Is it cheaper to repair or replace an old interlock driveway?

The decision between repairing or replacing an old interlock driveway depends on the extent of damage, but repair is typically 50-70% less expensive when the base is still sound. For most Metro Vancouver driveways showing settling, weed growth, or missing joint sand, repair runs $3,000-$8,000 compared to $12,000-$25,000 for complete replacement.

When Repair Makes Financial Sense

If your driveway has isolated sunken areas, widespread weed growth, faded pavers, or missing joint sand but the majority of pavers are still level and stable, repair is usually the smart choice. Common repair work includes lifting and relevelling settled sections ($15-$25 per sq ft), removing all old joint sand and applying fresh polymeric sand ($3-$6 per sq ft), pressure washing and sealing ($3-$7 per sq ft), and replacing a percentage of cracked or stained pavers ($8-$15 per sq ft including labour).

The key factor is whether the original base preparation was adequate. If your driveway was built with proper 10-12 inch compacted gravel base and only has surface-level issues, repair can extend its life by 10-15 years. Metro Vancouver's minimal freeze-thaw cycles mean that properly built interlock driveways can last 25-30 years with periodic maintenance, making repair a worthwhile investment on structurally sound installations.

When Replacement Is Necessary

Complete replacement becomes necessary when the base has failed, typically evidenced by widespread differential settling (some areas much lower than others), pavers that rock when stepped on, or water pooling in multiple areas. In Metro Vancouver's wet climate, inadequate original base depth is the most common cause of driveway failure. Driveways built with only 4-6 inches of base material instead of the required 10-12 inches will eventually fail as the base saturates and loses stability during heavy winter rains.

Other replacement indicators include pavers that have shifted so extensively that the surface is no longer driveable, widespread paver cracking from vehicle loads on an inadequate base, or drainage problems that direct water toward your foundation. If more than 40% of your driveway needs relevelling, replacement often makes more economic sense than extensive repair.

Metro Vancouver Cost Realities

A typical 600 sq ft driveway repair addressing settling, joint sand replacement, and sealing runs $4,500-$7,500. Complete replacement of the same driveway runs $15,000-$24,000 including removal and disposal of existing pavers, new excavation, proper base preparation, 80mm pavers rated for vehicular traffic, and polymeric sand installation.

However, factor in that a properly rebuilt driveway should last 25+ years with minimal maintenance, while repairs on a fundamentally flawed installation may only buy you 3-5 years before more extensive problems develop. Clay-heavy soils common in Surrey, Richmond, Delta, and Langley are particularly unforgiving of inadequate base preparation.

Making the Decision

Have an experienced interlock contractor assess your driveway's base condition by lifting pavers in the worst areas to examine the base material underneath. If the base is still well-compacted, drains freely, and shows no signs of contamination with clay or organic matter, repair is likely your best option. If the base is saturated, contaminated, or was never adequate for driveway loads, replacement will ultimately be more cost-effective than throwing money at repeated repairs.

When to Hire a Professional

Both major repairs and replacement require professional expertise. Driveway relevelling involves proper base assessment, precision screeding of bedding sand, and edge restraint work that requires professional tools and experience. DIY driveway work almost always leads to recurring problems because achieving proper compaction and drainage on vehicular surfaces requires specialized equipment and knowledge.

Need help finding an interlock contractor to assess your driveway? Vancouver Interlock can match you with experienced professionals for free estimates on both repair and replacement options.

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Find a Interlock & Paver Contractor

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

• Vancouver Hood Doctors ✓
• Scandia paving Ltd ✓
• Effervescent construction Ltd ✓