When Should You Pressure Wash and Seal Interlock in Ottawa?

When to pressure wash interlock

Pressure washing should be done when dirt, moss, algae, or stains start to build up on the surface. In Ottawa, spring is one of the best times to clean interlock after winter salt, debris, and moisture buildup.

• Restore original color and remove winter buildup
• Remove harmful moss and algae before they damage joint sand
• Prepare the surface for resanding and sealing

When to resand interlock

Resanding is needed when the joint sand between pavers begins to wear away. This is a critical step that is often overlooked until pavers start moving.

Applying polymeric sand helps stabilize the surface and prevent future movement. It should always be done after pressure washing so the joints are clean and open.

• Gaps or recessed joints between pavers
• Weed growth pushing up through joints
• Loose or shifting stones after heavy rain

When to seal interlock

Interlock sealing in Ottawa is typically recommended every 2 to 3 years. High traffic areas such as driveways may require more frequent sealing to maintain protection.

Sealing protects against staining, UV fading, and moisture penetration, and it brings out the color in the pavers.

Best time of year in Ottawa

Spring and summer are ideal for pressure washing, resanding, and sealing because the weather allows proper drying and curing. Avoid these services in wet or cold conditions since moisture prevents polymeric sand and sealant from bonding correctly.

Booking early in the season is smart as good contractors fill up quickly once the weather turns.

Benefits of proper timing

Maintaining your interlock at the right time gives better protection from weather and moisture, improved appearance and curb appeal, and a longer lasting surface with fewer emergency repairs.