Flat Roofing in Cardiff
Extensions and garages across Cardiff's terraced streets — from Grangetown to Splott — are frequently finished with flat roofs even where the main house is pitched Welsh slate or clay tile, and these flat sections fail in their own distinct way: ponding water, blistered felt, and cracked corners. Getting an extension or garage roof right in EPDM or GRP means finding a roofer who treats flat roofing as its own specialism rather than an afterthought.
Flat roofing in Cardiff covers EPDM, GRP and felt repairs and replacements for the extensions and garages common behind the city's Welsh slate and clay tile terraces. A garage roof typically costs £1,000–£2,000 in EPDM; extension roofs £2,000–£5,000.
Roofing in Cardiff — what local roofers know
Across Cardiff Council's area, from the Victorian bay-fronted terraces of Pontcanna to the rear extensions common in Canton and Heath, flat roofs sit alongside the pitched Welsh slate and clay tile that dominates the city's main roof coverings. Moderate exposure means Cardiff isn't a coastal town battered by driving salt air, but flat roofs are still vulnerable to standing water and wind-driven rain, and named storms including Storm Eunice (2022) and Storm Darragh (2024) have caused real damage to felt and upstands on garages and extensions across postcodes like CF14 and CF10. Older properties in areas such as Whitchurch and Rhiwbina, with original outbuildings and single-storey rear additions, are especially likely to still be running on ageing three-layer felt that's overdue an upgrade to EPDM or GRP.
- Traditional Welsh slate roofs needing like-for-like repair rather than tile substitution
- Wind damage from recent named storms (Storm Eunice) loosening tiles, ridges and flashings
- Older housing stock with original pitched roofs prone to slipped tiles, worn valleys and perished underlay
How it works in Cardiff
- 1 Tell us once. Describe the job and your postcode. It takes under two minutes and there's no phone call to sit through.
- 2 We match you locally. We pass your request to a roofer in our network who covers CF10/CF14 and works on your roof type.
- 3 You get a proper quote. The roofer surveys the roof and quotes in writing before any work begins. You choose whether to go ahead.
Flat Roofing costs in Cardiff
Every job is quoted after a proper look at the roof, since access, materials and condition all change the price. Beware of anyone quoting a fixed figure over the phone. See the Flat Roofing FAQs below, or our roofing costs guide for realistic UK price ranges, and request quotes to get real numbers for your roof in Cardiff.
Looking for flat roofing outside Cardiff? Read about flat roofing nationwide, or see all roofing services in Cardiff.