Roof Cleaning and Moss Removal Done the Safe Way
Rogue Valley winters leave roofs covered in moss, lichen, and black streaking. We use a low pressure soft wash method that lifts growth off your shingles without blasting away the granules that keep your roof watertight.
Moss does not just look bad. It shortens the life of your roof.
Southern Oregon gives moss everything it wants. Wet winters, shaded north facing slopes, and plenty of tree cover along the valley floor. Once it takes hold, moss creeps under the edge of each shingle and lifts it, and every lifted shingle is an opening for water.
Cleaning a roof before that damage sets in is one of the cheapest maintenance jobs a homeowner can do. Replacing a roof early is one of the most expensive. We treat the growth at the root, rinse the surface gently, and leave your roof looking the way it did the year it went on.
Book a Roof AssessmentLifted and curling shingles
Moss grows thick under the shingle edge and pushes it upward, breaking the seal that keeps rain running off instead of under.
Trapped moisture and rot
A moss mat holds water against the roof deck long after the rain stops, which is where soft spots and interior leaks begin.
Clogged gutters and valleys
Loose moss and debris wash down into valleys and gutters, backing up drainage and sending overflow down your siding and foundation.
Lost curb appeal and value
A green and streaked roof is the first thing a buyer or an appraiser notices, and it makes an otherwise well kept home look neglected.
How we clean a roof
Every job follows the same four steps, whether it is a small ranch home in Phoenix or a steep two story in Ashland.
Inspect
We walk the roof and check pitch, shingle condition, flashing, and problem slopes, then tell you honestly whether cleaning is the right call.
Protect
Landscaping, gutters, downspouts, and any sensitive surfaces around the home get covered and pre rinsed before a drop of solution goes down.
Soft wash
A low pressure treatment is applied across the roof to kill moss, lichen, and algae at the root instead of scraping the surface and taking granules with it.
Clear and rinse
Loose growth and debris are removed, valleys and gutters are cleared, and the property is rinsed down and left clean before we pack up.
Every roof cleaning covers
- Full roof inspection before any work begins
- Moss, lichen, and algae treatment at the root
- Low pressure soft wash that protects granules
- Removal of loose moss, needles, and leaf debris
- Valleys and roof lines cleared of buildup
- Landscaping and siding protected throughout
- Gutter check so drainage is flowing again
- Full site cleanup and a walkthrough with you
Matched to your roof, not one setting for everything
Asphalt Shingle
The most common roof in Medford and the one most often damaged by aggressive washing. Ours stays low pressure from start to finish.
Cedar Shake
Wood holds moisture and stains fast. We use a gentle treatment that clears growth without drying out or splitting the shakes.
Metal Roofing
Streaking, oxidation, and debris in the seams are cleared carefully so the finish and the panel coating stay intact.
Tile and Composite
Tile is heavy but brittle underfoot. We work from the right access points and clean without cracking or shifting a single piece.
Signs your roof is overdue for a cleaning
If you notice two or more of these from the driveway, it is worth having someone up there.
Green patches along the north slope
Shaded slopes go first. Once moss shows there, it spreads across the rest of the roof within a season or two.
Dark streaks running down the shingles
Those vertical black stains are algae feeding on the roof surface, and they do not wash off with rain.
Moss or grit in the gutters
Clumps of green in your downspouts mean the roof is shedding growth and granules at the same time.
Shingle edges lifting or curling
Growth under the shingle is pushing it up. Clean it now and you likely save the shingle instead of replacing it.
It has been three years or more
In this climate most roofs need attention every two to four years depending on tree cover and exposure.
Getting ready to sell
A clean roof removes an easy negotiating point for buyers and makes the whole exterior photograph better.
Roof cleaning across the Rogue Valley
We are based in Medford and cover the surrounding communities. If your town is not listed, call us anyway and we will let you know.
Roof cleaning questions we hear most
Will pressure washing damage my roof?
High pressure will, which is exactly why we do not use it on shingles. Blasting a roof strips the protective granules and can void a manufacturer warranty. We use a low pressure soft wash that treats the growth chemically and rinses gently.
How often should a roof be cleaned in Medford?
Most homes here do well on a two to four year cycle. Roofs under heavy tree cover or on shaded north facing slopes usually need it closer to every two years.
Are the products safe for my plants and pets?
Yes. We pre rinse and cover landscaping before we start, use treatments applied at safe dilution, and rinse everything down afterward. Keep pets indoors while we are working and they can be back out once the area is rinsed and dry.
Do I need to be home during the service?
Not necessarily. As long as we have access to the property and an outdoor water source, we can complete the work and follow up with you afterward. Many customers prefer to be there for the final walkthrough.
How long does a roof cleaning take?
Most single family homes are finished in three to six hours depending on roof size, pitch, and how heavy the moss growth is. We will give you a time estimate with your quote.
Can you clean the gutters at the same time?
Yes, and we recommend it. Roof cleaning sends debris into the gutters, so pairing the two means everything is clear in one visit. We also offer pressure washing, window cleaning, and debris cleanup if you want the whole exterior handled together.
Are you licensed and insured?
Yes. Medford Window Cleaning is fully licensed and insured, so your property is covered from the moment we arrive.
Get your roof back before winter does
Call for a free, no obligation quote on roof cleaning and moss removal anywhere in the Rogue Valley. We will tell you straight whether your roof needs it now or can wait.
