How we approach skylight replacement in Redruth
Thinking about skylight replacement in Redruth? The short answer: replacing tired domes and failed glass with a modern rooflight. The longer answer depends on your roof, which is why we survey before we price.
Stone cottages, slate roofs and conservation areas are common in the South West, and conservation-profile rooflights keep the roofline quiet. Think of skylight replacement for older extensions due a modern rooflight.
Neighbouring towns include Camborne (6 km) and Truro (13 km). We offer a survey date when we reply to your enquiry.
What you can choose
- Roof window replacement in pitched roofs
- Dome to flat glass upgrade
- Upstand rebuild and insulation
- Like-for-like size replacement
- Fixed to electric opening
- Better thermal performance
- Cures most chronic leaks
Things we check at survey
- Enlarging the opening changes the structure and may need approval
- A replacement is a chance to meet current thermal standards
Planning and building rules for Redruth
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. 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. 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.
See our building regulations guide for U-values, glazing limits and self-certification.
Skylight replacement prices in Redruth
These are typical supply-and-fit ranges. For an address in Redruth, 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 |
From enquiry to finished job
- Tell us what you have. Send the TR15 postcode, a rough size and a couple of photos.
- Measure and check. A surveyor visits Redruth, 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.
Skylight replacement near Redruth
More we do in Redruth
Questions about skylight replacement in Redruth
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 long does a replacement take?
Usually a day for a standard rooflight on a sound upstand.
Will I need planning permission in Redruth?
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.
Is the survey in Redruth free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
