FLAT ROOF SPECIALISTS
Flat Roof Installation and Repair Across North West London, North London, East London and Essex
Flat roofs have a reputation for failing early, and twenty or thirty years ago they often did. The materials and methods used today, when fitted correctly, give a flat roof a working life comparable to a tiled one. We design, install and repair flat roofs on extensions, garages, dormers, porches and outbuildings across North West London, North London, East London and Essex, using systems that are built to last rather than patched to fail again.
Flat Roof Systems We Install
EPDM rubber membrane
Supplied in single sheets that cover most domestic flat roofs without joints. EPDM has an expected lifespan of thirty to fifty years and is the system we recommend for most replacements.
GRP fibreglass
Glass-reinforced plastic laid as a continuous laminate over a timber deck. GRP gives a smooth, hard-wearing surface and an expected life of around twenty-five to thirty years.
Single-ply membrane
Membrane systems for larger commercial roofs where a different specification applies.
High-performance felt
Modern bituminous systems where a traditional finish is wanted. The materials used today are considerably better than the felt of twenty years ago.
Lead and zinc
Traditional materials for the smaller dormer and bay roofs where they are still the right choice.
Why Flat Roofs Fail
The two most common causes of failure are pooling water and movement in the substrate below. Pooling happens when the roof has been laid without enough fall, so water sits on the surface and works at the seams and around the upstands. Movement happens when the timber deck has been built without proper allowance for expansion, or when fixings have lifted over time.
A well-designed flat roof has a fall of at least 1 in 40 to a clear outlet, a sound deck with the correct fastener pattern, insulation specified to suit a warm or cold deck build-up, and detailing around upstands, gutters and roof lights that does not rely on sealant alone to hold water out.
Insulation and Building Regulations
Replacement flat roofs are subject to current building regulations on thermal performance. This usually means upgrading the insulation as part of the work, with the build-up calculated to meet the relevant U-value. We work through the regulations as part of the design and include them in the written quotation.
Replacement, Recover or Repair
Not every failing flat roof needs a full replacement. Where the underlying deck is sound and only the surface membrane has reached the end of its life, the existing system can be stripped and a new membrane laid over the same deck. Where the deck itself is wet or damaged, the roof has to be stripped back further and the timber repaired or replaced before the new membrane goes on.
For isolated leaks, a targeted repair is usually the right approach in the first instance. A small repair carried out quickly often delays a full replacement by several years. Where leaks recur or new ones appear within months of a previous repair, replacement is generally the more cost-effective decision.
Why Choose Ridgewell
A flat roof properly installed will outlive most of the people involved in putting it in. We are a family run business with decades of roofing experience, and the work is carried out by our own team. Guarantees are issued on completed installations and are honoured.
How We Work
We make replacing or repairing a flat roof simple. Our step-by-step process keeps you informed at every stage, from the first site visit through to the final handover.
STAGE ONE
Free Site Survey & Quotation
We visit your property, inspect the existing deck and covering, take measurements and provide a detailed, written quotation — no obligation and no hidden costs.
STAGE TWO
System & Material Selection
We advise on the best system for your roof and budget — EPDM, GRP, single-ply or felt — and confirm the insulation build-up needed to meet building regulations.
STAGE THREE
Agreed Schedule & Fixed Pricing
Before any work starts, you will have a fixed price and a clear project timeline. If anything changes on site, we discuss it with you first — no surprises.
STAGE FOUR
Professional Installation & Completion
Our team handles all preparation, deck repair, insulation and membrane installation. We leave the site clean and tidy, and walk you through the completed roof before we go.
Areas We Cover
Flat roofing work is carried out across North West London, North London, East London and Essex on domestic and commercial properties.
North West London
North London
East London
Essex
Request a Flat Roof Quote
For a free quotation on a new flat roof, a re-cover or a repair, complete the short form below and a member of the team will be in touch. A photograph of the roof and a description of any leaks or visible damage is enough to get the conversation started.
