Keystone Roofing & Building covers Southgate and the surrounding area, from quick repairs after a storm to full roof replacements and extensions.
Southgate grew up in the 1930s, so there are plenty of semis with hipped tiled roofs, bay windows and rear extensions with flat roofs that are now due for replacement.
Every job starts with a free inspection and a written, itemised quote. If a repair will do, we’ll quote for a repair.
Common jobs on Southgate houses
- New Roofs & Re-RoofingFull roof replacements in tile or slate, stripped back and rebuilt to current standards.
- Flat RoofingEPDM rubber, GRP fibreglass and torch-on felt for extensions, garages and dormers.
- Porch Canopies & Bay RoofsPorch canopies, bay window roofs and lean-tos rebuilt and re-tiled.
Everything else we do in Southgate
Questions from Southgate
My 1930s roof still has its original tiles. Does it need replacing?
Not necessarily. If the tiles are sound but the felt and battens underneath have failed, we will say so and quote both options.
Can you replace the flat roof on my rear extension?
Yes. We strip the old covering, check and replace the deck where needed, and finish in EPDM rubber or GRP.



