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The NW Exterior Blog

Practical exterior-cleaning guides for Pacific Northwest homeowners β€” roof moss, pressure washing, pricing and seasonal tips. We add fresh posts regularly to help you protect and beautify your home.

Concrete Care

Bringing Your Concrete Patio Back to Life

Moss, algae and grime make a patio look old before its time. Here is how professional concrete cleaning safely restores your Portland-area patio in an afternoon.

Read more β†’August 10, 2026
House Washing

The Right Way to Clean Vinyl Siding Without Damage

Vinyl feels tough, but the wrong wash drives water behind the panels β€” here is the safe, low-pressure way to clean Portland-area siding without cracks, streaks or fading.

Read more β†’August 7, 2026
Roof Care

How to Safely Clean a Cedar Shake Roof

Cedar shake is delicate β€” never pressure wash it. The wood-safe soft wash method that removes moss and algae without harming your Portland cedar roof.

Read more β†’August 3, 2026
Roof Care

5 Signs Roof Moss Is Damaging Your Home

Moss on a PNW roof is more than an eyesore. Five warning signs the moss on your roof has crossed from cosmetic to costly β€” and what to do about it.

Read more β†’July 24, 2026
Seasonal Tips

The Best Time of Year to Pressure Wash Your Home in Portland

When should you pressure wash in the Portland metro? A local, season-by-season guide to house, roof, driveway and gutter cleaning.

Read more β†’July 22, 2026
Roof Care

What Causes Black Streaks on Your Roof (and How to Remove Them)

Those dark stripes aren’t dirt β€” they’re roof algae. What causes black streaks on Portland roofs, and how to remove them for good.

Read more β†’July 20, 2026
Driveway Care

Removing Oil & Grime: A Guide to Driveway Pressure Washing

How to lift oil stains and ground-in grime from Portland concrete β€” the right degreaser, pressure and finish for a driveway that looks new.

Read more β†’July 17, 2026
House Washing

House Washing: The Fastest Way to Boost Your Curb Appeal

Why Portland siding looks dingy so fast, what a soft wash removes, and how house washing delivers the biggest instant curb-appeal boost.

Read more β†’July 15, 2026
Gutter Care

Why Gutter Cleaning Matters More in Portland's Rainy Climate

Why gutters clog faster in the PNW, what clogs really cost you, and how often to clean them across the Portland metro.

Read more β†’July 10, 2026
Roof Care

How Often Should You Clean Your Roof in the Pacific Northwest?

How often do PNW roofs really need cleaning? A local guide to moss, roof pitch, tree cover and the right timing for a soft wash.

Read more β†’July 1, 2026
Cleaning Methods

Soft Washing vs. Pressure Washing: Which Does Your Home Need?

Which method does each part of your home need? A local guide to soft washing vs. pressure washing β€” and why using the wrong one is costly.

Read more β†’June 29, 2026
Pricing

How Much Does Roof Cleaning Cost in Portland? (2026 Guide)

What Portland-area homeowners actually pay for roof moss removal and soft washing β€” and what drives the price up or down.

Read more β†’June 28, 2026
Roof Care

Why PNW Roofs Grow Moss β€” and How to Stop It

The Pacific Northwest is moss heaven. Here's why your roof keeps growing it and how to keep it clean for good.

Read more β†’June 28, 2026

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