Dome rooflights for St Albans: the essentials
We handle dome rooflights across Hertfordshire, including St Albans. 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.
Larger gardens in much of the South East mean deeper rear extensions, and deeper rooms need light from above rather than only from the doors. In St Albans, as anywhere, dome rooflights are the usual choice for schools, flats and commercial flat roofs.
St Albans is around 11 km from Watford, and we survey and fit throughout that part of Hertfordshire, including the AL1 district.
What you can choose
- Twin, triple or quad skin
- Insulated PVC or GRP upstands
- Fixed or hinged with vent
- Polycarbonate or acrylic
- Clear, opal or tinted
- Fixed, hinged or vented options
- Light, impact-resistant domes
Things we check at survey
- Fire classification matters on some roofs
- Plastic domes have a lower acoustic and thermal performance than glass
Regulations for dome rooflights in St Albans
For non-domestic buildings, planning depends on the building and its location; building regulations cover thermal performance and the fire classification of rooflights near boundaries. 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. Fire classification of rooflight materials near boundaries is checked at specification.
Read the planning permission guide before you commit to a design.
Dome rooflights prices in St Albans
These are typical supply-and-fit ranges. For an address in St Albans, 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 |
|---|---|---|
| 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 |
The process, step by step
- Get in touch. Use the form, WhatsApp or the guide-price tool with your St Albans address.
- Measure and check. A surveyor visits St Albans, measures and checks structure and access.
- Written price. You receive a fixed price listing the unit, the work and the lead time.
- Installation day. Usually one day into a prepared opening, longer for new openings.
Neighbouring towns
More we do in St Albans
Dome rooflights in St Albans: questions
Why has my dome gone yellow?
UV breaks down older plastics over time. Modern domes have UV-protective layers, but all plastics age.
Can domes open?
Hinged and vented domes are available, manual or electric.
Can you replace just the dome?
Yes, if the upstand is sound and the size matches. Otherwise we replace both.
Can you work alongside my builder in St Albans?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
How do I book a survey in St Albans?
Send your postcode and, if you can, a photo of the roof and the room. We offer a survey date when we reply.
