Hudson River humidity and older, steeply pitched roofs make Rensselaer homes prone to black algae streaking. We treat it with a shingle-safe soft wash, not high pressure.
Serving
Rensselaer, NY
Roof Washing in Rensselaer
Rensselaer's older housing stock — much of it built before or shortly after WWII on hilly streets rising up from the Hudson River waterfront — tends to have steeply pitched roofs that stay shaded and damp for long stretches, especially on the north-facing slopes overlooking the river toward Albany.
Combine that with the humidity that rolls off the Hudson daily and settles into low-lying streets near Broadway and Partition Street, and you get ideal conditions for gloeocapsa magma, the black algae responsible for the streaking you see on roofs throughout Fort Crailo, Riverside, and the hillside blocks near Forbes Avenue.
Older Rensselaer roofs, some of which have been re-shingled multiple times over the decades, can't take the abuse of high-pressure washing without losing granules or working shingles loose at the edges. Our ARMA-approved soft-wash approach applies cleaning solution at low pressure from the ground or ladder, killing the algae without ever stepping foot on your roof deck.
Local Conditions
Riverfront humidity, hillside shade patterns, and an older housing stock with roofs that have seen decades of New York winters all combine to make Rensselaer roofs particularly prone to algae streaking.
Daily humidity rolling off the river keeps roof decks damp well into the afternoon, especially on north-facing slopes.
Streets rising from the waterfront toward Forbes Avenue create shadow patterns from neighboring homes that keep certain roof sections perpetually damp.
Many Rensselaer roofs are older installations that can't handle high-pressure cleaning without granule loss or shingle damage.
Pre-war construction often used steeper roof pitches — we reach every peak safely from the ground, no walking on aging shingles.
Why It Matters
Our soft-wash process is gentle enough for Rensselaer's aging roof stock, avoiding the granule loss that high pressure causes.
We kill gloeocapsa magma at the cellular level so streaking stays gone for years, not just a few weeks after a surface rinse.
We apply and rinse from the ground or ladder — critical for older Rensselaer roofs that shouldn't bear the weight of a technician walking the deck.
Regular soft washing slows granule loss and extends the usable life of a roof that may already be decades old.
See Us In Action
This is what we do every day across the Capital Region. Real homes, real crews, real results. No stock photos, no gimmicks — just a clean job done right.
Our Process
We assess roof age, pitch, and streak severity before giving a firm price — important for Rensselaer's older housing stock.
Professional cleaning solution is applied from the ground or ladder, focused on streaked and algae-heavy north-facing slopes.
A gentle rinse clears dead algae and residue, and we walk the property with you to confirm streak-free results.
Real Results
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AfterWhat Customers Say
“I just want to thank Capital Pro for doing such a phenomenal job power washing my house. It's like I have a new house! I would recommend them to anyone. And the workers are there to please you. Cause they care!”
Kathy Valason
Google Review · a month ago
“The guys did a great job and the house looks beautiful. My sister drove by and said the same thing — it looks beautiful. They were so nice to talk to and deal with. I have recommended them to my family and friends.”
Leslie Kaufman
Google Review · 3 weeks ago
“In a state of bereavement we reached out and got an earlier date. When we returned from funeral proceedings the house was impeccable. Even areas we had no time to prep for were done. Nice work for sure. Call them — you won't be disappointed!”
Islah Umar
Google Review · 3 weeks ago
“Capital Pro is a wonderful company! Luis and Miller came to my house today and soft washed the exterior and it looks like a brand new house!”
Bonnie Delaney
Google Review · 4 days ago
“Just had my home pressure washed and I am very pleased with the outcome. I have an older home with original siding. Miller took his time and was sure to cover everything.”
Lori Barnett
Google Review · a week ago
“Excellent job cleaning and sealing our stamped concrete patio. Professional and pleasant to deal with. I would recommend Capital Pro to get the job done right!”
Rosemary Trusso
Google Review · a month ago
“I highly recommend Capital Pro Pressure Washing! Communication, professionalism, the house and window cleaning were all outstanding.”
Carol Molino
Google Review · 2 months ago
“This company did a fantastic job at power washing our home! Luis was great at communicating and scheduling. Him and his team were extremely professional.”
Karissa Desofi
Google Review · a month ago
“Can't say enough good things! From the moment the team showed up, the crew was friendly, professional, and just easy to work with. They cleaned our pavers and everything looked amazing.”
Charles Ellis
Google Review · 2 months ago
“Excellent cleaning job. The siding, decks, and front porch are all refreshed. It is looking like a new house.”
