Roof Repairs › St. Mellons › Felt Roof Repairs
This page is about felt roof repairs here specifically — what the fault looks like on these late-twentieth-century estate roofs, why it happens in this part of South Wales, and what putting it right actually involves.
Call 07868 857692 to arrange an assessment in St. Mellons, or message us on WhatsApp.
Felt Roofs on St. Mellons Properties

Felt is the oldest flat roofing system still in common use and there is a great deal of it on a uniform interlocking tile covering, mostly over garages, extensions and outbuildings. Modern torch-on felt is a serious material and the thin mineral felt on a 1970s garage is not, and on these late-twentieth-century estate roofs both are still in service side by side.
What This Covers
- Torn felt
- Blistering felt
- Felt roof leaks
- Water ingress connected with the affected detail
- Localised weathering or damage requiring repair
How Felt Fails
Felt becomes brittle as the bitumen loses its oils, and with persistent damp off the levels the wet-dry-frost cycling accelerates it. On a uniform interlocking tile covering the pattern is cracking along the laps first, then blistering where moisture is trapped beneath, then splitting at the upstands where the material has to bend.
Assessing a Felt Roof

Felt has to be walked and looked at closely rather than viewed from a window, and where access is flat, with driveways and room almost everywhere that is the part of the job worth planning. With access as easy as it gets on this list, getting onto a garage or extension roof on these late-twentieth-century estate roofs is usually straightforward, which is one thing in its favour.
Repair or Re-Cover
A torch-on patch over a clean sound substrate is a real repair on a uniform interlocking tile covering and will last. Patching brittle felt that has reached the end of its life is not — the patch holds and the felt next to it splits instead, and with low-lying, sheltered conditions that happens by the following winter. We will tell you which of the two you have, because on these late-twentieth-century estate roofs that answer changes what is worth spending.
What Our Felt Roof Repairs Service Includes in St. Mellons
- Torch-on patch repairs to sound felt
- Cracked and split laps re-sealed
- Blisters cut out, dried and made good
- Upstands, drips and edge details re-formed
- Deck checked before any repair is quoted
- Full re-cover in felt, EPDM or GRP where patching is not honest




Related Roof Repairs in St. Mellons
Felt Roof Repairs in St. Mellons — Common Questions
What are common signs that I may need felt roof repairs in St. Mellons?
Felt is the oldest flat roofing system still in common use and there is a great deal of it on a uniform interlocking tile covering, mostly over garages, extensions and outbuildings. On these late-twentieth-century estate roofs the pattern is cracking along the laps first, then blistering where moisture is trapped beneath, then splitting at the upstands where the material has to bend.
Can a small defect cause an internal leak?
Yes. The kind of defect behind felt roof repairs lets water into the structure on a uniform interlocking tile covering, and it can travel a long way before it shows on a ceiling. That is why the source of a felt roof repairs problem is traced rather than guessed at from the mark inside.
Will the whole roof need replacing?
Usually not. Felt roof repairs is repair work, and on these late-twentieth-century estate roofs 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 the same failures repeat across whole streets, a felt roof repairs job on a uniform interlocking tile covering 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 St. Mellons?
Yes — felt roof repairs is one of twenty-five roof repairs we carry out on these late-twentieth-century estate roofs, and across the surrounding area including Old St Mellons, Rumney, Trowbridge, Pontprennau and Marshfield.
Do you cover St. Mellons and the surrounding area?
Yes — felt roof repairs throughout St. Mellons and the places around it, including Old St Mellons, Rumney, Trowbridge, Pontprennau and Marshfield.
What does a repair like this cost?
Two things set the figure for felt roof repairs: how far the defect has actually gone, which needs somebody to look at it, and the access. With access here flat, with driveways and room almost everywhere, that second one moves the price of felt roof 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 the same failures repeat across whole streets, 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 felt roof repairs.
Contact T&T Roofing About Felt Roof Repairs in St. Mellons
We carry out felt roof repairs across St. Mellons and the area around it including Old St Mellons, Rumney, Trowbridge, Pontprennau and Marshfield. For felt roof repairs, a photograph of the affected part of the roof and a short description of what it is doing is the quickest start — given the same failures repeat across whole streets, those two are what make a figure accurate rather than provisional.
Tell us what the roof is doing in St. Mellons and we will look at it. Call 07868 857692, message us on WhatsApp or use the form below.
