Flat roofing specialists · Bromley, Kent & London
We diagnose why your flat roof is failing, correct the cause instead of covering it, and hand back a roof that stops costing you money every winter, priced fixed before we start and guaranteed for 10 years on workmanship.
16 years in flat roofing · free fixed-price quotations · fully insured
Overview
Refurbishment and remedial work covers everything between a targeted repair and a full replacement: stripping failed coverings, replacing wet insulation, repairing or renewing decking, correcting falls, rebuilding outlets and upstands, and reinstating a properly specified waterproofing system, single-ply or reinforced liquid, over the corrected build-up.
Homeowners with an extension, garage or dormer roof that has started leaking; landlords and managing agents with recurring call-outs on the same building; and commercial owners with ageing felt or asphalt roofs that are patched every year and still fail. If you have paid for repairs more than once on the same roof, this is the page for you.
When you can see ponding that never dries, blistering, splits, lifted laps, rusted or crushed outlets, staining on ceilings, damp at wall heads, or soft spots underfoot. Also when a roof is simply at the end of its service life and you want to plan the work rather than react to a storm.
Most flat roof failures are not membrane failures; they are detail, drainage or build-up failures that a new covering alone will not fix. Applying new waterproofing over wet insulation or a failed deck buries the problem and shortens the life of the new work. We inspect first, establish why the roof failed, and then price the work that actually solves it.
What happens if it is left
A roof leak that runs for a season stops being a roof leak. Wet insulation, rotting deck timbers, corroded fixings and damaged ceilings all get added to the bill.
Saturated boards lose their thermal performance, so you pay in heating while you wait, then pay again to remove and replace them when the roof is finally done properly.
Patch repairs are individually cheap and collectively expensive. None of them carry a guarantee across the roof as a whole, so each new leak starts the cycle again.
Ongoing water ingress into a let or commercial property creates disputes, damaged stock and interruption that dwarf the cost of doing the roof once.
Our process
We get on the roof, examine the covering, details, outlets and falls, and check the build-up for trapped moisture. Photographic reporting is available where you need evidence for an owner, insurer or managing agent.
We identify the actual failure mechanism, detail, drainage, deck, movement or the covering itself, and tell you plainly whether this is a remedial job or a full re-roof.
Strip out what has failed, dry or replace wet insulation, repair or renew decking, correct falls with tapered insulation where needed and rebuild outlets, upstands and terminations properly.
New single-ply or reinforced liquid waterproofing installed to manufacturer specification, welds probed or coverage checked, and drainage tested.
Waste cleared, roof handed over with a 10-year workmanship guarantee and, where applicable, manufacturer-backed guarantee options for the specified system.
What you get
We do not price work until we know why the roof failed, so you are not paying for a new covering over an unresolved problem.
If a partial refurbishment solves it, we quote a partial refurbishment. If the roof needs replacing, we say so and show you why.
One properly specified job replaces the annual repair bill, and the workmanship is guaranteed for 10 years.
Refurbishment is the natural moment to upgrade insulation and convert to a warm roof build-up while the covering is off anyway.
Photographic reports document condition before and after, useful for managing agents, insurers and service charge justification.
Free quotation, fixed price as standard, quoted individually on the roof in front of us.
In detail
Diagnosis starts with the details, not the field. We look at outlet condition and flow, upstand heights and terminations, kerb and rooflight junctions, perimeter trims, and evidence of movement or ponding. Internally, staining position tells us where water is arriving, not where it is entering; the two are rarely in the same place on a flat roof, which is why guessing produces repeat visits.
Older built-up felt roofs typically fail at laps, blisters and upstands as the bitumen ages and loses flexibility. Mastic asphalt tends to crack at movement points and degrade around outlets. Both can often be refurbished, stripped and rebuilt, or overlaid with a reinforced liquid system where the substrate is sound and dry, provided the insulation beneath is not saturated.
Timber decks are checked for soft, delaminated or rotted areas and replaced board by board where needed. Profiled metal decks are checked for corrosion at laps and fixings. Insulation that has taken water is removed rather than dried in place, because saturated boards will not recover their performance and will hold moisture against the new build-up.
Persistent ponding means the falls or the outlets are wrong. During refurbishment we can rebuild fall using tapered insulation, relocate or add outlets, and increase outlet capacity where the roof area demands it. Getting water off the roof is the single most effective thing you can do to extend the life of any covering.
Not every failing roof needs stripping. Where the deck and insulation are dry and only the covering and details have failed, a reinstated membrane or an overlaid reinforced liquid system restores the roof at a fraction of the cost. Where moisture has spread through the build-up, partial work simply relocates the leak. The inspection decides, and we show you the evidence.
Occupied commercial buildings need the roof kept weathertight every night. We phase larger refurbishments so open areas are closed down before we leave site, provide RAMS for the works, and are asbestos awareness trained for older commercial stock. Photographic reporting through the job gives owners and managing agents a record of what was found and what was done.
Recent work
Common questions
It depends entirely on how much of the build-up has to be replaced, which is why we inspect before pricing. Quotations are free and fixed price as standard, no 'from' prices, and no figure that changes once we start.
The inspection answers that. If the deck and insulation are dry and only details have failed, remedial work is usually the right call. If moisture has spread through the build-up, replacement is cheaper over any sensible time horizon.
Most leaks are traced during the inspection by working through the details and drainage. Where the path is not obvious, a detailed inspection with photographic reporting may be chargeable, we tell you that upfront.
Small domestic refurbishments are typically a few days; larger commercial roofs are phased. We confirm the programme in the quotation.
Yes: a 10-year workmanship guarantee on the work we carry out. Manufacturer-backed guarantees on the specified system are available where applicable.
Yes. Commercial and let properties are phased so the roof is weathertight at the end of each day, with RAMS provided for the works.
Emergency leak and storm-damage call-outs are accommodated where possible. Call us and we will tell you honestly what we can do and when.
Yes, and it is the sensible moment to do it. Converting to a warm roof build-up while the covering is off avoids paying twice for access and strip-out.
Bromley, Kent, London and the South East, Orpington, Beckenham, Croydon, Dartford, Sevenoaks and surrounding areas, plus nationwide for larger commercial projects.
Tell us about the roof and your postcode. We will inspect it, tell you what has actually failed and give you a fixed price, backed by a 10-year workmanship guarantee.
16 years in flat roofing · Sika, Danosa and Bauder trained · fully insured · 10-year workmanship guarantee