Our Services
Roofing Services in London
Albert Construction builds and repairs roofs across London — pitched roofs on new extensions, flat roofs over rear additions, dormer roof structures on loft conversions, and repairs to existing properties. Roofing is part of almost every project we undertake, and we do it ourselves rather than subcontracting it out.

What We Offer
A roof leak is one of the most damaging things that can happen to a London property. We take roofing seriously — proper felt underlays, correctly fixed battens, correct tile gauge, and lead flashings dressed properly rather than filled with mastic and left to fail in two years.
Pitched Roofs for Extensions
Every rear extension we build gets a properly constructed pitched or mono-pitch roof — structural rafters, breathable felt underlay, battens, and tiles or slates to match your existing property. We match brick and tile to the original where material is available, or advise on complementary alternatives.
Flat Roofing — EPDM & GRP
We specify and install EPDM rubber or GRP fibreglass flat roofing systems on extensions and outbuildings. Both offer 25+ year service lives when installed correctly with proper falls, upstands, and drip edges. We do not use felt on new flat roofs — it is a false economy.
Dormer Roof Construction
Dormers are the most leak-prone element of a loft conversion if not built and waterproofed correctly. We build the structural cheeks, back gutter, and lead apron as part of every dormer we construct — not as an afterthought — and we guarantee them watertight.
Roof Repairs & Leak Investigations
Finding the source of a roof leak is often harder than fixing it. Water enters at one point and travels to another before appearing inside. We investigate properly — checking flashings, valley gutters, ridge mortar, and underfelt — before quoting a repair, so we fix the cause rather than the symptom.
Guttering, Fascias & Soffits
Blocked or damaged guttering causes more damp problems in London houses than most people realise. We install and replace uPVC and cast-iron guttering, fascias, and soffits — clearing the old system properly and setting correct falls so water runs to the downpipe rather than pooling.
Lead Flashings & Valleys
Lead flashing around chimney stacks, parapet walls, and where roofs meet walls is the most common source of roof leaks in older London properties. We dress lead to the correct Code thickness, step-flash into mortar joints, and seal with proper lead trim rather than mastic.



“Shop extension and refurbishment”
Albert is a very experienced, hard working and trustful builder. He completed all the planned works on time and spot on budget, with no extras added. Highly recommended!
Job location: SW11
Our Process
Free Roof Inspection
We get up on the roof and inspect it properly — not from ground level with binoculars. We report what we find, photograph any defects, and explain the options before any work is agreed.
Fixed-Price Quotation
Your quote specifies the materials, the system, and exactly what is included. No provisional sums for 'additional repairs found during work' — we identify them during the inspection.
Scaffolded & Safe Installation
All work at height is done from properly erected scaffolding. We do not use ladders for anything beyond access. The scaffold goes up, the roof is completed, and it comes down when the job is signed off.
Inspection & Guarantee
We inspect every element before the scaffold is struck — there is no second chance once it is down. Your new roof or repair is covered by our 2-year guarantee and £10M insurance.
Ltd Company
Companies House registered
£10M Insured
Public liability cover
2-Year Guarantee
Written workmanship guarantee
9.7/10 Checkatrade
29 verified reviews
Frequently Asked Questions
How do I know if my flat roof needs replacing or just repairing?
My roof is leaking but I can't find where — can you help?
Do you replace like-for-like tiles on an extension to match the house?
Do you need planning permission for a new roof or re-roof?
What is the difference between EPDM and GRP flat roofing?
Need a Roof Survey?
Get a free roof inspection and fixed-price quotation for your roofing project. No obligation, no hidden costs.