Skylight and rooflight fitting in Pontycymer

Pontycymer is a former mining village in the county borough of Bridgend. The name has an alternative spelling with a double m. Since 2022 the village has belonged to the three-member Garw Valley ward. The ward was represented by the Labour Party, except from 1999 to 2004, when Plaid Cymru were elected.

The village's oldest street is Railway Terrace. It started life as Milk Row. Anyone wanting a day out has the Bridgend Valleys Railway on hand, along with many woodland trails through forestry and the mountains that close in on the village.

A drive from Swansea comes to 27.47 miles on the road, heading east, which falls inside the 30 road miles that mark our working area. Blaengarw and Ogmore Vale are the nearest neighbours, and we take surveys in both.

Before choosing glass, look at the shape of the roof above the room that needs the light. A pitched slope suits a roof window sitting flush with its slates or tiles. Over a flat roof the rooflight stands up on a kerb. A hall that sits under a floor above it has no roof to cut into at all, and a sun tunnel reaches it by running a tube from a dome.

Rear slopes on terraced houses tend to be narrow, so one roof window over a landing or bathroom is the usual measure. A semi tends to have the width for two. A roof opening adds a second source of daylight without touching a wall, which counts for rooms that sit between the front and the back of a house and take whatever the end windows leave over. Treat these as general patterns for the house types, a starting point for the roof to correct.

The free survey is where the starting point turns into a plan. Roof and room get looked at before a price is mentioned. A fixed written quote follows, and once the glass is in you hold a ten-year workmanship guarantee on paper.

A rooflight in Pontycymer can bring in two different approvals, each asking its own question. The planning side weighs the finished appearance and what the change does to the street. The Building Regulations side checks the construction of the opening and the strength of the roof beneath it. Bridgend County Borough Council handles planning for Pontycymer.

On a house outside a conservation area, National Park, AONB or World Heritage Site, a rooflight that stays within certain limits on projection, height and side-facing slopes can go ahead as permitted development. The planning permission guide for Wales lists the limits in full. Check your own roof against that list, because the margins are tight.

A flat or maisonette carries no householder permitted development rights at all, which sends a rooflight there through a planning application. A house can lose its rights too. An Article 4 direction made by the council takes them away across an area, and a condition attached to the house's first planning permission can do so for that one property.

Where a house is listed, the question is the building's character. If a rooflight would affect its special architectural or historic interest, listed building consent is needed under the Historic Environment (Wales) Act 2023. The application goes to the planning authority.

When nobody is sure which way a case falls, ask Bridgend's planning team. For formal certainty, the council can issue a Lawful Development Certificate.

Fitting a new rooflight will generally call for Building Regulations approval. The roof has to be opened, the structure has to carry the new unit, and the glazing has to meet the energy rules. Where the work is notifiable, we handle the paperwork with the council's building control service or with a registered building control approver.

It pays to know which route applies before any slate is lifted, because a roof opened up while the paperwork catches up is a poor place to be in a wet week. The case for a rooflight rests on how the room feels to live in and on what the roof can take.

Doubts about the structure get settled at the survey. A roof that has to carry a new unit may need strengthening around the opening, and the fixed written quote follows once that is known. Building control has a say on the energy side too, since the new glass should meet the figures in Approved Document L (Wales) and the unit should be fitted well and reasonably draught-proof.

Under a pitched roof, an attic bedroom or study does well with a roof window. A top-hung sash lifts upward and out of the way of your head. A centre-pivot sash rotates about its middle, bringing the outer pane inside where a cloth can reach it. Approved Document L (Wales) says a new or replacement roof window should reach 1.4 W/m²K, or Window Energy Rating Band B.

Bathrooms are the hardest room for any window, since a shower fills the air with water within minutes. Here the glass wants a warm inner face and the room wants a fan that outlasts the shower. If the window is being swapped, the replacement should leave the room's ventilation at least as good as it was.

A kitchen extension with a flat roof suits a flat roof rooflight, which brings daylight deep into the room as long as the kerb carries a fall. The guidance sets 2.2 W/m²K as the level a rooflight should meet. If the extension is new and a lantern is wanted, Bridgend gets asked first and the order follows its answer.

The darkest spot in many houses is a landing, which has no outside wall and a roof space overhead. A sun tunnel serves it: a small dome sheds the rain without fuss, and a diffuser at the ceiling spreads the light down the stairs.

Existing glass can give up as well. A pane that has fogged between its layers has lost its seal, and we deal with misted rooflights along with new fittings. Where only the glass is renewed and the frame is kept, the energy rules count it differently from a full replacement.

Size is the next question on a swap. With an old VELUX standing open, the top rail of the sash shows a metal plate, and it carries a code that stands for the window's width and height. Plates of this kind have gone on every VELUX made after 1968. A new window of the same size drops into the old opening.

Some glass sits where nobody can reach to wipe it. Activ, from Pilkington, is a self-cleaning coating, and the maker names roof glazing as one of its applications. Daylight starts to break the dirt down, and the next shower rinses it off the pane.

To book a free survey, ring 01792 929062 or fill in the form.