Flat rooflights for Dunoon: the essentials
For Dunoon homes and buildings we offer flat rooflights: fixed double or triple glazed rooflights for flat roofs and extensions. We measure first, specify to the opening and confirm any planning or building-control points before quoting.
Short winter days in Scotland make every square metre of overhead glass count, so rooflight sizing matters. Typical uses for flat rooflights include kitchen extensions, side returns and flat-roofed back rooms.
Neighbouring towns include Gourock (7 km) and Greenock (10 km). We offer a survey date when we reply to your enquiry.
What you can choose
- Rain sensor if paired with an opening unit
- Insulated kerb or timber upstand built to suit
- Double or triple glazing
- Frame colours: anthracite, black, white or RAL
- Square, rectangular or long-format sizes
- Slim sightlines from inside — mostly glass, little frame
- Pairs with an opening unit where you also need ventilation
Things we check at survey
- Needs a properly formed upstand — usually at least 150 mm above the finished roof surface (check the manufacturer's figure)
- Rooflights count toward glazing in an extension, which matters for Building Regulations energy and overheating rules
Do you need permission in Dunoon?
Planning rules in Scotland differ: rooflights are treated as external alterations under Class 2B, with no permitted development in conservation areas. Listed buildings need listed building consent where the work affects their character.
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.
Flat rooflights prices in Dunoon
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 triple glazed (1500 × 2500 mm and up) | £2,395 – £4,195 | £1,995 – £3,495 |
| Mid-size double glazed (1000 × 2000 mm) Typical | £1,675 – £2,395 | £1,395 – £1,995 |
| Small double glazed (up to 1000 × 1000 mm) | £1,195 – £1,795 | £995 – £1,495 |
The process, step by step
- Tell us what you have. Send the PA23 postcode, a rough size and a couple of photos.
- Measure and check. A surveyor visits Dunoon, measures and checks structure and access.
- Fixed quote. Product, work and price in writing — nothing is ordered until you agree.
- Installation day. Usually one day into a prepared opening, longer for new openings.
Neighbouring towns
More we do in Dunoon
Questions about flat rooflights in Dunoon
Do flat rooflights leak?
A well-fitted flat rooflight should not leak. Leaks almost always come from the upstand or membrane detailing, not the glass unit, which is why the upstand height and the way the roof covering is dressed up and under the frame matter more than the brand.
Can you fit into my existing flat roof?
Yes. We form a new opening, trim the joists, build and waterproof an upstand and make good the ceiling. A survey confirms the joist direction and roof build-up first.
Can a flat rooflight be walked on?
Not unless it is designed as a walk-on unit with structural laminated glass. A standard flat rooflight is for light only — if the roof is used as a terrace, choose a walk-on rooflight instead.
Is the survey in Dunoon free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
Do you fit flat rooflights in Dunoon?
Yes. We survey and fit flat rooflights in Dunoon and across Argyll and Bute. Send your postcode and we will offer a survey date when we reply.
