What do sun tunnels & tubular skylights in Carshalton involve?
Our sun tunnels & tubular skylights service in Carshalton covers light pipes that bring daylight to halls and bathrooms with no window. Every job starts with a survey of the opening, the roof covering and the room below, and a fixed written price.
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 sun tunnels & tubular skylights for small internal rooms where a full rooflight will not fit.
From Carshalton to Wallington, Sutton and Mitcham, the same survey-first process applies: measure, specify, fix the price, then fit.
Options we can specify in Carshalton
- Ventilation adaptor
- Diffusers in several sizes
- Pitched or flat-roof flashings
- Rigid (brighter) or flexible tubes
- Integrated electric light
- Daylight where no window is possible
- Works on pitched and flat roofs
Before you order: points to check
- Not a substitute for a habitable-room window
- Tube runs need insulation in cold lofts to limit condensation
Planning, building control and Carshalton
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.
For English homes the energy rules ask for rooflights of 2.2 W/m²K or better and roof windows of 1.4 W/m²K (or WER Band B); most modern double glazed units meet both. 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.
Sun tunnels & tubular skylights prices in Carshalton
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 rigid tunnel, long run | £1,675 – £2,275 | £1,395 – £1,895 |
| Standard rigid tunnel Typical | £1,315 – £1,795 | £1,095 – £1,495 |
| Compact flexible tunnel | £1,075 – £1,435 | £895 – £1,195 |
What happens next
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Carshalton address.
- Free site visit. For new installs we survey free, measure and confirm the roof detail.
- 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.
Neighbouring towns
More we do in Carshalton
Common questions
Rigid or flexible tube?
Rigid tubes carry much more light. Flexible tubes are easier where the loft is cluttered, but lose light faster.
Will it get condensation?
Insulating the tube where it passes through a cold loft prevents most condensation.
Can it work at night?
Some models include a light fitting in the diffuser.
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.
Can you work alongside my builder in Carshalton?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
