Skylight Installation & Repair Dublin
Install new skylights/rooflights or repair leaking units and flashing for brighter, drier rooms across Dublin.
New installations & replacements
Leak repairs around flashing and seals
Clear written quotes
Install or Repair?
Different solutions for different needs — we help you choose the right approach for your property.
Skylight Installation / Replacement
When you need a new skylight installed or want to replace an old, outdated unit with a modern rooflight.
- Bring natural light into dark rooms (loft conversions, hallways, bathrooms)
- Replace old, leaking or damaged skylights with modern units
- Upgrade to better insulation and ventilation options
Common Scenarios:
Loft conversion, adding light to a dark stairwell, replacing a 20-year-old rooflight that's beyond repair, improving energy efficiency.
Skylight Installation / Replacement
When you need a new skylight installed or want to replace an old, outdated unit with a modern rooflight.
- Water staining appearing on ceiling or walls around skylight
- Drafts, failed seals, or visible gaps around the frame
- Flashing detached, damaged or poorly fitted at roof junction
Common Scenarios:
Leak after storm damage, flashing failure on an older skylight, water ingress around edges, mould appearing near frame.
Problem Solving
Common Skylight Problems We Fix
From minor leaks to full replacements — we diagnose and fix skylight issues across Dublin.
Leaks Around Flashing
Failed or poorly fitted flashing causing water ingress at roof junction. Most common skylight problem.
Drafts / Failed Seals
Gaps around frame, perished rubber seals, poor weatherproofing. Cold air infiltration, heat loss.
Water Staining Around Opening
Damp patches on ceiling or walls near skylight. Often caused by flashing failure or blocked drainage.
Poorly Detailed Roof Junctions
Skylight not integrated properly with surrounding tiles/slates. Water channels directly to opening.
Cracked or Damaged Glazing
Impact damage, storm debris, or thermal stress causing cracks in the glass or plastic glazing.
Condensation Between Panes
Failed double-glazing seal allowing moisture into cavity. Indicates unit needs replacement.
Replacement of Old Rooflights
Outdated skylights that are beyond economical repair. Modern replacements improve performance.
Re-sealing & Weatherproofing
Complete flashing upgrade, new seals, proper detailing. Prevent future leaks and damage.
Benefits of a Well-Installed Skylight
A properly installed skylight brings natural daylight into rooms that would otherwise rely on electric lighting during the day — attic rooms, hallways, bathrooms, and internal spaces. Natural light improves mood, reduces energy costs, and makes small rooms feel larger and more welcoming. Modern rooflights also offer ventilation options (opening units), allowing fresh air circulation without compromising security or privacy.
However, the key to a successful skylight is correct installation — particularly the flashing and roof integration. Poor detailing causes leaks, damp, and costly damage to ceilings and roof timbers. We focus on proper weatherproofing, ensuring the skylight works with your roof rather than creating a weak point. When installed correctly, a skylight adds value, functionality, and light to your property. When installed poorly, it becomes a maintenance headache. The difference is in the detail.
How We Install & Repair Skylights
Roof Assessment & Suitability
We inspect your roof structure, pitch, covering (tiles/slates), and identify the best position for the skylight based on internal room layout and external roof conditions. Not all roofs are suitable for every type of skylight — we advise honestly.
Measuring & Positioning
Accurate measuring ensures the skylight fits properly between rafters and integrates with roof tile courses. Poor positioning causes problems — we consider rafter spacing, tile layout, and internal ceiling height.
Flashing & Weatherproofing
This is the critical step. We fit manufacturer-approved flashing kits (or custom lead flashing for non-standard installations) to integrate the skylight with your roof covering. Proper detailing prevents leaks at top, sides, and bottom junctions.
Tidy Finish & Internal Protection
We protect your interior during the work (dust sheets, careful cutting), fit internal trim/lining (if part of the job), and leave the site clean. Photos and written quotes provided on request.
