How we approach dome rooflights in Lisburn
We handle dome rooflights across County Antrim, including Lisburn. In short: polycarbonate and acrylic domes for flat roofs, new or replacement. The survey checks structure, weathering and orientation, so the quote reflects your actual roof.
Many Northern Irish homes have later flat-roofed kitchen extensions where an old dome can be swapped for glass. Typical uses for dome rooflights include older flat roofs with yellowed or leaking domes.
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
- Polycarbonate or acrylic
- Fixed or hinged with vent
- Clear, opal or tinted
- Twin, triple or quad skin
- Fall-through protection mesh
- Light, impact-resistant domes
- Low cost per unit
Things we check at survey
- Plastic domes have a lower acoustic and thermal performance than glass
- Fire classification matters on some roofs
Building control and safety duties in Lisburn
On commercial roofs the main questions are usually building control, fire classification of rooflight materials and safe access rather than householder permitted development. Product data for building control is supplied with every quote.
For non-domestic buildings in Northern Ireland, Technical Booklet F2 covers energy performance; we supply the manufacturer's data for building control. Fragile-roof safety and access are planned before work starts.
Read the planning permission guide before you commit to a design.
Dome rooflights prices in Lisburn
Guide prices for dome rooflights in Lisburn are the same as anywhere we work — what changes the price is the job: access, structure, scaffold and finishing.
| Option | Guide price inc VAT | Ex VAT |
|---|---|---|
| Dome and new insulated upstand | £955 – £1,675 | £795 – £1,395 |
| Hinged or vented dome Typical | £715 – £1,195 | £595 – £995 |
| Replacement fixed dome | £475 – £835 | £395 – £695 |
From enquiry to finished job
- Tell us what you have. Send the BT27 postcode, a rough size and a couple of photos.
- Measure and check. A surveyor visits Lisburn, measures and checks structure and access.
- Agree the quote. You approve the specification and price before anything is ordered.
- Fit and make good. We fit, seal, test and finish the reveal, then hand over the paperwork.
Nearby towns
More we do in Lisburn
Common questions
Why has my dome gone yellow?
UV breaks down older plastics over time. Modern domes have UV-protective layers, but all plastics age.
Should I replace a dome or switch to glass?
A dome is cheaper and quick; glass gives a clear view and better performance. On a tight budget, or a commercial roof with many units, domes remain sensible.
Are domes safe to walk on?
No. Treat any rooflight as fragile unless it is specifically certified non-fragile, and never stand on it.
How do I book a survey in Lisburn?
Send your postcode and, if you can, a photo of the roof and the room. We offer a survey date when we reply.
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.
