What pressure setting is safe for Vancouver pavers?

Use 1,500-2,500 PSI maximum for cleaning concrete pavers in Metro Vancouver, with a rotating surface cleaner attachment to prevent striping and damage.

Most residential pressure washers in the 1,500-2,500 PSI range are perfectly safe for cleaning concrete pavers when used properly. This pressure range effectively removes the moss, algae, dirt, and organic staining that builds up on Vancouver pavers due to our persistent moisture and humidity levels, without damaging the paver surface or joint sand.

The rotating surface cleaner attachment is crucial — it distributes the pressure evenly across the surface and prevents the concentrated stream from a standard wand tip from creating permanent stripes or gouges in the paver surface. Surface cleaners also contain the spray, preventing joint sand from being blasted out of the joints. Without a surface cleaner, even 1,500 PSI can create visible damage patterns on pavers.

Never exceed 2,500 PSI on concrete pavers. Higher pressure settings (3,000+ PSI) can etch the paver surface, expose aggregate, create permanent texture changes, and blast polymeric sand out of joints. This is especially problematic with textured or tumbled pavers that have a more delicate surface finish. Natural stone pavers like flagstone or slate are even more pressure-sensitive and should be cleaned at 1,200-1,800 PSI maximum.

Metro Vancouver's moss problem requires strategic cleaning timing. The best time to pressure wash pavers is late spring (April-May) after the worst of the moss growth season but before summer sealing projects. Moss is easier to remove when it's actively growing rather than dormant. Apply a moss killer (iron sulphate or zinc sulphate based) 2-3 days before pressure washing for maximum effectiveness — the moss will darken and release more easily.

Protect your polymeric sand during cleaning. Even proper pressure washing removes some joint sand, especially if the polymeric sand is old or was improperly activated. Plan to replenish joint sand after pressure washing and before applying any sealer. This is actually good maintenance timing — clean the pavers, top up the joint sand, then seal if desired.

When to hire a professional: Consider professional cleaning for large areas (over 500 sq ft), heavily stained pavers, or if you're planning to seal afterward. Professional cleaners have commercial-grade surface cleaners, experience with different paver types, and can apply specialized cleaners for oil stains, efflorescence, or stubborn organic growth that plain water pressure won't remove.

Need help finding an interlock contractor for cleaning, maintenance, or repairs? Vancouver Interlock can match you with experienced professionals who understand Metro Vancouver's unique paver care requirements.