Skylight repairs & leak fixes in Portsmouth: what is involved?
For Portsmouth homes and buildings we offer skylight repairs & leak fixes: leak tracing, resealing, actuator repairs and glass replacement. We measure first, specify to the opening and confirm any planning or building-control points before quoting.
Larger gardens in much of the South East mean deeper rear extensions, and deeper rooms need light from above rather than only from the doors. Think of skylight repairs & leak fixes for leaks, condensation, misted units and failed actuators.
Portsmouth is around 25 km from Southampton, and we survey and fit throughout that part of Hampshire, including the PO1 district.
Specification options
- Upstand and membrane repairs
- Actuator, motor and control repairs
- Planned maintenance visits
- Glass unit replacement
- Condensation diagnosis
- Seal and flashing repairs
- Honest repair-or-replace advice
Things we check at survey
- Water tracking can show up far from the source
- Parts availability varies with the age of the unit
Planning, building control and 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. 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. 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.
Our planning guide covers each nation in more detail.
Skylight repairs & leak fixes prices 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 |
|---|---|---|
| Glass unit or actuator replacement | £595 – £1,555 | £495 – £1,295 |
| Upstand or membrane repair Typical | £355 – £955 | £295 – £795 |
| Diagnostic visit and reseal | £235 – £475 | £195 – £395 |
How the job runs
- Send the details. Postcode, rough size and a photo of the roof and room.
- Survey. We measure the opening, check the roof build-up and agree the options.
- Agree the quote. You approve the specification and price before anything is ordered.
- Installation day. Usually one day into a prepared opening, longer for new openings.
Skylight repairs & leak fixes near Portsmouth
Related work in Portsmouth
Skylight repairs & leak fixes in Portsmouth: questions
Can you fix a misted rooflight?
A misted unit means the glass seal has failed. The sealed unit, or the whole rooflight, needs replacing.
Do you repair roof windows too?
Yes — flashings, seals, hinges and glass on pitched roof windows.
Why is my skylight leaking?
Common causes are a failed seal, a membrane that has split or lifted at the upstand, a low upstand, blocked drainage or condensation mistaken for a leak.
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.
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.
