How we approach conservation rooflights in Bow
Thinking about conservation rooflights in Bow? The short answer: slim, low-profile steel-look rooflights for period and listed roofs. The longer answer depends on your roof, which is why we survey before we price.
Many London roofs are reached only through the house or over neighbouring property, so lifting heavy glass is planned at survey rather than on the day. Typical uses for conservation rooflights include slate and plain-tile roofs where a quiet roofline matters.
Neighbouring towns include Stratford (1 km) and Hackney (3 km). We offer a survey date when we reply to your enquiry.
Specification options
- Toughened or laminated double glazing
- Flashings for slate or plain tile
- Blinds
- Manual or electric opening
- Steel or aluminium frames
- Suits slate and plain-tile roofs
- Double glazed behind a period look
What to check first
- Conservation officers may specify size and position
- Lead or matching flashings may be required
Planning and building rules for Bow
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. 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.
Guide prices for Bow
The ranges below are typical for straightforward jobs; your fixed price follows a survey of your roof.
| 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 |
How the job runs
- Get in touch. Use the form, WhatsApp or the guide-price tool with your Bow address.
- Free site visit. For new installs we survey free, measure and confirm the roof detail.
- 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.
Neighbouring towns
More we do in Bow
Common questions
Do they suit slate roofs?
Yes — flashings are made for slates and for plain tiles.
Can you copy an original rooflight?
Some makers produce bespoke sizes to match an existing opening. We can survey and quote.
Are conservation rooflights double glazed?
Most modern ones are, with slim units behind the traditional frame.
Is the survey in Bow free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
Do I need to be at home for the survey in Bow?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
