Roofing in North Shore

Typical service lives: asphalt shingles 15-30 years, concrete tile 40-60, clay tile and slate 60-100+, metal 40-70, flat membranes (felt, EPDM, TPO) 15-30. Underlayment and flashings usually fail before the covering itself, which is why old roofs leak even with intact tiles.

Dry, settled weather — and before your region's storm or rainy season, not after it starts. Roofers book out weeks or months ahead of peak season, so schedule inspections early; shoulder-season slots are often cheaper and easier to get.

Yes — replacing one slope or section is common after localised storm damage and costs far less than a full reroof. The trade-offs are colour mismatch with weathered existing material and tying new work into old underlayment. It makes most sense when the rest of the roof has meaningful life left.

Often worth it: the access equipment is already up, edge details integrate cleanly, and combined pricing beats two separate jobs. If your gutters are under ten years old and sound, keep them — but have the roofer protect them during tear-off and note their condition in writing.

Missing, cracked or slipped tiles/shingles; granules collecting in gutters; daylight visible in the attic; damp patches or staining on top-floor ceilings; sagging roof lines; and moss holding moisture against the surface. Catching these early usually means a repair instead of a replacement.

Two separate ones: a manufacturer warranty on materials (often 20-50 years, sometimes conditional on certified installation) and the contractor's own workmanship warranty (5-10 years is respectable). Get both in writing and understand what voids them — foot traffic, unventilated attics and pressure washing are common exclusions.

Long-run steel — the most common covering — typically runs NZD $90-$190 per m² installed, putting a small home at $12,000-$28,000 and larger houses at $20,000-$45,000 including scaffolding. Concrete tile and membrane roofs price similarly to slightly higher.

Usually not — replacing the covering like-for-like is exempt work. Consent is needed if you change the roof structure, alter the profile substantially, or switch to a much heavier material. Your roofer or council can confirm in minutes.