What does skylight replacement in Melksham involve?
Skylight replacement in Melksham means replacing tired domes and failed glass with a modern rooflight. We cover the SN12 district and the rest of Wiltshire, with a survey before any price is fixed.
Many South West towns mix Georgian and Victorian terraces with modern estates, so the right product differs street by street. Think of skylight replacement for older extensions due a modern rooflight.
We work across Wiltshire, including Melksham, and in neighbouring towns such as Trowbridge and Chippenham. Access, parking and how the glass reaches the roof are all checked at the survey.
Options we can specify in Melksham
- Dome to flat glass upgrade
- Like-for-like size replacement
- Upstand rebuild and insulation
- Fixed to electric opening
- Misted glass unit replacement only
- Cures most chronic leaks
- Often reuses the existing opening
What to check first
- Enlarging the opening changes the structure and may need approval
- A replacement is a chance to meet current thermal standards
Planning, building control and Melksham
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. 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.
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. 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 Melksham
The ranges below are typical for straightforward jobs; your fixed price follows a survey of your roof.
| 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 |
What happens next
- Tell us what you have. Send the SN12 postcode, a rough size and a couple of photos.
- Free site visit. For new installs we survey free, measure and confirm the roof detail.
- Written price. You receive a fixed price listing the unit, the work and the lead time.
- Installation day. Usually one day into a prepared opening, longer for new openings.
Nearby towns
Related work in Melksham
Skylight replacement in Melksham: questions
Will it mess up my ceiling?
We protect the room and make good the reveal. Minor decoration may be needed afterwards.
How long does a replacement take?
Usually a day for a standard rooflight on a sound upstand.
Can you replace only the misted glass?
Sometimes, if the frame is sound and the maker supplies replacement units. Often a complete new rooflight costs little more and performs better.
Do I need to be at home for the survey in Melksham?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
Will I need planning permission in Melksham?
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.
