Conservation rooflights for Hammersmith: the essentials
We handle conservation rooflights across Greater London, including Hammersmith. In short: slim, low-profile steel-look rooflights for period and listed roofs. The survey checks structure, weathering and orientation, so the quote reflects your actual roof.
Mansard and loft conversions are common across London, and roof windows are often set out alongside dormers on the rear slope. Conservation rooflights suit slate and plain-tile roofs where a quiet roofline matters.
We work across Greater London, including Hammersmith, and in neighbouring towns such as Shepherds Bush and Chiswick. Access, parking and how the glass reaches the roof are all checked at the survey.
Options we can specify in Hammersmith
- Blinds
- Manual or electric opening
- Central vertical glazing bar
- Toughened or laminated double glazing
- Steel or aluminium frames
- Suits slate and plain-tile roofs
- Optional central glazing bar
What to check first
- Conservation officers may specify size and position
- Projection above the roof line is limited — usually as flush as possible
Do you need permission in Hammersmith?
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.
Building Regulations Approved Document L sets a limiting U-value of 2.2 W/m²K for new or replacement rooflights in existing homes, measured in the horizontal plane; roof windows need 1.4 W/m²K or a Band B energy rating. 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.
Guide prices for Hammersmith
These are typical supply-and-fit ranges. For an address in Hammersmith, 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 |
|---|---|---|
| Large or electric conservation rooflight | £2,755 – £4,195 | £2,295 – £3,495 |
| Standard conservation rooflight Typical | £2,035 – £2,755 | £1,695 – £2,295 |
| Small conservation rooflight | £1,795 – £2,155 | £1,495 – £1,795 |
What happens next
- Tell us what you have. Send the W6 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.
Nearby towns
Other services in Hammersmith
Conservation rooflights in Hammersmith: questions
Are conservation rooflights double glazed?
Most modern ones are, with slim units behind the traditional frame.
Do I need consent for a conservation rooflight?
On a listed building you need listed building consent. In a conservation area, check with the council — many areas have Article 4 directions affecting roof alterations.
Can they open?
Yes, most are top-hung or side-hung for ventilation and cleaning, with manual or electric operation.
Can you work alongside my builder in Hammersmith?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
Do you fit conservation rooflights in Hammersmith?
Yes. We survey and fit conservation rooflights in Hammersmith and across Greater London. Send your postcode and we will offer a survey date when we reply.
