Capital Wash & Seal: Professional Pressure Washing & Sealing in Ottawa, ON
Driveway, interlock, concrete and asphalt sealing, plus soft-wash pressure washing for homes and businesses across Ottawa and the surrounding area. Every price is confirmed in a written quote before work starts.
Sealing from $0.35 per sq ft
Pressure washing from $150 per job
Free written quotes
Get a free quote
Tell us about the surface and we will follow up with pricing.
No obligation. We reply within one business day.
Why Ottawa Homeowners and Businesses Call Us
Free written quotes
Every job starts with a clear, written quote before any work begins.
Residential and commercial capability
We take on single driveways and larger commercial lots and buildings.
Property protected on site
Our crews work carefully around gardens, landscaping and fixtures.
Straightforward communication
You hear from us at the estimate, before the job starts, and again when it's done.
Service across the Ottawa area
From central neighbourhoods to the surrounding towns and villages.
Sealing matched to the surface
Concrete, asphalt, interlock, wood and stone each get their own approach, not one generic treatment.
Our Residential Pressure Washing & Sealing Services in Ottawa
Every service below is available for homes across Ottawa. Pick one from the menu to see full details, or request a quote and tell us what you need.
Concrete, asphalt & interlock
Driveway Sealing
Sealing that protects your driveway through Ottawa winters and road salt.
Joint sand & surface protection
Interlock & Paver Sealing
Polymeric sand and sealer applied correctly, so joints stay locked and colours stay true.
Wood protection
Deck Sealing & Staining
Semi-transparent or solid stain to protect wood decking from sun, rain and snow.
Wood fences
Fence Staining & Sealing
Cleaning and staining that keeps fence lines looking finished, not weathered.
Stone & concrete patios
Patio Sealing
Sealer chosen for the material, so the patio sheds water and salt instead of absorbing it.
Low-pressure soft wash
House Washing
Algae, mildew and grime removed from siding without stripping paint or damaging trim.
Areas We Serve Across Ottawa
A sample of the communities we work in regularly – see the full list on our Service Areas page.
West Ottawa
Kanata
Established subdivisions and nearby tech-corridor commercial lots.
South Ottawa
Barrhaven
One of Ottawa's fastest-growing suburbs, mostly newer driveways.
East Ottawa
Orléans
A large east-end community with decades of interlock and concrete driveways.
West Ottawa
Nepean
A wide mix of housing ages, from mid-century to newer builds.
West Ottawa
Stittsville
Historic village core alongside rapid new subdivision growth.
South Ottawa
Manotick
A heritage village on the Rideau River with older stone and brick surfaces.
Our main service
Driveway Sealing: Why It Matters in Ottawa
Ottawa’s winters put real stress on an unsealed driveway. Repeated freeze-thaw cycles push moisture into hairline cracks in concrete and asphalt, and the calcium and de-icing salt used on Ottawa roads and driveways accelerates spalling, pitting and staining once it’s absorbed into an unprotected surface. Interlocking pavers face a related problem: without sealer, the polymeric sand in the joints washes and erodes faster, which lets weeds and ants in and lets the pavers shift. A proper seal coat is a barrier layer, not a coating for appearance alone. On concrete and asphalt we clean the surface, address existing cracks where needed, and apply a sealer suited to the material. On interlock we re-sand the joints before sealing so the sealer locks the sand in place instead of trapping loose debris underneath. Most residential driveways are resealed every two to three years to keep that protection current.
Problems We Solve
Freeze-thaw cracking
Water gets into small cracks in concrete or asphalt, freezes, expands, and widens the crack. Sealing keeps water from getting in in the first place.
Salt staining and spalling
De-icing salt used across Ottawa driveways and walkways pits and discolours unsealed concrete and interlock. A sealed surface sheds salt instead of absorbing it.
Algae, mildew and moss
Shaded siding, roofs and north-facing walkways collect algae and mildew over an Ottawa summer. A low-pressure soft wash removes it without damaging the surface underneath.
