How we approach skylight replacement in Trowbridge
Skylight replacement in Trowbridge means replacing tired domes and failed glass with a modern rooflight. We cover the BA14 district and the rest of Wiltshire, with a survey before any price is fixed.
Barn and chapel conversions in the South West often need bespoke or shaped rooflights to suit the original structure. In Trowbridge, as anywhere, skylight replacement is the usual choice for older extensions due a modern rooflight.
Trowbridge sits about 8 km from Melksham and 12 km from Bath, and we cover the whole BA14 postcode district and the roads in between.
Options we can specify in Trowbridge
- Upstand rebuild and insulation
- Dome to flat glass upgrade
- Misted glass unit replacement only
- Like-for-like size replacement
- Roof window replacement in pitched roofs
- Often reuses the existing opening
- Clearer view and more light
What to check first
- A replacement is a chance to meet current thermal standards
- Enlarging the opening changes the structure and may need approval
Consents for skylight replacement in Trowbridge
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.
For English homes the energy rules ask for rooflights of 2.2 W/m²K or better and roof windows of 1.4 W/m²K (or WER Band B); most modern double glazed units meet both. 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.
Read the planning permission guide before you commit to a design.
Guide prices for Trowbridge
These are typical supply-and-fit ranges. For an address in Trowbridge, 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 |
The process, step by step
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Trowbridge address.
- 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 replacement near Trowbridge
Other services in Trowbridge
Skylight replacement in Trowbridge: questions
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.
Can I go bigger when replacing?
Possibly. Enlarging the opening means trimming joists, so we check the structure first.
How long does a replacement take?
Usually a day for a standard rooflight on a sound upstand.
Is the survey in Trowbridge free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
Do you offer skylight replacement in Trowbridge?
Yes. We carry out skylight replacement in Trowbridge and across Wiltshire. Send your postcode and we will offer a survey date when we reply.
