Loft conversion skylights in Carshalton: what is involved?
We handle loft conversion skylights across Greater London, including Carshalton. In short: roof windows planned for loft rooms — light, headroom and escape. The survey checks structure, weathering and orientation, so the quote reflects your actual roof.
London homes often run deep from front to back, so the middle of the ground floor is the darkest space — exactly where an overhead rooflight earns its keep. Think of loft conversion skylights for attic bedrooms, offices and en-suites.
We work across Greater London, including Carshalton, and in neighbouring towns such as Wallington and Sutton. Access, parking and how the glass reaches the roof are all checked at the survey.
Options we can specify in Carshalton
- Combination and stacked layouts
- Centre-pivot or top-hung
- Blackout and thermal blinds
- Electric or solar opening
- Balcony roof windows on some ranges
- Escape-window sizing where required
- Light planned around the room layout
Things we check at survey
- Rafter spacing affects window widths
- Escape-window requirements apply to some loft rooms
Planning and building rules for Carshalton
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.
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. Replacing a rooflight or roof window can be self-certified by an installer registered with an authorised competent person scheme; otherwise building control approval is needed.
See our building regulations guide for U-values, glazing limits and self-certification.
Loft conversion skylights prices in Carshalton
These are typical supply-and-fit ranges. For an address in Carshalton, 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 |
|---|---|---|
| Electric top-hung escape window | £1,675 – £2,395 | £1,395 – £1,995 |
| Standard centre-pivot window Typical | £1,195 – £1,675 | £995 – £1,395 |
| Small window into open rafters | £955 – £1,315 | £795 – £1,095 |
From enquiry to finished job
- Tell us what you have. Send the SM5 postcode, a rough size and a couple of photos.
- 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.
- Fit and make good. We fit, seal, test and finish the reveal, then hand over the paperwork.
Neighbouring towns
Other services in Carshalton
Common questions
Do loft roof windows need to be escape windows?
Some loft rooms need an escape window, depending on the layout and the fire strategy for the conversion. Building control confirms the requirement.
Can I add blinds later?
Yes — most manufacturers make blinds for each window size.
Can you work alongside my loft builder?
Yes — we set out and fit the windows to the builder's programme.
Do you fit loft conversion skylights in Carshalton?
Yes. We survey and fit loft conversion skylights in Carshalton and across Greater London. Send your postcode and we will offer a survey date when we reply.
Do I need to be at home for the survey in Carshalton?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
