Flat Roof Repairs
Flat Roof Repairs Cape Town
Leaking flat roofs repaired properly. We find the source of the leak, fix ponding, outlets, screeds and failed membranes, and leave your flat roof sealed against the Cape winter.
Flat Roof Specialists
Stop Flat Roof Leaks at the Source
Flat roofs do not shed water as quickly as pitched roofs, so small defects turn into leaks fast. Blocked outlets cause ponding, screeds crack, parapet flashings lift and old membranes split at the joints. Patching the visible spot rarely solves the problem for long.
Qualispray inspects the whole flat roof, traces where water is actually getting in and repairs the cause. That can be a targeted repair, a new section of membrane or a full re-cover when the existing system has reached the end of its life. We repair concrete slab roofs, flat roofs over garages and extensions, balconies used as roofs and flat commercial roofs. For pitched roofs, see our roof repairs Cape Town page.
What's included
- Full flat roof inspection and leak tracing
- Clearing and resealing roof outlets
- Screed repairs to fix ponding water
- Parapet, flashing and upstand repairs
- Membrane patching or section replacement
- Protective reflective top coat
Common Flat Roof Problems
Flat Roof Problems We Repair
Most flat roof leaks come from a handful of common failures. These are the problems we find and fix most often on Cape Town properties.
Ponding Water
Water that sits on a flat roof after rain breaks down membranes and finds every weak point. We correct the falls with screed repairs and make sure water drains to the outlets.
Blocked and Failed Outlets
Leaves, sand and debris block outlets and downpipes, and the seal around the outlet often fails. We clear, reseal and detail outlets so water leaves the roof quickly.
Cracked Screeds and Slabs
Movement and temperature changes crack screeds and concrete slabs, letting water track into the ceiling below. Cracks are opened, filled and sealed before the roof is recoated.
Failed Membranes and Flashings
Old torch-on and liquid membranes blister, split and lift at laps, parapets and upstands. We repair or replace the failed sections and detail flashings properly so they stay watertight.
Pricing
What Affects the Cost of Flat Roof Repairs?
The cost of flat roof repairs depends on the size of the roof, the cause of the leak and whether the existing membrane can be repaired or needs replacing. A blocked outlet or a single failed lap is a small job. A roof with widespread ponding and a perished membrane needs a larger repair.
We inspect the roof, show you what we found and give you a fixed, itemised quote with clear options. Read our signs your roof needs attention before winter guide for early warning signs.
Signs Your Flat Roof Needs Repair
- Water stains or damp patches on ceilings
- Water still lying on the roof days after rain
- Blisters, bubbles or splits in the membrane
- Cracks in the screed or parapet walls
- Blocked outlets and overflowing downpipes
- Peeling paint on walls below the roof
Why Qualispray
Why Choose Qualispray for Flat Roof Repairs
We Find the Real Cause
Leak tracing across the whole roof, not just a patch over the stain on your ceiling.
Repair or Replace, Honestly
If a repair will last we repair it. If the membrane is finished, we tell you and quote properly.
Workmanship Backed by Guarantee
Proper detailing at outlets, laps and parapets, with our workmanship guarantee on the job.
How It Works
Our Simple 4-Step Process
01
Free Assessment
02
Detailed Quote
03
Expert Workmanship
04
Final Inspection
Areas We Serve
Serving Cape Town & the Western Cape
Qualispray repairs flat roofs across Cape Town, including Killarney Gardens, Milnerton, Table View, Durbanville, Bellville, Parow, Claremont and Somerset West. If your suburb isn’t listed below, get in touch. We quote throughout the Western Cape.
Northern Suburbs
- Brackenfell
- Bellville
- Durbanville
- Kraaifontein
- Kuils River
- Parow & Goodwood
- Plattekloof
Blaauwberg & West Coast
- Table View
- Blouberg
- Milnerton
- Parklands
- Melkbosstrand
- Century City
Southern Suburbs & City
- Claremont
- Rondebosch
- Constantia
- Wynberg
- City Bowl
- Atlantic Seaboard
Helderberg & Winelands
- Somerset West
- Strand
- Gordon's Bay
- Stellenbosch
- Paarl
- Wellington
FAQ
Frequently Asked Questions
The most common causes are ponding water, blocked outlets, cracked screeds and membranes that have split or lifted at joints, parapets and upstands. We trace the actual source before repairing.
It depends on the size of the roof and the cause of the leak. We inspect the roof and give you a fixed, itemised quote, often with a repair option and a full re-cover option.
Often, yes. If the membrane is still largely sound, targeted repairs at outlets, laps and cracks can solve the leak. If the membrane has perished across the roof, a re-cover is better value long term.
We correct the falls using screed repairs so water drains to the outlets, and make sure the outlets themselves are clear and correctly detailed.
Emergency leak repairs can be done between rain spells. Larger membrane work needs dry conditions, so we schedule it around the weather.
Yes. We repair flat roofs on offices, shops, warehouses and complexes, and can phase work to suit tenants.
A properly detailed repair on a sound roof lasts for years. Regular outlet cleaning and a reflective top coat help extend the life of the whole roof.
Get a Free Flat Roof Inspection
Free flat roof inspections and repair quotes across Cape Town and the Western Cape.