Velux Window Installation Cost in Cork: 2026 Price Guide

The pricing table above gives a straightforward guide to our typical Velux installation prices. Every property is different, so we inspect the work before providing a final quotation.

For an exact price for your property, we provide free quotations for Velux window and skylight installations in Cork.

If you already have a Velux or similar roof window and want to replace it with a new unit of the same size, the work is normally less involved than creating a new opening.

For a typical same-size replacement, our guide price is €900–€1,300. The existing window is removed and the replacement is fitted with a new flashing kit before the surrounding area is properly finished.

Replacement can be worth considering when an older roof window has become difficult to operate, is showing signs of deterioration, has inefficient glazing or is no longer performing as it should.

Worth knowing:A leak around a roof window does not automatically mean the entire window needs replacing. Problems can sometimes originate from the flashing or surrounding roof covering. An inspection helps establish whether repair or replacement is the appropriate option.

For a new Velux installation into a tiled roof, our indicative price is €1,200–€1,600. Published prices are plus VAT and exclude scaffolding.

This is more involved than a straightforward replacement because a suitable opening first needs to be formed in the roof. The structure is reinforced where required before the window is installed with the appropriate EDW flashing system and the surrounding area is trimmed and finished.

Correct flashing is particularly important. A roof window interrupts the normal path rainwater takes down the roof, so the window and surrounding tiles need to work together as a complete weatherproof system.

A new Velux installation on a slate roof typically costs €1,350–€1,800. Published prices are plus VAT and exclude scaffolding.

Slate roofs require a different approach to tiled roofs. The surrounding slates need to be carefully removed, cut and reinstated around the new window, while the appropriate flashing system must be used to create a durable weatherproof junction.

This additional detailing is why a new slate-roof installation generally sits slightly above an equivalent tiled-roof installation.

Not every project fits neatly into a standard specification. Larger roof windows, unusual sizes and electric or remotely operated Velux windows are quoted individually.

An electric roof window can be particularly useful when the window will sit above a stairwell, in a high ceiling or anywhere that would make manual operation inconvenient. The right specification depends on where the window is being installed and how the room will be used.

Rather than applying a generic figure to these installations, we assess the requirements and provide a quotation based on the actual window and work involved.

The flashing around a Velux window is not simply decorative trim. It is a fundamental part of the weatherproofing system.

The correct flashing system helps direct rainwater safely around the window and back onto the roof covering below. The appropriate product depends on factors including whether the roof is slate or tile and the profile of the covering.

Poorly fitted or unsuitable flashing can create a weak point where water can enter around the roof window. This is why the window, flashing and surrounding roof covering should be treated as one installation rather than separate components.

Position affects both the amount of useful daylight entering the room and how practical the window is to use. Roof pitch, room layout, rafter positions and the intended use of the space all need to be considered.

For example, a roof window intended to provide both light and ventilation needs to be positioned so it can be operated comfortably, whereas an electrically controlled window gives greater flexibility in spaces where the ideal position is out of reach.

Where several positions are possible, we can assess the roof and advise on a practical location before installation.

Condensation and roof leaks are two different problems, although the moisture they create can sometimes look similar from inside the property.

Condensation occurs when warm, moisture-laden indoor air meets a colder surface. Kitchens, bathrooms, bedrooms and converted attic spaces can all produce significant moisture, particularly during colder weather.

Good ventilation, suitable glazing and proper insulation around the window opening all contribute to reducing condensation risk. If moisture repeatedly appears around a roof window, it is worth establishing whether the cause is internal condensation or external water ingress before deciding what work is needed.

That depends on what has failed and the overall condition of the existing installation.

If the window itself remains in good condition and the problem is isolated to surrounding roofing or flashing, targeted repair may be sufficient. An older unit with deteriorated components, poor glazing performance or several recurring issues may make replacement the more sensible long-term option.

We provide both roof window replacements and roofing repairs, so the recommendation can be based on the condition of the installation rather than assuming that every problem requires a new window. You can learn more about our skylight and Velux window services in Cork.

For rooms directly beneath a pitched roof, a roof window can be an extremely effective way of introducing natural daylight and ventilation without constructing a dormer or altering an external wall.

They are commonly considered for attic conversions, upstairs bedrooms, landings, home offices and other areas where conventional windows are limited or impractical.

The important part is choosing a window appropriate for the room and having the opening, flashing and surrounding roof work completed correctly. A cheap installation that later develops weatherproofing problems is rarely good value.