Pressure Washing in San Mateo

Common products are sodium hypochlorite (bleach) solutions for organic growth, degreasers for oil, and biocides for moss and algae. Used properly they are rinsed off and diluted, but they can harm plants, pets, and ponds during application. Ask the pro how they protect garden beds and where the runoff drains — dirty water should not go into surface-water drains in many jurisdictions.

A proper quote lists: each surface and its approximate area, the method per surface (high pressure vs soft wash), pre-treatments or chemicals used, weed and moss removal, rinsing and tidy-up, and whether resealing or re-sanding is included. It should also state who supplies water and power, and what happens if rain forces a reschedule.

Driveway cleaning in San Mateo is usually priced by area and condition. A standard single-car driveway sits at the bottom of the local range; a large or heavily stained double driveway with weed growth and oil marks can cost two to three times more. Ask whether resealing or re-sanding block paving joints is included — that is often a separate line item.

Look for local San Mateo companies with recent photo evidence of before/after work on your surface type, public liability insurance, and itemised quotes. Compare at least two or three quotes on the same scope. Be wary of door-knockers offering same-day deals — legitimate operators are usually booked days ahead in peak season.

A crew with proper equipment typically charges ₱300-₱700 per hour or quotes per job: roughly ₱1,000-₱4,000 for a driveway and garage, ₱3,000-₱12,000 for a full house exterior depending on size. Metro Manila prices are the highest; provincial rates can be 30-40% lower.

The start of the dry season (December-January) gives the longest-lasting results. Washing during the wet season still works but mould and algae on shaded walls can return within 4-8 weeks unless an algaecide treatment is applied.