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⭐ Skylight & Roof Window Repair · Llandudno

Skylight Repair Llandudno

Nine out of ten leaking skylights in Llandudno are a flashing problem — not a window problem. We diagnose correctly, fix the actual cause, and do not replace windows that do not need replacing. Free diagnosis, fixed-price repairs.

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90%
Flashing Not Window
1-Day
Most Repairs
All
Major Brands
Free
Diagnosis
Correct Diagnosis First
All Major Brands
Velux Specialists
Glass Unit Replacement
Free Diagnosis
Skylight Repair in Llandudno

Skylight Repair Specialists in Llandudno

Leaking skylights are one of the most mis-diagnosed roof problems. Most contractors replace the window when the problem is the flashing. We diagnose the actual cause before quoting — you pay only for what is actually broken.

The Flashing Problem

Velux and other roof window brands supply specific flashing kits designed for different roof coverings — there is a different kit for plain tile, profiled tile, slate and low-pitch applications. If the wrong kit was installed, the flashing cannot properly integrate with the roof covering and will admit water. This is the most common cause of leaking skylights we repair in Llandudno.

The Salt Air Factor

Llandudno's coastal salt air accelerates degradation of foam compression seals within skylight flashing surrounds. On exposed North Shore promenade and Craig-y-Don seafront properties, these seals may need replacement after 10-15 years rather than the 20+ years expected inland.

What We Repair

Flashing kit replacement (wrong specification or failed), foam seal replacement, glass unit replacement for condensation between panes, frame damage repair, operating mechanism repair and full window replacement where required. We carry parts for Velux, FAKRO, RoofLite and Dakea windows.

Pricing Guide

Skylight Repair Costs in Llandudno

Diagnosis

Free

Identify cause before any quote

Flashing Repair

£200–£500

Correct kit fitted, fully weathertight

Seal Replacement

£150–£350

Compression foam seals

Glass Unit

£200–£500

Double or triple glazed replacement

Full Window Replace

£600–£1,200

Frame, glass, flashing all-in

All Brands

Covered

Velux, FAKRO, RoofLite, Dakea

Customer Reviews

What Our Customers Say

★★★★★

"Velux had been leaking since installation by another contractor. Wrong flashing kit fitted. These guys identified it, fitted the correct EDL system for slate. Dry since."

Karen L. · Bodafon Road, Craig-y-Don
★★★★★

"Two Velux windows installed into Penrhyn slate on our Victorian terrace loft conversion. Correct EDL flashing kit, slates relaid neatly. No leaks and looks right for the property."

Sarah T. · Charlton Street, Llandudno
★★★★★

"Skylight fogging between panes — they correctly identified it as a failed glass unit seal, not a flashing issue. Glass unit replaced, problem resolved, no unnecessary cost."

Mark H. · Wendon Road, Penrhyn Bay
FAQ

Frequently Asked Questions

In over 90% of cases, the cause is the flashing, not the window itself. The most common failures are: incorrect flashing kit for the roof covering type, failed or missing soaker under the flashing, or degraded foam seals within the flashing surround.

Leaking Velux flashing repair: £200–£500 — usually a single day's work. Frame seal or glass unit failure: £300–£700. Free written diagnosis and quote before starting any work.

Yes — a slow leak at a skylight can saturate insulation and roof deck below the window, leading to timber rot in surrounding rafters and boarding. We always inspect the surrounding structure during skylight repairs.

Condensation between glazed panes indicates a failed glass unit seal — not a roof leak. The remedy is glass unit replacement, not roof repair.

If the frame is structurally sound and the leak is from the flashing or unit seal, repair or replacement of the specific component is cost-effective. If the frame is cracked or deformed, full window replacement may be more economic. We assess this on the free survey.

Yes — we work with all major roof window brands including FAKRO, RoofLite, Dakea and own-brand installations.

A straightforward flashing repair: 3-5 hours including scaffold. Glass unit replacement: 1-2 hours on site. Full window replacement: 4-6 hours. We aim to complete all skylight work in a single visit.

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