Chimney & Vent Flashing · All Sussex

Roof Leaking Around the Chimney? We’ll Stop It at the Stack.

A roof leaking around the chimney or a leaking roof vent flashing is one of the most common causes of damp inside. Call your local Sussex roofer and we’ll trace it, renew the flashing and stop the water for good.

  • Chimney & vent flashing specialists
  • £0 call-out fee · no obligation
  • 10-year written guarantee on every repair
Based in Shoreham-by-Sea, covering Brighton, Worthing, Crawley and all of Sussex

Emergency line

Speak to a Sussex roofer now

07793 436 150

Call Now
  • A real local roofer answers
  • Honest advice over the phone, free
  • £0 call-out fee, no obligation
6 reviews

“Liam was incredibly knowledgeable and has done a fantastic job of relaying a new flat roof for us!”

Verified Homeowner, RH10

“Liam Funnell of LF Flat Roofing was helpful and efficient and did a good repair.”

Verified Homeowner, RH10

“Liam was very quick to quote, gave a good price and got our flat roof repaired quickly. Very good experience.”

Verified Homeowner, BN11

“Liam was courteous, punctual, competent and a pleasure to have around. Would definitely use him again and have no hesitation in recommending him to others.”

Verified Homeowner, BN2

“Liam cares… That’s worth a lot. Carried out the work without any hassle or fuss. Excellent attitude , I will be using his services again.”

Verified Homeowner, BN5

“100% reliable, very professional. Arrived promptly and tidied up afterwards. Would recommend and use again without hesitation.”

Verified Homeowner, BN5
Chimney Flashing Specialists Fast Response Local Sussex Roofer Icopal-Approved £0 Call-Out 10 Year Guarantee Fully Insured All Sussex Covered

Roof leaking around the chimney?

If your chimney or vent is doing any of these, call us

The flashing around a chimney or vent seals the joint where it passes through the roof, and it’s where most leaks start. A leak around the chimney breast is a quick job for a specialist but a slow disaster if it’s left. If you recognise any of these, pick up the phone.

Roof leaking around chimney breast

Damp is showing on the chimney breast or the ceiling right below the stack.

We trace it to the failed flashing and renew it so the leak stops at source.

Roof vent flashing leaking

Water is tracking in around a vent, flue or pipe passing through the roof.

We re-seal or renew the collar around the vent so it’s watertight again.

Cracked or lifted chimney flashing

The lead around the stack has split, slipped or pulled away from the brickwork.

We cut out and replace the failed lead, or re-dress it, and seal it properly.

Failed pointing & soakers

The mortar holding the flashing has crumbled and the soakers have failed.

We rake out, renew the soakers and re-point the flashing line cleanly.

A botched previous repair

Someone smeared sealant or flashband around the stack and it’s leaking again.

We remove the bodge and carry out a proper chimney flashing repair that lasts.

Damp inside near the stack

Staining or damp is creeping down the wall or ceiling beside the chimney.

We find where the water gets in and renew the flashing before it spreads.

The damage only grows, act now

Don’t let it track in further

A leaking chimney today is a stained ceiling tomorrow

Water getting behind the flashing doesn’t stop on its own, it rots timber and ruins plaster. Pick up the phone and we’ll trace it and seal it properly.

  • A real roofer answers
  • £0 call-out fee
  • Covering all of Sussex

The right approach

We trace the chimney leak, then fix it properly

A roof leaking around the chimney rarely shows where it gets in, water runs along the lead and timbers before it drips inside. We find the actual failure first, whether it’s the chimney flashing, the soakers or a vent collar, then carry out a proper repair that lasts.

Lead is a craft material and it needs working properly, dressed into the joint, fixed and sealed so it moves with the roof instead of cracking. We cut out failed sections, re-dress or renew the lead around the stack, renew the soakers and re-point cleanly. No smear of sealant or strip of flashband over the top.

As Icopal-approved contractors, every chimney flashing repair is carried out to the same standard as a full installation. Photo records are taken before, during and after, ideal if you need to make an insurance claim.

  • Real source traced, not just the damp on the chimney breast
  • Lead and soakers cut out, renewed, never bodged
  • Vent and pipe collars re-sealed or renewed
  • Water-tested and guaranteed in writing
Roofer on ladder installing shingles on residential roof with brick chimney on clear sunny day.

Icopal-approved repair. Water-tested on completion.

Chimney flashing replacement

Stepped lead, soakers and back gutters around the stack stripped and renewed.

Vent & pipe collars

Perished seals around vents, flues and soil pipes re-sealed or renewed.

Abutment flashing

Where a roof meets a wall, the lead re-dressed and chased back into the joint.

Re-pointing & soakers

Cracked lead cut out and replaced, flashing line raked out and re-pointed.

Local
Based in Shoreham
15+
Years in Sussex
5.0★
Checkatrade rating
£0
Survey call-out fee

How it works

What happens when you call your local roofer

Step 01

Call

You call, a real local roofer answers. Tell us where the leak is showing and where you are in Sussex, and we’ll arrange a visit.

