Flat and membrane roof repairs in Wellington
Low-slope roofs and decks that drain properly and stay sealed at the seams, outlets and edges.
Flat and low-slope roofs do not shed water the way a pitched roof does, so small faults matter more. Ponding water, blocked outlets and failed seams are the usual causes of leaks.
We inspect the membrane, outlets, upstands and edges, repair what can be repaired, and replace the membrane where it has reached the end of its life.
Signs of a membrane roof problem
- Water ponding after rain
- Blisters, splits or lifted seams in the membrane
- Blocked or undersized outlets and scuppers
- Leaks at upstands, parapets or where the deck meets a wall
- Soft or spongy areas underfoot
Building Code clause E2 requires roofs, including low-slope roofs, to keep external moisture out of the building. (MBIE, Building Code clause E2 External moisture)
Repair or replace
Localised splits and lifted seams can often be repaired. Where the membrane is brittle, blistered across large areas, or the substrate underneath is wet, replacement is the reliable fix. We check the falls and outlets either way, because a new membrane on a deck that ponds will fail again.
How the job works
Call or send the form
Tell us what you have noticed and where. We call back to book a time to look at the roof. If water is coming in now, call rather than using the form.
We inspect and photograph
We get on the roof (or use a drone or ladder where that is safer), photograph what matters, and check the underside where we can reach it.
Written quote with the photos
You get the photos, what we found, and a written price. If repair, restore and replace are all options, we price them side by side.
The work, then proof
We do the job, clean up, and send photos of the finished work so you can see what was done on a roof you cannot easily see yourself.
Flat and Membrane Roofs across the Wellington region
Many Wellington hillside homes have decks over living spaces and low-slope extensions. Those junctions are where we see most membrane leaks.
We work right across Wellington City, and also offer flat and membrane roofs in Lower Hutt, flat and membrane roofs in Upper Hutt, flat and membrane roofs in Porirua, flat and membrane roofs in Kapiti Coast.
Flat and Membrane Roofs: common questions
Can a flat roof be truly flat?
No roof should be perfectly flat. Low-slope roofs need a fall to outlets so water does not pond.
How do you find a leak in a membrane roof?
We inspect seams, upstands and outlets and trace staining inside. Water can travel under membranes, so it takes care.
Do you do decks over bedrooms?
Yes. These need careful detailing at the edges and doors, and we check the whole junction, not just the membrane.
Got a leak or a roof question?
Call now, or send a few details and we will call you back with next steps.