Flat RoofingContractors

Flat roof systems

Single-ply membrane roofing in Hitchin

If you manage or own a commercial building in Hitchin, single-ply is often the most practical way to replace a large flat roof. We phase the work so the building stays weathertight, protect occupied areas, and add insulation and tapered falls where the roof needs them. Guide prices are online.

Light grey single-ply membrane roof with welded seams, outlets and plant on a commercial buildingComputer-generated example image

Hitchin at a glance

Postcode districts
SG4, SG5, SG6
Population
about 35,220 (GeoNames)
Council area
North Hertfordshire District Council
Building approval
North Hertfordshire District Council building control, or a registered building control approver
Nearest main town
Stevenage, about 5 miles
Guide price region
East of England (+5% on West Midlands rates)

Why choose single-ply roofing in Hitchin?

Single-ply is a common choice for medium and large flat roofs in Hitchin because it covers big areas quickly, is light on the structure and has a long typical life. Wide rolls mean fewer seams, and those seams are welded and probed rather than glued.

In and around Hitchin, flat roofs are typically found on lock-up garage blocks on estates, and on 1930s semis with flat-roofed garages and kitchen extensions. 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 single-ply roof cost in Hitchin?

For Hitchin we use East of England rates: £13,900–£22,850 is the guide for a 100 m² commercial roof in single-ply with insulation, VAT included. The fixed price comes after a free survey for new and replacement roofs.

JobGuide price inc VAT
Commercial roof (100 m²), single-ply + insulation£13,900–£22,850
Single garage (18 m²), single-ply£2,150–£3,500
Single garage (18 m²), EPDM rubber£1,700–£2,950
Extension (20 m²), EPDM, new deck + insulation£2,950–£5,150

Is single-ply the right system for my roof?

Single-ply is usually the right system for medium and large flat roofs, such as shops, offices, units, surgeries, clubs and blocks, where speed of installation, light weight and long life matter. On a small domestic roof it can work well, though it is not always the most economical choice.

In its favour: lightweight; quick to lay over large areas; flame-free, as the seams are welded with hot air; long typical life; welded details at rooflights and plant; lighter-coloured membranes reflect more sunlight.

Against it: only one waterproof layer, so welding quality is critical; can be punctured by foot traffic or dropped tools without walkway protection; PVC needs separating from bitumen; repairs need compatible material and welding equipment.

For a small garage or extension, EPDM is often simpler. Where people walk regularly, GRP or a liquid system may be tougher. A multi-layer torch-on felt roof gives built-in redundancy, and on older buildings mastic asphalt may be the original material. Our commercial flat roofing page covers larger jobs.

What's included?

  • Edge protection on every job and walkway protection around plant
  • Welded details at upstands, outlets, rooflight kerbs and edge trims
  • Hot-air welded seams, each probed along its full length
  • Vapour control layer and warm-roof or tapered insulation as specified

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?

Single-ply membrane roofing in Hitchin: questions

Do you cover Hitchin?

Yes. Hitchin is part of our Hertfordshire coverage, including postcode districts SG4, SG5, SG6. 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 Hitchin?

Where the work needs approval it goes to North 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 single-ply roof cost in Hitchin?

£13,900–£22,850 for a 100 m² commercial roof in single-ply with insulation, at East of England guide rates including VAT. The fixed price comes after a free survey for new and replacement roofs.

How long does a commercial single-ply roof take?

A roof of around 100 m² typically takes several days, depending on strip-out, insulation, details and weather. Work is phased so the building stays weathertight and occupied areas are protected.

Can single-ply be used on a house?

Yes. It can be used on garages, extensions and dormers, usually adhered rather than mechanically fixed. On small domestic roofs, though, EPDM or GRP is often more economical.

Other flat roof work in Hitchin

Single-ply membrane roofing in Hitchin: get a fixed price

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

Call usGet a guide price