Flat Roof Repairs in Dublin, Sorted Properly
Leaking felt, ponding water, blistered coverings and failed upstands put right on extensions, garages and dormers across Dublin, with a free inspection and a fair written price first.
Reliable Flat Roof Repairs Across Dublin Since 1989
Flat roof repairs in Dublin are one of the calls we take most, because so many homes here have a flat roof over a rear extension, a kitchen, a garage or a dormer. When one of those starts to leak, the water shows up fast on the ceiling below, so it rarely waits for a convenient moment. We have been putting flat roofs right since 1989, and the first job is always the same, work out why the covering has failed rather than smearing sealant over the nearest wet patch.
A flat roof is only as good as its covering and its edges. Old bituminous felt goes brittle and cracks, seams and laps lift, and water finds its way in at an upstand, a parapet or where the roof meets a wall. Ponding, where water sits in a dip instead of draining away, slowly wears a covering out from above. Because the whole surface is close to level, a small fault can let a surprising amount of water through, which is why a proper look beats a guess every time.
Every flat roof repair starts with a free inspection and a written price you agree before we begin. Where a patch will genuinely hold, we patch it. Where the covering is near the end of its life, we will say so honestly rather than take your money for a repair that fails next winter. We carry full insurance, back our work with a twenty-year guarantee, and hold a 5.0 rating from forty-one Google reviews, because a flat roof done right should be something you can forget about for years.
Not every flat roof is the same job. A small porch or bay-window roof is a world away from a large warm-deck extension roof with rooflights and a parapet, and the right repair depends on knowing which you have in front of you. We take the time to work that out, because a covering and a detail that suit one roof can be wrong on another. Getting it right the first time is what turns a flat roof from a recurring worry into something you simply stop thinking about, and that is the whole point of doing it properly.
The Warning Signs of a Failing Flat Roof
A flat roof usually tells you it is struggling well before the ceiling below gives up. Spotting it early is the difference between a small repair and a soaked room. Here is what to watch for on a Dublin flat roof. Most of these show up on the ceiling or the surface long before the deck gives way, so a quick look pays off.
A stain on the ceiling below
A spreading damp patch or a brown ring on the ceiling under a flat roof usually means the covering has already let water in. Because the roof is level, the leak can be well away from the stain, so it takes tracing.
Blistered or bubbled covering
Bubbles and blisters in felt mean moisture is trapped under the surface and the covering is breaking down. Left alone, those blisters split and open the roof up to the next spell of rain.
Cracks, splits and lifted seams
Old felt goes hard and cracks with age, and the seams where sheets overlap start to lift. These joins and splits are the most common place a flat roof leaks, and they only widen over time.
Ponding water that never drains
Water that sits in a dip for days after rain, instead of running to the outlet, wears a flat roof out from above and points to a fall or a drainage problem worth putting right.
Failed upstands and flashing
Where a flat roof meets a wall, a parapet or a rooflight, the upstand and its flashing take the strain. Cracked or lifted detailing here lets water track straight down inside, often a long way from the fault.
Green growth and a spongy deck
Moss and algae holding damp on the surface, or a soft, springy feeling underfoot, suggest water has been sitting long enough to reach the deck below. That is a sign to act sooner rather than later.
The Flat Roof Repairs We Carry Out
Flat roof repairs run from a quick patch on a garage to a full re-cover on an extension, and we handle every common covering. Whatever the system, we fix the cause and dress the edges properly, because that is where flat roofs really fail. Where a repair no longer makes sense, a fresh re-roof is the honest answer. We work to the weather and leave the roof watertight at the end of every day.
- Repairing and re-covering felt and built-up roofs with a modern torch-on system that far outlasts old felt
- Patching, re-laminating or laying fresh fibreglass and GRP where the top coat has crazed and worn
- Fitting EPDM and single-ply membrane roofs, with the seams and detailing dressed down properly
- Tracing and sealing splits, blisters and failed laps before water reaches the deck and timbers
- Re-dressing upstands, parapets and rooflight kerbs to keep the awkward edges watertight
- Bringing rear-return and extension flat roofs, so common on Dublin homes, back to fully watertight
Roof leaking right now?
A live leak or storm damage should not wait. Message us a photo on WhatsApp or call the office, and we will get you sorted. We run a 24/7 emergency service across Dublin.
How Our Flat Roof Repair Service Works
A flat roof repair should be straightforward and free of nasty surprises. From your first call to the finished job, here is how we work.
Your call and a free inspection
Tell us where the leak is showing and we arrange a free inspection to suit. If water is coming in, we treat it as urgent, because a flat roof leak spreads across a ceiling quickly once it starts.
Finding where the water gets in
We get up on the roof and check the covering, the seams, the upstands and the outlet, then follow the fault back to source. On a near-level roof, guessing is how repairs fail, so we look properly before quoting.
An honest written price
You get a clear written price, and an honest steer on whether a repair will hold or whether a re-cover is the better value. There is no pressure to go ahead, and no figure that climbs once we start.
