What do commercial & industrial rooflights in Welwyn Garden City involve?
Our commercial & industrial rooflights service in Welwyn Garden City covers rooflights for warehouses, schools, offices and retail units. Every job starts with a survey of the opening, the roof covering and the room below, and a fixed written price.
Orangery-style extensions with lanterns are popular across the South East, and solar-control glass makes a big difference on south-facing gardens. In Welwyn Garden City, as anywhere, commercial & industrial rooflights are the usual choice for industrial roofs with tired or fragile rooflight sheets.
Welwyn Garden City sits about 4 km from Hatfield and 9 km from Hertford, and we cover the whole AL8 postcode district and the roads in between.
Specification options
- GRP or polycarbonate in-plane rooflight sheets
- Polycarbonate domes
- Smoke and natural ventilation vents
- Modular glass rooflights
- Continuous barrel-vault rooflights
- Smoke-vent options where needed
- Daylight that reduces daytime lighting
Things we check at survey
- Asbestos surveys may be needed on older roofs
- Fragile rooflights are a known fall hazard — work at height must be planned
Rules and responsibilities in Welwyn Garden City
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.
Read the planning permission guide before you commit to a design.
What do commercial & industrial rooflights cost in Welwyn Garden City?
Prices below are shown including and excluding VAT. In Welwyn Garden City, 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 |
The process, step by step
- Send the details. Postcode, rough size and a photo of the roof and room.
- Survey. We measure the opening, check the roof build-up and agree the options.
- Written price. You receive a fixed price listing the unit, the work and the lead time.
- Fitting and handover. We install, clean down and leave product and warranty documents.
Nearby towns
Other services in Welwyn Garden City
Questions about commercial & industrial rooflights in Welwyn Garden City
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 supply O&M information?
Yes — product data, manufacturer warranties and maintenance notes are handed over at completion.
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 I need to be at home for the survey in Welwyn Garden City?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
Do you fit commercial & industrial rooflights in Welwyn Garden City?
Yes. We survey and fit commercial & industrial rooflights in Welwyn Garden City and across Hertfordshire. Send your postcode and we will offer a survey date when we reply.
