Keystone Roofing & Building covers Barnet and the surrounding area, from quick repairs after a storm to full roof replacements and extensions.
Around High Barnet you get everything from Victorian cottages near the high street to interwar semis and bungalows further out. We re-roof, repair chimneys and replace flat roofs on extensions and garages across the area.
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 Barnet houses
- New Roofs & Re-RoofingFull roof replacements in tile or slate, stripped back and rebuilt to current standards.
- Chimney RepairsRepointing, flaunching, rebuilds and removals — plus the leaks chimneys cause.
- Flat RoofingEPDM rubber, GRP fibreglass and torch-on felt for extensions, garages and dormers.
Everything else we do in Barnet
Questions from Barnet
Do you work in New Barnet and East Barnet too?
Yes. We cover High Barnet, New Barnet, East Barnet and Arkley — EN4 and EN5.
My garage has an old felt roof. Is it worth replacing?
If it is blistered, ponding or leaking, yes. A new deck and EPDM rubber covering will outlast several patch repairs.



