What do commercial & industrial rooflights involve?
Our commercial & industrial rooflights service in County Down covers rooflights for warehouses, schools, offices and retail units. We survey every job before fixing the price.
Wind and rain off the Atlantic make upstand and flashing details important on Northern Irish roofs. Conservation areas and listed buildings in Northern Ireland are excluded from householder permitted development, so we check before quoting.
Towns in County Down
Specification options in County Down
- Polycarbonate domes
- Continuous barrel-vault rooflights
- Smoke and natural ventilation vents
- Modular glass rooflights
- GRP or polycarbonate in-plane rooflight sheets
- Daylight that reduces daytime lighting
- Planned around working sites
Planning and building rules in Northern Ireland
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. Fire classification of rooflight materials near boundaries is checked at specification.
Commercial & industrial rooflights prices in County Down
These are typical supply-and-fit ranges. For an address in County Down, 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 |
|---|---|---|
| Barrel-vault or modular glass rooflight | £3,595 – £8,395 | £2,995 – £6,995 |
| Commercial flat-glass rooflight Typical | £1,795 – £3,595 | £1,495 – £2,995 |
| Dome or in-plane sheet replacement | £1,075 – £1,795 | £895 – £1,495 |
How the job runs
- Tell us about the roof. Send the postcode, rough sizes and a photo or two through the form, WhatsApp or the guide-price tool.
- Free survey. For new installations a surveyor measures the opening, checks the roof build-up and talks through glass and options.
- Fixed written quote. You get the product, the work and the price in writing. Nothing is ordered or paid for until you agree.
- Fitting and handover. We fit, seal and make good, then hand over product data, warranties and any certificate paperwork.
Commercial rooflights in nearby areas
Common questions
Are old rooflights a safety risk?
Older plastic rooflight sheets can become brittle. Anyone working on the roof must treat them as fragile unless proven otherwise.
Can you replace old warehouse rooflight sheets?
Yes. We match the roof profile, replace discoloured or damaged sheets and plan safe access while the building stays in use.
Do you work out of hours?
For occupied buildings we can plan phased or out-of-hours working where access allows.
Do you supply O&M information?
Yes — product data, manufacturer warranties and maintenance notes are handed over at completion.
Do you fit commercial & industrial rooflights across County Down?
Yes. We survey and fit commercial & industrial rooflights across County Down, including Bangor, County Down, Castlereagh, Newtownards.
