How do you keep interlock looking new after 5 years in Vancouver?

Keeping interlock looking new after 5 years in Vancouver requires consistent maintenance focused on managing moisture, moss growth, and joint sand erosion — the three biggest challenges in our marine climate. With proper care, quality concrete pavers can look nearly new even after a decade in Metro Vancouver's wet conditions.

The key is understanding that Vancouver's persistent moisture and mild temperatures create ideal conditions for moss, algae, and weed growth that can make even high-quality pavers look neglected within 2-3 years without maintenance. Unlike drier climates where pavers primarily need occasional cleaning, Vancouver installations require proactive moisture management and organic growth control.

Annual cleaning is essential — pressure wash your interlock every spring (April-May) using a surface cleaner attachment to remove moss, algae, dirt, and organic staining that accumulates over Vancouver's wet winter months. Use 1,500-2,500 PSI maximum to avoid surface damage. For stubborn moss growth, apply an iron sulphate-based moss killer 2-3 weeks before pressure washing to kill the moss first, then wash away the dead material. This is particularly important for north-facing installations and areas shaded by trees or buildings where moss thrives.

Joint sand replenishment every 3-5 years is the most critical maintenance task for Vancouver interlock. Our heavy rainfall gradually erodes even high-quality polymeric sand from paver joints. Empty joints allow pavers to shift laterally, permit weed and moss intrusion, and create an unkempt appearance. Sweep out deteriorated sand, clean joints thoroughly, apply fresh polymeric sand (Techniseal, Alliance, or Sakrete), and activate properly with controlled water application. Never skip this step — it's what keeps pavers locked in place and looking professional.

Sealing every 5-7 years enhances colour and provides stain protection, though it's optional for concrete pavers. Clean pavers thoroughly and ensure joints are properly sanded before sealing. Choose a penetrating sealer rather than a film-forming topical sealer for Vancouver's climate — penetrating sealers allow moisture vapor transmission while protecting against stains and enhancing colour depth. Apply sealer only during a guaranteed 24-hour dry window, which typically means May through September in Vancouver.

Immediate stain treatment prevents permanent discoloration. Oil stains from vehicles, rust stains from metal furniture, and organic stains from leaves or berries should be treated within days, not months. Use appropriate cleaners — degreaser for oil, oxalic acid for rust, oxygen bleach for organic stains. The longer stains sit, especially in Vancouver's moisture-retentive environment, the deeper they penetrate and the harder they become to remove.

Edge maintenance prevents the "spreading" look that makes interlock appear old and poorly maintained. Check edge restraints annually and re-spike any that have loosened. Pavers along unrestrained edges (like the far edge of a driveway) will gradually spread outward under traffic loads, creating gaps and an uneven appearance. Proper edge restraint maintenance keeps lines crisp and professional-looking.

Drainage maintenance is critical in Vancouver — keep surface drains clear of debris, ensure proper slope away from buildings is maintained (minimum 2% or 1/4 inch per foot), and address any areas where water pools on the surface. Standing water accelerates moss growth, stains pavers, and can indicate base settlement that needs professional attention.

When to hire professionals: Annual cleaning and joint sand replenishment are reasonable DIY tasks for most homeowners. However, hire a professional for sealing (proper surface prep and application technique are critical), major releveling work (indicates base issues), or if you notice widespread settling or shifting (requires base repair). Attempting to fix structural issues yourself often makes them worse and more expensive to repair properly.

Quality interlock properly maintained can look nearly new after 15-20 years in Vancouver. The investment in regular maintenance — roughly $500-1,500 annually for a typical residential installation — preserves both the appearance and the substantial investment you made in professional hardscaping.

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Find a Interlock & Paver Contractor

Vancouver Interlock connects you with experienced contractors through the https://vancouverconstructionnetwork.com:

• Vancouver Hood Doctors ✓
• Levelone Construction Ltd. ✓
• Terra Siteworks LTD. ✓