A leaking skylight in a Bristol loft conversion doesn't just ruin the ceiling below it.
Left unattended, water tracking from a failed skylight flashing saturates the surrounding timber, damages insulation, and causes mould growth in the loft space — all before a visible damp patch appears in the room below.
The good news is that most skylight problems in Bristol are straightforward to diagnose and fix. The flashing is the cause of the leak in the majority of cases — not the glass, not the frame, and not the roof around it. Getting that diagnosis right before any work begins is what separates a lasting repair from a recurring problem.
Leaking Flashing: The most common cause of "skylight leaks." We repair or replace the metal flashing kits that bridge the gap between your roof and the window frame.
Blown Double Glazing (Foggy Glass): If your skylight looks "steamy" inside the glass, the vacuum seal has failed. We offer glass-only replacements, restoring your view and your window’s U-value without removing the entire frame.
Failed Gaskets & Seals: Over time, rubber seals become brittle. We install high-performance, weather-resistant gaskets that eliminate draughts and stop water ingress during heavy South West gales.
Mechanical & Motor Issues: Whether it’s a broken hinge, a snapped cord, or a faulty Velux Integra motor, we source genuine parts to get your window opening and closing smoothly again.
Free 4K Drone Survey
We don't ask you to pay for scaffold just to find out what's wrong. Our drone inspects the full external flashing, frame seal, and surrounding slate or tile before we discuss any repair. You see the footage. No guesswork.
Velux Specialists — All Models and Years
We work on every Velux model from 1980s manual centre-pivots to current electric and solar Integra units. We know which flashing kit applies to which model and year — which means we arrive with the right parts rather than ordering them after the visit.
Bristol Loft Conversion Experience
The majority of Bristol's skylight stock sits in loft conversions carried out between 1990 and 2015 — Victorian terraces in Fishponds, Bishopston, Southville, and Bedminster predominantly. We understand the specific slate profiles and roof pitches these conversions involved and how they affect flashing specification.
10-Year Workmanship Guarantee
Every skylight repair is backed by a full 10-year workmanship guarantee. Checkatrade vetted — every review independently verified.
We cover all BS postcodes across Bristol for skylight repairs and replacements. Areas we regularly work in include:
Bishopston, Fishponds, Southville, Bedminster, Totterdown — high concentration of 1990s and 2000s loft conversions with ageing Velux flashing kits.
Clifton, Redland, Cotham, Henleaze — period property loft conversions where flashing specification needs to account for reclaimed Welsh slate profiles.
Filton, Kingswood, Bradley Stoke, Staple Hill — post-war and new build properties with flat rooflights and modern Velux installations.
If your skylight is being repaired or the glass unit replaced, it's worth considering a thermal upgrade at the same time — the additional cost is modest when the window is already being worked on.
We specify upgrades honestly — only recommending them where the existing unit genuinely benefits from the improvement, not as a standard upsell on every job.
In Bristol’s damp climate, condensation is common. If the water appears as tiny droplets across the whole pane, it’s likely humidity. If you see brown staining on the plasterboard or water dripping from the frame corners, you have a skylight leak. Our drone survey can confirm this in minutes.
Yes. If your frame is in good condition but the glass is cracked or "blown," we can perform a skylight glass replacement. This is significantly cheaper and faster than a full installation and involves minimal disruption to your interior décor.
Absolutely. All our permanent repairs are backed by a 10-year workmanship guarantee, and any replacement Velux glass or parts come with their own manufacturer warranties.
Minor seal repairs and mechanical fixes start from £150. Glass replacements and flashing overhauls vary by size but are always quoted as a fixed price after our initial assessment.
Most skylight repairs in Bristol are completed within 2 to 4 hours once we are on-site. We carry common Velux seals and parts in our vans to ensure a swift resolution.
Most 20-year-old Velux frames are still structurally sound — the glass sealed unit and the flashing kit are the elements that reach end of life first. In most cases a flashing kit replacement and new sealed unit restores the window to full performance for another 20 years at a fraction of the cost of full window replacement. We assess each unit individually during the survey and give you an honest recommendation.
Yes — we install new Velux rooflights into existing pitched roofs across Bristol. Planning permission is generally not required for a rooflight installation under permitted development unless the property is listed or in a Conservation Area where additional restrictions apply. We advise on planning requirements as part of every new installation survey.
This is the question that determines everything — because the repair for a failed flashing is completely different to the repair for a blown glass unit, which is different again to a slate failure in the surrounding roof.
Here's how we identify which situation you're in:
Water dripping from the frame corners or tracking down the window frame — almost always a flashing failure. The flashing kit at the junction between the frame and the surrounding slate has lifted or corroded. The glass and the roof are typically sound.
Foggy or steamy appearance between the glass panes — sealed unit failure. The insulating gas has been lost. This is a glass replacement, not a roofing repair.
Draught around the frame perimeter with no visible water ingress — gasket failure. The rubber perimeter seal has degraded. Repair without disturbing the surrounding slate.
Water appearing on the ceiling away from the window frame — the surrounding slate or tile rather than the window itself is the likely source. The skylight may be coincidental. Our drone survey maps the full surrounding roof area to confirm the source before any repair is specified.
Most skylight problems in Bristol are fixable in a single visit once the cause is correctly diagnosed.
The issue is that most skylight leaks get patched rather than diagnosed — silicone around the frame, a temporary seal over the flashing — which delays the correct repair and allows water to continue tracking through the surrounding structure.
Free drone survey, correct diagnosis before any work is agreed, fixed written quote.
We don’t just "patch leaks." At TD Roofing, we're your Bristol Roofers that deliver engineered solutions specifically designed to withstand the high-velocity winds of the Severn Estuary. Every project is executed strictly to BS 5534 standards, ensuring your home has the maximum wind resistance and structural longevity required for the Bristol climate.
TD Roofing Contractors are your local roofing contractors in Bristol, providing 20+ years of expert service. From emergency roof repairs to new slate installations, we cover all BS postcodes with quality and integrity.
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