Roof Moss Removal in Medford & the Rogue Valley

We clear heavy moss by hand, then a state-licensed soft-wash treatment kills the rest at the root, following the process shingle manufacturers (ARMA) recommend.

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Shawn Maclauchlan
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Very professional job was done in a timely matter. Seems to have the expertise to take care of this sort of stuff is very pleased.
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Jane Connor profile picture
Jane Connor
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London cleaned my roof and gutter , he did a great job and cleaned up after himself . Very polite and informative on what he did and why .
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Anika Geyer profile picture
Anika Geyer
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For many years London has done incredible work on the exterior of our home. His roof moss removal system is second to none. We have complete trust and confidence in his work; always communicates with knowledge and clarity, easy to work with, and Jackie is so flexible in working with our schedule. We value their commitment to high standards and customer satisfaction. Highly recommend!!
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wendy korman profile picture
wendy korman
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London did such a thorough job in January of 2025, and I haven't seen any moss since!
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Lynn Cataldo profile picture
Lynn Cataldo
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London did an excellent job on our roof. He was efficient and is an excellent communicator as he works. I highly recommend this service!
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Diane Berschauer profile picture
Diane Berschauer
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London provided an excellent service, Recently cleaning and treating my tile roof home. He was on time, clean, orderly, and explained everything. I wouldn’t hesitate to refer others to his service.
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chris james
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Fast, reliable service!! No complaints, they did a great job, I would highly recommend them!
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ODA Pesticide License #AG-L1067538CPA • Insured for $2MM • Local Owner-Operator • No Pressure Washing 

Why Moss Is a Problem

Diagram showing how roof moss lifts asphalt shingles and allows water to reach the underlayment and plywood decking

The Asphalt Roofing Manufacturers Association (ARMA) warns that moss can cause shingle edges to “lift or curl” and, in severe cases, contribute to roof-deck moisture damage and leaks.

Oregon State University Extension similarly warns that moss can “lift shingles and allow water to penetrate and damage underlying layers.”

Our Four-Step Process

Heavy moss growth in the keyways of an asphalt shingle roof in Medford, Oregon

1. Inspect & Protect

We inspect the roof and map where the growth is heaviest. Before anything is applied, we pre-wet and cover the landscaping below.

Asphalt shingle roof after loose moss has been cleared by hand, before chemical treatment

2. Clear the Loose Moss

Remove the loose moss debris by hand, and clear anything that got in the gutters. No harsh scrubbing, no pressure washing, no damage.

Low-pressure soft-wash treatment being applied to a mossy asphalt shingle roof

3. Apply the Solution

A low-pressure soft-wash application — applied by an ODA-licensed commercial pesticide applicator — kills moss, lichen, and algae at the root.

Asphalt shingle roof clear of moss after soft-wash treatment and natural weathering

4. Let Time Finish It

The moss dies within days, and over the following months, normal rainfall carries the dead growth off your roof. No scraping, no shingle damage.

About Us

We’re London and Jackie — a husband-and-wife team, licensed, insured, and local.

London spent more than a decade cleaning exteriors across the Rogue Valley before starting Pacific to do one thing exceptionally well: remove roof moss without the pressure-washing damage that wrecks shingles.

London Young of Pacific Roof Moss Specialists in Medford, Oregon

London
Owner
Over a decade on Rogue Valley roofs; quotes your job and does the treatment himself.

Jackie Young of Pacific Roof Moss Specialists in Medford, Oregon

Jackie
Admin
Your first point of contact; answers the phone and books your job.

Interior of a custom-built soft-wash van showing hose reels, manifolds, and control panel

This Is Our Van

Most setups aren’t built for this. Ours is.

  • Metered chemical injection — the mix is measured, not guessed
  • Dedicated manifolds and buffer tanks
  • Strength matched to your roof, not one setting for every house
  • Controlled application — we know where the product goes

Why Work With Us

Two year guarantee

2 Year Guarantee

Moss returns, we re-treat free.

No pressure washing roofs

No pressure washing

It strips the granules that protect your shingles

Plants protected during treatment

Plants Protected

Overspray controlled, contact neutralized and rinsed.

ODA licensed applicator

ODA-licensed

Oregon Department of Agriculture licensed applicator

Before and After Gallery

Asphalt shingle roof in Ashland, Oregon covered in heavy moss growth before treatment

Before

Heavily wooded area leading to thick moss.

Same Ashland roof 90 days after soft-wash moss treatment, moss cleared by rainfall

After

Same roof, 90 days after soft-wash treatment in Ashland. Winter rain carried the dead moss off on its own.

Moss growing along the shingle courses of a roof in Eagle Point, Oregon before treatment

Before

Steep shingles near a tree that fed moss.

Same Eagle Point roof after soft-wash moss treatment, shingles clear of moss

After

This was 6 months after the original treatment.

Serving Medford and the Rogue Valley

We treat roofs throughout Jackson and Josephine County, including Medford, Ashland, Central Point, Jacksonville, Talent, Phoenix, Eagle Point, White City, Gold Hill, Rogue River, Shady Cove, and Grants Pass.

Not sure if you’re in our area? Call and ask — we’ll tell you straight.

FAQ

Will the treatment damage my roof?

No. We apply at low pressure, which is what asphalt shingle manufacturers recommend. Pressure washing and scrubbing are what strip granules and shorten roof life.

The moss dies within days and turns brown. Rainfall carries it off over the following two to four months. If you’re expecting a roof that looks new the afternoon we leave, we’re not the right fit — nobody can do that without damaging your shingles.

We control overspray, wet down nearby plants before we start, and neutralize and rinse anything that gets contact. Keep pets indoors during the visit and for a few hours after.

No, as long as we have access to the roof and an outdoor water spigot.

Most Rogue Valley roofs need treatment every three to five years, depending on shade and tree cover. North-facing slopes come back faster.

Every roof is different — pitch, square footage, how much growth. Quotes are free and we’ll give you several options. 

Get a Free Quote

Tell us about your roof and we’ll get back to you same day.

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Jackie of Pacific Roof Moss Specialists meeting with a homeowner in Medford