Ridge & pitched glass roofs in Lisburn: what is involved?
Ridge & pitched glass roofs in Lisburn means dual-pitch glazed roofs for side returns, links and long extensions. We cover the BT27 district and the rest of County Antrim, with a survey before any price is fixed.
Wind and rain off the Atlantic make upstand and flashing details important on Northern Irish roofs. Ridge & pitched glass roofs suit terraced-house side returns that would otherwise be dark.
We work across County Antrim, including Lisburn, and in neighbouring towns such as Belfast and Castlereagh. Access, parking and how the glass reaches the roof are all checked at the survey.
Choices for your Lisburn project
- Opening vents and electric actuators
- Integrated gutters and box gutters
- Fixed or retractable shading
- Solar-control, self-cleaning or tinted glass
- Dual-pitch or mono-pitch
- Works with exposed brick and period detail
- Opening vents available
What to check first
- Overheating is a real risk on south-facing glass roofs
- Large glass roofs affect the energy calculation for the extension
Planning and building rules for Lisburn
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. Listed buildings also need listed building consent from the council.
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. Extensions follow a 25% glazing allowance in Technical Booklet F1.
See our building regulations guide for U-values, glazing limits and self-certification.
What do ridge & pitched glass roofs cost in Lisburn?
These are typical supply-and-fit ranges. For an address in Lisburn, scaffold, a hoist for heavy glass, or a new structural opening can move the figure, which is why we survey first.
| Option | Guide price inc VAT | Ex VAT |
|---|---|---|
| Long run with vents and solar glass | £9,595 – £15,595 | £7,995 – £12,995 |
| Typical side return (about 2 × 5 m) Typical | £5,995 – £9,595 | £4,995 – £7,995 |
| Short ridge rooflight | £4,795 – £5,995 | £3,995 – £4,995 |
From enquiry to finished job
- Tell us what you have. Send the BT27 postcode, a rough size and a couple of photos.
- 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.
Ridge & pitched glass roofs near Lisburn
Related work in Lisburn
Common questions
Do I need a party wall agreement?
If the work affects a party wall or boundary, the Party Wall etc. Act 1996 may apply in England and Wales. We flag this at survey so you can serve notice in time.
Will it be noisy in the rain?
Glass is quieter than polycarbonate. Triple glazing or laminated glass reduces rain noise further.
How long does a ridge roof take to fit?
Typically two to four days once the walls and supports are ready, depending on length and access.
Can you work alongside my builder in Lisburn?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
Do I need to be at home for the survey in Lisburn?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
