Roof cleaning
Illustrative example. Actual results vary by roof condition and material.
Professional Roof Cleaning
Western Washington's damp climate creates ideal conditions for moss, algae, lichen, and other organic growth to develop on residential roofs. Over time, that buildup can leave a roof looking dark, stained, and neglected.
Silver Lotus Exteriors provides professional roof cleaning using methods selected for the roofing material and condition of your home. Our goal is to remove or treat unwanted organic growth while avoiding unnecessary high pressure on delicate roofing surfaces.
A Roof-Appropriate Approach
Your roof shouldn't be cleaned the same way as a concrete driveway.
For asphalt-shingle roofs and other appropriate roofing materials, we use lower-pressure cleaning and treatment methods rather than relying on aggressive pressure washing. The exact process is determined by the roofing material, amount of moss or organic growth, roof pitch, accessibility, and overall condition.
Roof cleaning may address:
Moss and organic growth
Algae and dark staining
Lichen
Leaves, needles, and loose debris
Buildup in roof valleys and other appropriate areas
We also take appropriate precautions around gutters, siding, landscaping, and other areas surrounding the home.
How Much Does Roof Cleaning Cost?
Every roof is different, so Silver Lotus Exteriors provides personalized estimates rather than one-size-fits-all pricing.
As a general planning guide, a smaller, accessible residential roof with light-to-moderate organic growth may cost approximately $350–$650 to clean or treat. A larger home, steeper or more complex roof, difficult access, or heavier moss and lichen buildup may cost $650–$1,200 or more.
Factors that can affect your estimate include:
Roof size
Roof pitch and number of stories
Roofing material
Amount and type of organic growth
Roof complexity, valleys, dormers, and other features
Accessibility and safety requirements
Additional services requested
These ranges are provided for planning purposes only and are not guaranteed quotes. We'll evaluate your specific property and provide a personalized estimate before work begins.
Combine Your Exterior Services
Roof cleaning is a great opportunity to take care of other exterior maintenance at the same time. Ask about combining your roof service with gutter cleaning, gutter brightening, house washing, or other exterior cleaning services during the same visit.
Request a Free Estimate
Not sure what your roof needs? Tell us a little about your property and the condition of your roof. We'll review your project and provide a free, no-obligation estimate based on your home's specific needs.
Silver Lotus Exteriors
Professional Exterior Cleaning, Gentle on Nature.