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Kent · BR8

Roof lantern replacement in Swanley

Dealing with a lantern that's past repair in Swanley (BR8)? We replace lanterns that are beyond economic repair, checking the kerb and re-making the junction, with a fixed price agreed in writing first.

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In Swanley, as everywhere, we're repair-first, but some lanterns are past it: distorted frames, rot through the main bars, or most of the glass failed. Send photos and we'll tell you what we think has failed.

Two installers lowering a new aluminium roof lantern onto a prepared timber kerb

Signs you need roof lantern replacement

  • Distorted or sagging frame
  • Rotten timber throughout
  • Repeated leaks after previous repairs

Common causes we find

Structural damage

Impact or movement distorts the frame.

Rot

Timber lanterns left unmaintained.

Roof lanterns in Swanley

Even in drier areas, one heavy downpour with blocked eaves is enough to overflow a lantern indoors. Clearing the eaves channel is the simplest prevention there is.

Coastal wind drives rain hard against lanterns, so cappings and ridge seals on the seaward face take the most punishment.

From Maidstone to Swanley is roughly 17 miles — all part of the Kent area we cover.

Neighbouring places we cover include Bexley (3 miles), Dartford (4 miles), Welling (5 miles).

How much should it cost?

Guide price, supplied and fitted£1,995–£4,995 ex VAT£2,394–£5,994 inc VAT

Typical range: £1,995–£4,995 ex VAT, which is £2,394–£5,994 with VAT, supplied and fitted. 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.

Roof lantern replacement in Swanley: questions

Do you need to visit to price roof lantern replacement?

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.

Can you repair a lantern someone else installed in Swanley?

Yes. We repair lanterns whoever fitted them. If yours is still under the installer's warranty, contact them first so you don't affect it.

How much does a replacement roof lantern cost?

Standard sizes typically £1,995–£4,995 ex VAT supplied and fitted; bespoke sizes and kerb rebuilds are priced on survey. You get the fixed price in writing first.

Can the new lantern use the existing opening?

Usually, if the kerb is sound and the size suits a standard or made-to-measure lantern.

Other lantern repairs in Swanley

Roof lantern replacement near Swanley

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