A skylight is a fantastic feature until it starts dripping on your furniture or becomes so foggy you can no longer see the sky.
At Hallmark Roofing, we specialise in the repair and maintenance of all roof window brands, including Velux, Keylite, and Fakro.
Because these windows are built directly into your roof’s structure, they require a specialist touch that general window fitters often lack.
Whether your skylight was damaged in a storm, has a failed seal causing condensation between the panes, or is leaking through the frame, we provide fast and reliable solutions across Cork City and County.
We don’t just fix the glass; we ensure the structural integration with your slates or tiles is perfectly watertight.
Call (021) 202 1045 for a Free Skylight Repair Assessment
Most skylight leaks in Cork aren't actually caused by the window itself, but by the flashing kit—the metal surround that channels water away from the opening.
Over years of Cork's wind-driven rain, debris like moss and leaves can build up under the tiles, blocking these channels and forcing water back under the felt.
Our Skylight Repair Cork service focuses on a "root cause" fix. We strip back the surrounding tiles, clear out all debris, and inspect the flashing for pinholes or corrosion.
If the flashing is damaged, we replace it with a genuine manufacturer-approved kit designed for your specific roof type (slate or tile).
We also check the "apron"—the flexible bottom section of the flashing—to ensure it hasn't lifted or cracked, which is a common entry point for water during high winds.
Real people. Real workmanship. Real results.
Skylights, particularly timber-framed ones, require regular care to prevent rot and mechanical failure. If your window has become difficult to open, or if you notice black mould forming on the wooden frame, it’s time for a professional service.
Seal Replacement: We replace worn rubber gaskets and foam seals that have perished due to UV exposure.
Hinge and Handle Repair: We lubricate and adjust the friction springs and hinges to ensure the window operates smoothly and locks securely.
Energy Upgrades: If you have an older single-glazed or early double-glazed unit, we can upgrade you to modern Low-E thermal glass, which reflects heat back into the room during the winter.
Not necessarily. Most leaks are caused by the external flashing or blocked drainage channels. We can usually repair these without touching the internal window frame, saving you money and mess.
All Velux windows have a small metal data plate on the top of the sash (the part that moves). You’ll see it when you open the window. This code (e.g., GGL MK04) tells us the exact size and age of your window so we can source the correct parts.
If the moisture is on the room-side surface, it’s usually caused by poor ventilation in the room (common in kitchens and bathrooms). If the moisture is between the two panes of glass, the seal has failed, and the glass unit needs to be replaced.
Yes. Flat roof skylights (domes or lanterns) have different common issues, usually related to the "upstand" or the membrane seal. We are experts in both pitched and flat roof skylight repairs.
We bring over 15 years of roofing expertise to every job. Unlike a standard glazier, we understand the entire roofing system.
We know how a skylight interacts with your roof felt, battens, and insulation.
We are fully insured, safety-trained for roof work, and we only use premium materials that can stand up to the Irish climate.
From Ballincollig and Douglas to Midleton and Carrigaline, we are the trusted choice for homeowners who want their skylights fixed right the first time.
Contact us today at (021) 202 1045 to schedule your repair or glass replacement.
Hallmark Roofing provides trusted, affordable roofing services across Cork City and County. With over 15 years of experience, our fully trained and insured team delivers high-quality roof repairs, new roofs, flat roofing solutions, guttering, chimney work and more.
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