Can a paver repair contractor guarantee their work won't settle again in Vancouver's wet soil?

No reputable paver repair contractor should guarantee that settling won't recur without first addressing the underlying cause of the original failure. In Metro Vancouver's wet climate with clay-heavy soils, settling is almost always caused by inadequate drainage, insufficient base depth, or poor compaction — and these root causes must be corrected for any repair to be permanent.

Why Settling Happens in Metro Vancouver

Paver settling in our region is primarily driven by water infiltration into an inadequate or compromised base system. Vancouver's 1,200mm+ annual rainfall saturates poorly designed bases, softens clay subgrade soils, and causes differential settling where some areas sink while others remain stable. When contractors originally installed pavers with insufficient base depth (4 inches instead of the required 6-8 inches for patios, or 8 inches instead of 10-12 inches for driveways), or skipped geotextile fabric over clay soil, or failed to establish proper drainage, the installation is destined to settle again unless these fundamental issues are corrected.

Clay soils prevalent across Surrey, Richmond, Delta, and Langley compound the problem because clay swells when wet and shrinks when dry, creating an unstable subgrade. Without proper separation fabric and adequate granular base thickness, clay migrates upward into the base material over time, destroying its drainage capacity and load-bearing properties.

What Proper Repair Involves

A quality paver repair in Metro Vancouver requires lifting the affected pavers, excavating down to stable subgrade, installing geotextile fabric if missing, rebuilding the base to proper depth with correct granular material, compacting in controlled lifts, re-screeding bedding sand, and relaying pavers with fresh polymeric sand. This process typically costs $8-15 per square foot depending on access and the extent of base reconstruction required.

Surface-only repairs that simply lift pavers, add sand underneath, and relay them will fail again within 1-2 years if the underlying drainage and base issues aren't corrected. Reputable contractors will explain exactly what caused the original settling and what specific steps they're taking to prevent recurrence.

Realistic Warranties

Experienced contractors typically offer 1-2 year warranties on properly executed repairs that include base reconstruction. However, they cannot control external factors like new drainage problems from roof runoff, irrigation system leaks, or tree root intrusion that might cause future settling in different areas. A contractor who guarantees no settling "ever" without understanding your specific drainage conditions and soil type is making promises they cannot keep.

When to Hire a Professional

Any settling repair larger than 20-30 square feet requires professional assessment of the base system, proper excavation equipment, and plate compaction to rebuild the foundation correctly. This is especially critical for driveway repairs where vehicle loads demand a robust base system.

Need help finding an interlock repair specialist? Vancouver Interlock can match you with experienced contractors who understand Metro Vancouver's unique soil and drainage challenges.