Backs of a red-brick terrace with single-storey rear extensions and rooflights on the flat roofs

Matching a rooflight and skylight to Dee-shore terraces and bungalows at Bagillt

Strung along the Dee estuary on the Flintshire shore, Bagillt is a former lead and coal village of slate-roofed terraces, ex-council rows and newer estates running up the slope behind the coast road. Rooflight installation in Bagillt is work for a Welsh roof facing open water, and every skylight is detailed for it.

23.6 road miles south-west of Liverpool city centre

What leaves the back rooms of a Bagillt terrace so gloomy?

  • The miners' terraceDown the older streets near the main road, a narrow Victorian terrace lets in daylight only at the front and the back, so the middle room and the stair stay dark all year.
  • The estuary-edge bungalowUp on the higher roads, the bungalows are deep in plan, and a bathroom set in the heart of one has no outside wall at all, so the only place left for daylight is the roof above it.
  • The estate house stairsOn the newer estates, a square hall and a stair with one landing window give a house a dim core, and a rooflight above the stairs gives the whole upstairs more light than an extra lamp can.

Miners' terrace stairs, shore bungalows, estate houses

Skylight installation in Bagillt covers the oldest slate terraces near the village centre, the post-war council housing and bungalows on the slope, and the newer estate homes on the edge, and these are the services those roofs need.

  • Lanterns for bigger rear extensions on the upper roads, sized to the opening the structure can safely take.
  • Flat rooflights for back kitchens and porches built onto the older terraces, where a felt roof can take a kerb and a sealed unit.
  • Roof windows for terrace attics and loft conversions, flashed into Welsh slate so that rain off the estuary meets a tight, lapped edge.
  • VELUX and equivalent units for estate houses, matched to the rafter spacing and tile profile of a roof built in the last few decades.

A working village of slate terraces that grew with the smelters and pits

Bagillt's streets follow its industrial past. The village lies on a thin strip of land between the Dee estuary and the rising ground behind, and for generations it lived off lead smelting, coal and the works along the shore. Rows of terraced houses went up to hold the workforce, built of brick or local stone and roofed in Welsh slate. They are plain, sturdy houses, two storeys high, with a small back yard and a roof of simple pitched slate, and they make up much of the older part of the village near the main road.

A terrace like this has a clear pattern: daylight reaches the two ends of the house, front and back, while the middle stays in shadow. Staircases run up between party walls, landings have no window, and the attic, if it is used at all, has only a small gable or none. A roof window set in the rear pitch lights the stair best, and it turns the attic into a usable room with the street front left as it was. Many terraces also have an outshot or flat-roofed extension at the back, which can take a flat rooflight.

Above the old village, the ground rises and the housing changes. Post-war council houses and bungalows fill many of the upper roads, with tiled pitched roofs, regular rafters and shallow lofts. They are the simplest roofs in the village to work on, and a sun tunnel is often the best way to light a bungalow's inner bathroom or hall.

The newest housing sits on the edges, in estates built in recent decades. These are brick houses with concrete tile roofs, open-plan kitchens, and a stair that climbs through the centre of the floor. Builders of this period gave little thought to daylight on the stairs, so a roof window or a small rooflight above the landing is a common addition. Houses of this age also sometimes have the original roof window or rooflight still in place, and a unit fitted when the house was built may now be misted or leaking at the frame.

Bagillt housing and the light that suits it
Part of the villageBuildingRooflight that suits it
Near the main roadSlate-roofed terraceRear roof window, flat rooflight on an outshot
Upper roadsPost-war house or bungalowSun tunnel to a hall or bathroom
Estate edgesModern brick and tile houseRoof window above the stair
Larger plotsDetached house with an extensionLantern over the new kitchen

The open water of the Dee and what it does to a roof

Bagillt faces north-east across the Dee estuary towards the Wirral, and the shoreline here is open, flat and exposed. The weather moves across the water without much to stop it. The prevailing south-westerly comes over the rising ground behind the village, but weather from the west and north-west runs along the estuary from the sea beyond, and it carries moisture and a trace of salt that settle on glass, metal and sealant. On a rainy day, water is driven against the slope at an angle that tests every junction in a roof.

That calls for a particular finish. Wind-driven rain looks for any easy path into an opening, so a roof window set in slate gets a purpose-made flashing kit: it laps under the slates above, over the slates below, and has soakers down each side. We work slate carefully, as it is brittle and often old, and a cracked slate beside a new opening is a leak waiting to happen. Sound slates are set aside and relaid, and weak ones are replaced to match, with the local look kept intact.

