Flat RoofingContractors

Roofs we replace and build

Balconies and roof terraces in Brecon

We waterproof balconies and roof terraces on houses and flats in Brecon, from small first-floor balconies to larger terraces with paving. Each quote sets out the build-up, the threshold detail and the drainage in writing. Our vetted roofing teams, working under S&K, carry out the work and leave the finish relaid.

London roof terrace with porcelain paving on pedestals over a waterproofed flat roof and a glass balustradeComputer-generated example image

Brecon at a glance

Postcode districts
LD3
Population
about 8,250 (GeoNames)
Council area
Powys County Council
Building approval
Powys County Council building control, or a registered building control approver
Nearest main town
Merthyr Tydfil, about 14 miles
Guide price region
Wales (−8% on West Midlands rates)

What does a balcony or terrace in Brecon need?

Owners of flats in Brecon sometimes find that a neighbour's balcony is leaking into their home. Where a balcony serves one flat but sits over another, the repair needs proper waterproofing and drainage, and a clear written specification helps everyone involved agree the work.

In and around Brecon, flat roofs are typically found on 1960s and 1970s link-detached houses with flat-roofed garages and porches, and on terraced streets with flat-roofed rear kitchens and bathrooms. 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 Brecon?

Guide price in Brecon: £1,750–£3,000 for a 12 m² balcony in a liquid-applied system including scaffold, including VAT at Wales rates. The fixed price comes after a free survey for new and replacement roofs.

JobGuide price inc VAT
Balcony (12 m²), liquid-applied, scaffold£1,750–£3,000
Single garage (18 m²), EPDM rubber£1,450–£2,600
Extension (20 m²), GRP, new deck + insulation£2,750–£4,950

How long does it take to waterproof a balcony?

A small balcony is typically waterproofed in two to four working days, plus time for scaffold if it is above ground floor. Liquid and GRP systems need dry weather and cure time between coats, which sets the pace.

The balcony door will be out of use while the membrane is laid and curing, and the room behind may be noisy while old paving or screed is broken out. If the team needs to work through the house, we agree a route and protect floors. Larger terraces with paving or decking take longer, because the finish has to be lifted and reinstated. Resin systems smell while they cure, so nearby windows are best kept closed.

What's included?

  • Written workmanship guarantee, with approvals handled where needed
  • Strip-out of the failed membrane and deck repairs
  • New liquid, GRP, single-ply or asphalt waterproofing
  • Lifting and setting aside of existing paving or decking

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?

Balconies and roof terraces in Brecon: questions

Do you cover Brecon?

Yes. Brecon is part of our Powys coverage, including postcode districts LD3. Surveys and roofs are carried out by vetted roofing teams working under S&K Property Investments and Improvement Ltd.

Who checks building regulations for a flat roof in Brecon?

Where the work needs approval it goes to Powys County Council building control, or a registered building control approver. We tell you at the survey whether your job needs it and deal with the paperwork as part of the quote.

How much does balcony or terrace waterproofing cost in Brecon?

£1,750–£3,000 for a 12 m² balcony in a liquid-applied system including scaffold, at Wales guide rates including VAT. The fixed price comes after a free survey for new and replacement roofs.

Can I put decking straight onto my flat roof?

Not directly onto the membrane. Decking needs a supporting system that spreads the load and lets water drain, and the roof must be checked for the extra weight.

Do you install balustrades?

Our work is the waterproofing and drainage. We detail the membrane around balustrade fixings so they stay watertight, and we can advise on where posts should be fixed.

Other flat roof work in Brecon

Balconies and roof terraces in Brecon: get a fixed price

Free survey and a written fixed quote for replacement and new roofs. No obligation.

Call usGet a guide price