How to Tell If Your Roof Needs Replacing

Your roof is the most important part of your home's weather protection, but most homeowners don't think about it until something goes wrong. The trick is knowing the difference between a roof that needs a repair and one that's past the point of patching.

The first thing to look for is age. Most steel roofs in Otago last between 30 and 50 years depending on the material, coating, and how exposed the site is. If your roof is pushing 40 and you're getting regular leaks, replacement is usually the smarter investment.

Visible rust is another key indicator. Surface rust can often be treated, but if you can see through the steel — or if rust has eaten along the laps and ridges — the structural integrity is compromised. At that point, repairs are a short-term fix at best.

Inside the house, look for water stains on ceilings, damp patches on walls, or a musty smell in the roof space. These can indicate ongoing leaks that may not be obvious from outside.

Sagging or uneven rooflines suggest structural issues with the timber framing underneath. This doesn't always mean a full re-roof, but it does mean the roof needs professional assessment before any other work is done.

If you're unsure, the best move is to get a professional inspection. We'll get up on the roof, check the condition of the steel, flashings, ridges, and timber, and give you an honest assessment of what's needed.