Roof Repairs › Cardiff › Chimney Flashing Repairs
This page is about chimney flashing repairs here specifically — what the fault looks like on these bay-fronted slate terraces, why it happens in this part of South Wales, and what putting it right actually involves.
Call 07868 857692 to arrange an assessment in Cardiff, or message us on WhatsApp.
Stack Junctions on Cardiff Roofs
Where a chimney passes through a roof there are four separate weatherings doing four separate jobs, and on a roof sharing its valleys and its stacks they are an apron at the front, step flashings and soakers up the sides, and a back gutter behind. On these bay-fronted slate terraces all four are the same age as the roof. On a roof sharing its valleys and its stacks a leak near a chimney is far more likely to be one of those four than the stack itself.
What This Covers
- Chimney leaks
- Failed flashing
- Water around chimney stacks
- Water ingress connected with the affected detail
- Localised weathering or damage requiring repair
The Back Gutter
The back gutter behind the stack is the detail that fails most, because it collects everything driven rain off the Channel sends down the slope above it. With wind enough to find a slipped slate that is a great deal of water arriving in a small tray, and on these bay-fronted slate terraces it is also where leaves and moss collect and sit.
Why It Is Awkward
A stack junction sits mid-slope with a vertical obstruction in the middle of it, so with access tight for scaffold it usually needs a scaffold rather than a ladder to be worked on properly. Because a defect here is often shared with next door, doing the flashing and any stack repointing in one visit saves the access cost twice.
What a Proper Job Looks Like
Step flashings chased individually into the bed joints, soakers interleaved with the covering, an apron at the front and a properly formed back gutter — on a roof sharing its valleys and its stacks that is the whole detail and nothing less weathers a stack. A continuous strip of lead run round the stack and sealed with mastic is what we are usually removing, and with driven rain off the Channel it buys about a winter.
What Our Chimney Flashing Repairs Service Includes in Cardiff
- Step flashings chased individually into the bed joints
- Soakers interleaved with slates or tiles
- Front aprons and properly formed back gutters
- Correct lead codes with movement allowed for
- Previous mastic and tape repairs cut out
- Stack pointing and flaunching checked at the same time
Related Roof Repairs in Cardiff
Chimney Flashing Repairs in Cardiff — Common Questions
What are common signs that I may need chimney flashing repairs in Cardiff?
Where a chimney passes through a roof there are four separate weatherings doing four separate jobs, and on these bay-fronted slate terraces they are an apron at the front, step flashings and soakers up the sides, and a back gutter behind. With wind enough to find a slipped slate that is a great deal of water arriving in a small tray, and on a roof sharing its valleys and its stacks it is also where leaves and moss collect and sit.
Can a small defect cause an internal leak?
Yes. The kind of defect behind chimney flashing repairs lets water into the structure on these bay-fronted slate terraces, and it can travel a long way before it shows on a ceiling. That is why the source of a chimney flashing repairs problem is traced rather than guessed at from the mark inside.
Will the whole roof need replacing?
Usually not. Chimney flashing repairs is repair work, and on a roof sharing its valleys and its stacks the covering around the defect is generally sound — whether a repair is the right answer depends on how far the deterioration has gone beyond the part you can see.
Can you inspect the problem before recommending work?
Yes, always. Given a defect here is often shared with next door, a chimney flashing repairs job on these bay-fronted slate terraces is looked at before anything is recommended, and you get told what was actually found rather than a figure guessed from the pavement.
Do you cover other roof repairs in Cardiff?
Yes — chimney flashing repairs is one of twenty-five roof repairs we carry out on a roof sharing its valleys and its stacks, and across the surrounding area including Roath, Canton, Cathays, Splott and Llanishen.
Do you cover Cardiff and the surrounding area?
Yes — chimney flashing repairs throughout Cardiff and the places around it, including Roath, Canton, Cathays, Splott and Llanishen.
What does a repair like this cost?
Two things set the figure for chimney flashing repairs: how far the defect has actually gone, which needs somebody to look at it, and the access. With access here restricted by controlled parking and narrow frontages, that second one moves the price of chimney flashing repairs more than the materials do, and it is why a figure over the phone is a guess.
Can you look at other things while you are there?
Yes, and it is worth it — given a defect here is often shared with next door, safe access to the roof is most of what a visit costs, so anything else wanting attention is far cheaper dealt with on the same day as the chimney flashing repairs.
Contact T&T Roofing About Chimney Flashing Repairs in Cardiff
We carry out chimney flashing repairs across Cardiff and the area around it including Roath, Canton, Cathays, Splott and Llanishen. For chimney flashing repairs, a photograph of the affected part of the roof and a short description of what it is doing is the quickest start — given a defect here is often shared with next door, those two are what make a figure accurate rather than provisional.
Tell us what the roof is doing in Cardiff and we will look at it. Call 07868 857692, message us on WhatsApp or use the form below.