Lancashire · Chorley
Lancashire roofers covering Chorley: valleys, stacks and leaks
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- Covering Chorley and nearby
Damp on the chimney breast, or water getting in at a valley? Peak Roofing is a roofing company based in Lancashire, covering Chorley. Chorley is a wet town, and split or lifted lead round stacks and in valleys soon shows inside. That’s where we start, whether it’s an old terrace or a newer semi.

What goes wrong on Chorley roofs
In Chorley, old and new sit side by side. About a quarter of homes went up before 1919, and those older terraces are mostly slate, with lead valleys and chimney stacks shared across the party wall. Lead lasts a long time, but it splits where it was dressed tight and lifts where the wedges holding it into the brickwork have worked loose. Water then runs down behind the chimney breast. We redress or replace the lead and repoint the joint it sits in.
At the other end, 30% of homes were built from 1983 on, mostly under concrete tiles with plastic fascias and soffits. The tiles on those usually last well. The weak points are the details: the ridge, the verges and the valleys, where two slopes meet and the water from both runs down one channel. A badly laid or blocked valley on a newer house can leak just as readily as an old lead one.
So the first job is working out which kind of roof you have. A slate terrace and a tiled estate house go wrong in different places, and the fix for one would be wrong for the other. On a terrace, the stack you share with next door also needs checking from both sides, because the fault and the damp are not always in the same house.
Homes in Chorley, by type
Roof repairs in Chorley: what we check first
- Lead in valleys and flashings Heavy rain soon finds split or lifted lead, often showing up as damp on a chimney breast.
- Terrace chimney stacks Shared stacks on older terraces need sound pointing, flaunching and flashing on both sides of the party wall.
- Gutter joints and outlets In a town this wet, a leaking joint or a blocked outlet soon soaks a wall.
- Newer concrete-tiled roofs Tiles on post-1983 homes usually last well, but ridges, verges and valleys can still let water in.
Rain that keeps gutters and valleys busy
Chorley gets plenty of rain in every season, the heaviest of it in autumn and winter, and there are few weeks when a roof gets the chance to dry out properly. Gutters, valleys and flashings move a great deal of water here in a year.
A joint that drips in a shower pours in a downpour, and the wall under a leaking gutter can stay damp long enough to show inside as a stain that looks like a roof leak. That’s why we check the gutters and outlets as well as the roof.
Listed homes and conservation areas in Chorley
Chorley Council has nine conservation areas. Most are villages, such as Croston and Rivington, but St George’s Street and St Laurence’s are in the town itself. Nos. 12 and 14 Park Road, a listed pair of houses from 1824, have a slate roof hipped at one end. The boundaries of all nine are being looked at again, so they may change. Like-for-like repairs are usually fine; check the current map, and ask Chorley Council before you replace slate or tiles with something different.
Chorley Council
How a roof job runs
- Call or text Peak Roofing, or send the form, with what you can see.
- We look at the roof itself, not just the stain inside.
- You get the price before any work starts.
Roofing services covering Chorley
Questions
Chorley roofs: questions
Chorley gets plenty of rain. Are my gutters up to it?
Most are, if the joints are sound and the gutter falls towards the outlet. Where water spills over the front in heavy rain, the run may be sagging or too small for the roof above it. We replace gutters, fascias and soffits in uPVC. See guttering.
Does being in St Laurence’s conservation area change a roof repair?
Like-for-like repairs are usually fine, and mending a roof in the same materials is the normal approach in a conservation area. A change of covering, slate to concrete tiles for example, may need Chorley Council’s agreement, so ask them first. Mention St Laurence’s when you call or text.
Should an old slate roof in Chorley be repaired or replaced?
Where the slates are in good order and only a few have slipped, or a valley is leaking, a repair is usually enough. If nails have failed across whole slopes, re-slating on new battens and membrane can be the better spend. See roof repairs.
Nearby
Roofers covering towns near Chorley
Where the facts on this page come from
- ONS Census 2021, TS044 Accommodation type (Nomis), output areas in the ONS 2022 built-up area: Households by accommodation type in Chorley: 21% detached, 33% semi-detached, 33% terraced, 14% flats (17,515 households). Read 2026-11-05.
- Valuation Office Agency: Council Tax stock of properties 2026, table CTSOP4.1 (build period), LSOAs in the built-up area: Homes by build period in Chorley: 26% before 1919, 12% 1919-1939, 33% 1945-1982, 30% since 1983 (England and Wales: 21% before 1919). Read 2026-11-05.
- Met Office: Stonyhurst climate station, 1991-2020 averages: 1,314.5 mm of rain a year, 175.4 days with 1 mm or more. Read 2026-11-05.
- LUC: appointed to review Chorley’s conservation areas: Chorley Council’s nine conservation areas incl. Croston, Rivington, St George’s Street, St Laurence’s; LUC appointed for appraisals, management plans and boundary reviews Read 2026-11-05.
- planning.data.gov.uk: St George’s conservation area, Chorley: St George’s conservation area, Chorley Borough Council Read 2026-11-05.
- British Listed Buildings: 12 and 14 Park Road, Chorley: Grade II attached pair of houses, 1824, slate roof hipped at right end Read 2026-11-05.