Flat RoofingContractors

Flat roof systems

Liquid-applied roofing in Rhymney

Our liquid roofing service in Rhymney and across Blaenau Gwent covers overlays of sound roofs, full re-roofs with a new deck and insulation, and repairs to failing details. Every job starts with careful preparation, because a liquid membrane only performs when it is bonded to a clean, dry and stable surface.

Grey liquid waterproofing and reinforcement fleece rolled around a vent pipe on a flat roofComputer-generated example image

Rhymney at a glance

Postcode districts
NP22
Population
about 8,537 (GeoNames)
Council area
Blaenau Gwent County Borough Council
Building approval
Blaenau Gwent County Borough Council building control, or a registered building control approver
Nearest main town
Ebbw Vale, about 4 miles
Guide price region
Wales (−8% on West Midlands rates)

Why choose a liquid-applied roof in Rhymney?

Choose liquid roofing in Rhymney when the shape of the roof makes sheet materials awkward: curved edges, small dormers with many corners, or a mix of levels joined by short upstands. Each detail is reinforced in the same material as the main area, so the whole roof is continuous.

Rhymney's flat roofs are mostly on newer estates where the first extension roofs are now being replaced, with plenty on bungalows with flat-roofed side extensions and dormers 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 a liquid-applied roof cost in Rhymney?

At Wales guide rates, a typical 18 m² garage roof in a liquid-applied system comes to £1,900–£3,000 including VAT. The fixed price comes after a free survey for new and replacement roofs.

JobGuide price inc VAT
Single garage (18 m²), liquid-applied£1,900–£3,000
Balcony (12 m²), liquid-applied, scaffold£1,750–£3,000
Single garage (18 m²), EPDM rubber£1,450–£2,600
Extension (20 m²), EPDM, new deck + insulation£2,600–£4,500

Can a liquid roof go over my existing roof, and what preparation is needed?

Yes, if the existing roof is dry, firmly bonded and sitting on a sound deck. A liquid membrane is only as good as what lies beneath it, so we test the old roof before agreeing to overlay it.

At survey we check for:

  • Trapped moisture: soft spots, blisters or wet insulation mean the roof should be stripped, because water sealed in will cause new blisters and decay.
  • Deck condition: any sponginess or deflection needs repair first.
  • Adhesion: on felt and asphalt, loose areas are cut out and patched, and the existing surface must take the primer properly.
  • Falls and ponding: a coating follows the roof as it is. If water ponds now, it will pond on the new surface too unless the falls are corrected.

Preparation then follows: loose chippings removed, the surface cleaned and left to dry, blisters cut back and repaired, cracks filled, and the right primer applied. On older felt, mineral surfaces may need extra cleaning to give a good bond. Where the tests fail, we say so plainly and quote for a strip and re-roof. Read more on ponding water.

What's included?

  • Surface cleaning, repairs and removal of loose material
  • Fleece-reinforced liquid membrane applied to the specified thickness
  • Primer matched to the substrate
  • Top coat with optional anti-slip finish, and guarantee registration where available

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?

Liquid-applied roofing in Rhymney: questions

Do you cover Rhymney?

Yes. Rhymney is part of our Blaenau Gwent coverage, including postcode districts NP22. 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 Rhymney?

Where the work needs approval it goes to Blaenau Gwent County Borough 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 a liquid-applied roof cost in Rhymney?

£1,900–£3,000 for a typical 18 m² garage roof in a liquid-applied system, at Wales guide rates including VAT. The fixed price comes after a free survey for new and replacement roofs.

Is liquid roofing good for balconies?

Often, yes. It forms neatly around railings, door thresholds and drains, and some systems take foot traffic. A new balcony or roof terrace generally needs planning permission, so check before converting a roof.

Can liquid roofing be applied in the rain?

No. The surface must be dry, and most systems need a dry window while they cure. Some fast-curing products shorten that window, but the team will not apply onto a damp roof.

Other flat roof work in Rhymney

Liquid-applied roofing in Rhymney: get a fixed price

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

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