Is it worth resurfacing a deteriorating concrete driveway in Fredericton, or is full replacement more cost-effective after 25 years?

After 25 years in Fredericton's freeze-thaw cycles, full replacement is almost always more cost-effective than resurfacing, especially if you're seeing significant cracking, spalling, or settlement issues. While resurfacing costs less upfront ($3-6 per square foot vs. $8-15 for replacement), it's typically a short-term fix that won't address underlying structural problems.

Resurfacing makes sense only if your existing driveway has good structural integrity with just surface wear. This means minimal cracking (hairline cracks only), no spalling or scaling, level surface with no settlement, and solid edges. If your 25-year-old driveway meets these criteria, a quality concrete overlay or polymer-modified resurfacing can add 8-12 years of life for $1,200-3,600 on a typical two-car driveway.

However, most Fredericton driveways from the late 1990s were poured without air entrainment, which is devastating in New Brunswick's climate. Non-air-entrained concrete exposed to our 150+ annual freeze-thaw cycles develops surface scaling, spalling, and structural cracking that resurfacing cannot fix. The overlay will only bond to sound concrete underneath — any loose, spalled, or deteriorated areas will cause the new surface to fail within 2-3 years.

Full replacement becomes the better investment when you have multiple cracks wider than 1/4 inch, surface spalling or scaling, settlement creating low spots that puddle water, crumbling edges, or frost heave damage. A new air-entrained concrete driveway will last 25-40 years in Fredericton conditions versus 5-8 years for resurfacing over compromised concrete. The math works out to $8-15 per square foot for 30+ years of service versus $3-6 per square foot for 5-8 years.

For a typical 500 square foot driveway in Fredericton, resurfacing costs $1,500-3,000 while replacement runs $4,000-7,500. If resurfacing lasts 6 years, you're paying $250-500 per year. If replacement lasts 30 years, you're paying $133-250 per year — better value plus you get a properly reinforced, air-entrained surface that can handle Maritime winters.

The replacement also lets you address underlying issues like inadequate gravel base, poor drainage, or insufficient thickness that contribute to premature failure. Spring thaw in the Fredericton area creates significant soil movement, and a new driveway can include proper base preparation and drainage that prevents future frost heave problems.

Consider professional assessment if you're unsure about your driveway's condition. A concrete contractor can evaluate the structural integrity, test core samples for air entrainment, and provide honest guidance on whether resurfacing is viable or you're better off with replacement that will handle another 25 years of New Brunswick winters.