Flat roofs in Bagillt tend to sit at the back of the older terraces, over kitchens or sculleries, and they are often old felt that has seen a lot of weather. The kerb for a rooflight has to stand on a sound deck, with the covering dressed up the upstand, so we check what lies beneath it ahead of the first cut. A roof that holds standing water or has soft boards will need work before a rooflight can go on, and the quote lists it.

Access is tight on some of the old streets. Terraces front straight onto the pavement, and the back yards can be small and enclosed, with no room for a tower. Working from inside the roof void is often easier, since the opening can be cut from below and the unit lowered into place with the slope still covered. On the slope above the village, access is usually better, although a steep garden may need scaffold.

Wind shapes the timing of the work as well. A dry window of calm weather is worth waiting for, because an open roof on an estuary-facing slope can fill with rain very fast. Each job is planned, with a tarpaulin and spare slates to hand, so that the hole is formed, the unit set and the flashing finished in the same visit.

  • Whether the slates around the opening are sound enough to relay
  • The deck beneath any felt roof at the back of a terrace
  • How the party walls sit next to the planned opening
  • Whether the tube route in a bungalow loft is clear of ducts and tanks
  • Where a tower or ladder can stand safely on a narrow street

Flintshire County Council, Cadw and the Welsh route to a certificate

Bagillt is in Wales, so the rules that govern a rooflight here are the Welsh ones, and we send the notification to Flintshire County Council ourselves. What a new rooflight must meet in Wales is explained on a separate page: the Welsh regime for a new rooflight.

Planning is a separate matter, and in Wales it follows the Welsh permitted development rules. Many householders can fit a rooflight on a house without applying, but the conditions are set by the Welsh Government, not by the English rules, so check the position on the gov.wales site or ask the planning team at Flintshire County Council. Flats and maisonettes are treated differently from houses and may need an application. We tell you which applies once we have seen the property, before you decide.

Listed buildings in Wales are looked after by Cadw, the Welsh Government's historic environment service, and the lists of protected buildings are on the Cadw site. Altering the roof of a listed building means applying to the council for listed building consent, and the council looks closely at the design of the rooflight itself. Bagillt has older buildings, some of them chapels and farm buildings. We do not guess which are listed and ask the council at the survey. A protected building calls for a slim conservation-style unit that sits flush with the slates, and the rules for protected roofs explain how that works in practice.

The same goes for conservation areas. The council can say whether an address falls inside one and whether any special restriction applies to the roof, which matters most on the front slope facing the street. We always check this at the start, as it affects which unit is suitable and where it can go.

Once the survey is done, the quote covers the unit, the fitting and the notification together. Nothing is ordered until the planning and listing questions are answered, and a ten-year guarantee on the workmanship closes the job.

Across the border the law is Welsh, and a rooflight here follows the Welsh rules from planning through to the certificate.

Bagillt roofs, Flintshire rules and the trip from Liverpool

I have a miners' terrace near the main road. Can the back slope take a roof window?

A rear roof window on a miners' terrace is the standard way to light a terrace stair and attic, and it keeps the street front unchanged. We check the slates and rafters at the survey, and we confirm the Welsh planning position first, so that nothing is ordered until it is settled.

Which rooflight suits a bungalow on the upper roads with a windowless bathroom?

A sun tunnel is the usual choice. It carries daylight down a tube from a small dome on the roof, and no structural opening is needed. We check the loft depth, the tube route and any ducts or tanks in the way at the survey.

Do you also cover the roads inland from the shore and the farms outside Bagillt?

They are included, as the page covers the village from the estuary shore up the slope behind it, and the farms and lanes nearby. If you are not sure that your address is in range, send it by WhatsApp and we will tell you.

Will the old stone walls of some Bagillt houses cause trouble when an opening is cut in the roof?

The walls matter less than the roof, because a rooflight is cut into the rafters and slope and leaves the stone or brick below alone. Where a gable or party wall sits close to the planned opening we look at it at the survey, and we position the frame so that the rafters either side stay sound and the lining can be finished neatly inside.

Is there anything on a Bagillt roof that I should clear before the survey visit?

Clear the loft hatch and the floor below the planned opening, and move any boxes or stored furniture away from the stair. On a terrace we will look at the back yard for ladder space, and on a bungalow we need a few minutes in the loft to check where the tube or frame can run.

Flint along the shore, Holywell up the hill

Flint lies along the Dee shore in one direction and Holywell climbs the hill in the other, and both have their own pages.

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Get a fixed quote in Bagillt

  • No obligation
  • We survey the roof before we price
  • WhatsApp or phone, whichever suits

What happens next: we arrange a survey at a time that suits you, measure the roof and the room, then send a fixed written quote. Nothing is booked until you say yes.