Flat roofs are widely used for home extensions because they provide a practical roofing solution while helping maximise the usable space within the property.
Flat Roofing South Wales provides new extension flat roofing, replacement roofs and extension roof repairs throughout South Wales.
We install EPDM rubber, GRP fibreglass and modern felt roofing systems.
The quality of an extension roof depends on much more than the visible waterproof covering. Correct preparation, drainage, roof edges, flashing and the junction between the extension and original property all play an important part in creating a watertight roof.




Many older home extensions still have traditional flat roofing materials which may now be reaching the end of their useful life. Signs of deterioration can include:
We offer several flat roofing systems rather than attempting to use the same product for every property.
EPDM rubber provides a flexible waterproof membrane. GRP fibreglass creates a strong seamless surface. Modern felt remains a dependable and cost-effective roofing solution.
We can discuss the advantages of each system before you decide.
Not every leaking extension needs a new roof.
Where the problem is confined to a particular area and the remainder of the roof is in good condition, we can carry out targeted repairs.
Whether you are building a new extension or replacing an ageing roof, Flat Roofing South Wales can provide a professional flat roofing solution.
Get a Free QuoteAt Flat Roofing South Wales, we provide professional flat roofing installation, replacement and repair services throughout South Wales, helping homeowners, landlords and businesses maintain watertight and dependable roofs.
Free, no-obligation quotes and fully insured workmanship on every job -- from a single garage roof repair to a complete flat roof replacement.
📞 Call 07868 857692From Indian sandstone-style attention to detail on every job, to garage roofs, extensions, and emergencies, Flat Roofing South Wales can transform and protect your outside space.
Call 07868 857692 Today →EPDM, GRP fibreglass and felt are all suitable -- the right choice depends on your extension, budget and requirements.
This junction is one of the most critical areas on an extension roof -- flashing and detailing problems here are a common cause of leaks.
Yes, replacement is often a good opportunity to upgrade insulation -- we can talk through the options.
With proper installation and materials, an extension flat roof can last 20 years or more, depending on the system used.
Tell us about the job and we'll get back to you — usually the same day.
Prefer to talk? Call 07868 857692.