You’ve spotted a damp patch on the ceiling. Or water is dripping through a light fitting. Or there’s a dark stain spreading across the corner of a bedroom wall while the rain hammers down outside.
Your roof is leaking — and you don’t know what to do.
First: take a breath. A leaking roof is stressful, but it’s almost always fixable, and the steps you take in the next hour will make a real difference to how much damage occurs before a roofer can get to you.
My name is Sean O’Brien. I’ve been repairing leaking roofs across County Wicklow for over two decades — in storms, after storms, in the middle of the night, and everything in between. I’ve seen what happens when homeowners handle a roof leak well, and I’ve seen what happens when they don’t. This guide will walk you through exactly what to do, in the right order, right now.
📞 If you need a roofer in Wicklow urgently, call me directly: 040450003
Before you do anything else, assess whether you have an immediate safety risk.
If water is coming through a light fitting, a ceiling rose, a fan, or any electrical fitting — turn off the electricity to that room or to the entire property at the fuse board immediately. Do not touch the light switch. Go straight to the fuse board and isolate the circuit. Water and electricity are a genuinely dangerous combination and this is non-negotiable. If you’re not sure which circuit is affected, isolate everything until you are.
Do not go onto the roof. I need to say this clearly because it’s the most common dangerous mistake homeowners make when their roof is leaking. A wet roof during or immediately after rain is slippery and unstable. The urgency you feel is real, but no temporary repair you could make from the roof surface is worth the risk of a serious fall. Leave the roof to a professional.
If the leak is severe and large volumes of water are entering the property — through a gap caused by structural damage, a fallen chimney pot, or significant storm damage — and you believe there’s a risk to the structural integrity of the property, call the emergency services before anything else.
For the vast majority of leaks — a drip through the ceiling, a damp patch spreading on a wall, water tracking down a chimney breast — the situation is serious but manageable. Follow the steps below.
Once you’ve established there’s no immediate safety risk, your priority is to limit the damage to the interior of your home.
Move everything you can out of the affected area. Furniture, electronics, appliances, rugs, clothing — anything that can be damaged by water should be moved away from the leak as quickly as possible. Water damage to furniture and flooring compounds fast once saturation begins.
Place buckets or containers under every drip point. If you have multiple drip points — which is common when water has been tracking through the roof structure and is finding multiple exit points — get a container under each one.
Use the string trick for heavy dripping. If you have a drip that’s hitting the floor hard enough to splash water sideways, pin a length of string to the ceiling at the drip point and trail the other end into the bucket. Water follows the string by surface tension — it runs down the string and into the bucket cleanly without splashing across the floor. This is one of the most practically useful emergency measures for an active indoor roof leak.
Protect what you can’t move. For items too heavy or awkward to move quickly — a piano, a bed frame, a built-in wardrobe — cover them with plastic sheeting, bin bags, or anything waterproof you have to hand.
Put towels down on the floor around the leak area. They won’t stop the water but they’ll slow the spread across floor surfaces and buy you time before the water reaches skirting boards, timber flooring, and underfloor areas.
This is one of the most important and most overlooked steps — and getting it right prevents significantly more damage.
If you have a plasterboard ceiling that is bulging downward or has a visible water pocket forming, do not leave it to burst on its own. A bulging ceiling holds a significant volume of water, and when it gives way — which it will — it dumps that entire volume of water onto whatever is directly below it in a single event. This is typically how the most severe indoor water damage from a roof leak happens.
Instead, take a screwdriver or a thin implement and carefully pierce the bulge at its lowest point — the centre of the belly — to create a controlled release. Have a bucket ready. The water will flow out steadily rather than collapsing the ceiling in an uncontrolled burst.
Yes, you will create a hole in the plasterboard. That hole is far easier and cheaper to repair than the aftermath of an uncontrolled ceiling collapse — which can bring down a large section of ceiling, saturate flooring and subfloor, damage furniture, and create a mould risk that persists for months.
If the ceiling appears to be sagging significantly across a large area, or if you hear cracking sounds from the ceiling structure, leave the room and keep others out until a professional has assessed it.
This is harder than it sounds — and understanding why will help you give a roofer accurate information when you call.
The visible drip is almost never directly below where the roof is failing. This is the most important thing I can tell you about a roof leak, and it’s something most homeowners don’t know. Water entering the roof structure at a specific point — a failed flashing, a missing slate, a split flat roof membrane — doesn’t fall straight down. It travels horizontally along roof timbers, across the top of insulation, along the back of plasterboard, and through ceiling joints before it finds a low point where it can drip into the room below.
The drip you see on your ceiling in the bedroom may have entered the roof 2 metres to the left, or 3 metres higher up the slope, or through the chimney flashing on the other side of the stack. This is why accurate diagnosis of a roof leak requires a professional with experience — and why a repair carried out in the wrong location fails to resolve the problem.
Check the attic if you have access and it’s safe to do so. Go up into the attic space after dark if possible — turn off the attic light and look for daylight. Any point where light is visible from outside is a potential water entry point. Look also for damp timber, wet insulation, or water staining on the underside of the roof structure above the area where the ceiling is wet. Take photographs of everything you find.
