Frequently Asked Questions About Roofing in Wandsworth
Content last reviewed: September 2026.
The questions below cover what Wandsworth customers ask us most often.
How quickly can you attend a roofing job in Wandsworth?
We aim to carry out an on site assessment within two working days for standard repairs across Wandsworth and the rest of SW18. For storm damage or an active leak we offer emergency callout and try to attend the same day. Wandsworth is a core part of our South West London round, worked alongside Putney, Roehampton and Southfields, and we route across the river via Wandsworth Bridge or Putney Bridge, so it is planned for rather than treated as an outlying area. Once we have inspected the roof we confirm a schedule for any follow up work, so you know when the job will be finished.
Which parts of Wandsworth and SW18 do you cover?
We cover every street in Wandsworth and the full SW18 postcode, from the Tonsley cottages and the Old York Road area to the villas around Wandsworth Common and Spencer Park, the terraces of Earlsfield and Magdalen Park, and the riverside blocks at Battersea Reach and Riverside Quarter. We also cover Putney in SW15, Southfields in SW18, and Balham and Clapham nearby, so a job near a postcode boundary is not a problem. Our roofers travel out to SW18 for every job, we do not subcontract Wandsworth work to a third party roofer working under our name.
Why is my Wandsworth Common villa roof leaking?
On the large villas around Wandsworth Common the roof is really several roofs joined together: a main hipped slope, one or two rear ranges, a valley gutter where the ranges meet, a turret or a bay with its own lead roof, and one or two chimney stacks. A leak usually starts at one of those junctions, most often a tired valley lining between the ranges, worn lead to a turret or bay, or a failed flashing around a shared stack, and the water then tracks along the timbers before it shows on a ceiling, sometimes metres from the fault. This is why we survey the whole roof assembly on a villa, not just the room under the stain, before quoting.
How much do roof repairs cost in Wandsworth?
As a general guide, minor repairs such as a slipped slate or single ridge tile typically run £150 to £350, emergency temporary weatherproofing from £200, hip and ridge re-bedding £350 to £900 or more per run, a concealed valley or parapet gutter re-line £650 to £1,800 or more per run before scaffolding, and turret or bay lead roof renewal £900 to £2,500 or more. Flat roof or chimney repairs run £400 to £1,500 or more, and a full pitched roof replacement around £260 to £290 per square metre plus scaffolding. See our cost guide table above. Complex villa roofs around the Common are quoted only after a full survey, because the number of hips, valleys, turrets and stacks changes the figure significantly.
Do you work in the Tonsleys and Wandsworth's other conservation areas?
Yes. Parts of Wandsworth sit within a conservation area, including the Tonsley grid near Wandsworth Town, the Wandsworth Common area, Magdalen Park in Earlsfield (which also has an Article 4 direction) and the private Spencer Park estate. On those streets we work to like-for-like repair: matched natural slate rather than concrete tile, parapets and copings kept to their original profile, and cast iron rainwater goods repaired rather than replaced with plastic. Where a change needs consent we prepare the scope so it can go to the London Borough of Wandsworth before work starts.
How does your quoting process work?
We carry out a free, no obligation inspection before providing a quote. On a Tonsley cottage that is a short visit; on a villa near the Common it means getting onto the roof and checking every hip, valley, turret, stack and concealed gutter, because that is where the faults are. Once you accept the quote we schedule the work and confirm a date. There is no call out charge for the initial inspection visit anywhere within SW18, whether the job is a single slipped slate or a full valley re-line. We give you a realistic idea of timing at the point of quoting rather than leaving you to chase for a start date.
What happens once I book a roofing job in Wandsworth?
Once you accept a quote we agree a date and confirm what access is needed. On the terraced streets and around the busier roads that often means a scaffold with a licence and a controlled-parking bay suspension from LB Wandsworth, which we arrange before we start. Our roofer carries out the agreed work and, on a repair, matches the new slate, lead and mortar to what is already on the roof. On valley, hip and shared-stack work we check the full assembly for other weak points as standard. Once finished you receive a written summary of what was done and any maintenance advice.
Who is responsible for a chimney stack shared between two Wandsworth Common houses?
