Skylight replacement for Thatcham: the essentials
Thinking about skylight replacement in Thatcham? 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.
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 replacement for older extensions due a modern rooflight.
From Thatcham to Newbury, Basingstoke and Reading, the same survey-first process applies: measure, specify, fix the price, then fit.
What you can choose
- Dome to flat glass upgrade
- Upstand rebuild and insulation
- Roof window replacement in pitched roofs
- Fixed to electric opening
- Like-for-like size replacement
- Better thermal performance
- Clearer view and more light
Before you order: points to check
- A replacement is a chance to meet current thermal standards
- Upstand and roof condition decide the scope
Do you need permission in Thatcham?
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.
Our planning guide covers each nation in more detail.
What does skylight replacement cost in Thatcham?
These are typical supply-and-fit ranges. For an address in Thatcham, 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 RG18 postcode, a rough size and a couple of photos.
- Survey. We measure the opening, check the roof build-up and agree the options.
- Fixed quote. Product, work and price in writing — nothing is ordered until you agree.
- Fit and make good. We fit, seal, test and finish the reveal, then hand over the paperwork.
Skylight replacement near Thatcham
More we do in Thatcham
Questions about skylight replacement in Thatcham
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.
How long does a replacement take?
Usually a day for a standard rooflight on a sound upstand.
Will it mess up my ceiling?
We protect the room and make good the reveal. Minor decoration may be needed afterwards.
Is the survey in Thatcham free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
Can you work alongside my builder in Thatcham?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
