Flat RoofingContractors

Hertfordshire

Flat roofing in Stevenage

We replace, repair and build flat roofs across Stevenage: garages, extensions, dormers, balconies, and roofs on shops, units and blocks.

Flat roof stripped back to joists with firrings and new OSB3 deck boards being laid on a terrace offshootComputer-generated example image

Stevenage at a glance

Postcode districts
SG1, SG2
Population
about 91,774 (GeoNames)
Council area
Stevenage Borough Council
Building approval
Stevenage Borough Council building control, or a registered building control approver
Nearest main town
Luton, about 9 miles
Guide price region
East of England (+5% on West Midlands rates)

What flat roof work do we do in Stevenage?

Single-ply membrane roofing

Single-ply also works on an extension or garage in Stevenage if you want a light, clean finish in a pale colour. On small roofs it is usually adhered, and while it can cost more than EPDM, it gives the same welded seams and details found on commercial roofs.

Green and sedum roofs

In a place like Stevenage, many people look out over a flat extension or garage roof from upstairs. Grey felt or rubber isn't much of a view, and a sedum roof turns it into something green that changes colour through the seasons and flowers in summer.

Flat roof replacement

A sensible moment to replace a flat roof in Stevenage is when other work is planned on the house, such as a kitchen refit below, new windows or a loft conversion. Doing the roof first protects the new work, and it is the natural time to upgrade insulation to the level the regulations expect for a renovated roof.

All flat roof services in Stevenage:

How much does a flat roof cost in Stevenage?

Guide prices at East of England rates including VAT. New and replacement roofs get a fixed price after a free survey; repair prices are confirmed once we've found the problem.

JobGuide price inc VAT
Single garage (18 m²), torch-on felt£1,600–£2,750
Extension (20 m²), GRP, new deck + insulation£3,150–£5,650
Single garage (18 m²), EPDM rubber£1,700–£2,950
Balcony (12 m²), liquid-applied, scaffold£2,000–£3,400
Commercial roof (100 m²), single-ply + insulation£13,900–£22,850

What flat roofs are typical in and around Stevenage?

In a large town like Stevenage flat roofs are mostly on bungalows with flat-roofed side extensions and dormers and lock-up garage blocks on estates. Rain and wind decide how a flat roof is detailed. 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. Approximate 1991–2020 regional averages based on Met Office data.

Who approves flat roof work in Stevenage?

Where approval is needed it goes to Stevenage Borough Council building control, or a registered building control approver. Replacing more than half of a roof over a heated room usually counts as renovating a thermal element, so it is insulated to current standards and notified to building control. How the rules work.

Which places near Stevenage do we cover?

Flat roofing in Stevenage: questions

Do you cover Stevenage?

Yes, including postcode districts SG1, SG2. Send your postcode with your enquiry and we'll arrange a survey.

Do you also cover Hitchin?

Yes. Hitchin is about 5 miles from Stevenage and we cover it too.

How much is a new flat roof in Stevenage?

A typical 18 m² EPDM garage roof is £1,700–£2,950 and a 20 m² insulated EPDM extension roof is £2,950–£5,150, at East of England guide rates including VAT.

Can you repair a leaking flat roof in Stevenage?

Yes. We trace where the water is actually getting in first, because the leak inside is rarely under the defect outside, then repair with materials compatible with your roof.

Get a fixed price for your flat roof

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

Call usGet a guide price