For over 22 years, Foundation and Finishing has been delivering Flat Roof Replacements across Greater London. We renew ageing flat roofs with modern systems designed for durability and performance.




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Our Services
Older flat roofs can suffer from leaks, ponding, and thermal inefficiency. Replacing them with modern materials is an opportunity to improve weatherproofing, insulation, and detailing. We replace flat roofs on extensions, garages, porches, and main roofs, using systems such as high-performance felt, single-ply membranes, or liquid coatings, depending on context.
Good flat roofing depends on preparation, falls, and edge detailing as much as the membrane itself. We assess existing structure, drainage, and upstands before proposing a solution. Insulation upgrades can often be integrated to improve energy performance. Our teams work safely and methodically to deliver neat, reliable flat roofs.
Reduces the risk of leaks and water ingress.
Offers an opportunity to upgrade thermal performance.
Uses modern materials with longer service lives than many older systems.
Selects finishes and details that are straightforward to clean.
Delivers cleaner lines and tidy edge details.
Improves falls and outlets to reduce ponding.
Over 100 London families trusted us with their biggest investment. The kind of work that makes homeowners call us back for their next property.
Over 100 London families trusted us with their biggest investment. The kind of work that makes homeowners call us back for their next property.

Over 100 London families trusted us with their biggest investment. The kind of work that makes homeowners call us back for their next property.
We work with the same qualified tradespeople on every job. Gas engineers, electricians, builders, finishers. They know our standards and they deliver. One point of contact for you, zero coordination headaches.
We give you realistic timelines and pricing up front. If we discover something unexpected during the work, you know immediately. No hiding problems until it's too late.

Over 100 London families trusted us with their biggest investment. The kind of work that makes homeowners call us back for their next property.
Over 100 London families trusted us with their biggest investment. The kind of work that makes homeowners call us back for their next property.
We work with the same qualified tradespeople on every job. Gas engineers, electricians, builders, finishers. They know our standards and they deliver. One point of contact for you, zero coordination headaches.
We give you realistic timelines and pricing up front. If we discover something unexpected during the work, you know immediately. No hiding problems until it's too late.
Over 100 London families trusted us with their biggest investment. The kind of work that makes homeowners call us back for their next property.
Our Process
Here’s exactly how we handle every project, from start to finish.
Here's exactly how we handle every project, from start to finish.
We measure everything, talk through your vision, and tell you what will actually work in your space.
Fixed price. Fixed timeline. No surprises halfway through your project.
Same team from day one to completion. Weekly progress photos. Direct line to Fares whenever you need answers.
Persistent leaks, widespread blistering, or age can all indicate that replacement is more sensible than patch repairs.
It depends on your roof, budget, and preferences. We discuss felt, single-ply, and liquid systems with you.
Yes. Many replacements incorporate insulation upgrades to meet modern standards.
Usually disruption inside is minimal, though we protect interiors and manage noise and dust.
All roofs need maintenance, but modern systems installed correctly can perform reliably for many years.