The setting that safely strips grime off a driveway would damage siding, older mortar or painted trim, so we don’t run one pressure level across a whole property. Driveways and walkways get higher-pressure cleaning with a surface cleaner attachment; siding, roofing and masonry get a low-pressure soft wash.
Higher-pressure cleaning with a surface cleaner attachment lifts embedded dirt and oil stains.
Low-pressure soft wash removes algae and mildew without stripping paint or damaging trim.
Pressure matched to the material, whether concrete, stone or interlock.
We check which surfaces need washing and how they're built, then confirm a written price.
Driveways and concrete get higher-pressure cleaning; siding, roofing and masonry get a low-pressure soft wash instead.
Older brick and masonry get gentler technique than newer vinyl or composite siding, not one setting for every property.
We rinse the surface clear of cleaning residue, not just the visible stain.
We work carefully around landscaping, fixtures and anything nearby while we work.
We check which surfaces need washing and how they're built, then confirm a written price.
We choose higher pressure for driveways and concrete, low pressure and cleaning solution for siding and roofing.
We wash the surface and rinse it clear of cleaning residue, not just the visible stain.
We check the finished work with you before we leave.
Capital Wash & Seal provides professional pressure washing throughout Ottawa and the surrounding area. Homeowners and businesses call us for driveways, walkways, siding, patios and building exteriors that have built up dirt, algae, mildew, oil stains or general grime over an Ottawa summer or winter. Pressure washing and power washing are often used interchangeably, and both differ from soft washing, which uses lower pressure and targeted cleaning chemistry for surfaces that higher pressure could damage. We use a surface cleaner attachment and higher pressure on concrete, asphalt and interlock, and switch to low-pressure soft washing on siding, roofing, stucco and painted or masonry exteriors, matching the method to the material rather than running one setting across the whole property. Typical pressure washing jobs in the Ottawa area run about $150 to $850 depending on the size and condition of the area, confirmed for your property in a written quote before work starts.
High pressure is not used on siding or painted surfaces; we use a low-pressure soft wash with the right cleaning solution instead, which cleans effectively without stripping paint or forcing water behind the siding.
Pressure washing uses higher water pressure suited to hard surfaces like concrete and asphalt, while soft washing uses low pressure and cleaning chemistry suited to siding, roofing and more delicate materials.
It can if too much pressure is used, which is why older masonry gets a lower-pressure, more controlled approach rather than the same setting used on a concrete driveway.
Pressure washing with the right surface cleaner attachment lifts most surface oil and grime; deeply set or old stains may need pretreatment, which we can assess when we quote the job.
Most Ottawa driveways and walkways benefit from a wash once or twice a year, and always before sealing, since sealer will not bond properly over dirt or oil residue.
Yes, cleaning the surface first is a standard part of any sealing job we do, since sealer applied over dirt or debris will not bond correctly.