Can you install a Velux window in any roof?

Most roof types can accommodate Velux windows, but installation complexity varies. Pitched roofs (15-90°) with tiles or slates are straightforward. Flat roofs require special flat roof Velux units. Thatched roofs are not suitable. We assess your roof structure, pitch, and rafter spacing during our free survey to confirm suitability and identify any additional work needed.

Do I need planning permission for a Velux skylight in Dublin?

Most residential Velux installations are exempt from planning permission under Irish building regulations, provided: the skylight doesn't project more than 150mm above the roof plane, total roof window area doesn't exceed certain limits, and your property isn't in a conservation area or protected structure. We advise on planning requirements during our site survey.

How long does Velux installation take?

A single Velux skylight installation typically takes 1 day for a straightforward pitched roof installation. This includes cutting the roof opening, installing the window and flashing, and basic internal finishing. More complex installations (multiple windows, flat roofs, or extensive internal work) may take 2-3 days. We confirm timelines in your quote.

Why is my Velux window leaking?

Common causes of Velux leaks include: failed or incorrectly installed flashing (most common), degraded seals around the glass unit, blocked drainage channels, condensation issues mistaken for leaks, or damage to the window frame. We diagnose the exact cause and provide permanent repairs. Most leaks are flashing-related and fixable without replacing the entire window.

Can you repair my old Velux or does it need replacing?

Many Velux issues are repairable: we can replace seals, glass units, flashing kits, hinges, and handles on most models. However, if the frame is warped, extensively rotted, or the model is very old (25+ years), replacement is often more cost-effective. We always assess repair viability first and advise honestly on the best option for your situation and budget.

Velux & Skylight Services Dublin | Install, Repair & Replace

Complete Velux & Skylight Services Across Dublin

Skylights transform dark spaces into bright, airy rooms. Whether you're converting an attic, adding natural light to a kitchen extension, or replacing an old leaking roof window, Secure Top Roofing provides complete Velux and skylight services across Dublin.

We install genuine Velux windows using manufacturer-approved techniques and flashing kits. For existing skylights, we diagnose problems accurately and repair where possible - only recommending replacement when genuinely necessary. Every installation and repair carries our 10-year workmanship guarantee.

Our Velux Services

✓ New Velux skylight installation
✓ Velux window replacement (like-for-like or upgrade)
✓ Skylight leak repair and diagnosis
✓ Flashing kit replacement
✓ Glass unit replacement
✓ Seal and gasket renewal
✓ Blind and accessory fitting
✓ Internal finishing and lining

Call: 089 255 7199 Request Free Survey

Velux roof window installed in Dublin home by Secure Top Roofing

Velux Services We Provide

From new installations to repairs, we handle all aspects of Velux and skylight work across Dublin.

New Velux Installation

Complete installation of new Velux skylights including roof opening, flashing, and internal finishing. Perfect for attic conversions and adding natural light.

Velux Replacement

Replace old, damaged, or inefficient skylights with modern Velux units. Upgrade to better insulation, easier opening mechanisms, or larger sizes.

Leak Repair

Diagnose and permanently fix leaking skylights. Most leaks are flashing-related and repairable without full replacement.

Flashing Replacement

Replace failed or incorrectly installed flashing with genuine Velux flashing kits matched to your roof type (slate, tile, or flat).

From €350

Glass Unit Replacement

Replace failed double-glazed units (misted, cracked, or broken glass) without replacing the entire window frame.

From €300

Blinds & Accessories

Supply and fit Velux blinds (blackout, roller, Venetian), electric operators, rain sensors, and other accessories.

From €150

Common Velux Problems We Fix

Leaking Around the Frame

Cause: Usually caused by failed flashing, incorrect installation, or degraded seals.

Our Solution: We diagnose the exact source and repair with genuine Velux flashing kits or seal replacement. Most leaks don't require full window replacement.

Condensation Between Glass

Cause: Failed seal in the double-glazed unit allowing moisture ingress.

Our Solution: Glass unit replacement. We source replacement sealed units compatible with your Velux model - no need to replace the frame.

Difficult to Open/Close

Cause: Worn hinges, swollen timber frame, or damaged opening mechanism.

Our Solution: Hinge replacement, frame adjustment, or mechanism repair. If the frame is severely damaged, replacement may be more economical.

