Amersham at a glance
- Postcode districts
- HP6, HP7
- Population
- about 21,731 (GeoNames)
- Council area
- Buckinghamshire Council
- Building approval
- Buckinghamshire Council building control, or a registered building control approver
- Nearest main town
- High Wycombe, about 6 miles
- Guide price region
- South East (+10% on West Midlands rates)
When does a garage roof in Amersham need replacing?
Garage roofs in Amersham take the weather head-on, often with no shelter from surrounding buildings. Wind lifts loose edge trims, frost works at cracked felt, and leaves block small gutters. When several of these faults appear together, a new roof with fresh edges is usually better value than chasing each one.
Around Amersham, flat roofs are common on 1960s and 1970s link-detached houses with flat-roofed garages and porches and on low-rise post-war blocks of flats. 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.
How much does a new garage roof cost in Amersham?
Guide price in Amersham: £1,750–£3,100 for a typical 18 m² garage roof in EPDM, including VAT at South East rates. The fixed price comes after a free survey for new and replacement roofs.
| Job | Guide price inc VAT |
|---|---|
| Single garage (18 m²), EPDM rubber | £1,750–£3,100 |
| Single garage (18 m²), torch-on felt | £1,650–£2,900 |
| Single garage (18 m²), GRP fibreglass | £1,950–£3,600 |
| Extension (20 m²), GRP, new deck + insulation | £3,300–£5,900 |
Which roofing system is best for a garage?
For most single garages, EPDM rubber is a strong choice, because a simple rectangle can usually be covered in one sheet with no joins in the field of the roof. It is light, flexible and quick to lay.
GRP fibreglass suits garages with integral box gutters, several corners or a roof that is walked on to reach windows or clean gutters. Torch-on felt remains a cost-effective, durable option, particularly on larger lock-up runs where budget matters. Where a garage adjoins timber or other combustible material, we also consider whether a torch-free system is the safer method, such as EPDM, GRP or a liquid-applied coating.
If you plan to convert the garage later, say so at survey. A roof built as a warm roof now saves stripping it again when the room is heated.
What's included?
- Gutter or outlet renewed where the old one has failed
- Free survey of the deck, fall and gutter line
- New membrane dressed into fresh edge and drip trims
- Strip-out of old felt, chippings and waste
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?
- Chesham · 2 mi
- Chalfont Saint Peter · 5 mi
- Gerrards Cross · 6 mi
- High Wycombe · 6 mi
- Rickmansworth · 6 mi
- Berkhamsted · 7 mi
Garage roofs in Amersham: questions
Do you cover Amersham?
Yes. Amersham is part of our Buckinghamshire coverage, including postcode districts HP6, HP7. 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 Amersham?
Where the work needs approval it goes to Buckinghamshire 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 new garage roof cost in Amersham?
£1,750–£3,100 for a typical 18 m² garage roof in EPDM, at South East guide rates including VAT. The fixed price comes after a free survey for new and replacement roofs.
Should I insulate my garage roof?
Only if the garage is heated or you plan to use it as a room. Insulating a cold, unheated garage roof can cause condensation unless it is designed carefully, so we advise case by case.
Can you put a new roof on a garage with a cement sheet roof?
Yes, once any suspected asbestos has been tested and removed by a licensed specialist. The garage then usually needs new timbers and a deck before the new membrane goes on.