Step 02

We attend

We come out, get on the roof and find the failed flashing, whether it’s the chimney, the soakers or a vent collar.

Step 03

Repair

We cut out, re-dress or renew the lead and re-point the joint, then water-test it on completion.

Step 04

Handover

You get a 10-year written guarantee and photos of the finished work. If that area leaks again in the period, we come back free.

Local, trusted, guaranteed

Chimney & vent specialists

Leaking around the stack? We’ll put it right

Chimney flashing, soakers or a vent collar, a proper repair stops the leak for years. Call your local Sussex roofer and we’ll sort it.

  • 10-year written guarantee
  • Proper lead work, no bodges
  • Photos for your insurer

What you get

Why Sussex homeowners trust us with their chimney work

Proper chimney work, not a bodge

Most chimney leaks we’re called to were last ‘fixed’ with a smear of sealant or a strip of flashband. We do it the right way, renewing the lead and soakers so the stack stays watertight for years, not months.

10-yr written guarantee · 5.0 Checkatrade

Local Sussex roofer

Based in Shoreham and covering all of Sussex, so we can get to you without the long wait.

We find the actual source

The damp patch is rarely where the water gets in. We trace the flashing leak properly so the repair lasts.

Honest repair vs replace

If a repair will genuinely fix it, we say so. If the covering is finished, we tell you that too.

Tidy, professional work

We protect your property, work cleanly and take all waste away on completion.

Photos for your insurer

Every stage documented, before, during and after, ready to support an insurance claim.

Recent work

Emergency repairs across Sussex

A few recent jobs. Every repair is diagnosed at source, water-tested and handed over with full photo records.

Burgess Hill

Garage flat roof · EPDM re-roof

Steyning

Rear extension · warm roof + EPDM

Newhaven

Outbuilding · full strip & EPDM

Real customers

What Sussex homeowners say about LF Flat Roofing

5.0 Checkatrade
RESTEC Roof of the Month · Nov 2025

“Liam was incredibly knowledgeable and has done a fantastic job of relaying a new flat roof for us!”

Homeowner RH10
Verified

“Liam Funnell of LF Flat Roofing was helpful and efficient and did a good repair.”

Homeowner RH10
Verified

“Liam was very quick to quote, gave a good price and got our flat roof repaired quickly. Very good experience.”

Homeowner BN11
Verified

“Liam was courteous, punctual, competent and a pleasure to have around. Would definitely use him again and have no hesitation in recommending him to others.”

Homeowner BN2
Verified

“Liam cares… That’s worth a lot. Carried out the work without any hassle or fuss. Excellent attitude , I will be using his services again.”

Homeowner BN5
Verified

“100% reliable, very professional. Arrived promptly and tidied up afterwards. Would recommend and use again without hesitation.”

Homeowner BN5
Verified

Questions

Emergency flat roof repair, your questions answered

A roof leaking around the chimney is almost always the flashing, the lead and soakers that seal the joint where the stack passes through the roof. They crack, slip or perish with age and let water track down the chimney breast. We trace it and renew the flashing to stop it at source.
Yes. A leaking roof vent flashing is usually a perished collar or seal where a vent, flue or soil pipe passes through the roof. We re-seal or renew the collar so it's watertight again, most are a quick job for a specialist.
We do. Damp on a chimney breast nearly always comes from failed flashing up at the stack, not the brickwork itself. We find the failure, renew the lead and soakers, and water-test it, so the chimney breast leak repair actually lasts.
It depends on the size of the stack, how much lead and how many soakers need renewing, and access. Call us and we'll come out, take a look and give you a fixed written quote for free, with no obligation.
It might buy a few weeks, but sealant and flashband don't move with the roof, so they crack and leak again. A proper chimney flashing replacement means renewing the lead and soakers so the joint stays watertight for years.
No. Coming out, finding the source and quoting are all free. You only pay if you decide to go ahead with the repair.
10 Year Written Guarantee
In writing on every roof we install.
The LF Flat Roofing team

Our promise to you

You risk absolutely nothing

Picking up the phone is the easy, zero-risk first step. Here’s exactly what you’re agreeing to, and what you’re not.

A real local roofer answers

Call us and speak to a Sussex roofer who knows chimney and flashing work, not a call centre.

£0 call-out, free quote

We come out, find the source and quote for nothing. No fee, no catch.

No pressure, no upselling

If a repair will do, we’ll tell you. The decision is always yours.

10-year written guarantee

Water-tested on completion and guaranteed in writing for a decade.

Call About Your Chimney Leak: 07793 436 150

Emergency flat roof repair · all Sussex

Roof leaking around the chimney? Let’s sort it

Speak to a real Sussex roofer, get honest advice on the spot and we’ll make your roof watertight. Can’t talk right now? Leave your details and we’ll call you straight back.

  • A real roofer answers
  • £0 call-out fee, free written quote
  • Chimney flashing, soakers & vent collars
  • 10-year written guarantee on every repair
  • Photo records for your insurance claim

07793 436 150

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