Balconies and roof terraces in Pencoed

What does a balcony or terrace in Pencoed need?

Balcony membranes in Pencoed wear out like any roof, but faster where they are exposed to foot traffic, furniture and planters. Once the topcoat has worn through or cracked around posts and edges, a full re-waterproofing usually lasts longer than repeated patching.

Pencoed's flat roofs are mostly on low-rise post-war blocks of flats, with plenty on lock-up garage blocks on estates too. Wales averages roughly 1,460 mm of rain a year, among the wettest in Britain, so we design for steady run-off: proper falls, clear outlets and upstands well above the finished roof.

How much does balcony or terrace waterproofing cost in Pencoed?

For Pencoed we use Wales rates: £1,750–£3,000 is the guide for a 12 m² balcony in a liquid-applied system including scaffold, VAT included. The fixed price comes after a free survey for new and replacement roofs.

Which waterproofing system is best for a balcony?

For most small balconies, a liquid-applied membrane is the practical choice, because it is brushed or rolled on and forms one continuous layer around posts, door frames and outlets with no seams to fail. Many systems include a hard-wearing, anti-slip topcoat.

GRP fibreglass gives a rigid, walkable surface and suits balconies left exposed rather than paved. On larger roof terraces under paving or decking, single-ply membranes are common, and mastic asphalt has a long record on concrete terraces and blocks of flats.

The choice also depends on what goes on top. Paving on pedestals protects the membrane, while an exposed balcony needs a system rated for foot traffic in its own right. We specify the build-up at survey.

What's included?

• Strip-out of the failed membrane and deck repairs
• Written workmanship guarantee, with approvals handled where needed
• Free survey of the deck, falls, outlets and door thresholds
• New liquid, GRP, single-ply or asphalt waterproofing

Building regulations in Wales

The Welsh Approved Document L applies. Renovating more than half of a roof over a heated room means upgrading it to around 0.16 W/m²K where feasible, and new extension roofs are built to 0.13 W/m²K. Welsh Government guidance is that most re-roofing needs building control approval, so check whenever more than a quarter of a roof is replaced or repaired. We deal with the application as part of the job. More on the rules.

Which nearby areas do we also cover?

• Bridgend · 4 mi
• Aberkenfig · 4 mi
• Tonyrefail · 5 mi
• Llantrisant · 6 mi
• Tonypandy · 7 mi
• Llantwit Major · 8 mi

Other flat roof work in Pencoed

• Dormer roofs
• Flat roof repairs
• Flat roof replacement
• Warm roof insulation upgrades
• Single-ply membrane roofing
• Emergency leak repairs
• All services in Pencoed