Flat & Membrane Roof Repairs in Wellington

What's Included in Our Flat Roof Repairs

Flat and low-pitch membrane roofs are common on Wellington's modern homes, extensions, garages and apartments, and when they fail they can leak badly because water has nowhere to run. We repair all the main membrane types, including butynol and EPDM rubber, TPO and PVC single-ply, and torch-on bituminous membranes. Our work covers patching splits and punctures, re-welding or resealing failed seams and laps, repairing around penetrations and upstands, addressing ponding, and renewing perished flashings and outlets.

We diagnose why the membrane failed rather than just covering the symptom, so the repair lasts. Where a membrane has reached the end of its life across the whole roof, we will tell you and quote a re-cover instead of an endless series of patches.

Signs Your Flat Roof Needs Repair

• Water staining or dripping on the ceiling directly below a flat section
• Pooled or ponding water that sits for days after rain
• Visible splits, blisters, bubbles or cracking in the membrane
• Lifting or open seams and laps where sheets join
• Perished or lifting flashings at upstands, parapets and outlets
• Blocked or undersized outlets causing water to back up

Our Flat Roof Repair Process

1. Inspect: We locate every split, seam failure, ponding area and flashing fault.
2. Diagnose: We work out why the membrane failed, from age to poor falls to blocked outlets.
3. Repair: We patch, weld or reseal using the method suited to your membrane type.
4. Improve drainage: Where ponding is the cause, we address outlets and falls where possible.

Membrane Options Explained

Different membranes need different repair methods, which is why using a roofer familiar with each matters. Butynol and EPDM are durable rubber membranes repaired with compatible patches and adhesives. TPO and PVC are heat-welded single-ply systems, so seams are re-welded rather than glued. Torch-on bituminous membranes are repaired with compatible bitumen layers. Using the wrong product on a membrane, a common cause of failed DIY patches, simply will not bond and the leak returns. We identify your membrane and repair it correctly.

Why Ponding Is a Wellington Problem

Flat roofs are only ever nearly flat: they rely on a slight fall to drain. On Wellington's exposed sites, heavy, wind-driven downpours overwhelm undersized or blocked outlets, and any low spot holds water that works away at seams and flashings until it finds a way in. Standing water is one of the leading causes of premature membrane failure. Part of a lasting flat-roof repair is making sure water actually gets off the roof, so we always check outlets, falls and overflows, not just the visible split.

Flat Roof Repair Pricing

Repairs are priced on the membrane type, the number and size of the faults, access, and whether drainage needs attention. A single split or seam is an affordable, quick repair, while widespread blistering or a membrane at the end of its life may call for a re-cover. We inspect, explain what has failed and why, and give you a clear written quote for the right fix.