How we approach flat rooflights in Littlehampton
Flat rooflights in Littlehampton means fixed double or triple glazed rooflights for flat roofs and extensions. We cover the BN17 district and the rest of West Sussex, with a survey before any price is fixed.
Across the South East, single-storey kitchen extensions on 1930s semis and post-war detached houses are where most flat rooflights and lanterns go. Typical uses for flat rooflights include landings, bathrooms and rear extensions with flat roofs.
Neighbouring towns include Bognor Regis (10 km) and Worthing (12 km). We offer a survey date when we reply to your enquiry.
What you can choose
- Rain sensor if paired with an opening unit
- Plastered or lined internal reveal
- Square, rectangular or long-format sizes
- Insulated kerb or timber upstand built to suit
- Frame colours: anthracite, black, white or RAL
- Even, top-down daylight across the whole room
- Inner pane laminated for safety overhead
What to check first
- Needs a properly formed upstand — usually at least 150 mm above the finished roof surface (check the manufacturer's figure)
- The roof membrane must be dressed up the upstand before the unit goes on
Planning, building control and Littlehampton
Most rooflights on English houses do not need planning permission, provided they keep within 150 mm of the roof surface and below the ridge line. Listed buildings need listed building consent, flats have no householder permitted development rights, and an Article 4 direction can remove the rights in some conservation areas.
Building Regulations Approved Document L sets a limiting U-value of 2.2 W/m²K for new or replacement rooflights in existing homes, measured in the horizontal plane; roof windows need 1.4 W/m²K or a Band B energy rating. In an extension, glazing including rooflights is normally limited to 25% of the new floor area plus any windows or doors the extension covers, unless a whole-house calculation shows otherwise.
See our building regulations guide for U-values, glazing limits and self-certification.
What do flat rooflights cost in Littlehampton?
Guide prices for flat rooflights in Littlehampton 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 |
|---|---|---|
| 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 |
How the job runs
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Littlehampton address.
- Measure and check. A surveyor visits Littlehampton, measures and checks structure and access.
- Agree the quote. You approve the specification and price before anything is ordered.
- Fitting and handover. We install, clean down and leave product and warranty documents.
Flat rooflights near Littlehampton
More we do in Littlehampton
Flat rooflights in Littlehampton: questions
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 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.
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.
Do I need to be at home for the survey in Littlehampton?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
Is the survey in Littlehampton free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
