How we approach electric opening rooflights in Farnham
Thinking about electric opening rooflights in Farnham? The short answer: hinged rooflights that open on an electric actuator for fresh air. 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. Typical uses for electric opening rooflights include rooms that overheat in summer or steam up when cooking.
We work across Surrey, including Farnham, and in neighbouring towns such as Aldershot and Fleet. Access, parking and how the glass reaches the roof are all checked at the survey.
Specification options
- Integral blind
- Electric actuator with wall switch or remote
- Smart-home or app control (manufacturer dependent)
- Frame colour to match your doors
- Double or triple glazing
- Rain sensor closes the lid automatically
- Same slim look as a fixed unit when closed
What to check first
- Lid opening height is limited by the actuator stroke, typically a few hundred millimetres
- Opening area may count toward purge ventilation for the room
Planning and building rules for Farnham
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.
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. 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.
Electric opening rooflights prices in Farnham
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 with rain sensor and blind | £4,195 – £5,995 | £3,495 – £4,995 |
| Mid-size electric with rain sensor Typical | £2,995 – £4,195 | £2,495 – £3,495 |
| Small manual or electric opening unit | £2,395 – £3,115 | £1,995 – £2,595 |
What happens next
- Tell us what you have. Send the GU9 postcode, a rough size and a couple of photos.
- Measure and check. A surveyor visits Farnham, measures and checks structure and access.
- 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.
Electric opening rooflights near Farnham
Other services in Farnham
Questions about electric opening rooflights in Farnham
What happens if it rains while it is open?
With a rain sensor fitted, the actuator closes the lid automatically when the sensor detects water. Without one, the lid stays where you left it, which is why we recommend the sensor on any unit over a kitchen or bedroom.
Can it open in a power cut?
Most electric units stay where they are during a power cut. Some manufacturers offer a manual override or battery backup — we will tell you which option the chosen model has.
Is it noisy?
Actuators run for a few seconds and are about as loud as an electric blind. Once closed, an opening unit is as quiet as a fixed one.
How do I book a survey in Farnham?
Send your postcode and, if you can, a photo of the roof and the room. We offer a survey date when we reply.
Will I need planning permission in Farnham?
Most rooflights on English houses do not need planning permission, provided they keep within 150 mm of the roof surface and below the ridge line.
