Portland Homes Deserve More Than One Good Rinse
Cascadia Clean Co. removes moss, algae, and years of grime — then keeps it gone with our annual protection program.
The Portland Moss Problem
Your Home is Fighting Portland's Climate Every Day
Moss isn't just ugly. It locks in moisture against your siding, shingles, and deck boards — accelerating rot, voiding warranties, and quietly cutting years off the life of every surface it touches.
Most homeowners power-wash once every few years when the problem becomes too obvious to ignore. That's like changing your oil twice in a decade and hoping for the best.
- Soft-wash technique — high-pressure where it helps, low-pressure where it protects
- Eco-safe, biodegradable solutions — safe for your garden, your pets, your watershed
- Annual maintenance program — we come back before the moss does
- Fully licensed and insured — protecting your home and ours
What We Do
Expert Exterior Cleaning — Built for the Pacific Northwest
Every surface. Every season. Portland-specific techniques and eco-safe solutions.
Moss & Algae Removal
Our signature service. Soft-wash application breaks down and removes moss, algae, lichen, and black streaks from roofs, siding, and foundations without high-pressure damage.
- Roof moss treatment
- Siding and brick algae removal
- Foundation black streak cleaning
Annual Home Protection Plan
We clean once and schedule regular maintenance visits to prevent regrowth before it becomes a problem. Most Portland homes benefit from 2 treatments per year.
- Full exterior assessment
- Scheduled annual or bi-annual visits
- Priority booking + member pricing
Driveway & Hardscape
Concrete, pavers, brick, and stone surfaces accumulate oil stains, moss, and years of grime. High-pressure surface cleaning restores your driveway, walkways, and patio.
- Concrete and paver driveways
- Patios and walkways
- Retaining walls and steps
Deck & Fence Restoration
Portland rain and UV cycles are brutal on wood. We clean and prepare wood surfaces using appropriate pressure levels to remove mold and staining without splintering or damage.
- Composite and wood decks
- Cedar and wood fencing
- Pre-stain surface prep
Why Cascadia Clean Co.
Not Another Generic Pressure Washer
We built this business specifically for Portland homes — where the climate is relentless and a one-size-fits-all approach leaves money on the table.
Fully Licensed & Insured
Oregon contractor license and full liability coverage on every job. Your home and our crew are protected from first spray to final rinse.
Annual Maintenance Programs
Most Portland homes need treatment twice a year — not once every five. We schedule your visits proactively so moss never gets a foothold again.
Eco-Safe Solutions
Our biodegradable cleaning agents are safe for your garden beds, pets, and the Willamette watershed. Effective on grime. Gentle on everything else.
Soft-Wash Expertise
High pressure strips paint, cracks wood, and voids roofing warranties. Our soft-wash method uses targeted solutions to lift and kill growth — no unnecessary force.
Portland-Local Crew
Born and based in the Pacific Northwest. We know which neighborhoods get hit hardest, which surfaces need extra care, and what your neighbors are dealing with.
5-Star Track Record
Over 500 Portland homes cleaned. Consistent 5-star reviews on Google. We show up on time, communicate clearly, and do not leave until you are satisfied.
What Portland Homeowners Say
500+ Homes. Real Results. Zero Comebacks.
"Our roof had been green with moss for three years. After one soft-wash treatment from Cascadia, it looked brand new. They also pointed out some gutter issues we had no idea about. Signed up for the annual plan."
"I got three quotes. Cascadia was not the cheapest. But they were the only crew who actually explained what they were doing and why — soft-wash vs. pressure, the eco products, the maintenance schedule. Worth every penny."
"Our driveway and back patio looked like they had not been touched in a decade — because they had not. One session and they look better than when we moved in. Professional, on time, and very thorough."
Get a Free Quote
Ready to Stop Fighting the Moss?
Tell us about your home and we will send a free, no-pressure estimate within one business day. Portland and surrounding areas.
- Free estimate — no commitment required
- Response within 1 business day
- Fully licensed and insured crew