Full Exterior Clean
Expert House Washing in Cupertino — Safe Soft-Wash for All Siding Types
Professional house washing in Cupertino, CA — soft-wash exterior removes mold, mildew, and grime from stucco, wood, vinyl, and all siding types. Fully insured.
Cupertino, CA
Cupertino's Santa Cruz Mountain fog keeps home exteriors persistently damp — accelerating mold, mildew, and algae on all siding types. A full soft-wash restores your home's appearance without damaging paint or surfaces..
Cupertino's damp hill-adjacent microclimate is ideal for mold and mildew on exterior siding. Stucco, wood, and fiber-cement homes throughout Rancho Rinconada and Garden Gate show visible green and black staining within 1–2 years. ORS Clean's soft-wash treatment removes it completely without high-pressure damage.
ORS Clean provides professional house washing throughout Cupertino, CA. Every job includes before-and-after photos sent directly to you. Matt responds to every quote request personally within 30 minutes — just text your address to (408) 476-3891.
ORS Clean carries full liability insurance on every job. With 100+ verified five-star reviews across Google, Thumbtack, and HomeAdvisor, we're the trusted choice for exterior cleaning throughout Santa Clara County.
Text (408) 476-3891 with your address and the service you need. Matt uses Google Earth to measure your property and responds with a firm quote within 30 minutes — no appointment needed before you decide.
House washing pricing depends on home size, siding type, story count, and accessibility — every home is different. Rather than publish a number that may not apply to your property, Matt will assess your specific situation and provide a firm quote within 30 minutes. All we need is your address.
Always included: soft-wash application, rinse, and before-and-after photos.
Text Your Address — Free Quote in 30 Min
Cupertino Conditions
Cupertino homes soil differently depending on where they sit. On the wooded west side toward Monta Vista and Montebello, heavy tree shade and oak pollen mean damp, shaded walls that grow green algae and mildew and pick up a pollen film. Across the flatter east side it's more everyday urban dust and traffic film settling into the stucco.
Either way, it doesn't clean itself: the pollen and dust bond to the surface, and the organic growth on the shaded sides is alive and keeps spreading. Homeowners who reach for a pressure washer usually regret it — high pressure forces water into siding and under stucco and strips paint, and the algae returns anyway.
We soft wash to suit the home: low pressure plus a biodegradable cleaner that kills the algae and mildew at the root and dissolves the pollen and dust film, so your Cupertino house stays clean longer. Safe for every common exterior. Text your address and we'll quote it in 30 minutes.
Why ORS Clean
Full liability on every job — you're completely protected.
Before & after photos on every single job.
Not happy? We come back and fix it free.
Biodegradable solutions, safe for pets & plants.
What Cupertino customers say
"Matt was timely with his response, fair with his quote and professional with his work. I had my insurance company tell me I needed to clean the moss off the roof over the garage. Matt gave me a fair quote and did a good job cleaning the roof. He provided the pictures and invoice for proof for me to submit to insurance."SWStephen W.Google Review · South Bay
"I had a fantastic experience with ORS. From the start, Matt's communication was clear and prompt — I knew exactly when to expect him and what the process would be. The cleaning itself was very detailed. Results look brand new."SNSon NguyenGoogle Review · Silicon Valley
"Matt was timely with his response, fair with his quote and professional with his work. He provided the pictures and invoice for proof for me to submit to insurance. Very professional throughout."SWStephen W.Google Review · Silicon Valley
Common questions
Cupertino sits at the base of the Santa Cruz Mountains, which channels morning fog directly onto home exteriors almost daily. That prolonged moisture creates ideal conditions for mold, mildew, and algae on siding and stucco — especially on north-facing and shaded walls. Cupertino homes typically need house washing every 1–2 years to maintain appearance and prevent organic buildup from degrading exterior surfaces.
Pricing depends on home size, siding type, story count, and accessibility — every home is different. Text (408) 476-3891 with your address and Matt will have a firm quote back to you within 30 minutes. No visit required before you decide.
Yes. Soft-wash uses low pressure and biodegradable solutions safe for stucco, wood, vinyl, fiber cement, and painted surfaces.
Yes. ORS Clean serves Cupertino and surrounding areas. Call or text (408) 476-3891 for availability.
Most homes take 2–4 hours depending on size and condition. We give you a time estimate upfront.
Shade keeps the walls damp, which feeds the algae, so a surface rinse regrows fast. Our soft wash applies a detergent that kills it at the root, clearing it properly and keeping it away much longer. On the wooded west side we often suggest a regular interval to stay ahead of it.
For most east-side Cupertino homes, once a year is plenty. Shaded, tree-covered west-side homes grow algae back sooner and sometimes do better on a 9–12 month cycle. We'll give you an honest recommendation based on your exposure when we quote.
More services
Service area
ORS Clean provides house washing throughout the South Bay and surrounding areas.
Tell us what needs cleaning and add a few photos. Matt replies within 30 minutes. No pressure, no obligation.
Military & first responder discount · Fully insured · 100% guaranteed