External steel staircase repaired on site in London
Steel Staircase Repairs London

Steel Staircase Repairs London

External staircase repairs across London — worn treads, corroded stringers, loose fixings and failed welds put right on site by our own welding and installation teams.

Mobile 07958 638 849 · Office 01582 611648 · info@prontowelding.co.uk

What we fix

Typical steel staircase repairs

We attend the property, assess the problem and carry out the repair work on site wherever the structure allows.

  • Tread replacement in open-grid, chequer plate or solid steel
  • Nosings, anti-slip inserts and worn edges
  • Stringer repairs where section has been lost at tread welds
  • Half-landings, landing frames and support brackets
  • Base plates and foot fixings corroded into concrete or tarmac
  • Newel posts, handrails and intermediate rails
  • Straightening of impact-damaged flights
  • Replacement flights fabricated to survey
Why Pronto Welding is different

A fleet of mobile workshops, not a man with a van.

Pronto Welding Ltd runs 25 fully equipped mobile workshop vans with experienced installation and welding teams — which is why we can survey, fabricate and fit in the same visit.

25 fully equipped mobile workshops

Not one person with a welder in a car boot. Each van is a workshop set up for welding, cutting, drilling, alterations and installation.

Teams already working in London

We run crews across London and the South of England every day, so we can often respond at relatively short notice.

40 employed welders and installers

Directly employed, insured and CHAS accredited — no agency labour and no subcontracted welders turning up in our place.

Surveyed to the millimetre

Older London staircases are rarely square. We measure each tread and going on site so replacement steel drops straight in rather than being forced to fit.

Access stairs kept in service

For retail, industrial and residential blocks we programme staircase repair flight by flight, so tenants and staff keep a usable route while work is underway.

Slip resistance and compliance

Worn treads are the most common cause of accidents on external stairs. We replace with grip-tread grating or apply anti-slip nosings, and bring guarding heights and gap spacings back to a sensible standard.

Protection that lasts

Repairs are needle-gunned or wire-brushed back to sound steel, primed with a zinc-rich primer and top-coated, or hot-dip galvanised where we fabricate new flights off site.

Our own work

How a staircase repair progresses

Existing external steel staircase surveyed before repair in London
Before
Existing flight surveyed and defects marked up
Welder fitting new steel treads to a staircase stringer on site
Repair work
New treads and stringer sections welded in position
Completed steel staircase repair in London, painted and back in service
Finished
Completed stair, painted and back in use

Covering Greater London

Steel staircase repair carried out throughout London, including Camden, Islington, Hackney, Southwark, Lambeth, Wandsworth, Westminster, the City, Croydon, Ealing, Brent, Barnet, Enfield, Newham, Greenwich, Bromley, Richmond, Hounslow and the surrounding M25 corridor. If your property sits inside the M25 — and in most of the South East beyond it — we can get a team to you.

Get a price

Send us the details and a few photographs.

Six boxes, not twenty. The quickest route is photographs of the damage — most repairs can be priced from a picture and a postcode.

Photographs of the damage usually get you a price fastest. You can also send them on WhatsApp.

FAQs

Steel Staircase Repairs London — common questions

Can you replace just a few treads?

Yes. Individual treads are cut out and replaced without dismantling the flight, which is usually the cheapest way to keep an external staircase in service.

Do you fabricate complete replacement staircases?

We do. Flights, landings and balustrades are fabricated to our own site survey and installed by the same teams.

Will the stairs be usable during the work?

In most cases yes — we work in sections and provide temporary handrails or barriers as needed.

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