Flat Roofing in Keynsham

Keynsham at a glance

Postcode districts: BS31
Population: about 19,603 (GeoNames)
Council area: Bath & North East Somerset Council
Building approval: Bath & North East Somerset Council building control, or a registered building control approver
Nearest main town: Bristol, about 5 miles
Guide price region: South West (+3% on West Midlands rates)

What flat roof work do we do in Keynsham?

Single-ply membrane roofing

If a flat roof in Keynsham has poor falls and ponding, a single-ply re-roof with tapered insulation can correct both problems at once. The tapered boards build the fall into the insulation, and the membrane is laid over the top, with outlets set at the new low points.

GRP fibreglass roofing

For a garage or extension in Keynsham that doubles as a step-out space for window cleaning, GRP gives a firmer footing than a rubber membrane. With an anti-slip topcoat it handles light, occasional use, though a full terrace needs its own specification and, in many cases, planning permission.

Warm roof insulation upgrades

Landlords with flats and HMOs in Keynsham sometimes hear from tenants about cold top-floor rooms and black mould on ceilings. A warm roof upgrade during re-roofing tackles both the heat loss and the condensation behind the mould, and helps keep the roof timbers dry.

All flat roof services in Keynsham:

How much does a flat roof cost in Keynsham?

Guide prices at South West 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.

Job	Guide price inc VAT
Single garage (18 m²), GRP fibreglass	£1,850–£3,350
Single garage (18 m²), torch-on felt	£1,550–£2,700
Balcony (12 m²), liquid-applied, scaffold	£1,950–£3,350
Emergency temporary weatherproofing visit	£190–£460
Extension (20 m²), EPDM, insulation + 1 rooflight upstand	£3,100–£5,400

What flat roofs are typical in and around Keynsham?

In a town like Keynsham flat roofs are mostly on terraced streets with flat-roofed rear kitchens and bathrooms and low-rise post-war blocks of flats. The climate is part of the brief. The South West averages roughly 1,260 mm of rain a year and many roofs face wind off the Atlantic, so we specify fixings and edge details for wind uplift as well as drainage. Approximate 1991–2020 regional averages based on Met Office data.

Who approves flat roof work in Keynsham?

Where approval is needed it goes to Bath & North East Somerset 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 Keynsham do we cover?

Flat roofing in Keynsham: questions

Do you cover Keynsham?

Yes, including postcode districts BS31. Send your postcode with your enquiry and we'll arrange a survey.

How much is a new flat roof in Keynsham?

A typical 18 m² EPDM garage roof is £1,650–£2,900 and a 20 m² insulated EPDM extension roof is £2,900–£5,050, at South West guide rates including VAT.

Is a free survey available in Keynsham?

Yes, for new and replacement roofs. A standalone condition survey or leak investigation report is a paid service.

Do flat roofs in Keynsham need building control approval?

Often. Replacing more than half of a roof over a heated room usually means insulating it to current standards and notifying building control, and structural changes need approval too. In Keynsham that's Bath & North East Somerset Council building control, or a registered building control approver. We tell you at the survey and handle it.