How we approach sun tunnels & tubular skylights in Portsmouth
Sun tunnels & tubular skylights in Portsmouth means light pipes that bring daylight to halls and bathrooms with no window. We cover the PO1 district and the rest of Hampshire, with a survey before any price is fixed.
Many South East homes have been extended more than once, and an old dome over an earlier extension is often due for replacement. Typical uses for sun tunnels & tubular skylights include windowless hallways, landings and bathrooms.
Portsmouth is around 25 km from Southampton, and we survey and fit throughout that part of Hampshire, including the PO1 district.
Options we can specify in Portsmouth
- Ventilation adaptor
- Integrated electric light
- Diffusers in several sizes
- Pitched or flat-roof flashings
- Insulated tube sections
- Works on pitched and flat roofs
- Daylight where no window is possible
Things we check at survey
- Not a substitute for a habitable-room window
- Light output falls with tube length and bends
Do you need permission in Portsmouth?
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. The Future Homes and Buildings Standards, published in March 2026, apply from 24 March 2027 and keep the 2.2 W/m²K limit for rooflights.
Read the planning permission guide before you commit to a design.
Sun tunnels & tubular skylights prices in Portsmouth
Prices below are shown including and excluding VAT. In Portsmouth, as elsewhere, making good inside and access equipment are the main variables.
| 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 Portsmouth address.
- Survey. We measure the opening, check the roof build-up and agree the options.
- 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 Portsmouth
Common questions
Do sun tunnels need planning permission?
Usually not on a house, provided the dome does not project too far and the property is not listed. Check if you live in a conservation area or a flat.
How much light does a sun tunnel give?
A good rigid tunnel on a bright day lights a hallway well. Output depends on tube diameter, length and the number of bends.
Can it work at night?
Some models include a light fitting in the diffuser.
Can you work alongside my builder in Portsmouth?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
How do I book a survey in Portsmouth?
Send your postcode and, if you can, a photo of the roof and the room. We offer a survey date when we reply.