Recent Projects Across Ottawa
Real jobs from our crews. Tap a photo to see it full size.
Recent project in KanataRecent project in CumberlandRecent project in VanierRecent project in Riverside SouthRecent project in RichmondRecent project in MetcalfeRecent project in NepeanRecent project in Orléans
How Much Does Pressure Washing & Sealing Cost in Ottawa, ON?
Sealing is typically priced per square foot and pressure washing by the job, based on surface area, condition and access. These are typical Ottawa-area ranges; every job gets a written quote before work starts.
Most popular
Driveway, Concrete & Asphalt Sealing
$0.35-$0.65/sq ft
Surface cleaning, crack treatment where needed, sealer application
On every job, roughly half the cost is labour and equipment time and half is materials (sealer, stain, joint sand) plus site prep such as pressure washing before sealing, crack treatment, and cleanup. Larger surfaces, harder-to-reach areas, and surfaces that need extra prep before sealing will land toward the higher end of these ranges. We confirm the exact price in writing before any work starts.
What Ottawa Customers Say About Our Pressure Washing & Sealing Services
★★★★★
5/5
Our driveway looked completely refreshed after the pressure washing and sealing. The team arrived on time, explained the process clearly, and left the area spotless.
★★★★★
5/5
We hired them to clean and seal our interlock patio, and the difference was impressive. The crew worked carefully around the garden and paid close attention to every detail.
★★★★★
5/5
The team removed years of dirt from our walkway and gave the surface a clean, even finish. Communication was excellent from the initial estimate through completion.
★★★★★
5/5
Professional and dependable service. They answered all our questions about the sealer, completed the work as scheduled, and treated our property with respect.
Capital Wash & Seal provides professional residential and commercial pressure washing and sealing throughout Ottawa and the surrounding area, including driveway sealing, interlock and paver sealing, concrete and asphalt sealing, deck and fence staining, patio sealing, house washing, roof cleaning and commercial pressure washing.
We work on concrete, asphalt, interlocking pavers, natural stone, wood decking and fencing, and painted or masonry building exteriors, using pressure washing, low-pressure soft washing, and sealers matched to each material rather than one generic treatment for every surface. Whether it's a residential driveway due for its two-to-three-year reseal, an interlock patio that needs new joint sand and a sealer coat, or a commercial parking lot that needs a scheduled wash, our crews adjust the approach to the surface and the job.
Capital Wash & Seal exists to protect the surfaces our neighbours have already invested in, from a single driveway to a full commercial property, and to do that work carefully, communicate clearly, and confirm pricing in writing before we start.
Pressure Washing & Sealing FAQs
How often should a driveway or patio be resealed?
Most concrete, asphalt and interlock surfaces in the Ottawa area are resealed every two to three years, depending on traffic, sun exposure and how much winter salt the surface sees.
Do you pressure wash before sealing?
Yes. Sealer applied over dirt, oil or loose debris will not bond properly, so every sealing job starts with cleaning the surface and letting it dry.
Is pressure washing safe for siding, roofs and painted surfaces?
We match the method to the surface. Delicate surfaces like roofing, painted siding and stucco get a low-pressure soft wash instead of high-pressure cleaning, which avoids stripping paint or damaging the material.
Do you serve both residential and commercial properties?
Yes, we work with homeowners as well as property managers, retail plazas and commercial lots across Ottawa.
How do you quote a job?
We look at the surface, size and condition, then send a written quote with the price confirmed before any work begins.
What time of year is best for sealing in Ottawa?
Sealing generally needs dry weather and above-freezing temperatures to cure properly, so most sealing work happens from late spring through fall.
Does an existing warranty or workmanship guarantee apply to the work?
Any workmanship details are set out in your written quote, job by job.
Get a Free Quote for Your Property
Tell us about your driveway, patio, deck, fence or building exterior and we will follow up with pricing.
