We've seen some things.
After years of exterior cleaning, the Red Moose crew has tackled jobs that made us stop and say, "How did it get THIS bad?" But here's the thing: no matter how dirty, grimy, or downright disgusting a surface looks, there's almost always a way to bring it back to life.
Today, we're pulling back the curtain. We're sharing some of the dirtiest things we've ever cleaned and exactly how we did it. Some of these might make you cringe. Others might make you look at your own property a little differently.
Let's dive in.
1. The Roof That Looked Like It Was Growing a Forest
Picture this: a beautiful home with one major problem. The roof was covered in thick, black streaks. Green moss clung to the shingles. It looked like nature was slowly taking over.
The homeowner thought the roof needed to be replaced. They were ready to spend thousands of dollars on new shingles.
Turns out, all that "damage" was actually alive. Algae, moss, and lichen had made themselves at home over the years.
How We Fixed It:
We used soft washing: a gentle cleaning method that relies on specialized solutions instead of high pressure. This is crucial for roofs because blasting shingles with pressure can cause real damage.
Our cleaning solution killed the algae and moss at the root. Within hours, the roof started looking like new again. No replacement needed.
The homeowner saved a small fortune.
2. The Driveway That Had Given Up
Oil stains. Tire marks. Years of ground-in dirt. This concrete driveway had seen better days: probably decades ago.
The gray concrete had turned almost completely black in spots. The homeowner joked that they'd stopped parking in front of the house because they were embarrassed.
How We Fixed It:
Concrete can handle some serious cleaning power. We brought out our pressure washing equipment for this one.
First, we pre-treated the oil stains with a degreaser. These stains soak deep into concrete, so they need extra attention. Then we pressure washed the entire surface, working in sections to ensure every inch got cleaned.
The transformation was dramatic. That driveway went from embarrassing to impressive in a single afternoon.
3. The Vinyl Siding Covered in Green Slime
Some houses sit in shady spots. Trees block the sun. Moisture hangs in the air. These conditions create the perfect environment for algae and mildew to thrive.
One home we visited had vinyl siding that was more green than white. The north-facing side was the worst. Thick layers of algae covered everything from ground level to the second story.
How We Fixed It:
Vinyl siding needs a careful approach. Too much pressure can crack it or force water behind the panels.
We used soft washing with a solution designed to eliminate organic growth. The cleaning agents did most of the heavy lifting. We applied them evenly, let them work their magic, and then rinsed everything clean with low pressure.
The green disappeared completely. The original color of the siding came back like it had been hiding there the whole time.
4. The Deck That Hadn't Been Touched in 10 Years
Wood decks take a beating. Sun, rain, snow, foot traffic: it all adds up. But when a deck goes a full decade without any cleaning or maintenance? That's when things get interesting.
This particular deck had turned gray and weathered. Black mold spotted the boards. The wood felt slippery and unsafe. The homeowner had stopped using it entirely.
How We Fixed It:
We started with a thorough assessment. The wood was still structurally sound: just incredibly dirty.
Using the right pressure settings (not too high for wood), we cleaned each board carefully. We applied a wood-safe cleaning solution to break down the mold and mildew. The grime lifted away, revealing the natural wood grain underneath.
After drying, that deck was ready for a fresh coat of stain. The homeowner couldn't believe it was the same surface.
5. The Commercial Building Nobody Wanted to Visit
First impressions matter in business. When customers see a dirty storefront, they make assumptions: and not good ones.
We got called to a retail building that had been neglected for years. The sidewalks were stained and sticky. The exterior walls had visible streaks running down them. The whole place looked abandoned, even though businesses were operating inside.
How We Fixed It:
This job required a combination approach.
We pressure washed all the concrete surfaces: sidewalks, parking areas, and the building's foundation. For the walls, we used soft washing to safely remove the buildup without damaging the paint or siding.
The difference was night and day. Business owners inside told us they noticed more foot traffic within weeks of the cleaning.
6. The Gutters Stuffed with Years of Debris
Gutters do important work. They direct water away from your home's foundation. But when they get clogged? Problems start piling up.
One home we serviced had gutters that were completely packed. Leaves, twigs, and decomposed organic matter had created a solid mass. Water was overflowing during every rainstorm, running down the siding and pooling near the foundation.
How We Fixed It:
We cleared everything out by hand first. Scooped out pounds of debris that had turned into something resembling compost.
Then we flushed the gutters and downspouts to make sure water could flow freely. Finally, we cleaned the exterior of the gutters themselves: removing the black streaks that often form from oxidation and runoff.
Those gutters went from dangerous to fully functional.
Why Things Get This Dirty in the First Place
You might wonder how properties reach these extreme conditions. The answer is simple: life gets busy.
It's easy to overlook gradual buildup. Algae grows slowly. Stains accumulate one at a time. By the time you notice, the problem has been developing for years.
That's why regular exterior cleaning prevents bigger headaches down the road. Keeping up with maintenance:
- Extends the life of your roof, siding, and deck
- Protects your investment by preventing permanent damage
- Boosts curb appeal so your property always looks its best
- Improves safety by eliminating slippery surfaces and mold
The Right Method for the Right Surface
Not every cleaning job is the same. That's why we use different techniques depending on what we're cleaning.
Soft washing works best for:
- Roofs
- Vinyl and painted siding
- Delicate surfaces that can't handle high pressure
Pressure washing works best for:
- Concrete driveways and sidewalks
- Brick and stone surfaces
- Areas with heavy staining that need extra power
Using the wrong method can cause damage. Using the right method delivers incredible results.
Your Property Might Be Next
Here's something we've learned after all these years: most homeowners don't realize how dirty their property has become. You see it every day, so the gradual change goes unnoticed.
Then one day, you look at an old photo. Or a neighbor gets their house cleaned. Suddenly, you see what everyone else has been seeing.
The good news? No matter how bad it looks, there's almost always a solution.
Ready to See the Transformation?
If any of these stories sound familiar: if your roof has those black streaks, your driveway looks permanently stained, or your siding has turned green: we can help.
The Red Moose team has seen it all. We know how to handle the dirtiest jobs and deliver results that make homeowners smile.
Check out our gallery to see real before-and-after transformations. When you're ready, reach out to us and let's get your property looking its best.
Your home deserves it.