Roof lanterns for Johnstone: the essentials
Our roof lanterns service in Johnstone covers hipped glass lanterns that lift the ceiling of orangeries and extensions. Every job starts with a survey of the opening, the roof covering and the room below, and a fixed written price.
Tenements and flats are common in Scottish towns and cities, where rooflights over stairwells and top-floor flats need the owners' and factor's agreement. Typical uses for roof lanterns include orangeries, kitchen-diners and single-storey extensions.
We work across Renfrewshire and Inverclyde, including Johnstone, and in neighbouring towns such as Paisley and Erskine. Access, parking and how the glass reaches the roof are all checked at the survey.
Options we can specify in Johnstone
- Internal and external colours
- Aluminium or uPVC systems
- Rectangular, square or bespoke sizes
- Solar-control or self-cleaning glass
- LED lighting in the plaster box
- Can include opening vents
- Classic look that suits period and modern homes
Things we check at survey
- Plaster-box depth affects how the lantern looks from below
- Needs a strong, level kerb or upstand
Do you need permission in Johnstone?
Planning rules in Scotland differ: rooflights are treated as external alterations under Class 2B, with no permitted development in conservation areas. Flats and tenements are outside householder permitted development, so check with the planning authority first.
Scottish energy standards for glazing, including rooflights, use an area-weighted average of 1.4–1.6 W/m²K in extensions, so most modern units comply comfortably. Replacing a rooflight, frame included, does not need a building warrant, but the work must still meet the building standards.
Read the planning permission guide before you commit to a design.
Guide prices for Johnstone
The ranges below are typical for straightforward jobs; your fixed price follows a survey of your roof.
| Option | Guide price inc VAT | Ex VAT |
|---|---|---|
| Large or bespoke aluminium lantern | £5,995 – £10,795 | £4,995 – £8,995 |
| Mid-size aluminium lantern (2 × 3 m) Typical | £3,955 – £5,995 | £3,295 – £4,995 |
| Small lantern (1 × 2 m) | £2,995 – £3,955 | £2,495 – £3,295 |
From enquiry to finished job
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Johnstone address.
- Measure and check. A surveyor visits Johnstone, 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.
Nearby towns
More we do in Johnstone
Common questions
How big can a lantern be?
Aluminium systems go to around three by six metres in standard ranges; larger sizes are made to order.
Do roof lanterns get hot?
They can in summer if clear glass is used on a south-facing roof. Solar-control glass and an opening vent make a big difference.
Do they leak?
Modern lanterns are sealed systems. Leaks usually trace back to the kerb or roof membrane detail, which we form and check ourselves.
Can you work alongside my builder in Johnstone?
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 Johnstone?
Send your postcode and, if you can, a photo of the roof and the room. We offer a survey date when we reply.
