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Lancashire · BB9

Flat roof junction and flashing repairs in Nelson

If you're in Nelson and dealing with a leak where the roof meets the lantern, we can help. We re-make the membrane, trims and flashing where the flat roof meets the lantern kerb, and confirm the fixed price in writing before we start.

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We carry out flat roof junction and flashing repairs in Nelson and across the BB9 area. The junction where the flat roof covering meets the lantern kerb is a weak point on many extensions.

Newly trimmed flat roof junction and flashing tape around a roof lantern kerb

What you might be seeing

  • Splits, blisters or lifted edges in the roof covering by the kerb
  • Missing or loose edge trims and flashings
  • Ponding on the roof next to the lantern

What usually causes it?

Cracked GRP

Fibreglass roofs can crack at the kerb corner where movement concentrates.

Missing trims

Without a trim or flashing to protect the top edge, water gets in behind the membrane.

Covering Nelson and nearby

Damp, mild winters keep moss and algae growing on flat roofs and lantern frames, which holds water against seals and blocks weep slots. Regular clearing makes a real difference in wetter areas.

We cover Nelson as part of Lancashire, about 21 miles from Preston.

If you're just outside Nelson, we also cover Colne (2 miles), Burnley (3 miles), Accrington (8 miles).

What should you expect to pay in Nelson?

Guide price, per lantern£245–£695 ex VAT£294–£834 inc VAT

Guide price for flat roof junction and flashing repairs: £245–£695 ex VAT (£294–£834 inc VAT), per lantern. Towers or scaffold, where needed, are priced into the quote. Your fixed price is confirmed in writing before any work starts.

Do you need permission in England?

Straightforward repairs — resealing, gaskets, cappings, eaves and like-for-like parts — don't normally need building regulations approval in England. Replacing the whole lantern or enlarging the opening is different and falls under the Building Regulations 2010; we confirm in writing which route applies before any replacement. Listed buildings need listed building consent from the local council for alterations, and conservation areas can have extra controls; like-for-like repairs are treated differently from changes, so check with the council's conservation officer first.

How does it work?

  1. Send photosWhatsApp or upload a few photos and tell us when it leaks.
  2. Guide priceWe reply with a guide price and whether a visit is needed.
  3. Fixed price in writingYou approve the price and the date before anything starts.
  4. Repair and testWe fix what's failed, water-test where it matters, and send photos.

Flat roof junction and flashing repairs in Nelson: questions

Do you need to visit to price flat roof junction and flashing repairs?

Not always. Clear photos are often enough for a guide price. Where the cause isn't obvious, a visit to inspect and water-test is charged from £145 ex VAT, confirmed before we come.

Which places near Nelson do you cover?

As well as Nelson, we cover nearby Colne, Burnley, Accrington, Rawtenstall and the rest of Lancashire.

Do you repair the whole flat roof?

We repair the area around the lantern. If the wider roof is failing we'll tell you and can quote, but we won't push a new roof if a local repair will do.

What does a junction repair cost?

Usually £245–£695 ex VAT, confirmed in writing before work starts.

Other lantern repairs in Nelson

Flat roof junction and flashing repairs near Nelson

More about flat roof junction and flashing repairs · All roof lantern repairs in Nelson

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