County Antrim · Northern Ireland

Roof Lanterns in County Antrim

Our glaziers fit roof lanterns across County Antrim, glazing and sealing each unit onto its upstand and explaining any building regulations approval the work needs.

Guide from £1,095
9 towns covered
Postcode areas BT

Roof lantern replacement in County Antrim

A roof lantern is assembled from an aluminium ridge, hip bars and glazing bars that hold sealed glass units on each pitch. It sits on an upstand built around the roof opening. The upstand should be level, weathered into the roof covering and insulated, because a poor upstand causes most leaks and cold spots.

Warm, moist air rises and collects in a roof lantern, so condensation can form on cold winter mornings, especially over kitchens and bathrooms. Thermally broken frames, warm-edge spacers and good room ventilation reduce it, and opening vents in the lantern can release warm air in summer.

The price of a roof lantern or skylight depends on the size and shape, glass specification, frame colour, opening vents or electric operation, and whether the upstand already exists or needs building. Access to the roof and lifting large units add labour. See the guide prices for typical ranges.

Opening skylights and lantern vents can be manual or electrically operated, often with a rain sensor that closes them automatically when it starts to rain. Electric vents need a power supply planned before plastering, so the wiring route is agreed at survey when an opening option is chosen.

Roof lantern above a kitchen island in an open-plan extension

Towns we cover for roof lanterns in County Antrim

Choose your town for local details, nearby areas and the postcode districts we cover.

What applies in County Antrim

Technical Booklet V covers safety glazing in Northern Ireland, including glass in and around doors and low-level glazing where people could walk into it.

Replacement windows on houses in Northern Ireland are often permitted development, but conservation areas and listed buildings can need consent. Check with the council's planning office.

County Antrim has its own coastline, so for homes and businesses near the sea, salt air and wind-driven rain are part of the brief. Coastal lanterns face salt deposits on the glass and frames and strong uplift from wind on exposed roofs. Marine-grade coatings, stainless fixings and secure fixing to a well-built upstand matter, and salt film may need rinsing more often than self-cleaning glass manages alone.

Getting a large lantern onto a terraced flat roof may mean carrying it through the house or lifting it over neighbouring property, so access is planned at survey. Lanterns near a boundary raise fire performance questions, and conservation areas may restrict raised glazing.

Guide prices

Guide prices inc VAT for typical jobs. Remote and island locations are quoted by arrangement. Your written quote fixes the price after measuring.
Typical job	Guide price inc VAT
Lantern 1500 × 1000 mm, fitted to a kerb	£1,395 – £1,795
Lantern 2000 × 1000 mm	£1,695 – £2,095
Lantern 3000 × 1500 mm	£2,795 – £3,695
Flat glass rooflight 1000 × 1000 mm	£1,095 – £1,395

Choosing your roof lanterns

Rectangular hipped lantern

A long ridge with hipped ends, suiting most rectangular extensions and kitchens, sized to the opening and the room below.

Flat framed skylight

A low-profile framed rooflight on a flat roof upstand, fixed or opening, for bathrooms, landings and smaller rooms.

Square or octagonal lantern

A pyramid or eight-sided design that suits square rooms, orangeries and spaces where a central focal point is wanted.

Solar-control glass

Neutral or blue-tinted coatings that reduce heat build-up under south or west-facing lanterns while keeping daylight levels high.

Roof Lanterns in County Antrim: questions

How much does a roof lantern cost?

The cost of a roof lantern depends on its size and shape, the glass specification, frame colour, any opening vents, and whether the upstand exists or needs building. Access to the roof and lifting a large lantern also affect labour. See the guide prices for typical ranges; the written quote fixes the price for your exact specification.

Can I replace my old polycarbonate roof lantern with glass?

Yes, in most cases. A glass lantern is heavier than polycarbonate, so the upstand and roof structure must be able to carry it. If the upstand is sound, level and the right size, a new aluminium lantern can usually sit on it. If not, the upstand is rebuilt first, which the survey will identify.

Should the inner glass in a roof lantern be laminated?

Laminated inner glass is the safer choice and is recommended by the Rooflight Association. If a laminated pane breaks, the interlayer holds the pieces together, so glass is far less likely to fall into the room below. This matters most over kitchens, dining tables, stairs and seating, and it is offered as a standard option.

What guarantee comes with a roof lantern?

Manufacturer guarantees apply to the frame, coating and sealed units, and the terms are confirmed in writing. The upstand and roof covering may be covered separately, depending on who builds them. Guarantee terms for the installation are set out in writing with your quote, so you know exactly what is covered before going ahead.

Which parts of County Antrim do you cover for roof lanterns?

We cover the whole of County Antrim, including Belfast, Lisburn, Newtownabbey, Carrickfergus and Ballymena, and postcode areas BT. Building rules for roof lanterns here follow the regulations for Northern Ireland. Enter your postcode on the quote form and we will confirm cover; then a glazier will arrange a free survey before giving you a written quote.

Other glazing services in County Antrim

All glazing in County Antrim · Roof Lanterns & Skylights across the UK

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