Look at the obvious suspects from outside if it’s safe to observe from the ground. You don’t need to get onto the roof — and you shouldn’t. But standing at ground level and looking at the roof above the affected area can tell you a lot. Are there missing or displaced slates or tiles? Is there visible mortar missing from the ridge line above the leak area? Can you see a gap where the lead flashing should be sitting against the chimney? Is there a section of roof that looks different to the surrounding area — darker, wet, or visibly damaged? Note everything you observe and tell the roofer when you call.
Common sources of leaks on Wicklow properties:
This step takes five minutes and is worth doing even if you don’t think you’ll make an insurance claim — because you might change your mind, and the documentation you gather now will be critical if you do.
Take photographs and video of everything. The ceiling stain, the drip point, the water pocket if there is one, any visible damage from outside the property, and anything you can observe from the attic space. Put a date and time stamp on the photographs. Most smartphones do this automatically in the file metadata, but also note the date and time in a message to yourself so it’s clearly recorded.
Note the weather conditions. What was the weather like today and in the days before the leak became apparent? Was there a storm event? Heavy sustained rain? A particular wind direction? This information is relevant both for diagnosing the source of the leak and for any insurance claim.
Keep receipts for any emergency materials you purchase — buckets, sheeting, towels — and note any belongings that have been damaged by the water.
Once you’ve contained the immediate situation, it’s time to call a roofer. Here’s what to look for when making that call — particularly in the Wicklow area.
Call a local contractor first. A Wicklow-based roofer will get to you faster than a Dublin contractor driving south. DJ Roofing Wicklow is based in Rathnew and covers the entire county — call Sean directly on 040450003 for urgent situations in Wicklow.
Be specific about what you’ve observed. Tell the roofer where the drip is appearing, what you can see from the ground outside, what the weather has been like, and whether you’ve had any previous repairs in the area. The more specific you can be, the more accurately the roofer can assess urgency and likely cause before arriving on site.
Ask whether a temporary repair is possible. In some situations — an active leak during ongoing rain, or a leak discovered late in the evening — a temporary repair to stop the immediate ingress may be possible while waiting for conditions to allow a permanent fix. This might mean a temporary sealant applied to a visible gap, or a tarpaulin secured over an exposed section of roof. Not every situation allows for this, but it’s worth asking.
Do not accept a quote over the phone without an inspection. Any roofer who gives you a firm price for a leak repair without physically inspecting the roof is guessing. The actual repair required won’t be clear until the roofer has assessed the source of the leak at close range. A quote given over the phone will almost certainly change — and not downward.
Check the roofer is insured. Ask for confirmation of public liability insurance before any work begins. A reputable contractor will confirm this immediately.
This section is important because the internet is full of advice about DIY roof repairs that ranges from unhelpful to genuinely dangerous. Here’s an honest assessment of what you can and can’t do safely as a homeowner.
What you can do safely:
What you should not attempt:
Once the immediate situation is contained and a roofer has been called, here’s what you should think about over the next 24–48 hours.
Dry out the affected area as thoroughly and quickly as possible. The damage from a roof leak continues after the water stops entering if the affected materials aren’t dried out promptly. Open windows where weather allows, use a dehumidifier if you have one, and remove any saturated materials — sodden plasterboard, wet insulation, saturated carpet — as quickly as possible. Mould growth begins within 24–48 hours of water saturation in warm conditions. The faster you dry out the space, the lower the mould risk.
Check whether your home insurance covers the damage. In Ireland, home insurance typically covers sudden damage from storm events — displaced slates, torn flashing, structural damage from a storm — but not gradual deterioration from lack of maintenance. If your leak was caused by a storm event, contact your insurer within 48 hours and use the documentation you gathered in Step 5 to support the claim. If the leak is the result of gradual roof deterioration, insurance cover is unlikely — but it’s worth checking your specific policy.
Get a professional assessment of the full roof condition. A leak that has become visible is almost always the symptom of a broader maintenance issue rather than a single isolated event. Once the immediate repair is done, ask the roofer to carry out a full inspection of the roof — not just the repaired area — so you have a clear picture of what other issues are developing and what maintenance is genuinely needed.
Don’t accept a temporary patch as a permanent solution. Some contractors will apply a quick fix under time pressure that resolves the immediate drip but doesn’t address the underlying cause. A flat roof membrane patched with incompatible sealant. A slate replaced without checking the felt beneath. A flashing tack-sealed rather than properly re-dressed and tucked. These temporary fixes fail within months and leave the homeowner facing the same problem again. Always confirm with your roofer that the repair being carried out is a permanent solution, not a temporary one, and what guarantee applies to it.
This is a question I get asked regularly — and the honest answer is that almost every roof leak should be treated as urgent, even when it appears minor. Here’s why.
A small drip through a ceiling in one room might look like a minor inconvenience. But that drip is the visible symptom of water that has already been in the roof structure for some time — long enough to saturate insulation, begin softening timber, and find its way through the ceiling finish. By the time it drips, it has usually been doing damage for days or weeks.