Flashing Specialists
Leak-Free Guarantee
For repairs, the process is similar but focused on diagnosis — we identify why the leak is happening (failed flashing, damaged seals, cracked glazing, poor roof integration) and fix the root cause rather than applying temporary patches. If the skylight is beyond repair or outdated, we advise on replacement options with modern units that offer better insulation, weatherproofing, and performance. Every job includes a clear written quote detailing materials, labour, access requirements, and costs before we start work.
Leaking Around a Skylight?
Call us for skylight repairs in Dublin — we’ll find the source and fix it properly.
Skylight Flashing & Waterproofing
Most skylight leaks are caused by flashing failure rather than the skylight unit itself. Flashing is the weatherproofing material (metal or synthetic) that bridges the gap between the skylight frame and your roof covering, directing water safely around the opening rather than into it. Poor flashing installation, deteriorated materials, or roof movement over time causes the seal to fail, allowing water to penetrate around the edges and down into your ceiling.
Blocked drainage channels at the bottom of the flashing kit also cause leaks — water pools rather than draining away, eventually finding a way through. On flat roofs or shallow pitches, incorrect fall or poor detailing exacerbates the problem. We’re experienced in skylight flashing work — understanding how water behaves on roofs and ensuring proper integration with tiles, slates, or flat roof membranes.
Recent Skylight Work
Skylight Leak Repair — Dublin City
Failed flashing causing persistent ceiling staining. Removed old flashing, fitted new approved kit, resealed all junctions. Leak fixed, no more damp.
New Rooflight Install — North Dublin
Loft conversion requiring skylight for natural light. Cut opening, fitted modern opening rooflight with flashing kit. Room transformed.
Flashing Upgrade & Reseal — South Dublin
Old skylight with deteriorated flashing. Upgraded to modern flashing system, re-sealed frame, replaced damaged tiles. Weatherproof and secure.
Areas We Cover
We provide skylight installation and repair services across Dublin and surrounding areas, including Dublin City, North Dublin, South Dublin, Swords, Malahide, Portmarnock, Lucan, Tallaght, Dundrum, Blackrock and nearby areas.
Not listed? Call us — we likely cover your area.
Frequently Asked Questions
Can you repair a leaking skylight without replacing it?
Yes, in many cases a leaking skylight can be repaired without full replacement. The most common cause of leaks is failed flashing — the weatherproofing material around the skylight frame. We remove the old or damaged flashing, fit a new approved flashing kit (or custom leadwork if needed), and reseal all junctions with the roof covering. If the skylight unit itself is sound — no cracks in the glazing, seals are intact, frame is structurally good — then flashing repair solves the problem permanently. However, if the skylight is old, the glazing is damaged, seals have failed, or the frame is corroded, replacement may be more cost-effective than ongoing repairs. We assess the condition honestly and explain your options with clear pricing for both repair and replacement. Many leaks are fixable without replacing the entire unit.
What causes leaks around skylights and rooflights?
Skylight leaks are almost always caused by flashing failure rather than the skylight itself. Flashing bridges the gap between the skylight frame and your roof covering, directing water safely around the opening. Poor installation, deteriorated materials, roof movement over time, or blocked drainage channels at the base of the flashing kit all cause seals to fail, allowing water to penetrate. On flat roofs or shallow pitches, incorrect fall or poor detailing worsens the problem — water pools rather than draining away. Storm damage can lift flashing or damage the roof covering around the skylight, creating new leak paths. Condensation is sometimes mistaken for leaks — moisture forms on cold surfaces inside the room, dripping down to mimic water ingress. We diagnose the true cause before recommending repairs. See our roof leak repair page for more on leak diagnosis.
Do you replace old skylights with modern units?
Yes, we replace outdated or damaged skylights with modern rooflight units that offer better insulation, weatherproofing, and performance. Older skylights often have single glazing, poor thermal performance, and outdated flashing systems that are prone to leaks. Modern replacements feature double or triple glazing, improved seals, thermal breaks, and manufacturer-approved flashing kits designed to integrate properly with contemporary roof coverings. Upgrading to a modern unit reduces heat loss, improves condensation resistance, and often includes opening/ventilation options. We measure the existing opening, recommend suitable replacement units based on your roof type and budget, and provide a written quote detailing materials, labour, and access costs. Replacement work includes removing the old skylight, preparing the opening, fitting the new unit with proper flashing, and ensuring weathertight integration with surrounding tiles or slates.
