Brighton flat roofing: repairs, replacement roofs and three proven systems
We inspect, repair and replace flat roofs across Brighton and Hove, including extensions, dormers, garages, porches, balconies and box-gutter areas. Your written quotation explains the roof build-up, access, drainage and the system we recommend - three-layer felt, GRP fibreglass or fibre-reinforced liquid roofing, often called liquid rubber roofing.
Flat-roof problems we investigate in Brighton
A visible leak does not always identify the failed detail. We inspect the covering and the places where water is most likely to enter, including edges, outlets, wall junctions and rooflights.
Splits, blisters or cracking
Ageing membranes can lose flexibility, separate from the deck or break down at laps and stress points.
Ponding and slow drainage
Standing water may indicate inadequate falls, blocked outlets, deflection or poorly formed perimeter details.
Damp at walls and ceilings
Upstands, flashings, parapets, door thresholds and rooflight kerbs are common routes for water ingress.
Soft or damaged decking
Long-term leaks can affect OSB, plywood or timber beneath the covering and may only become clear after opening up.
Loose edges and trims
Exposed Brighton rooflines need secure, compatible trims and sound termination details around the perimeter.
Condensation concerns
Moisture below a roof can relate to insulation, ventilation or vapour control as well as rainwater penetration.
Three flat-roof systems - selected for the roof, not from a sales script
There is no single material that is automatically best for every property. Roof shape, deck condition, movement, detailing, safe installation, drainage and budget all affect the recommendation.
Three-layer felt roofing
A multi-layer reinforced bituminous system finished with a protective mineral cap sheet. It suits many extensions, garages, dormers and larger domestic or commercial areas.
- Robust layered waterproofing
- Neat mineral-finished surface
- Good detailing options at upstands and edges
GRP fibreglass roofing
GRP is wet-laid over a correctly prepared deck using resin and glass reinforcement, then protected with a topcoat. It can give a crisp finish around rooflights, trims and simple roof shapes.
- Continuous reinforced laminate
- Purpose-made perimeter trims
- Hard-wearing, low-maintenance finish
Fibre-reinforced liquid roofing
Often described as liquid rubber roofing, a reinforced liquid-applied membrane can be useful around awkward shapes, penetrations or compatible existing surfaces. Preparation, reinforcement and the specified number of coats are critical.
- Seamless finished membrane
- Useful for complex geometry
- Overlay may be possible after assessment
A reliable flat roof is a complete build-up
The waterproof layer is only one part of the roof. Structure, deck, falls, vapour control, insulation, drainage and perimeter detailing must work together.
Illustrative warm-roof arrangement only. The correct specification depends on the property, structure and chosen waterproofing system.
Preparation, waterproofing and finished details
These photographs show three-layer felt preparation and installation work alongside completed reinforced liquid-rubber roofs by our team, making the two systems easy to tell apart.
Does your flat roof need repairing or replacing?
Not every leak requires a full replacement. The right decision depends on the age and overall condition of the covering, whether the deck is sound, how localised the failure is and whether previous repairs have lasted.
A repair may be sensible when...
The defect is localised, the surrounding membrane remains serviceable, the deck is sound and a compatible repair can be detailed properly.
Replacement is more likely when...
The roof is failing in several areas, water is trapped beneath the covering, the deck is damaged, falls are inadequate or repeated patching is no longer economical.
What a Brighton flat-roof quotation should explain
A useful quotation should do more than name a covering and give one total. It should let you compare the construction, detailing and responsibility behind each price.
Why Brighton customers choose Bespoke Roofing
Flat-roof performance depends on careful assessment and joined-up delivery. We coordinate the roofing, access and written scope so responsibilities remain clear.
Access is planned alongside the roofing work and shown within the written quotation.
Inspection, progress and completion photographs are supplied where practical and appropriate.
We understand exposed rooflines, driving rain and the varied property types found across Brighton and Hove.
We offer felt, GRP and reinforced liquid systems rather than forcing every roof into one material.
Federation of Master Builders membership and an established Checkatrade profile.
The applicable duration, coverage and exclusions are stated for the agreed system and scope.
Our Brighton flat-roof process
Tell us where and when the leak appears, or send safe ground-level photographs.
We inspect the covering, drainage and visible junctions; drone images may help where suitable.
The recommended system, preparation, access, price and guarantee are recorded.
Our in-house team coordinates scaffolding where the work requires it.
The existing build-up is removed where specified and the exposed deck is checked.
Deck, falls, vapour control, insulation and details are completed as included.
The chosen felt, GRP or liquid system is installed with its compatible components.
The site is cleared and qualifying work is issued with the written guarantee stated.
Compare the systems before requesting your quotation
Our illustrated PDF explains three-layer felt, GRP fibreglass and fibre-reinforced liquid roofing (often called liquid rubber), using photographs from Bespoke projects and simple roof build-up drawings.
- Which system may suit which roof
- What a good roof build-up includes
- Details that commonly cause leaks
- Repair-versus-replacement questions
- What to expect in a quotation
Brighton flat-roofing FAQs
Which is better: felt, GRP or liquid rubber roofing?
Each can perform well when it is correctly specified and installed. Felt is a proven layered system, GRP provides a rigid reinforced finish, and reinforced liquid roofing - often called liquid rubber - can be helpful on complex shapes or compatible overlays. We recommend a system after inspecting the roof and its details.
Can you apply a new system over my existing flat roof?
Sometimes, but only when the existing covering is compatible, well bonded and sufficiently dry and the deck beneath is believed to be sound. Trapped moisture, widespread failure or uncertain decking can make stripping the safer recommendation.
Why is water standing on my flat roof?
Possible causes include inadequate falls, blocked or undersized outlets, local deck deflection or raised perimeter details. A small amount of temporary rainwater may not prove failure, but persistent ponding should be assessed.
Do you replace damaged roof decking?
Yes. Where the scope includes stripping the covering, the deck can be inspected directly. Known replacement work is included in the quotation, while the approach to concealed damage is explained before work starts.
Can you improve the insulation when replacing a flat roof?
Often, yes. The proposed insulation and vapour-control arrangement must suit the existing construction and current requirements. We can explain when building-control or specialist design input may be appropriate.
Do you arrange scaffolding?
Yes. Bespoke Roofing has an in-house scaffolding service, allowing access and roofing work to be coordinated within the same quotation where scaffold is required.
Are your flat roofs guaranteed?
Qualifying work receives the written workmanship guarantee stated in your quotation. The duration and coverage depend on the chosen system, deck and agreed scope, so we confirm this before work begins.
Which parts of Brighton do you cover?
We work across Brighton and Hove, including central Brighton, Kemptown, Hanover, Preston Park, Patcham, Woodingdean, Rottingdean, Saltdean, Portslade and surrounding areas.
Need a flat-roof repair or replacement in Brighton?
Tell us where the problem is and send photographs if they can be taken safely from ground level or inside the property. Never climb onto a wet or damaged flat roof.