Berkshire at a glance
- Largest towns
- Reading, Slough, Bracknell, Maidenhead
- Postcode areas
- GU, RG, SL
- Building control
- Reading Borough Council, Slough Borough Council, Bracknell Forest Council and 3 other councils
- Neighbouring areas
- Surrey · Buckinghamshire · Hampshire · Oxfordshire
- Guide price region
- South East (+10% on West Midlands rates)
Which towns in Berkshire do we cover?
12 towns and cities have their own page; we cover everywhere in between too.
What does a flat roof cost in Berkshire?
Guide prices at South East rates, including VAT. The fixed price comes after a survey.
| Job | Guide price inc VAT |
|---|---|
| Extension (20 m²), felt, new deck + insulation | £3,000–£5,150 |
| Single garage (18 m²), EPDM rubber | £1,750–£3,100 |
| Extension (20 m²), GRP, new deck + insulation | £3,300–£5,900 |
| Single garage (18 m²), torch-on felt | £1,650–£2,900 |
| Single garage (18 m²), liquid-applied | £2,250–£3,600 |
| Extension (20 m²), EPDM, new deck + insulation | £3,100–£5,350 |
Which flat roofs are common in Berkshire?
Rain and wind decide how a flat roof is detailed. Much of the South East sits in the drier Thames catchment at roughly 730 mm of rain a year, so the usual failures are at joints, upstands and outlets rather than from sheer volume of rain. Across Berkshire, flat roofs are typically found on 1930s semis with flat-roofed garages and kitchen extensions, bungalows with flat-roofed side extensions and dormers and terraced streets with flat-roofed rear kitchens and bathrooms. Approximate 1991–2020 regional averages based on Met Office data.
Which flat roof jobs do we take on in Berkshire?
Flat roof surveys and leak tracing
Flat roofs in Berkshire hide their problems well. A covering can look fine while the insulation beneath it is wet or the deck is softening. A survey with moisture readings and core samples shows what's happening under the surface before it reaches the ceiling.
GRP fibreglass roofing
Some Berkshire homeowners pick GRP for appearance alone. The topcoat comes in several colours, the trims are moulded to match, and the finished roof looks tidy from upstairs windows. With good laying conditions and a sound deck, a GRP roof typically lasts 20 years or more.
Green and sedum roofs
In a place like Berkshire, 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.
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 services do we offer in Berkshire?
- Flat roof surveys and leak tracing
- Edge trims, outlets and drainage
- GRP fibreglass roofing
- Green and sedum roofs
- Flat roof replacement
- Rooflights in flat roofs
- Emergency leak repairs
- Porch, bay and canopy roofs
- Liquid-applied roofing
- Single-ply membrane roofing
- Commercial flat roofing
- Extension and kitchen roofs
- Dormer roofs
- Warm roof insulation upgrades
- Torch-on felt roofing
- Balconies and roof terraces
- Mastic asphalt roofing
- Flat roof repairs
- Garage roofs
- EPDM rubber roofing
- Flats, HMOs and block roofs
Flat roofing in Berkshire: questions
Which council handles building control for a flat roof in Berkshire?
It depends on where the roof is: in Berkshire that's Reading Borough Council, Slough Borough Council, Bracknell Forest Council and 3 other councils. 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. We confirm which applies at the survey.
How much is a new flat roof in Berkshire?
A typical 18 m² EPDM garage roof is £1,750–£3,100 and a 20 m² insulated GRP extension roof is £3,300–£5,900, at South East guide rates including VAT.
How soon can you survey a roof in Berkshire?
It depends on the time of year and where the roof is; we give you a date when you get in touch, and leaks are prioritised.
Which roofing systems do you fit in Berkshire?
EPDM rubber, GRP fibreglass, torch-on felt, liquid-applied and single-ply, plus mastic asphalt repairs. The survey decides which suits your roof.