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Flat roof systems

Liquid-applied roofing in Hertford

Our liquid roofing service in Hertford and across Hertfordshire 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

Hertford at a glance

Postcode districts
SG13, SG14
Population
about 25,847 (GeoNames)
Council area
East Hertfordshire District Council
Building approval
East Hertfordshire District Council building control, or a registered building control approver
Nearest main town
Harlow, about 8 miles
Guide price region
East of England (+5% on West Midlands rates)

Why choose a liquid-applied roof in Hertford?

Choose liquid roofing in Hertford 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.

In and around Hertford, flat roofs are typically found on 1930s semis with flat-roofed garages and kitchen extensions, and on terraced streets with flat-roofed rear kitchens and bathrooms. The East of England is the driest part of Britain, with parts of the Anglian region around 630 mm a year, so summer heat and UV, not rainfall, do most of the ageing on a felt roof.

How much does a liquid-applied roof cost in Hertford?

For Hertford we use East of England rates: £2,150–£3,400 is the guide for a typical 18 m² garage roof in a liquid-applied system, VAT included. The fixed price comes after a free survey for new and replacement roofs.

JobGuide price inc VAT
Single garage (18 m²), liquid-applied£2,150–£3,400
Balcony (12 m²), liquid-applied, scaffold£2,000–£3,400
Single garage (18 m²), EPDM rubber£1,700–£2,950
Extension (20 m²), EPDM, new deck + insulation£2,950–£5,150

Do building regulations apply if a liquid coating goes over my roof?

They can. In England, Wales and Northern Ireland, re-covering more than half of a roof over a heated room is usually renovation of a thermal element, even when the new membrane goes over the old, so the roof should be insulated towards the renovation standard where feasible; for a Scottish property, the local building standards team will confirm whether a warrant is required.

A minor coating repair to a small area is different from re-covering the whole roof. Where insulation is needed, an overlay is not always practical, because the insulation has to go under a new waterproof layer. In that case we may recommend stripping to the deck, fitting a warm roof and applying the liquid system on top. Where approval applies, we deal with the paperwork; details are on the building regulations page.

What's included?

  • Fleece-reinforced liquid membrane applied to the specified thickness
  • Surface cleaning, repairs and removal of loose material
  • Survey of the existing roof, including moisture and adhesion checks
  • Detailing of upstands, outlets, pipes and corners before the main area

Building regulations in England

Replacing more than half of a flat roof over a heated room usually counts as renovating a thermal element, so the roof is insulated to around 0.16 W/m²K where that's technically and economically feasible, and the work is notified to building control: the council or a registered building control approver, unless a registered competent person self-certifies it. A roof on a new extension is built to 0.15 W/m²K. Patch repairs, and most unheated detached garages, don't trigger the upgrade. Structural changes, or a new covering that adds 15% or more to the roof's weight, also need approval. More on the rules.

Which nearby areas do we also cover?

Liquid-applied roofing in Hertford: questions

Do you cover Hertford?

Yes. Hertford is part of our Hertfordshire coverage, including postcode districts SG13, SG14. 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 Hertford?

Where the work needs approval it goes to East Hertfordshire District 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 Hertford?

£2,150–£3,400 for a typical 18 m² garage roof in a liquid-applied system, at East of England 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 Hertford

Liquid-applied roofing in Hertford: get a fixed price

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

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