When it comes to maintaining the appearance and safety of your property, the condition of your surfaces plays a critical role.
Is your roof looking worn, stained, or covered in moss? Keenwick is here to help! With over 20 years of experience, we are Maryland’s trusted provider of roof washing services, restoring roofs to their original beauty while protecting their long-term health. Whether you’re dealing with black streaks, algae, moss or debris buildup, our team delivers safe and effective results that keep your roof looking great and performing its best.With our specialized techniques and state-of-the-art equipment, we offer professional solutions for house power washing in Maryland, tailored to meet your specific needs.
Your roof is constantly exposed to rain, snow, dirt, and organic growth that can weaken its structure over time. At Keenwick, we use advanced soft washing techniques — a low-pressure, eco-friendly method that removes dirt, algae, moss, and mold without damaging shingles. If you’re searching for “roof washing near me”, Keenwick is your local solution for professional service and lasting results.
Black streaks and stains are often caused by Gloeocapsa Magma, a type of algae common in Maryland’s humid climate. This algae feeds on the limestone filler in asphalt shingles, slowly breaking them down while leaving unsightly black streaks across your roof.
If left untreated, Gloeocapsa Magma doesn’t just reduce curb appeal — it can weaken shingles, trap moisture, and shorten the life of your roof. Our roof washing services are specifically designed to eliminate this algae at the root using soft washing, which removes stains safely without damaging your shingles.
Eliminate harmful growth and contaminants that break down shingles.
A clean roof instantly enhances the look and value of your home.
Keep drainage systems clear and reduce the risk of leaks.
Clean surfaces reflect heat more efficiently, improving energy performance.
We stand behind our work with a 2-Year Clean Guarantee. Every roof washing service includes gutter bagging to protect your home and landscaping.
Yes, roof washing is a safe and effective method when performed by professionals. At Keenwick, we use the right pressure and eco-friendly solutions to ensure your roof is cleaned without causing any damage.
We recommend washing your roof every 2-5 years to maintain its appearance and structural integrity. However, the frequency may vary based on the local climate and the type of contaminants on your roof.
We take great care to protect your landscaping and surrounding areas during the roof- washing process. Our methods are environmentally friendly, and we ensure that any runoff is safely managed.
Trusted Window Cleaning & Power Washing Pros
