What do sliding rooflights in Falmouth involve?
We handle sliding rooflights across Cornwall, including Falmouth. In short: box rooflights whose glass lid slides back for walk-out roof access. The survey checks structure, weathering and orientation, so the quote reflects your actual roof.
Western coasts take wind-driven rain, so we pay close attention to upstand height and flashing laps on exposed roofs. In Falmouth, as anywhere, sliding rooflights are the usual choice for walk-out access where a hatch would feel cramped.
Neighbouring towns include Truro (12 km) and Redruth (14 km). We offer a survey date when we reply to your enquiry.
What you can choose
- Anthracite, black or RAL frames
- Integrated balustrade on some ranges
- Rain sensor
- Electric drive with safety edge
- Double or triple glazing
- Electric operation with safety stops
- Replaces a dormer or stair enclosure on some roofs
Before you order: points to check
- Weight and point loads need a structural check
- The stair opening and headroom must meet Building Regulations
Consents for sliding rooflights in Falmouth
In England a rooflight on a house is usually permitted development under Class C if it projects no more than 150 mm beyond the roof slope and sits no higher than the ridge. A rooflight on a side-facing slope must be obscure-glazed, and fixed shut unless the opening part is more than 1.7 m above the floor.
Under Approved Document L, a rooflight added to an English home must achieve at least 2.2 W/m²K (horizontal plane), and a roof window 1.4 W/m²K or Window Energy Rating Band B. 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.
Read the planning permission guide before you commit to a design.
What do sliding rooflights cost in Falmouth?
Guide prices for sliding rooflights in Falmouth 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 box slider with electric drive | £11,995 – £20,395 | £9,995 – £16,995 |
| Standard box slider Typical | £8,995 – £13,195 | £7,495 – £10,995 |
| Flat sliding lid | £7,195 – £9,595 | £5,995 – £7,995 |
From enquiry to finished job
- Send the details. Postcode, rough size and a photo of the roof and room.
- Free site visit. For new installs we survey free, measure and confirm the roof detail.
- 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.
Nearby towns
More we do in Falmouth
Common questions
Does it need planning permission?
A box unit that projects above the roof plane can need planning permission, especially on the front of a house or in a conservation area. We check before you order.
What if it is raining?
Fitted with a rain sensor, an electric unit closes automatically. Most also have a manual override for power cuts.
Can children open it?
Controls can be key-switched or placed out of reach. We will set the controls up to suit the household.
Is the survey in Falmouth free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
How do I book a survey in Falmouth?
Send your postcode and, if you can, a photo of the roof and the room. We offer a survey date when we reply.
