When should I rebuild vs spot-repair my old Vancouver paver patio?

If more than 30% of your patio has settled, shifted, or shows drainage problems, a full rebuild is typically more cost-effective than extensive spot repairs. However, isolated issues affecting less than 20% of the surface can often be successfully spot-repaired.

Signs You Need a Full Rebuild

Widespread settling across multiple areas indicates base failure — the most common issue with older paver patios in Metro Vancouver. If your patio has multiple low spots where water pools after rain, sections that have dropped 1+ inches, or areas where pavers rock underfoot, the granular base has likely been compromised by Vancouver's persistent rainfall. Clay soil migration into the base (common in Surrey, Richmond, Delta, and Langley) destroys drainage capacity and creates soft, unstable areas that continue spreading.

Drainage problems affecting the entire patio also warrant rebuilding. If water consistently pools on the surface, drains toward your house foundation, or the patio stays wet for days after rainfall, the original installation likely lacks proper slope (minimum 2% away from buildings) or adequate base depth. These are fundamental design issues that spot repairs cannot fix.

Pattern disruption across large areas — where pavers have shifted enough to create uneven joints, height differences between adjacent pavers, or safety hazards — indicates the edge restraints have failed or were never properly installed. Without confined edges, pavers gradually spread outward under traffic loads, especially during Vancouver's wet season when the base is saturated.

When Spot Repairs Work Well

Isolated settling in small areas (10-20 pavers) can be successfully repaired by lifting the affected pavers, adding or removing bedding sand to correct the level, re-compacting, and relaying. This works best when the surrounding pavers are stable and the base underneath appears sound.

Individual cracked or stained pavers are perfect candidates for replacement. Concrete pavers can be individually lifted and replaced without affecting surrounding areas — one of the key advantages of interlock over poured concrete. Keep spare pavers from your original installation if possible, as colour matching older pavers can be challenging due to weathering and manufacturing variations.

Joint sand loss and weed growth between otherwise stable pavers is routine maintenance, not a structural issue. Removing old sand, cleaning joints, and applying fresh polymeric sand every 3-5 years keeps your patio functioning properly and prevents weeds from taking hold.

Metro Vancouver Cost Considerations

Spot repairs typically run $15-25 per square foot including labour to lift pavers, correct base issues, and relay. A full rebuild costs $15-30 per square foot for the entire patio, but includes complete excavation, fresh base material, proper compaction, new edge restraints, and polymeric sand throughout.

The break-even point is around 30-40% of the patio area. If you need to repair more than this, rebuilding becomes cost-competitive while giving you a completely refreshed installation with modern drainage design, proper base depth for Vancouver's climate, and a warranty on the entire project.

Professional Assessment

Have an experienced interlock contractor evaluate your patio before deciding. They can determine whether settling is localized or indicates widespread base failure, assess drainage adequacy, and identify issues like root intrusion or clay contamination that affect long-term performance. Many contractors offer free estimates that include this assessment.

Consider rebuilding if your patio is over 15 years old and showing multiple issues. Older installations often lack geotextile fabric, adequate base depth, or proper polymeric sand — upgrades that dramatically improve performance in Metro Vancouver's wet climate.

Need help finding an interlock contractor to assess your patio? Vancouver Interlock can match you with experienced professionals who understand Vancouver's unique climate challenges and can provide honest guidance on repair versus rebuild decisions.