What do conservation rooflights in Portsmouth involve?
For Portsmouth homes and buildings we offer conservation rooflights: slim, low-profile steel-look rooflights for period and listed roofs. We measure first, specify to the opening and confirm any planning or building-control points before quoting.
Across the South East, single-storey kitchen extensions on 1930s semis and post-war detached houses are where most flat rooflights and lanterns go. Think of conservation rooflights for slate and plain-tile roofs where a quiet roofline matters.
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
- Central vertical glazing bar
- Toughened or laminated double glazing
- Blinds
- Manual or electric opening
- Steel or aluminium frames
- Often preferred by conservation officers
- Suits slate and plain-tile roofs
Before you order: points to check
- Lead or matching flashings may be required
- Projection above the roof line is limited — usually as flush as possible
Consents for conservation rooflights 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.
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. 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 do conservation rooflights cost in Portsmouth?
These are typical supply-and-fit ranges. For an address in Portsmouth, 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 |
|---|---|---|
| Large or electric conservation rooflight | £2,755 – £4,195 | £2,295 – £3,495 |
| Standard conservation rooflight Typical | £2,035 – £2,755 | £1,695 – £2,295 |
| Small conservation rooflight | £1,795 – £2,155 | £1,495 – £1,795 |
How the job runs
- Send the details. Postcode, rough size and a photo of the roof and room.
- Measure and check. A surveyor visits Portsmouth, measures and checks structure and access.
- Written price. You receive a fixed price listing the unit, the work and the lead time.
- Fit and make good. We fit, seal, test and finish the reveal, then hand over the paperwork.
Nearby towns
More we do in Portsmouth
Questions about conservation rooflights in Portsmouth
Will the council accept it?
We cannot promise an outcome, but a slim conservation profile fitted low in the roof is the type many conservation officers ask for.
Do they suit slate roofs?
Yes — flashings are made for slates and for plain tiles.
Do I need consent for a conservation rooflight?
On a listed building you need listed building consent. In a conservation area, check with the council — many areas have Article 4 directions affecting roof alterations.
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 I need to be at home for the survey in Portsmouth?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