The repair, done and dressed
We carry out the repair with the right system for your roof and dress every edge and upstand properly, so the fix lasts rather than lifting again at the first cold snap. Small jobs are often done the same visit.
A final check and a tidy site
We check the repair drains and holds, clear away every offcut, and leave the place as we found it. The work is backed by our twenty-year guarantee, so it is right long after the van has gone.
What Flat Roof Repairs Cost in Dublin
Flat roof repair prices in Dublin depend on the covering, the size of the roof and how much of it has failed. A patch on a small garage roof is a modest job, while re-covering a full-width extension in fibreglass or EPDM is a bigger one. Rather than a headline figure that means nothing until we see it, we give a fair written price after a free inspection. These are the things that move it.
Patch repair or full re-cover
Sealing a single split or lap costs far less than stripping and re-covering the whole roof. The more of the surface that has gone, the more materials and time the job takes.
The covering and system
Felt, EPDM, fibreglass and single-ply sit at different price points, and matching or upgrading the system affects the figure. A modern covering costs a little more up front and lasts a lot longer.
The size and access
A small garage roof is quick to reach and quick to cover, while a large flat roof, or one over a two-storey extension needing access, takes longer and costs more.
The condition of the deck
If water has reached the deck and softened the timber, that has to be made good before the new covering goes on. A good roofer flags this on the inspection rather than mid-job.
For a clearer idea before you ring, our Dublin roofing costs page sets out honest guide prices, and our guide to replacing shed and garage roof felt is a useful read on smaller flat roofs.
We Publish Our Roofing Prices
Most roofers make you chase a number. We put honest guide prices for roof repairs, flat roofs and full re-roofs right on the site, so you can budget before you ever pick up the phone. Every job still gets a free inspection and a written quote, with no pressure to go ahead.
Flat Roof Repairs Across Dublin
Flat roofs are everywhere on Dublin's housing stock, on the rear returns and kitchen extensions of the red-brick terraces in Rathmines, Ranelagh and Terenure, and across the period homes of Portobello and the city centre. After more than thirty years on these roofs we know how the older felt on them ages and where it tends to give way first, usually at the laps and the upstand against the main wall.
Out in the suburbs and along the coast the story is a little different. In north county Dublin around Malahide, Swords and Skerries, exposed wind and salt are hard on membranes and metal edge trims, while the newer extensions across west Dublin in Lucan and Blanchardstown are more often fibreglass and EPDM reaching the end of their first life. Wherever your home is, we match the repair to the covering you actually have.
Garages and single-storey extensions make up a huge share of the flat roofs we look after, and they are where the older felt tends to fail first, usually at the join with the main house wall. On newer builds and conversions across the suburbs, fibreglass and rubber over rooflights and dormers are more common, and the leaks there start at the kerbs and upstands around those openings rather than in the open field of the roof.
The promise is the same across the county. A free inspection, an honest word on whether a repair or a re-cover makes more sense, a fair written price, and edges dressed to last. If your ceiling has started to stain, our guide on what to do when your roof is leaking is a sensible first read. When you want it looked at properly, we are the family-run team Dublin homeowners trust for flat roof repairs in Dublin.
Related Roofing Services in Dublin
Roof Repairs
Slipped slates, leaks and storm damage put right, fast and tidy.
New Roofs & Re-Roofing
Full re-roofs built to last, guaranteed for 20 years.
Chimney Repairs
Repointing, flashings and rebuilds to keep water where it belongs.
Fascia, Soffit & Guttering
The edges that protect the whole roof, renewed and maintained.
Flat Roof Questions Dublin Homeowners Ask
How long should a flat roof last?
Can you repair a flat roof, or does it need replacing?
What is the best flat roof covering?
Why does water sit on my flat roof?
Do you fix flat roofs on garages and extensions?
Are you insured and is the work guaranteed?
Can I walk on my flat roof?
How do I know if my flat roof is felt, EPDM or fibreglass?
Will a new flat roof stop condensation in the room below?
Can you insulate a flat roof at the same time?
How quickly can you come out to a leaking flat roof?
Is a torch-on felt repair messy or smelly?
What Dublin Homeowners and Businesses Say
We have never asked anyone for a review, and we have never taken one down. Our perfect 5.0 rating from 41 Google reviews is simply what people wrote once the job was finished, tidied and paid for.
“I needed a roofing company to fix a major leak, and The Roofing Academy was amazing. They did the job quickly and with great attention to detail.”
Verified Google review
“The Roofing Academy is by far the best roofing service I’ve ever used. They fixed a leak and installed a new roof on time and within budget. Highly recommend them”
Verified Google review
“Great company to work with! The Roofing Academy fixed a leak in my roof quickly and professionally. I will definitely call them for any future roofing needs.”
Verified Google review
Get Your Free Dublin Roofing Quote
A free quote, a friendly local team, and a straight answer on what your roof needs.
- Free inspection and a written quote
- 20-year guarantee on our work
- Family-run since 1989, fully insured
Rated 5.0 on Google from 41 reviews