Name: FS Drainage Group
Address: Wadham Lodge Kitchener Road, Walthamstow, London, E17 4JP, GB
Telephone: 08006893497
Price range: ££

What we cover on a commercial roofing contract

Water can travel a long way before it becomes visible. A stain above a server room can originate ten metres away at a failed upstand, and patching the ceiling side of that problem guarantees a repeat visit in the next storm.

We work across flat and pitched commercial roofs. Felt, single ply, asphalt, liquid coatings, GRP, lead and metal detailing, along with gutters, outlets, rainwater goods, flashings, rooflights and parapets.

Emergency make-safe, permanent repair, planned refurbishment and condition surveys all sit with one contractor, so nobody argues about whose repair failed.

Modern gym with dumbbells, weight plates, punching bag, treadmill, and exercise bike under exposed pipes.

How we handle commercial roofing works

Site survey

We access the roof, trace the entry point and assess the covering, then report on condition and cause.

Fixed quote

Repair or refurbishment priced from survey findings, with the scope and any exclusions set out clearly.

Works carried out

Access, safety and phasing arranged around occupancy, with temporary protection where the roof is opened.

Sign-off and handover

Photographic record of the completed works, plus a written report on anything else the survey flagged.

ACTIVE LEAKS AND WATER INGRESS

Water coming through a commercial roof damages stock, ceilings, IT equipment and finishes while everyone hunts for the source. We attend, make safe, and trace the actual entry point using the roof build-up rather than the position of the stain. We can provide temporary weatherproofing while a permanent repair is arranged.

FLAT ROOFS AT END OF LIFE

Blistering, ponding, split seams and failed laps mean the covering is finished, not damaged. Patching an end-of-life roof spends money without extending it. Our commercial roofing in London covers overlays, stripped and recovered systems and liquid-applied refurbishment, with insulation upgraded to current standards during the works.

GUTTERS, OUTLETS AND RAINWATER GOODS

Blocked outlets are the most common cause of internal water damage on flat roofs, and the cheapest to prevent. We clear and repair gutters, valleys, hoppers and downpipes, replace failed rainwater goods, and clear roofs of debris seasonally so autumn leaf fall does not turn into standing water.

DETAILING, FLASHINGS AND PARAPETS

Roof leaks often start at junctions, not across the main roof surface. Upstands, abutments, parapet copings, rooflight kerbs and penetrations are all potential weak points as joints deteriorate over time. We repair the underlying detail rather than relying on sealant as a temporary fix.

Trusted across London and the South East

Who we cover in London

Housing associations, managed offices, retail and hospitality groups, industrial and warehouse units, schools, healthcare premises and the facilities management companies procuring on their behalf. Buildings where water ingress becomes a claim rather than an inconvenience.

Most clients hold a Priority Account, which fixes response times, agrees rates before the callout and keeps the same team on your buildings. Over 25 years across London and the South East, more than 12,000 jobs a year, and over 100 commercial clients on the books.

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What working with us actually looks like

Roof work brings access and safety requirements before anything else. Tell us the building height, access arrangements and any restrictions at setup, and we will attend with the right equipment rather than surveying twice.

Two-hour attendance

Emergency response across London to make safe, day or night.

Access arranged properly

Towers, MEWPs, edge protection and permits organised as part of the works.

Cause traced first

We identify the entry point before quoting the repair.

Photographic reporting

Roof condition and completed works recorded and issued with every visit.

One contact across sites

Consolidated reporting and invoicing, whatever the portfolio size.

Why the same patch keeps failing

Without safe access to the roof, the inspection can end up focusing on where the water appears rather than where it enters. Sealing the nearest visible defect may stop the symptoms temporarily, but the leak can return with the next sustained rainfall.

We survey the roof properly before pricing anything. That tells you whether you are dealing with a single failed detail, a blocked outlet, or a covering that has reached the end of its service life. Our commercial roofing in London is priced from that survey, so the repair addresses the cause and the quote reflects what the roof actually needs.

Other commercial services we cover

Every trade below runs as part of a planned programme or as standalone reactive work.

Planned maintenance

Scheduled works with reactive cover included

Commercial electrical

EICRs, fault finding and emergency lighting

Commercial drainage

Jetting, CCTV surveys and blockage clearance

Heating engineers

Plant room servicing and heating breakdown cover

Boiler installation

New commercial boilers, specified and installed properly

Air conditioning

AC servicing, repairs and full system installs

Commercial roofing

Flat roof repairs, leaks and gutter works

Commercial handymen

Small repairs and fabric jobs, done fast

Refurbishments

Fit-outs and refurbs across occupied commercial sites

Frequently asked questions

How quickly can you attend a roof leak?

We aim to be on site within two hours across London, subject to availability, to make safe and stop further ingress. Permanent repairs are scheduled once the roof has been surveyed and the entry point confirmed.

What does your commercial roofing in London cover?

Flat and pitched roof repairs, felt, single ply, asphalt, liquid coatings, GRP and metal systems, gutters and rainwater goods, flashings, parapets, rooflights and full refurbishment. We also carry out condition surveys and planned maintenance inspections.

Can you find a leak if we do not know where it is coming from?

Yes. We survey the roof build-up and trace the entry point rather than working from where the water appears internally. That is usually the difference between a repair that holds and one that fails during the next storm.

Repair or roof replace: how do we decide?

The survey tells you. Isolated damage on a sound covering is worth repairing. Widespread blistering, split seams or ponding means the system has reached end of life, and we will say so rather than sell you repeated patch repairs.

Do you handle access and safety?

Yes. Towers, MEWPs, edge protection and permits are arranged as part of the works, with RAMS supplied before we start. We confirm what access the building needs at the survey stage so nothing holds up the programme later.

Can roof works happen while the building is occupied?

Yes. Roof works are phased in sections, with temporary weatherproofing wherever the covering is opened up. Noisy operations can be scheduled outside occupancy hours on sites where trading or teaching cannot be disrupted.

Do you cover multiple sites under one agreement?

Yes. Rates, response times and any inspection programme are agreed once and applied across the portfolio. Each roof is surveyed and reported individually, but you get one account contact and consolidated invoicing.

Wadham Lodge
Kitchener Road
Walthamstow
London
E17 4JP