Many of the villas around the Common have a chimney stack that sits on or across the party wall and serves both houses. Responsibility for a shared stack is usually split between the two owners, or set out in the title deeds, and the flashings on each side of the stack serve that side's roof. How it is split differs from house to house and we cannot confirm it without seeing the deeds. We identify exactly which flashings and which part of the stack the fault sits in during the inspection, which is useful if a conversation with a neighbour is needed. Where the repair means working on the shared structure itself, the Party Wall etc. Act 1996 may apply.
Can you repair the valley gutter between the two roof ranges on a villa?
Yes, this is one of the most common jobs we do on the Wandsworth Common villas. Where a main roof and a rear range meet, a valley gutter carries a lot of water, and the lead or felt lining fatigues at the laps and the outlet silts up. We lift the slates along both sides of the valley, strip the old lining back to the boards, check the sole boards and firrings for rot, and re-line in Code 5 lead with welted drips and lapped upstands. We check the full run and the outlet at each end, because on a villa the valley often has more than one weak point. This work almost always needs a scaffold for safe access.
Can you repair hip and ridge tiles?
Yes. On the hipped slopes of the Common villas and on the tiled roofs of the inter-war streets, slipped or cracked hip and ridge tiles are a routine repair. We re-bed them in fresh mortar, or fit a dry-fix ridge and hip system where the bedding has failed along a whole run and a mechanically fixed solution will last longer. Where the hip iron at the bottom of a hip has corroded or gone missing we replace that at the same time so the bottom hip tile cannot slide.
Do you remove spray foam roof insulation in Wandsworth?
Yes. It turns up on the SW18 terrace loft conversions and, now and then, sprayed right through a villa roof void near the Common, and in both cases it tends to stall a sale or a remortgage because surveyors and lenders record sprayed foam as a defect. We hand strip open-cell and closed-cell foam off the rafters and slate backs, lift out any felt and battens that come away with it, and leave the roof space open for a surveyor to inspect, with a written record for the lender. If the foam has fused to the back of the slate we quote the re-slate alongside the strip-out so it is one scaffold and one visit.
Do I need planning permission for roof work in Wandsworth?
Most like for like repairs do not need planning permission. Work that changes the roofline, adds rooflights or dormers to a front-facing slope, sits within a conservation area, or is on a street with an Article 4 direction such as parts of Magdalen Park is more likely to need consent, and on a flat or maisonette you will usually also need the freeholder's permission regardless of planning. We flag anything that may need consent during the inspection so you can check with the London Borough of Wandsworth before proceeding, rather than assuming a straightforward repair and finding out otherwise once the job has started.
Do you work with managing agents and residents' management companies in Wandsworth?
Yes. Between the mansion blocks around the Common and on East and West Hill, the converted-villa flats and the riverside schemes at Battersea Reach and Riverside Quarter, a lot of our SW18 work is communal. We write the specification and costings so they carry a Section 20 leaseholder consultation, produce condition reports and reserve-fund figures for forward planning, and will attend a directors' or residents' meeting. Flat roof renewal, parapet and valley work and rolling maintenance on communal roofs are routine for us across the borough.
Can roof repairs be carried out without scaffolding in Wandsworth?
Isolated slate or ridge repairs on a cottage or a terrace can often be done from a roof ladder or a tower. Valley, hip, turret, parapet and shared-stack work, and almost any job on the large villa roofs around the Common, needs a scaffold for safe access. On the Trinity Road, Garratt Lane and York Road red routes that also means a scaffold licence and a controlled-parking bay suspension from LB Wandsworth, which we arrange before we start. We plan the scaffold to be up for the shortest time possible and check rear access and neighbour agreements where it has to bridge two properties.
Do you offer a roof survey before buying a Wandsworth property or converting a loft?
Yes. We inspect roofs for buyers before exchange and for owners scoping a loft conversion who need to know what the existing roof is like before the drawings are done. On a villa the survey covers the hips and ridges, the valleys between ranges, the turret and bay lead, the stacks, the parapet and box gutters and any signs of water ingress; on a terrace it covers the slate, the concealed valley and the flashings. A written report follows, which is useful evidence for a buyer negotiating or for an architect planning the roofing element of a conversion.