Skylight repairs & leak fixes for Ystradgynlais: the essentials
Skylight repairs & leak fixes in Ystradgynlais means leak tracing, resealing, actuator repairs and glass replacement. We cover the SA9 district and the rest of Powys, with a survey before any price is fixed.
Slate roofs, stone cottages and terraced valleys are typical across Wales, and slim rooflights that sit low in the slates suit them best. Skylight repairs & leak fixes suit leaks, condensation, misted units and failed actuators.
From Ystradgynlais to Pontardawe, Neath and Briton Ferry, the same survey-first process applies: measure, specify, fix the price, then fit.
Choices for your Ystradgynlais project
- Upstand and membrane repairs
- Planned maintenance visits
- Glass unit replacement
- Actuator, motor and control repairs
- Resealing and re-flashing
- Misted unit replacement
- Seal and flashing repairs
What to check first
- Parts availability varies with the age of the unit
- Commercial roofs need access and fall protection
Planning, building control and Ystradgynlais
Welsh householder permitted development (Class C) allows rooflights that project no more than 15 cm and sit no higher than the existing roof — but not in conservation areas, National Parks, AONBs or World Heritage Sites. A side-facing rooflight within 10.5 m of the boundary must be obscure-glazed, and non-opening unless the opening part is more than 1.7 m above the floor.
Welsh Building Regulations expect new or replacement rooflights to reach 2.2 W/m²K and roof windows 1.4 W/m²K or a Band B rating. Wales also has its own overheating rules (Part O) for new homes, in force since November 2022.
Read the planning permission guide before you commit to a design.
Guide prices for Ystradgynlais
Guide prices for skylight repairs & leak fixes in Ystradgynlais are the same as anywhere we work — what changes the price is the job: access, structure, scaffold and finishing.
| Option | Guide price inc VAT | Ex VAT |
|---|---|---|
| Glass unit or actuator replacement | £595 – £1,555 | £495 – £1,295 |
| Upstand or membrane repair Typical | £355 – £955 | £295 – £795 |
| Diagnostic visit and reseal | £235 – £475 | £195 – £395 |
What happens next
- Tell us what you have. Send the SA9 postcode, a rough size and a couple of photos.
- Measure and check. A surveyor visits Ystradgynlais, measures and checks structure and access.
- Fixed quote. Product, work and price in writing — nothing is ordered until you agree.
- Installation day. Usually one day into a prepared opening, longer for new openings.
Skylight repairs & leak fixes near Ystradgynlais
Other services in Ystradgynlais
Common questions
Why is my skylight leaking?
Common causes are a failed seal, a membrane that has split or lifted at the upstand, a low upstand, blocked drainage or condensation mistaken for a leak.
Is it condensation or a leak?
Condensation forms on the inside face on cold days and comes back in the same pattern. A leak appears when it rains and often tracks down the reveal.
Can you repair an electric rooflight that will not open?
Often, yes — actuators, controllers and rain sensors can be replaced if parts are available.
Do I need to be at home for the survey in Ystradgynlais?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
Do you offer skylight repairs & leak fixes in Ystradgynlais?
Yes. We carry out skylight repairs & leak fixes in Ystradgynlais and across Powys. Send your postcode and we will offer a survey date when we reply.