Do you provide written quotes and photos?
Yes, we provide written quotes and photos as standard. Written quotes detail exactly what’s needed: materials (skylight unit, flashing kit, tiles/slates), dimensions, labour, access requirements (scaffolding, ladders), and costs broken down clearly. We explain what’s included and what’s not — for example, internal plastering or trim work may be separate if you’re arranging your own finishing trades. For repair work, we can take photos showing the leak source, damaged flashing, or condition of the existing skylight before and after completing repairs. This is particularly useful for insurance claims, landlord records, or your own documentation. Photos demonstrate the problem visually and confirm the work completed. Everything is transparent and documented upfront — no hidden costs or surprise charges once work begins.
Are you insured for skylight installation and repair work?
Yes, we carry full public liability insurance for all roofing work, including skylight installation and repairs. Skylight work involves cutting roof openings, working at height, using scaffolding or ladder access, and handling glass or glazed units — all activities that require proper insurance cover. Your property is fully protected while we work. Insurance covers accidental damage to your property, injury to third parties, and our own workforce. You can request to see our insurance documentation at any time. We follow health and safety procedures, use appropriate access equipment, protect your interior with dust sheets and careful handling, and work professionally on every job. We’re experienced in skylight work on all types of Dublin properties — from terraced houses to detached homes, loft conversions, and commercial buildings. Your peace of mind and property protection are priorities.
How long does skylight installation or repair usually take?
Skylight installation on a standard pitched roof typically takes 1–2 days, depending on roof type, access, and whether internal finishing work is included. Day one involves cutting the roof opening, fitting the skylight and flashing, and making the roof weathertight. Day two (if needed) covers internal trim work, plastering touch-ups, or final adjustments. Simple leak repairs — replacing flashing or resealing — can often be completed in a few hours. Full skylight replacement (removing old unit, fitting new one with flashing) usually takes 1 day. Complex installations — multiple skylights, difficult access, flat roof units, or non-standard openings — may take longer. We provide realistic timescales when quoting and keep you informed if anything changes during the work. Weather-dependent work (cutting roof openings) requires dry conditions, so we schedule carefully and work efficiently to minimize disruption.
Can skylight leaks be mistaken for roof leaks?
Yes, skylight leaks are often mistaken for general roof leaks because water appears on the ceiling near the skylight — making it seem like a roof covering problem rather than a skylight issue. However, the water source is usually failed flashing around the skylight frame, not the roof tiles or slates themselves. Water travels along roof timbers or down the inside of the flashing before dripping onto the ceiling, sometimes appearing several feet away from the actual skylight. Condensation can also be mistaken for leaks — warm, moist air from the room condenses on the cold skylight frame or glazing, dripping down and causing damp patches that look like water ingress. We trace the source carefully, checking flashing condition, roof covering around the skylight, internal condensation levels, and drainage at the base of the flashing kit. Proper diagnosis prevents wasted money on unnecessary roof repairs when the real issue is skylight weatherproofing.
Do you also repair surrounding tiles/slates and flashing?
Yes, skylight work often requires repairing or replacing surrounding roof tiles, slates, and flashing to ensure proper weatherproofing. When installing a new skylight, we cut the roof opening, fit the skylight and flashing kit, and reinstate or replace tiles/slates around the opening to integrate neatly with the existing roof covering. For repairs, we check the condition of tiles and slates adjacent to the skylight — cracked, slipped, or poorly fitted tiles can contribute to leaks around the skylight area. We also inspect and repair any leadwork or flashing at roof junctions where the skylight meets valleys, ridges, or other roof features. Our experience in general roof repairs means we understand how skylights interact with the broader roof system. See our slate and tile repairs page and roof repairs page for related services.