Lead flashing failure is the most common cause of persistent roof leaks on Sevenoaks period properties. North downs ridge wind exposure accelerating flashing failure is the primary accelerant in Sevenoaks. We replace chimney aprons, step flashings, valley lead and dormer junctions — Code 5 as standard on all exposed positions. Free diagnosis visit. 9 miles north-west from Tonbridge.
Lead is where most roofs actually leak — at chimneys, valleys, abutments and dormers — and split or lifted lead is a common, fixable cause. In Sevenoaks, the Victorian and Edwardian villas and period stock are where we see it most.
When it is not the answer: If the surrounding covering is also spent, renewing lead in isolation only buys time — we’ll tell you if that’s the case. Read the full guide.
Leadwork usually needs a tower or scaffold for safe access to the junction being dressed. Scaffold is specified for: chimney, valley and abutment leadwork at height - always itemised in your written quote, never a hidden extra, and we arrange it.
Sevenoaks is rich in Victorian and Edwardian villas, period and conservation stock and larger detached homes, many in clay tile and natural slate, so matching materials and careful access to tall roofs are routine here. Pavement scaffold and skip permits go through Sevenoaks District Council; allow a few working days on streets like St John’s Hill, Dartford Road, Bradbourne Vale Road where space is tight.
A contained, tidy job at the junction being worked; little indoor disruption and no need to be home. You do not need to stay home for external work - we just need power and access agreed in advance.
Lead is dressed and pointed in dry weather so the joints and mortar set correctly. On the elevated greensand ridge beside Knole, Sevenoaks is both wind-exposed and heavily treed, so wind-lifted tiles and leaf-blocked valleys are the two recurring themes.
Sevenoaks’s the Victorian and Edwardian villas and period stock bring their own lead flashing patterns. On the elevated greensand ridge beside Knole, Sevenoaks is both wind-exposed and heavily treed, so wind-lifted tiles and leaf-blocked valleys are the two recurring themes. Sevenoaks is rich in Victorian and Edwardian villas, period and conservation stock and larger detached homes, many in clay tile and natural slate, so matching materials and careful access to tall roofs are routine here. On streets like St John’s Hill, Dartford Road, that shapes both the fault we expect and how we get to it safely — which is why every Sevenoaks quote starts with a proper look at the roof, not a phone estimate.
Before we price a lead flashing job in Sevenoaks, we check the roof properly. Sevenoaks is rich in Victorian and Edwardian villas, period and conservation stock and larger detached homes, many in clay tile and natural slate, so matching materials and careful access to tall roofs are routine here. We trace the fault to its source, note the safe access a street like Bradbourne Vale Road allows, and set out the fix in a written, itemised quote. Your work is covered by a written 10-year workmanship guarantee, transferable if you sell, with manufacturer warranties on any new materials on top; storm and impact damage we document separately for your insurer.
Covering TN13, TN14 and surrounding postcodes.
Lead flashing work in Sevenoaks requires correct specification — Code 3 on an exposed Sevenoaks chimney fails within 10 years. We specify correctly by default.
The apron flashing — front face of the chimney — takes the highest weather loading in Sevenoaks. Code 5 (2.24mm) minimum. Welted joints on all lap positions. Correctly chased into the mortar joint above.
Step flashings up the chimney sides in Sevenoaks require soakers under each tile course and correctly-overlapping lead steps above. We install to Lead Sheet Association specification throughout.
Open valley lead on Sevenoaks properties — Code 4 minimum, Code 5 on steep-pitch high-flow valleys. Welted cross-joints every 1.5m maximum. Correctly lapped under tile courses.
Dormer cheek and apron flashings on Sevenoaks properties require careful dressing to the dormer frame and underlying tile. Failure at dormer flashings is common on 1970s-90s extensions throughout Sevenoaks.
If you have a persistent leak in Sevenoaks that has not been correctly diagnosed, we carry out an on-roof investigation and identify the flashing or tile cause. Free investigation with any repair booking.
We specify the correct lead code for every position — Code 3 is too thin for exposed work anywhere in Sevenoaks. Every quote states the lead code and joint method. If a quote doesn't — ask.
Lead flashing failure in Sevenoaks is accelerated by North Downs ridge wind exposure accelerating flashing failure. The housing stock — Victorian terraces on London Road — means the majority of lead work we attend in Sevenoaks is on pre-1940 properties where the original flashing specification was modest and has not been upgraded since.
The most common pattern on Sevenoaks properties: Code 3 flat-lapped lead installed 10-15 years ago is now splitting at lap joints and admitting water that tracks to a ceiling drip remote from the actual entry point. The correct fix is Code 5 with welted joints and a correctly chased top edge — this lasts 40 years in Sevenoaks's conditions rather than 10.
Call 0173 224 1138 for a free, no-obligation survey and written quote. We cover Sevenoaks and the surrounding area from our Tonbridge base.
Typical price ranges. All quotes are free, written and fixed-price. Call 0173 224 1138.
| Job Type | Typical Cost | Timescale |
|---|---|---|
| Chimney apron — Code 5 | £280–£480 | Half–full day |
| Full chimney system — Code 5 throughout | £600–£950 | 1–2 days |
| Valley re-lead — Code 5 (per metre) | £150–£250 | varies |
| Dormer apron + sides | £450–£850 | 1 day |
| Flashing re-chase + re-secure only | £150–£300 | Half day |
| Leak investigation + report | Free with repair booking | 1–2 hrs |
“Honest about what did and didn’t need doing on the lead flashing — talked me out of the expensive option the last firm pushed. Refreshing in Sevenoaks.”
“Booked lead flashing and they turned up when they said, did what they said, and charged what they quoted. Rare these days. Genuinely local and reliable.”
“Needed lead flashing and had three quotes. This lot were the only ones who got up and actually looked. Fair price, proper job, and it’s held up since.”
We’re out across Sevenoaks constantly. The TN13, TN14 area and the villages around it are our patch, so a Sevenoaks callout rarely means a long wait.
On Sevenoaks roofs it’s the stock, the height and the scale of the fault. the Victorian and Edwardian villas and period stock have their own quirks, so we survey first and give you an itemised figure.
Rarely a long one. We keep the Sevenoaks diary realistic rather than optimistic, so the date we give for your lead flashing is one we’ll keep.
A 10-year workmanship guarantee in writing on all Sevenoaks work. Storm and impact damage is an insurance matter, and we document it for your claim.
Only where the job needs safe standing time — chimney, valley and abutment leadwork at height. It’s always itemised in your Sevenoaks quote and arranged by us, never a hidden extra.
At chimneys, valleys and wall abutments. On Sevenoaks’s the Victorian and Edwardian villas and period stock, old lead splits and lifts, and on the elevated greensand ridge beside knole finds every gap.
Yes — we dress Sevenoaks leadwork to the right code (typically 4 and 5) so it lasts, rather than the thin, short-life lead a rushed job uses.
No call-out fee. No obligation. We serve Sevenoaks from our Tonbridge base.
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