Skylights and rooflights in Merthyr Tydfil
From flat-roof extensions to period slate roofs, we fit the right rooflight for the building in Merthyr Tydfil — after a survey, with a fixed written price.
Wales sees a lot of wind-driven rain, particularly in the west, so upstand height and flashing laps matter more than anywhere.
Jobs in Merthyr Tydfil are planned around access: whether the roof can be reached from the garden, whether a hoist or crane is needed, and where we can park. We check this when we measure.
Flat roof rooflights in Merthyr Tydfil
Lanterns & glass roofs in Merthyr Tydfil
Pitched roofs & lofts in Merthyr Tydfil
Commercial rooflights in Merthyr Tydfil
Upgrades, repairs & fitting in Merthyr Tydfil
Planning and building rules in Wales
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.
Approved Document L in Wales (2022 edition) sets 2.2 W/m²K for rooflights, measured horizontally, and 1.4 W/m²K or Band B for roof windows in existing homes. A revised Welsh Approved Document L takes effect on 4 March 2027; rooflights in new dwellings stay at 2.2 W/m²K.
Also covering near Merthyr Tydfil
Skylight questions: Merthyr Tydfil
Do I need to be at home for the survey in Merthyr Tydfil?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
Can you work alongside my builder in Merthyr Tydfil?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
Is the survey in Merthyr Tydfil free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
Will I need planning permission in Merthyr Tydfil?
In Wales a rooflight on a house is usually permitted development if it stands no more than 15 cm proud of the roof, except on protected land such as conservation areas and National Parks, where permission is needed.
Will a rooflight make my room too hot?
It can on a south-facing roof with clear glass. Solar-control glass, an opening unit and a blind keep the room comfortable.
Can I cancel?
Made-to-measure products are excluded from the statutory 14-day cancellation right, but you can cancel without charge until we place the order with the manufacturer. Our terms explain the rest.