Water in a roof structure doesn’t stop when the rain does. Saturated insulation holds moisture for a long time. Wet timber continues to absorb that moisture. If the source of the ingress isn’t fixed and the structure isn’t dried out, the deterioration continues between rain events.
Small leaks become big ones. A single missing slate creates a gap. Water enters through that gap and reaches the felt beneath. The felt, already aged in most cases on older Wicklow properties, develops a split under the weight of water pooling against it. Now there’s a much larger entry point than the original missing slate. What was a minor leak at the start of November is a significant structural issue by January.
In Wicklow’s climate, there’s no such thing as a convenient time to have a slow leak. The county receives above-average annual rainfall. A roof with an active ingress point in October will be exposed to sustained wet weather through November, December, January, and February. That’s four months of continuous water damage if the problem isn’t addressed.
Treat every leak as urgent. Get a professional to assess it as quickly as possible. And in the meantime, follow the steps in this guide to limit the damage.
This is one of the most searched questions after a roof leak and it deserves a clear, honest answer.
Home insurance in Ireland typically covers sudden and unforeseen damage — storm damage that displaces slates, high winds that tear flashing, a chimney pot dislodged by a storm that creates a hole in the roof. If your leak was caused by a specific storm event and you can demonstrate that the damage was sudden rather than the result of gradual deterioration, a claim is likely to be considered.
Home insurance typically does not cover gradual deterioration. Felt that has aged and failed over time, pointing that has eroded across years, slates that have gradually slipped due to nail sickness — these are maintenance issues rather than sudden damage events, and insurers specifically exclude them from standard home policies. If your roof has been showing signs of wear for some time and the leak is the result of cumulative deterioration, a claim is unlikely to succeed.
Key steps for making a successful insurance claim:
Watch out for storm chasers. After significant weather events — and Wicklow gets its share — there are always contractors who knock doors offering quick roof repairs at inflated prices. These repairs are almost always temporary and overpriced. Use a contractor you’ve researched, who is locally based, and who is properly insured.
Understanding the most likely causes of roof leaks helps you communicate with a roofer effectively and helps you understand what kind of repair is needed. These are the most common sources the DJ Roofing team identifies on Wicklow properties:
Failed lead flashing — the most common source of chimney-related leaks. The lead lifts from its mortar joint, allowing water to track down the chimney breast wall. Often appears as a damp stain on the chimney breast rather than a ceiling drip.
Missing or displaced slates and tiles — creates a direct water entry point. Often caused by storm winds or by corroded fixing nails that can no longer hold the slate securely.
Aged or failed felt beneath slates and tiles — once the felt fails, water enters the structure even when the slates above it appear intact. Very common on Wicklow properties built in the 1970s and 1980s where original felt is now well past its designed life.
Ridge mortar failure — open joints in the ridge bedding allow water to enter at the very peak of the roof and track down a long distance through the structure before appearing as a drip.
Failed flat roof membrane — a split or failed EPDM, GRP, or felt membrane on an extension roof allows water to enter over a wide area. Often causes dampness across a large ceiling area rather than a single drip point.
Skylight flashing failure — a lifted or cracked flashing around a Velux window allows water to run directly into the timber structure surrounding the opening. Often appears as a stain on the wall beside the skylight rather than at the skylight itself.
Blocked gutters — overflowing gutters discharge water behind the fascia and down the wall, appearing as a damp patch in the corner of an upper-floor room. Frequently misdiagnosed as a roof leak.
Valley failure — the lead or mortar valley between two roof slopes is a high-traffic zone for rainwater. When it fails, water can enter over a wide area of the roof junction.
This point is specific to Wicklow and worth making clearly.
County Wicklow receives consistently above-average annual rainfall. Coastal properties in Bray, Greystones, Wicklow Town, and Arklow face additional exposure from easterly weather systems off the Irish Sea. Elevated inland properties around Blessington and the Wicklow uplands experience high annual rainfall combined with severe frost cycles that attack any existing weakness in roof structure and flashings.
In practical terms this means: in Wicklow there is no dry season to wait for. A roof with an active ingress point in autumn will be under continuous water pressure through the entire winter. Every additional week that a leak goes unrepaired adds to the moisture load on the roof structure, the insulation, and the timbers — increasing the likelihood of rot, mould, and structural damage that goes significantly beyond the original repair cost.
The team at DJ Roofing Wicklow treats every leaking roof enquiry as urgent. Sean covers the entire county and aims to get to emergency situations as quickly as possible.
If your roof is leaking right now and you’re in County Wicklow, call Sean directly on 040450003. The team covers all of Wicklow — from Bray and Greystones in the north to Arklow, Aughrim, and Tinahely in the south, and from the coastal towns to the Wicklow uplands.
Free inspection. No call-out fees. Honest advice on what needs to be done.
DJ Roofing Wicklow — honest, reliable roofing across County Wicklow. Call Sean directly for a free quote.
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