Ontario’s pool renovation market has expanded significantly as the 1990s–2000s pool installation boom enters its third decade. Pools installed 20–30 years ago are now due for major work — replastering, equipment upgrades, structural assessment, and modernization.
When Does a Pool Need Renovation?
Finish deterioration: Pool plaster or fiberglass gel coat has a 10–20 year lifespan. Signs of deterioration: rough texture, staining, etching, delamination. Replastering cost (average pool): $8,000–$15,000 for standard plaster; $18,000–$35,000 for pebble finish.
Equipment replacement: Pool pumps, filters, and heaters have 10–15 year lifespans. Modern variable-speed pumps reduce energy costs by 60–80% versus single-speed pumps. Equipment upgrade package: $3,000–$8,000.
Deck deterioration: Concrete pool decks crack and spall from Ontario freeze-thaw cycling. Interlock or flagstone pool deck replacement: $25–$45/sq ft installed — and provides a dramatically better aesthetic than the original concrete.
Safety updates: Pool barrier (fence) requirements in Ontario may have changed since original installation. The Ontario Building Code requires a fence with self-closing, self-latching gates completely enclosing the pool area. Old fences that no longer meet current standards require replacement.
Permit Requirements for Pool Renovation
Major pool renovations (structural changes, deck replacement, new equipment location) typically require building permits. Check with your municipality before beginning work.
Note: Ontario’s pool enclosure requirements apply to ALL pools, including those installed before current requirements — there is no grandfather clause for barrier compliance.
Inground vs Above-Ground Renovation
Above-ground pools over 20 years old are generally not worth significant renovation investment. The liner can be replaced ($1,500–$3,500), but structural components have limited remaining life.
Inground concrete (gunite/shotcrete) pools are worth comprehensive renovation — replastering, equipment upgrade, and deck renewal can add 20+ years of service life.
Pool Renovation Resources
Ontario homeowners discuss pool renovation projects, contractor recommendations, and permit experiences at home.renovation.reviews. LF Builders handles the exterior components — pool deck hardscaping, interlock surrounds, and flagstone coping.