Standard pressure washing is too aggressive for most siding and can drive water into seams and window frames. Soft washing instead uses a biodegradable cleaning solution at low pressure to loosen algae, mold and mildew, then a light rinse carries it away.
A biodegradable solution at low pressure loosens algae and mold without the risk of standard high-pressure washing.
Standard pressure washing can drive water into seams, outlets and window frames. Soft washing avoids that risk.
A north-facing wall often needs a different dwell time and solution strength than a wall in full sun.
Low-pressure application matched to vinyl, stucco, brick or painted wood, so the surface is cleaned, not damaged.
Plants, garden beds and outdoor fixtures are covered or rinsed clear of cleaning solution before we finish.
You know the scope and price before any work begins.
We walk you through the process and answer questions about the solution we use.
We check the siding material and how heavy the buildup is, then confirm a written price.
We apply a biodegradable solution at low pressure and let it dwell on algae and mildew.
We rinse the solution away at low pressure, protecting caulking, trim and older siding.
We check the finished exterior with you before we leave.
Capital Wash & Seal provides professional house washing (soft washing) throughout Ottawa and the surrounding area. Homeowners call us when siding has gone from white or beige to streaked with green or black algae, when mildew has taken hold on shaded walls, or when years of dust, pollen and cobwebs have dulled the exterior. We soft wash vinyl, aluminum, stucco, brick and painted wood siding using low-pressure equipment and a cleaning solution formulated to break down organic growth at the root, rather than blasting it off with high PSI that can crack siding, strip paint, or force water behind trim and soffits. Ottawa's mix of cold winters and humid summers gives algae and mildew plenty of opportunity to take hold on shaded walls, which is why exterior washing is a normal part of home maintenance here, not a sign of neglect.
No. Soft washing uses low pressure and a cleaning solution designed to lift algae and mildew without the force that can crack siding or strip paint. It's chosen specifically as the safer alternative to high-pressure washing for exterior walls.
Most homes benefit from a wash every one to two years, though shaded or north-facing walls that collect more algae and mildew may need attention sooner.
We use a biodegradable solution and take care to protect landscaping during the wash, rinsing plants and garden beds as part of the job.
House washing (soft washing) uses low pressure and cleaning chemistry suited to siding. Standard pressure washing uses higher mechanical force, which is appropriate for driveways and concrete but too aggressive for most siding materials.
Most house washing jobs run in the range of $150 to $650 depending on the size of the home and how much buildup there is. Every job is confirmed with a written quote first.
Yes, we adjust pressure and solution for each material, so a house with mixed siding gets one visit instead of separate treatments for every surface type.