Daylight Visible Around Edges

Cause: Settlement, incorrect sizing, or failed weatherseals.

Our Solution: Weatherseal replacement, frame adjustment, or in severe cases, reinstallation with correct sizing and flashing.

Why Dublin Homeowners Choose Us for Velux Work

Velux Trained Installers
Our team is trained in Velux installation techniques and uses genuine Velux flashing kits. Proper installation is critical for watertight skylights - we follow manufacturer specifications exactly.
All Velux Services
New installations, replacements, leak repairs, flashing replacement, glass unit replacement, blind fitting, and maintenance. One team for all your skylight needs.
Repair Before Replace
We assess repair viability first and advise honestly. Many skylight problems are fixable without expensive full replacement. We only recommend replacement when genuinely necessary.

Watertight Guarantee
Every Velux installation and repair carries our 10-year workmanship guarantee. We stand behind our flashing and sealing work - your skylight will stay dry.
Clean Installation
We protect your home during installation, manage dust and debris, and leave your space clean. Internal finishing included in our quotes - no half-finished jobs.
Dublin Coverage
Based in Dublin 15, we install and repair Velux windows across all Dublin areas. Call 089 255 7199 for a free site survey and fixed-price quote.

Velux Skylight - Dublin 2026

Transparent pricing with free site surveys. All quotes are fixed-price with no hidden extras.

Repairs

• Leak diagnosis and repair
• Flashing replacement
• Seal/gasket renewal
• Glass unit replacement
• Hinge/mechanism repair

Replacement

• Like-for-like Velux replacement
• New flashing kit included
• Internal finishing
• Upgrade to modern models
• Disposal of old unit

New Installation

• Complete new Velux installation
• Roof opening created
• Flashing kit included
• Internal lining/finishing
• All sizes available

What Affects Your Quote:

• Window size (CK02, MK04, SK06, etc.)
• Roof type (slate, tile, flat)
• Access difficulty (scaffolding needed?)
• Extent of internal finishing required
• Model features (manual, electric, solar)
• Number of windows

Free site survey included - We assess your specific requirements and provide a fixed-price quote.

Why We Recommend Velux

While we can work with various skylight brands, we recommend Velux for most Dublin installations. Here's why:

Industry-leading quality and durability
Widest range of sizes and styles
Excellent thermal performance for Irish climate
Genuine flashing kits for every roof type
Easy availability of replacement parts
10-year manufacturer warranty
Compatible blinds and accessories
Well-established in Ireland - trusted by builders

Popular Velux Models We Install

GGL/GGU Centre-Pivot

Classic top-hung design, easy to operate, suitable for most roof pitches. Available in pine or white polyurethane.

GPL/GPU Top-Hung

Opens outward from the top, ideal for roof access or enjoying views. Better for steeper pitches.

Integra Electric/Solar

Remote-controlled opening with optional rain sensor. Perfect for hard-to-reach installations.

Flat Roof Windows

Specifically designed for flat or low-pitch roofs. Available in fixed or opening versions.

Velux Services Across Dublin

We install and repair Velux skylights throughout Dublin city and county:

Dublin 15 Blanchardstown Castleknock Lucan Clonsilla Swords Malahide Howth Drumcondra Glasnevin Rathmines Rathfarnham Dundrum Dún Laoghaire Tallaght Clondalkin

View all Dublin areas or call 089 255 7199

Velux & Skylight FAQs

Velux skylight installation in Dublin typically costs €1,500-€3,500 including supply and fitting, depending on window size, roof type, and accessibility. This includes the Velux unit, flashing kit, internal finishing, and all labour. Replacing an existing Velux costs €800-€1,800. We provide fixed-price quotes after a free site assessment - call 089 255 7199 to arrange yours.

Ready to Brighten Your Home with a Velux Skylight?

Whether you need a new installation, repair, or replacement, Secure Top Roofing delivers professional Velux services across Dublin with 10-year guarantees.

✓ Free Site Survey • ✓ Fixed-Price Quotes • ✓ Velux Trained Installers • ✓ 10-Year Guarantee

Call 089 255 7199 Book Free Survey

Related Services

Flat Roof Repair

Extensions & flat roof skylights

Roof Leak Repair

Skylight leak specialists

Roof Inspection

Check your skylight condition

Velux & Skylight Services DublinSame-Day Service Available