How we approach skylight replacement in Portslade
We handle skylight replacement across East Sussex, including Portslade. In short: replacing tired domes and failed glass with a modern rooflight. The survey checks structure, weathering and orientation, so the quote reflects your actual roof.
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. Skylight replacement suits older extensions due a modern rooflight.
Neighbouring towns include Hove (4 km) and Brighton (6 km). We offer a survey date when we reply to your enquiry.
What you can choose
- Dome to flat glass upgrade
- Fixed to electric opening
- Misted glass unit replacement only
- Like-for-like size replacement
- Upstand rebuild and insulation
- Better thermal performance
- Option to add opening and rain sensor
Before you order: points to check
- Old glass and domes are disposed of responsibly
- A replacement is a chance to meet current thermal standards
Do you need permission in Portslade?
English householder permitted development (Class C) normally covers rooflights that stand no more than 0.15 m proud of the roof plane and stay below the highest part of the roof. 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.
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.
See our building regulations guide for U-values, glazing limits and self-certification.
Guide prices for Portslade
These are typical supply-and-fit ranges. For an address in Portslade, 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 |
|---|---|---|
| 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 Portslade address.
- Measure and check. A surveyor visits Portslade, measures and checks structure and access.
- 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 Portslade
More we do in Portslade
Questions about skylight replacement in Portslade
What do you do with the old unit?
We remove it from site and recycle what can be recycled.
How long does a replacement take?
Usually a day for a standard rooflight on a sound upstand.
Can I go bigger when replacing?
Possibly. Enlarging the opening means trimming joists, so we check the structure first.
Do I need to be at home for the survey in Portslade?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
How do I book a survey in Portslade?
Send your postcode and, if you can, a photo of the roof and the room. We offer a survey date when we reply.
