Hailsham · East Sussex
Glass Roofs in Hailsham
Homeowners and architects in Hailsham can get a written glass roof quote that fixes the price for the glass, coatings, supports and installation shown.
- BN27
- Guide from £1,095 per m²
Glass roof extension for homes and businesses in Hailsham
In England, Approved Document L limits how much of an extension can be glazed when the simple standard route is used. Large glass roofs often go beyond that limit, so energy calculations are usually needed to show the extension still complies, and building control checks them.
Overhead glass in a glass roof is generally specified with a laminated inner pane. If the inner glass breaks, the interlayer holds the fragments together instead of letting them fall into the room. BS 5516-2 is the British Standard code of practice for sloping and overhead glazing.
A new glass roof or walk-on panel is building work that normally needs building regulations approval through building control, covering structure, energy performance and, close to a boundary, fire performance. Planning permission may also be needed depending on the extension and the property, so check with the council.
Fixed frameless rooflights sit on a flat roof upstand with the glass edge overhanging the kerb, so from inside you see only sky and plaster. The upstand must be level, insulated and weathered into the roof covering, and the roof needs a fall so water drains off the glass.
Included as standard
- Coordination with engineers or builders where required
- Lifting, positioning and fixing of every glass unit
- Weather sealing of joints, edges and upstands
- Site survey and structural assessment of supports

Working in Hailsham
- Postcodes covered
- BN27 and the surrounding area, including Eastbourne, Seaford and Bexhill-on-Sea
- Coast
- Hailsham sits roughly 8 km from the nearest coastline, close enough that exposure on open or high ground is worth considering. Glass roofs near the coast collect salt film that self-cleaning coatings may not fully remove, so occasional rinsing helps. Exposed sites face higher wind uplift, which affects glass thickness and fixings, and any metal supports need coatings or grades suited to salt air.
- Daylight and sun
- In Hailsham the midwinter sun reaches about 16° above the horizon at noon, with roughly 7.7 hours of daylight, rising to about 63° and 16.3 hours in midsummer. Overhead glass admits far more daylight than vertical glazing, especially in summer when the sun is high. South-facing glass roofs usually need solar-control coatings or fritting, while north-facing roofs can use clearer low-E glass to maximise winter light.
- Access and setting
- Rural sites may have long or narrow access tracks that limit crane positions and panel sizes, so access is surveyed early. Exposed locations face higher wind and snow loads, and leaves and debris from nearby trees mean gutters need regular clearing.
- Rules in England
- Approved Document K requires safety glass in critical locations in England: glazing in doors and in side panels within 300 mm of a door, up to 1500 mm above floor level, and any glazing in walls or partitions up to 800 mm above floor level.
Guide prices in Hailsham
| Typical job | Guide price inc VAT |
|---|---|
| Frameless glass roof, per m² | £1,095 – £1,795 |
| Walk-on glass panel, per m² | £1,495 – £2,395 |
Get a guide price for your size
Approved Document L sets the minimum energy performance for replacement windows and doors in existing homes in England: a U-value of 1.4 W/m²K, or Window Energy Rating band B for windows; doors can instead meet a Door Set Energy Rating (band B, or band C for doors more than 60% glazed); rooflights need 2.2 W/m²K.
Specification choices
Fixed frameless rooflight
A flat glass unit bonded to a minimal edge frame on an upstand, giving an unbroken view of the sky from inside.
Side-return glass roof
Large glass units spanning from the house wall to the boundary, supported on glass beams or slim steel, for extended kitchens.
Sliding access rooflight
A glazed hatch that slides or hinges open for access to a roof terrace, with weather seals and secure locking.
Glass Roofs in Hailsham: questions
What guarantee comes with a glass roof?
Manufacturer guarantees apply to the glass units, coatings and any framing or fixings, and the terms are confirmed in writing. Supports built by others are covered by their own builder's terms. Guarantee terms for our installation are set out in writing with your quote, so you know what is covered and who is responsible before work begins.
Does a glass roof need building regulations approval?
Yes. A new glass roof, frameless rooflight or walk-on panel is building work that normally needs approval through building control, covering structure, energy performance and fire performance near a boundary. Highly glazed extensions often need energy calculations to show compliance. The rules differ between England, Wales, Scotland and Northern Ireland, and we explain the route for your project.
How do you stop a glass roof leaking?
A glass roof stays watertight through a fall that lets water run off, weather seals and structural silicone joints between panes, well-detailed flashings at walls and upstands, and clear gutters or outlets. Most leaks start at flashings or blocked drainage rather than the glass. Annual checks of joints and outlets prevent most problems.
What is the difference between a glass roof and a roof lantern?
A glass roof replaces most or all of a roof with large structural glass units on minimal supports, giving a near frameless view of the sky. A roof lantern is a framed, pitched glazed structure that sits on an upstand within a solid flat roof. Glass roofs suit side returns and link extensions; lanterns suit openings in flat roofs.
Do you cover Hailsham for glass roofs?
Yes. We can quote for glass roofs across Hailsham and the surrounding East Sussex area, including postcode districts BN27, and nearby Eastbourne, Seaford and Bexhill-on-Sea. Start with your postcode on the quote form and a glazier will arrange a free survey before giving you a written quote.
Get a written quote in Hailsham
Free survey for new glazing, clear guide prices and one point of contact for every glazing job.