Mark Younger
Google Review · a month ago
“Our siding was looking dull and had green algae on the north side — it was embarrassing! Luis and his team came out and made the entire house look brand new.”
Nikii Narváez
Google Review · 11 months ago
“Very happy with the work Luis and his team did. Communication was great. Very professional. Fair pricing. We would definitely recommend Capital Pro.”
Ronni Edwards
Google Review · a month ago
“Very professional, great service, and great contact regarding when they would come. My house and windows are sparkling. Highly recommend for anyone looking for power washing.”
Linda Hayen
Google Review · a week ago
“We had a great experience with Capital Pro Pressure Washing. The team was very professional, pleasant to work with, and offered fair pricing. Our house came out looking great.”
Tony Felt
Google Review · 10 hours ago
“Capital Pro Pressure Washing did an excellent job washing our home. We have had it washed before but the job Capital Pro did far surpassed what was done previously.”
Sil Young
Google Review · a week ago
“They did an excellent job washing my house. Very knowledgeable and friendly to work with. I would highly recommend them.”
Michael Worden
Google Review · a month ago
“This company is great! We just had our house pressure washed. The crew was friendly, efficient and neat. The job wasn't finished until they got every spot.”
Pamela DeMarco
Google Review · 2 months ago
“This company did a great job taking extra care not to hurt my tulips. Highly recommend for their excellence and cost. Thank you Capital Pro!”
Colleen Malloy
Google Review · 2 months ago
“Great communication, showed up right on schedule, house came out looking better than I thought was possible. Also was done for a great price! Will definitely be using Luis again!”
Dana Bowen
Google Review · 9 months ago
“Capital Pro is a wonderful company! Luis and Miller came to my house today and soft washed the exterior and it looks like a brand new house!”
Bonnie Delaney
Google Review · 4 days ago
“Just had my home pressure washed and I am very pleased with the outcome. I have an older home with original siding. Miller took his time and was sure to cover everything.”
Lori Barnett
Google Review · a week ago
“Excellent job cleaning and sealing our stamped concrete patio. Professional and pleasant to deal with. I would recommend Capital Pro to get the job done right!”
Rosemary Trusso
Google Review · a month ago
“I highly recommend Capital Pro Pressure Washing! Communication, professionalism, the house and window cleaning were all outstanding.”
Carol Molino
Google Review · 2 months ago
“This company did a fantastic job at power washing our home! Luis was great at communicating and scheduling. Him and his team were extremely professional.”
Karissa Desofi
Google Review · a month ago
“Can't say enough good things! From the moment the team showed up, the crew was friendly, professional, and just easy to work with. They cleaned our pavers and everything looked amazing.”
Charles Ellis
Google Review · 2 months ago
“Excellent cleaning job. The siding, decks, and front porch are all refreshed. It is looking like a new house.”
Mark Younger
Google Review · a month ago
“Our siding was looking dull and had green algae on the north side — it was embarrassing! Luis and his team came out and made the entire house look brand new.”
Nikii Narváez
Google Review · 11 months ago
“Very happy with the work Luis and his team did. Communication was great. Very professional. Fair pricing. We would definitely recommend Capital Pro.”
Ronni Edwards
Google Review · a month ago
“Very professional, great service, and great contact regarding when they would come. My house and windows are sparkling. Highly recommend for anyone looking for power washing.”
Linda Hayen
Google Review · a week ago
“We had a great experience with Capital Pro Pressure Washing. The team was very professional, pleasant to work with, and offered fair pricing. Our house came out looking great.”
Tony Felt
Google Review · 10 hours ago
“Capital Pro Pressure Washing did an excellent job washing our home. We have had it washed before but the job Capital Pro did far surpassed what was done previously.”
Sil Young
Google Review · a week ago
“They did an excellent job washing my house. Very knowledgeable and friendly to work with. I would highly recommend them.”
Michael Worden
Google Review · a month ago
“This company is great! We just had our house pressure washed. The crew was friendly, efficient and neat. The job wasn't finished until they got every spot.”
Pamela DeMarco
Google Review · 2 months ago
“This company did a great job taking extra care not to hurt my tulips. Highly recommend for their excellence and cost. Thank you Capital Pro!”
Colleen Malloy
Google Review · 2 months ago
“Great communication, showed up right on schedule, house came out looking better than I thought was possible. Also was done for a great price! Will definitely be using Luis again!”
Dana Bowen
Google Review · 9 months ago
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