Deck & Patio Cleaning Done Right

Most single-family house washes in San Jose run between $350 and $700 depending on square footage, stories and how much organic growth is present. Driveways typically start around $200. We give flat quotes up front — no hourly surprises.

High pressure is not. That is why we soft wash: low pressure plus the right detergent kills algae and mildew at the root without forcing water behind stucco or cracking roof tile.

Yes. We use eco-friendly, biodegradable products and pre-soak and rinse landscaping before and after every job. Pets can be back outside as soon as surfaces dry.

Golden State Pressure Washing is licensed, bonded, fully insured and a BBB Accredited Business. Certificates are available on request.

Yes — 10% off for Military and Senior Citizens, and 10% off for New Customers. Discounts cannot be combined.

In Santa Clara County most homes benefit from a house wash every 12 to 18 months, and roofs every 2 to 3 years. Shaded and tree-covered lots need it more often.

Pressure washing uses high PSI and water volume (GPM) to physically blast dirt off hard surfaces like concrete. Soft washing uses under 100 PSI plus a downstreamed mix of sodium hypochlorite, algaecide and surfactants to kill algae, moss and lichen at the root. Stucco, siding and roofs get soft washed; concrete and pavers get surface cleaned.

Not with pressure. ARMA (Asphalt Roofing Manufacturers Association) guidance calls for a no-pressure chemical treatment, which is exactly what we use. High pressure strips granules from composition shingles and cracks concrete tile.

It can. High pressure drives water behind the stucco and can chip the finish coat. We soft wash stucco at low pressure with biodegradable surfactants so nothing is forced behind the wall.

Late spring through early fall is ideal for house and roof washing, and right after the first rains is the best time for driveways. We work year-round in Santa Clara County — winter is often the fastest to schedule.

Those streaks are gloeocapsa magma, an algae that feeds on the limestone filler in shingles. Shaded, tree-covered lots in Willow Glen, Cambrian Park and Los Gatos hold moisture longer, which accelerates moss and lichen growth as well.

Call 669-232-4157 or send photos and we respond within 24 hours, usually the same day, with a flat written price.

San Jose plus Santa Clara, Sunnyvale, Campbell, Cupertino, Gilroy, Los Altos, Los Gatos, Milpitas, Monte Sereno, Morgan Hill, Mountain View, Palo Alto, Saratoga and Alviso.