Hinged roof access rooflights in Horsham: what is involved?
Thinking about hinged roof access rooflights in Horsham? The short answer: hinged glazed hatches over a stair or ladder for roof terrace access. The longer answer depends on your roof, which is why we survey before we price.
Many South East homes have been extended more than once, and an old dome over an earlier extension is often due for replacement. In Horsham, as anywhere, hinged roof access rooflights are the usual choice for occasional roof access that also lights the stair.
From Horsham to Crawley, Horley and Haywards Heath, the same survey-first process applies: measure, specify, fix the price, then fit.
Options we can specify in Horsham
- Hinge side to suit the stair
- Double or triple glazing
- Rain sensor on electric versions
- Manual gas-strut or electric opening
- Grab rail or handle inside
- Roof access and daylight in one unit
- Lower cost than a sliding box unit
What to check first
- The lid must open clear of parapets and balustrades
- Stair headroom and the clear opening must meet Building Regulations
Consents for hinged roof access rooflights in Horsham
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. 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.
Our planning guide covers each nation in more detail.
Hinged roof access rooflights prices in Horsham
Prices below are shown including and excluding VAT. In Horsham, as elsewhere, making good inside and access equipment are the main variables.
| Option | Guide price inc VAT | Ex VAT |
|---|---|---|
| Large electric access hatch | £5,395 – £7,795 | £4,495 – £6,495 |
| Gas-strut hatch with grab handle Typical | £3,955 – £5,395 | £3,295 – £4,495 |
| Compact manual hatch | £3,595 – £4,195 | £2,995 – £3,495 |
The process, step by step
- Send the details. Postcode, rough size and a photo of the roof and room.
- Survey. We measure the opening, check the roof build-up and agree the options.
- Written price. You receive a fixed price listing the unit, the work and the lead time.
- Fitting and handover. We install, clean down and leave product and warranty documents.
Nearby towns
Other services in Horsham
Common questions
Is it secure?
Units lock from inside. As with any rooftop door, keep it locked when the house is empty.
How big does an access hatch need to be?
Big enough to climb through comfortably for the stair or ladder you have. For a stair, we size it to the stair width and the headroom; for occasional plant access a smaller hatch can work.
Can it replace an old loft hatch?
Where there is a flat roof above, yes. On a pitched roof, an access roof window is the equivalent.
Can you work alongside my builder in Horsham?
Yes. On new extensions we fit once the opening and upstand are ready and coordinate dates with your builder.
Will I need planning permission in Horsham?
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.
