Skylight replacement for Portsmouth: the essentials
Skylight replacement in Portsmouth means replacing tired domes and failed glass with a modern rooflight. We cover the PO1 district and the rest of Hampshire, with a survey before any price is fixed.
Period cottages and conservation-area streets are common in the South East, so slim conservation rooflights are often the right choice. Typical uses for skylight replacement include older extensions due a modern rooflight.
Portsmouth is around 25 km from Southampton, and we survey and fit throughout that part of Hampshire, including the PO1 district.
Choices for your Portsmouth project
- Like-for-like size replacement
- Fixed to electric opening
- Upstand rebuild and insulation
- Misted glass unit replacement only
- Roof window replacement in pitched roofs
- Often reuses the existing opening
- Clearer view and more light
Things we check at survey
- Old glass and domes are disposed of responsibly
- Upstand and roof condition decide the scope
Consents for skylight replacement in Portsmouth
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.
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.
Our planning guide covers each nation in more detail.
What does skylight replacement cost in Portsmouth?
The ranges below are typical for straightforward jobs; your fixed price follows a survey of your roof.
| Option | Guide price inc VAT | Ex VAT |
|---|---|---|
| Replacement with upstand rebuild and opening unit | £2,995 – £4,795 | £2,495 – £3,995 |
| Dome to flat glass upgrade Typical | £1,915 – £2,995 | £1,595 – £2,495 |
| Like-for-like glass rooflight | £1,555 – £2,155 | £1,295 – £1,795 |
How the job runs
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Portsmouth address.
- 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.
Skylight replacement near Portsmouth
Other services in Portsmouth
Skylight replacement in Portsmouth: questions
Can I go bigger when replacing?
Possibly. Enlarging the opening means trimming joists, so we check the structure first.
What do you do with the old unit?
We remove it from site and recycle what can be recycled.
Do I need building regulations approval to replace a rooflight?
Replacements in existing homes generally need to meet current thermal standards and may need notification or approval. We advise on the route for your job.
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.
Do you offer skylight replacement in Portsmouth?
Yes. We carry out skylight replacement in Portsmouth and across Hampshire. Send your postcode and we will offer a survey date when we reply.
