Conservation rooflights in Carshalton: what is involved?
Our conservation rooflights service in Carshalton covers slim, low-profile steel-look rooflights for period and listed roofs. Every job starts with a survey of the opening, the roof covering and the room below, and a fixed written 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. Think of conservation rooflights for period, listed and conservation-area roofs.
From Carshalton to Wallington, Sutton and Mitcham, the same survey-first process applies: measure, specify, fix the price, then fit.
What you can choose
- Flashings for slate or plain tile
- Toughened or laminated double glazing
- Manual or electric opening
- Steel or aluminium frames
- Blinds
- Traditional slim profile, sits low in the roof
- Suits slate and plain-tile roofs
Things we check at survey
- Projection above the roof line is limited — usually as flush as possible
- Conservation officers may specify size and position
Planning, building control and Carshalton
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. Listed buildings need listed building consent, flats have no householder permitted development rights, and an Article 4 direction can remove the rights in some conservation areas.
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.
Our planning guide covers each nation in more detail.
Conservation rooflights prices in Carshalton
Guide prices for conservation rooflights in Carshalton are the same as anywhere we work — what changes the price is the job: access, structure, scaffold and finishing.
| 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 |
From enquiry to finished job
- Send the details. Postcode, rough size and a photo of the roof and room.
- Measure and check. A surveyor visits Carshalton, measures and checks structure and access.
- Written price. You receive a fixed price listing the unit, the work and the lead time.
- Fit and make good. We fit, seal, test and finish the reveal, then hand over the paperwork.
Nearby towns
More we do in Carshalton
Questions about conservation rooflights in Carshalton
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.
Are conservation rooflights double glazed?
Most modern ones are, with slim units behind the traditional frame.
Do they suit slate roofs?
Yes — flashings are made for slates and for plain tiles.
Will I need planning permission in Carshalton?
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.
Is the survey in Carshalton free?
Yes for new installations. Repair visits are charged, and we tell you the price before we book.
