Exterior Cleaning Company | Professional Powerwashing Maintenance|San Ramon

At Professional Powerwashing & Maintenance, we provide soft wash roof cleaning services in Castro Valley, CA for homeowners and property managers who want a clean roof without risking damage.
If you’re facing HOA or property maintenance notices or your roof has black streaks, algae staining, moss growth, our low-pressure soft wash process removes organic buildup at the source—without cracking tiles, stripping shingle granules, or shortening roof lifespan.
We service asphalt shingle, tile, and composite roofs throughout Castro Valley, and most roof cleanings are completed in a single visit. For fast availability and clear pricing, call 925-633-4342 to get a quote today.
We approach roof cleaning as preventative maintenance, not a cosmetic shortcut. Every Castro Valley property we service is evaluated for roof material, pitch, drainage, and surrounding landscaping to ensure the process delivers lasting results while protecting your home and investment.
Castro Valley property owners trust Professional Powerwashing & Maintenance because we focus on roof preservation, honest communication, and consistent outcomes. We never apply high pressure to roofing materials, and we don’t rush services at the expense of surface safety.
Local roof challenges in Castro Valley often include:
Our soft wash system neutralizes organic growth at its root rather than simply washing away surface stains. This prevents rapid regrowth and extends the time between cleanings.
Homeowners choose us because we offer:


Our soft wash roof cleaning services in Castro Valley, CA are customized for the roofing materials and environmental exposure common throughout the East Bay hills.
Our services include:
Castro Valley roofs often show uneven staining due to tree coverage and roof orientation. We adjust application methods to ensure consistent treatment across the entire roof surface.
We never use rotating nozzles or high-PSI equipment on roofs. Our results come from chemistry and dwell time—not force.
A homeowner near Lake Chabot Road contacted us after noticing persistent roof staining despite previous cleanings. Our inspection revealed that pressure washing had failed to address underlying algae. Using soft washing, we safely treated the growth without further wear—restoring appearance and protecting the roof long-term.



Tell us what you need, and we’ll provide a fast, no-obligation estimate with clear, upfront pricing.

Choose a time that works best for you — our friendly, trained technicians will arrive on schedule.

We restore the beauty of your property with safe, professional cleaning — leaving you with spotless, long-lasting results.

EXCELLENT Based on 108 reviews Posted on Dan CafaroTrustindex verifies that the original source of the review is Google. Very good job on our driveway. Very professional and courteous personnel. I recommend them.Posted on Jason BelliniTrustindex verifies that the original source of the review is Google. Thoroughly cleaned, and without leaving a mess or any residue! Well done. There is a smell of bleach afterwards, which doesn’t bother me, but it’s worth mentioning.Posted on Billy BabbTrustindex verifies that the original source of the review is Google. Had some work done recently and the service beyond the work provided by Anthony was great would highly recommend to anyone looking !Posted on Christina JohnsonTrustindex verifies that the original source of the review is Google. After the heavy storms we had in December my backyard looked a hot mess - between all the mud build up and tree debris, I was over it! Anthony to the rescue! He powerwashed everything making my backyard presentable again. He was very friendly, and even made sure my dog was ok when he noticed the machine was scaring her. Little things like that stand out! I highly recommend Anthony and Professional Powerwashing Maintenance Services!Posted on Mansoor NiaziTrustindex verifies that the original source of the review is Google. Great service and amazing work. I will be using their service again and will recommend them to others.Posted on ashley johnsonTrustindex verifies that the original source of the review is Google. My parents got work done in their backyard. They were so happy with the results they FaceTimed me to show me! They said the young man that helped them was so quick and professional. I believe they said his name was Anthony. Definitely recommend to anyone!Posted on Daisy OrtizTrustindex verifies that the original source of the review is Google. Anthony did a great job pressure washing my backyard. He got rid of all the moss that had built up from the water puddling and made everything look so much better. He was friendly, professional, and made sure I was happy with the results before he left. I’d definitely recommend Professional Power Washing & Property Maintenance.
Soft wash roof cleaning is a method that uses low-pressure water mixed with biodegradable detergents to safely remove algae, mold, mildew, and other contaminants from roofs without damaging the shingles.
Yes, when performed using proper low-pressure methods.
Yes, soft washing is gentler and safer for roofs, especially for asphalt shingles. Pressure washing can damage the roof surface, while soft washing effectively removes contaminants without causing harm.
It is recommended to soft wash your roof every 2-3 years to prevent the buildup of algae, moss, and dirt, which can deteriorate roofing materials over time.
Yes, soft washing kills and removes algae, mold, and mildew from your roof, preventing further growth and helping maintain the roof’s longevity.
Yes, professional soft wash services like ours take precautions to protect your landscaping by watering plants before cleaning and ensuring no harmful chemicals are used.