Glass Staircases in Sheffield: Safety and Costs Explained

What counts as a glass staircase?

Most of the projects described as glass staircases are really timber or steel stairs with glass balustrades in place of spindles. The treads stay solid and the glass does the guarding. This is the most affordable route and suits the widest range of houses.

A true glass staircase has glass treads as well, carried on a steel stringer or central spine. It is a structural piece of engineering, and it is priced accordingly.

• Post and clamp balustrade: glass panels held between slim stainless or powder coated posts
• Frameless balustrade: glass fixed into a floor channel or with side mounted bolts, with no posts
• Glass treads: thick laminated panels on a fabricated steel structure

Are glass staircases safe?

Yes, when they are designed and fitted properly. The glass is nothing like window glass. Balustrade panels are toughened, and on frameless systems they are toughened and laminated, typically 17.5mm or 21.5mm thick. If one layer breaks, the interlayer holds the panel in place rather than leaving an open drop.

Glass treads are usually three layers laminated together, somewhere between 25mm and 33mm thick. They are designed so that the tread still carries load if one layer fails. An anti-slip finish is essential, usually an etched or fritted pattern across the surface, because smooth glass is slippery in socks or with wet shoes.

The usual building regulations apply to stairs in a house. Guarding must be at least 900mm high on flights and landings, no gap should allow a 100mm sphere to pass through, and the pitch must not exceed 42 degrees. Frameless glass normally needs either a handrail or laminated glass that stays in place if a panel breaks. A new or replacement staircase is building control work, so expect Sheffield City Council building control or an approved inspector to be involved.

How much does it cost in Sheffield?

Every staircase is measured and made to fit, so these are realistic ranges rather than fixed prices. They assume a typical single flight in a house in Sheffield or the surrounding area.

The main things that move the price are the length of the run, the number of turns and landings, glass thickness, whether you choose low iron glass for a clearer look without the green tint, and how easy it is to get large panels into the house.

• Glass balustrade fitted to an existing staircase and landing: roughly £2,000 to £5,000
• Frameless systems: often £400 to £700 or more per linear metre, compared with about £250 to £500 for post and clamp
• New staircase with timber treads and glass balustrade: commonly £6,000 to £15,000
• Glass treads on a steel structure: usually £15,000 upwards, and well beyond that for complex designs

What suits Sheffield homes?

Sheffield's housing has a big say in what works. The terraces in Walkley, Crookes and Hillsborough often have steep, narrow stairs enclosed between walls. Here a glass balustrade on the landing or a glazed panel in place of a stud wall can bring in a lot of light without rebuilding the flight. Bear in mind that if you replace the staircase altogether, the new one has to meet current rules on pitch, which can take up more floor space than the original.

Larger stone houses in Dore, Totley and Fulwood, and extensions with open plan hallways, have the room for a feature staircase with frameless glass. Converted buildings and apartments around Kelham Island suit steel and glass well. If your home is listed or in a conservation area such as Nether Edge or Broomhill, check with the council before changing an original staircase.

Access matters too. Glass panels are heavy and cannot be trimmed on site, so tight hallways and the stepped approaches common on Sheffield's hillsides need thinking about at survey stage.

Living with glass day to day

Glass shows fingerprints, particularly at child height, so expect to wipe it down every week or two with a microfibre cloth and ordinary glass cleaner. Treads can pick up fine scratches from grit over the years, so a doormat helps. Fixings should be checked occasionally, but there is nothing to paint, stain or revarnish.