What are commercial & industrial rooflights?
Commercial & industrial rooflights in Merseyside means rooflights for warehouses, schools, offices and retail units. Every quote follows a survey of the roof and the room below.
Stone and brick terraces are typical across the North West, and roof windows in rear slopes are a common way to light attic rooms. Rear kitchen extensions on North West semis often have small domes from decades ago that leak or have yellowed.
Towns in Merseyside
Specification options in Merseyside
- Smoke and natural ventilation vents
- Modular glass rooflights
- Mesh or grilles under fragile areas
- Continuous barrel-vault rooflights
- GRP or polycarbonate in-plane rooflight sheets
- Planned around working sites
- Replacement of discoloured or fragile sheets
Planning and building rules in England
On commercial roofs the main questions are usually building control, fire classification of rooflight materials and safe access rather than householder permitted development. We confirm the route for your building before ordering.
For buildings other than dwellings, Approved Document L Volume 2 sets limiting U-values of 2.2 W/m²K for rooflights and 3.0 W/m²K for roof ventilators, including smoke vents. Fragile-roof safety and access are planned before work starts.
What do commercial & industrial rooflights cost in Merseyside?
Prices below are shown including and excluding VAT. In Merseyside, as elsewhere, making good inside and access equipment are the main variables.
| 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
Can rooflights double as smoke vents?
Some units are certified smoke ventilators. See our smoke-vent rooflights page.
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.
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.
Do you fit commercial & industrial rooflights across Merseyside?
Yes. We survey and fit commercial & industrial rooflights across Merseyside, including Liverpool, Birkenhead, St Helens.
