it next spring.
How Much Does Roof Cleaning Cost in Aurora?
Depends. Roof size, pitch, how bad the growth already is, how easy the roof is to access — all of it plays into the number.
A steep roof buried in moss takes longer than a low, lightly-streaked one. That difference shows up in the quote, obviously.
We don’t post flat rates because every roof really is different, not just marketing-speak. We do a free on-site look and give you an actual number, not a guess over the phone.
Why Choose Ernest Windows?
Since 2003. Chicagoland, based out of Bartlett — but Aurora, Naperville, Batavia, North Aurora, Oswego, Montgomery and Sugar Grove are all territory we cover regularly.
Customers keep coming back, which tells you more than anything we could say. S. Douglas has had us back year after year for a two-story home. Clara Rutz said the results looked beautiful, mentioned we handled some other cleaning needs too. Taylor Cassidy pointed out we didn’t skip the tricky, hard-to-reach spots — a lot of crews just avoid those.
100% satisfaction guarantee on every job. Something’s off, we come back and fix it. No extra charge, no runaround.
Roof Cleaning FAQs
How often should a roof be cleaned? Every two to three years, for most Aurora homes. Heavily shaded roofs with a lot of tree cover — probably sooner.
Is soft washing safe for all roof types? Safe for asphalt shingles, which is most homes around here. Tile and metal need a slightly different approach — we’ll go over that during the inspection.
Will roof cleaning damage my landscaping? No. We rinse and protect plants and grass before we even start and the cleaning solutions we use break down safely afterward.
Can I just skip cleaning and replace the roof later instead? You could. It’s just the more expensive route. Regular cleaning costs a fraction of what an early roof replacement runs.
Do you clean commercial roofs too? Yes — residential and commercial, all across Aurora and the surrounding towns.
Get Your Free Roof Cleaning Estimate
If your roof’s got streaks, patchy moss, or just that tired, worn-down look — it’s worth a look before it gets worse. Roof cleaning in Aurora, IL is one of those things that’s easy to keep putting off. Right up until it isn’t.
Call 1-800-270-6228 or reach out online. We’ll get you a free, no-pressure estimate, no strings attached.
