Velux and other roof windows fitted into slate, tile and flat roofs by directly employed roofers. Free survey, written fixed-price quote within 48 hours.
An attic window is a window set into the slope of the roof so that daylight and fresh air reach a room in the attic. People call it a roof window, a skylight or just "a Velux", after the best-known make. It sits flush with the roof, costs far less than a dormer and, on the rear of a house, usually does not need planning permission.
A roof window leaks at the flashing, not through the glass. Every roof covering needs its own kit: the right one for slate, for tile, or for a flat roof. A kit made up on site, or a part kit, is the usual cause of a leaking Velux. We use the full manufacturer kit with an insulation collar and underlay seal on every job, and fix the window to the rafters as the maker specifies.
We fit a window into an existing opening, cut a new opening and trim the rafters, replace a leaking or faded window like for like, and fit windows as part of an attic conversion. If the window is leaking and the flashing is the fault, we can often repair it without replacing it. See our roof repair service.
Read next: Attic window installation in Ireland, with prices by city and Attic window installation in Galway.
For prices by city and a full explanation of window types and sizes, read our guide to attic window installation in Ireland, or the Galway attic window guide. Planning a bigger job? See new roof installation and roof renovation.
Fitting a Velux roof window into a slate roofIndicative 2026 ranges — your quote is confirmed free after an on-site survey. VAT at 13.5% applies to residential work.
| Service | Price Range (2026) | Duration |
|---|---|---|
| Fixed roof window (does not open) | €900–€1,500 | Half a day |
| Manual centre-pivot Velux, standard size | €1,400–€2,200 | Half to 1 day |
| Top-hung Velux (higher pivot) | €1,700–€2,600 | Half to 1 day |
| Electric or solar opening Velux | €2,400–€3,600 | 1 day |
| Two windows side by side, one combined flashing | €2,800–€4,500 | 1 to 1.5 days |
| Replace an old window like for like | €1,100–€1,800 | Half a day |
| New opening cut and trimmed in the rafters (extra) | €400–€1,000 | Add 1 day |
| Internal lining, plaster and paint to the reveal (extra) | €300–€800 | Add half a day |
Indicative 2026 prices for one window supplied and fitted into an existing slate or tile roof, including the flashing kit and fitting. Dublin typically runs about 10 to 15 percent higher because of access and scaffold. Scaffold or an access tower, where needed, is quoted separately.
We maintain and replace roofs for Bank of Ireland branch buildings throughout Munster — a contract that required pre-qualification on insurance, safety systems, quality management and financial standing. Clare County Council selected us through public procurement for public building maintenance roofing works. Midleton College engaged us for heritage campus re-roofing. These clients apply due diligence standards that validate our capability for any project.
Recommended Roofing is registered with the Construction Industry Register Ireland (CIRI) — the government-backed register that verifies competence, insurance and compliance. CIRI registration is the most reliable independent verification available in the Irish roofing market. We also maintain active membership of the Construction Industry Federation (CIF) and the Cork Chamber of Commerce.
Our Firestone Approved Installer status is verified annually through training audits and installation quality reviews — not a one-off accreditation. This is a condition of the 20-year Firestone manufacturer warranty on every EPDM and TPO installation we complete. We are also Tegral Certified for their Irish-manufactured slate and fibre-cement range. These accreditations are issued by manufacturers, not self-declared.
We carry €6.5 million combined public and employer's liability insurance through Zurich Insurance, meeting the minimum requirements of all major facility managers, local authorities and financial institutions. VAT registered (IE4415315DH), Company Registration 782157. Safe Pass, Manual Handling, Working at Heights and CSCS certified crews. Full PSCS capability on all commercial projects. Every credential is verifiable.
The centre-pivot is the standard attic window. The sash rotates around a pivot at the middle, so it opens for ventilation, turns right round so the outside pane can be cleaned from indoors, and still leaves you clear space beneath it. It suits most attic bedrooms and offices where the sill sits at about waist height.
The common Velux sizes are named by code, such as MK04 at 78 by 98cm and PK06 at 94 by 118cm. We measure the rafter spacing at the survey and pick the size that fits with the least cutting, which keeps the price down.
A top-hung window is hinged at the top and opens outwards, which gives a clearer view and more headroom at the sill. It is the better pick where the window sits low, such as a landing, a stairwell or a bedroom under a low eaves line.
It costs a little more than a centre-pivot because of the more involved frame and hardware, and is the one we recommend where you want to look out while standing.
Electric windows open and close from a wall switch or a remote. Solar models do the same with a built-in solar panel, so there is no cable chased through the plaster and no electrician needed. Both are worth paying for where the window is above reach, and many include a rain sensor that shuts the window when it starts to rain.
A fixed window lets in light but not air and is the cheapest option. It suits a landing, a stairwell or any space with other ventilation. Two or more windows can be fitted side by side or stacked under a single combined flashing, which is cheaper per window than fitting them separately and looks neater from the street.
Old windows fail at the seals and the flashing long before the frame gives out. Replacing like for like uses the existing opening, so it is usually a half-day job and one of the cheapest ways to stop a leak and a draught. If the leak is only the flashing, we can sometimes repair it without replacing the window. We tell you which it is at the survey.
For an attic conversion, roof windows bring in light and meet the escape requirement. A new opening means cutting the rafters and fitting a trimmer to carry the load, then lining the reveal inside. A bedroom needs an escape window with a clear opening of at least 0.33 square metres, no side shorter than 450mm and the bottom of the opening no more than 1,100mm above the floor. Check your plans with an architect or engineer.
The same structured approach on every job — no shortcuts.
A qualified roofer measures the attic, rafter spacing and head height, checks the roof covering and tells you which window and flashing kit suit it.
A written fixed price within 48 hours covering the window, flashing kit, fitting and any extras, so you know the full cost before we start.
Slates or tiles are stripped around the opening, the rafters trimmed if needed, and the window bracket and window are fitted level and square.
Underlay collar, insulation collar and the correct flashing kit go in, and the slates or tiles are relaid around the frame.
The window is tested, the reveal lined inside if it is in your quote, the site is cleared and you get the 10-year guarantee certificate.
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