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The Regent Wash Blog

Exterior cleaning, explained.

What is actually on your siding, what will not come out, and how to tell whether a company knows the difference.

Brick and light blue twin home in Havertown, PA after washing, with a clean cream walkway curving to the porch Pressure Washing Pressure washing in Delaware County, PA: 2026 costs, methods and how to hire the right pro13 min readWritten by Juelz J. What the job should cost here in 2026, which method is safe for your siding, and the ten questions that tell you who is worth hiring. Read the post The same Hatboro, PA gutter partway through gutter brightening, bright white on the left and still streaked on the right Gutter Brightening Why your gutters are still black after a house wash7 min readWritten by Juelz J. The siding is clean. The gutters still have black stripes. Here is why the wash missed them, and what actually takes them off. Read the post The same Havertown, PA composite deck and stairs after soft washing, the boards clean and even Pressure Washing Soft washing vs pressure washing, and how to tell which you need7 min readWritten by Juelz J. A new pressure washer makes you want to clean everything you own. Here is what should get force, and what should get soap. Read the post White vinyl siding streaked with green algae and gray mildew before soft washing House Washing What is actually growing on your siding7 min readWritten by Juelz J. Every house has one side nobody talks about. The green on it is not dirt, and that changes how it has to be cleaned. Read the post Red brick paver patio in Havertown, PA after pressure washing, the brick bright and the joints clear Patio Washing Your flagstone is probably in color7 min readWritten by Juelz J. Most gray stone patios are not gray at all. They are wearing a coat of grime, and the color is still under there. Read the post The Hatboro, PA concrete walkway and driveway after washing, an even light gray Driveway Washing Zebra stripes on a driveway, and why they stick around7 min readWritten by Juelz J. It looked great while it was wet. Then it dried into a giant barcode. Why striped concrete happens, and how to avoid it. Read the post Washed white sided home in Hatboro, PA with black shutters, brick entry and a clean concrete walkway House Washing How often should a Delaware County home be washed?7 min readWritten by Juelz J. Every spring, the same promise: this is the year we wash the house. Here is how often it really needs doing, and how to tell. Read the post Before and after patio washing of a flagstone patio in Havertown, PA, showing years of grime removed and the natural stone color restored Patio Washing Flagstone Patio Cleaning in Havertown, PA: Bringing Hidden Color Back to Stone7 min readWritten by Juelz J. A grimy, faded flagstone patio in Havertown was hiding rich reds, greens, and blues that came back to life after one low-pressure cleaning. Read the post Before and after soft washing of a composite deck with white railings on a Havertown, PA home by Regent Wash Deck Washing Composite Deck Cleaning in Havertown, PA: How to Get Rid of Black Mold Stains7 min readWritten by Juelz J. A Havertown homeowner's composite deck had gone from warm gray-brown to blotchy and dark in just a couple of seasons, and the fix had nothing to do with a pressure washer. Read the post Before and after gutter brightening on a Hatboro, PA home by Regent Wash Gutter Brightening Gutter Brightening in Hatboro, PA: A Streak-Free Before and After7 min readWritten by Juelz J. Those black stripes running down your gutters are not wear and tear. See how we lifted years of tiger-striping from a Hatboro home in a single visit. Read the post

New here? Pick the part of the house that is bothering you. Every post is written for homeowners in plain words, and every real job in them comes with the photos to prove it.

Siding and house washing

What is actually growing on your siding, why a hose will not fix it, and how often a house here needs washing. Start with the green wall, then the schedule. The service itself is on our house soft washing page.

Gutters and oxidation

Why gutters stay striped after a house wash, and what those black lines really are. The Hatboro posts show the work partway through. The service itself is on our gutter brightening and oxidation removal page.

Driveways and concrete

Zebra stripes, surface cleaners and why an evenly cleaned slab looks the way it does. The service itself is on our driveway and concrete cleaning page.

Patios and stone

Why gray flagstone is usually colorful stone under grime, and how a Havertown patio got its color back. If your patio is around a pool, the same rules apply, and the rinse water stays out of the pool. The service itself is on our paver and patio cleaning page.

Decks and the right method

Soft washing against pressure washing, and a composite deck in Havertown that was cleaned the gentle way. Read these before you rent a pressure washer. The service itself is on our deck and fence cleaning page.

Good To Know

The questions behind the posts.

What is the difference between pressure washing and soft washing?
Pressure washing cleans with mechanical force and is right for concrete, masonry and hardscape. Soft washing cleans with a cleaning solution at low pressure and is right for siding, stucco, wood and anything delicate. Most homes need both, on different surfaces.
How often should I get my house washed?
Once a year is right for most Delaware County homes. A house under heavy tree cover, or with a wall that never fully dries, may want it every eight to twelve months.
Why doesn't a house wash take the streaks off?
Because they are not organic. House-wash chemistry targets algae and mildew, and gutter stripes are oxidized metal and bonded grime. They need a different product and hand agitation.
What causes zebra stripes on a driveway, and can you fix them?
Stripes are the pattern left when a slab is cleaned freehand with a wand, one arc at a time. The fix is cleaning the whole slab again with a surface cleaner so every inch gets the same pressure. It evens out.
My flagstone looks permanently stained. Is it?
Usually not. What reads as staining on flagstone is nearly always an organic layer sitting on top of the stone rather than in it. Real staining exists, but it is much rarer than it looks.
Can you clean my composite deck safely?
Yes, and it needs the gentler method rather than the stronger one. High pressure permanently scars composite decking and can void the board warranty, so composite gets a soft wash, agitation and a rinse.
Is gutter brightening the same as gutter cleaning?
No, and they are often confused. Gutter cleaning empties the inside, the leaves and debris, so water can flow. Brightening treats the outside face so it stops looking streaked. This service is the outside.

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