What are commercial & industrial rooflights?
Across Devon, our commercial & industrial rooflights work covers rooflights for warehouses, schools, offices and retail units. Survey first, fixed price second, fitting third.
Barn and chapel conversions in the South West often need bespoke or shaped rooflights to suit the original structure. Stone cottages, slate roofs and conservation areas are common in the South West, and conservation-profile rooflights keep the roofline quiet.
Towns in Devon
Options we can specify
- Modular glass rooflights
- Polycarbonate domes
- Smoke and natural ventilation vents
- Continuous barrel-vault rooflights
- Mesh or grilles under fragile areas
- Daylight that reduces daytime lighting
- 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. Product data for building control is supplied with every quote.
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 Devon?
Guide prices for commercial & industrial rooflights in Devon 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 |
|---|---|---|
| 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 quote from drawings?
Yes, with a site survey to confirm.
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 I need to be at home for the survey in Devon?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
