Skylight & Velux Window Repairs in Dublin

Roof windows and skylights bring natural daylight into attic conversions, dormers, and kitchen extensions, but they are also among the most vulnerable penetration points on any roofline. Positioned flat or pitched against Dublin’s driving rain, coastal winds, and temperature fluctuations, skylights endure severe weather stress.

When water begins dripping down the timber frame or damp rings appear on the surrounding plasterboard ceiling, the damage can escalate quickly into soaked insulation, rotten structural rafters, and ruined interior decor.

Most skylight leaks in Dublin are not caused by cracked glass, but by failing perimeter seals, deteriorated flashing kits, or debris blockages.

Over years of damp weather, moss and grit wash down your roof slates and clog the narrow side drainage channels concealed beneath the outer casing. Rainwater then backs up, overflows the side gutters, and tracks directly into your roof space.

With over 15 years of trade experience, MP Roofing provides rapid, permanent repairs for Velux windows and flat roof skylights across North and South Dublin. Mike inspects the window up close on camera, demonstrates the true fault, and fixes the issue without recommending costly whole-window replacements when a targeted repair is all you need.

Homeowners often assume a leaking roof window requires tearing out the entire unit and replastering the ceiling inside. In reality, over 90% of leaking skylights can be permanently repaired without replacing the window frame itself.

• When a targeted repair is all you need: If the leak stems from moss blockages in the side drainage channels, cracked lead aprons, perished rubber seals, or deteriorated flashing kits (such as standard Velux EDL slate or EDW tile kits), the issue is purely external. We can strip back the surrounding tiles, fit a new flashing kit or water barrier, and leave the internal timber frame and plasterboard undisturbed.

• When full replacement is the right call: A replacement is usually only necessary if the interior timber core has turned soft from years of untreated rot, the sash frame has warped so severely that the window will no longer latch, or the unit is an obsolete, discontinued profile where replacement glazing or flashing kits can no longer be sourced.

Why is water dripping from the bottom corners of my Velux window?

Drips from the bottom corners of the timber frame usually indicate that the concealed side drainage gutters under the external aluminium casing are blocked with moss and dirt. During heavy rainfall, rainwater cannot flow down the roofline, causing it to back up and spill over the frame into the ceiling reveal. Clearing and resealing these drainage channels normally resolves the leak immediately.

Can you fix a leaking skylight without replacing the entire window unit?

Yes. In more than 90% of the cases we inspect, the timber frame and structural window sash are completely sound. The leak is almost always caused by failed external flashing kits, perished rubber gaskets, torn underlay collars, or cracked leadwork. We repair or replace the exterior weatherproofing components, saving you the disruption and expense of removing the internal frame and plasterboard.

Is it an active roof leak or just winter condensation?

Because warm, humid air inside your home rises to the highest point of the ceiling, roof windows are prone to condensation during cold Dublin winters. If moisture only forms on the glass during cold mornings and dries out during the day, it is likely condensation caused by poor room ventilation. If water drips consistently during rainfall, soaks the timber frame, or leaves watermarks on the plasterboard reveal, you are dealing with an external water leak that requires trade repair.

How quickly can you attend to an active skylight leak?

We operate a dedicated same-day emergency dispatch service across Greater Dublin. If severe rain is causing water to pour through a roof window or drip onto bedroom furniture, our crew will come out the same day to make the window watertight, seal the ingress point, and protect your home before carrying out permanent repairs.

What guarantee do you provide on skylight repairs?

Every skylight and Velux repair carried out by MP Roofing—including flashing kit replacements, gasket renewals, and perimeter resealing—is backed by our written 5-year workmanship guarantee. If an issue arises with the repair during that timeframe, our crew returns to rectify it free of charge.