Flat rooflights for Magherafelt: the essentials
Flat rooflights in Magherafelt means fixed double or triple glazed rooflights for flat roofs and extensions. We cover the BT45 district and the rest of County Londonderry, with a survey before any price is fixed.
Wind and rain off the Atlantic make upstand and flashing details important on Northern Irish roofs. In Magherafelt, as anywhere, flat rooflights are the usual choice for kitchen extensions, side returns and flat-roofed back rooms.
We work across County Londonderry, including Magherafelt, and in neighbouring towns such as Cookstown and Coalisland. Access, parking and how the glass reaches the roof are all checked at the survey.
Options we can specify in Magherafelt
- Plastered or lined internal reveal
- Double or triple glazing
- Square, rectangular or long-format sizes
- Solar-control or self-cleaning outer pane
- Rain sensor if paired with an opening unit
- Inner pane laminated for safety overhead
- Slim sightlines from inside — mostly glass, little frame
Things we check at survey
- Needs a properly formed upstand — usually at least 150 mm above the finished roof surface (check the manufacturer's figure)
- New openings in an existing roof need a structural check on joists
Planning and building rules for Magherafelt
Most rooflights on houses in Northern Ireland are permitted development under Class B, but not in a conservation area or on a listed building's curtilage. A side-facing window within 15 m of a neighbouring boundary must be obscure-glazed, and non-opening unless the opening part is more than 1.7 m above the floor.
Northern Ireland's energy rules assess rooflight U-values in the vertical position — unlike England and Wales — and expect 1.6 W/m²K or Band C for replacements. New dwellings must average 1.40 W/m²K across windows, roof windows and rooflights.
Our planning guide covers each nation in more detail.
What do flat rooflights cost in Magherafelt?
Prices below are shown including and excluding VAT. In Magherafelt, as elsewhere, making good inside and access equipment are the main variables.
| Option | Guide price inc VAT | Ex VAT |
|---|---|---|
| Large or triple glazed (1500 × 2500 mm and up) | £2,395 – £4,195 | £1,995 – £3,495 |
| Mid-size double glazed (1000 × 2000 mm) Typical | £1,675 – £2,395 | £1,395 – £1,995 |
| Small double glazed (up to 1000 × 1000 mm) | £1,195 – £1,795 | £995 – £1,495 |
From enquiry to finished job
- Send the details. Postcode, rough size and a photo of the roof and room.
- Free site visit. For new installs we survey free, measure and confirm the roof detail.
- Fixed quote. Product, work and price in writing — nothing is ordered until you agree.
- Fit and make good. We fit, seal, test and finish the reveal, then hand over the paperwork.
Nearby towns
More we do in Magherafelt
Questions about flat rooflights in Magherafelt
How long does it take?
Fitting into a prepared upstand usually takes a day. Forming a new opening in an existing roof, including making good inside, is often two to three days.
Can you fit into my existing flat roof?
Yes. We form a new opening, trim the joists, build and waterproof an upstand and make good the ceiling. A survey confirms the joist direction and roof build-up first.
Do flat rooflights leak?
A well-fitted flat rooflight should not leak. Leaks almost always come from the upstand or membrane detailing, not the glass unit, which is why the upstand height and the way the roof covering is dressed up and under the frame matter more than the brand.
Do you fit flat rooflights in Magherafelt?
Yes. We survey and fit flat rooflights in Magherafelt and across County Londonderry. Send your postcode and we will offer a survey date when we reply.
Is the survey in Magherafelt free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
