What do conservation rooflights involve?
Our conservation rooflights service in Lancashire covers slim, low-profile steel-look rooflights for period and listed roofs. We survey every job before fixing the price.
Stone and brick terraces are typical across the North West, and roof windows in rear slopes are a common way to light attic rooms. Rear kitchen extensions on North West semis often have small domes from decades ago that leak or have yellowed.
Towns in Lancashire
Specification options in Lancashire
- Toughened or laminated double glazing
- Blinds
- Flashings for slate or plain tile
- Central vertical glazing bar
- Steel or aluminium frames
- Often preferred by conservation officers
- Steel or aluminium frame in black or grey
Planning and building rules in England
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. 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.
Under Approved Document L, a rooflight added to an English home must achieve at least 2.2 W/m²K (horizontal plane), and a roof window 1.4 W/m²K or Window Energy Rating Band B. 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.
Conservation rooflights prices in Lancashire
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
- Tell us about the roof. Send the postcode, rough sizes and a photo or two through the form, WhatsApp or the guide-price tool.
- Free survey. For new installations a surveyor measures the opening, checks the roof build-up and talks through glass and options.
- Fixed written quote. You get the product, the work and the price in writing. Nothing is ordered or paid for until you agree.
- Fitting and handover. We fit, seal and make good, then hand over product data, warranties and any certificate paperwork.
Conservation rooflights in nearby areas
Common questions
Are conservation rooflights double glazed?
Most modern ones are, with slim units behind the traditional frame.
Will the council accept it?
We cannot promise an outcome, but a slim conservation profile fitted low in the roof is the type many conservation officers ask for.
Can you copy an original rooflight?
Some makers produce bespoke sizes to match an existing opening. We can survey and quote.
Can they open?
Yes, most are top-hung or side-hung for ventilation and cleaning, with manual or electric operation.
Do I need to be at home for the survey in Lancashire?
Yes — someone needs to let us into the room below and, where possible, show us how the roof is reached.
