Steel StaircasesInternal, External & Industrial— Designed and Installed in Swindon.
Get a staircase you can trust with a suitcase, a pram or a full-grown adult in a hurry — designed to your opening, fabricated in line with BS EN 1090, installed square and level, with a guarantee on fabrication and installation and consistent 5-star reviews on this exact service.
5-star reviewed for external stairs · BS EN 1090 · Building Regs compliant · Free site survey.
What steel staircases & external stairs actually is — and when to commission it.
What it is
Steel staircases are made from a welded steel frame — stringers, treads, risers and landings — finished with a handrail and balustrade to code. They can be raw industrial, powder-coated architectural, or clad in timber and stone.
Who it's for
Homeowners in Swindon adding an annexe, garden studio, loft or basement; landlords who need a compliant external escape for a first-floor flat; and commercial clients needing external plant-room stairs, mezzanine access or industrial stairs.
When it's needed
When a timber staircase won't span the opening, won't carry the load, or won't survive outside; when the design calls for a modern architectural look; and any time an external staircase is needed as a means of access or escape.
Why professional help matters
A staircase is life-safety kit. Rise and going must be consistent, the handrail must be at the right height, the balustrade must resist the required load, and the whole frame must be tied back to the building properly. Getting any of those wrong is the difference between passing Building Control and being told to take it out.
The four failures we see when steel staircases & external stairs is done cheaply.
Uneven rise and going
A single tread that's 10mm out of pattern is the tread people trip on. Timber-and-carpenter builds outdoors move with the weather; the pattern drifts and the stair becomes unsafe.
External timber that rots in five winters
External timber stairs — even treated — swell, split and rot at the joints. Steel, correctly treated and finished, doesn't.
Non-compliant handrails and balustrades
The wrong handrail height, the wrong baluster spacing, or a rail that a small child can climb — these fail Building Control and, more importantly, put people at risk.
Wobble at the top and bottom
A staircase that isn't tied properly to the structure at head and foot moves under load. It gets worse over time — and by the time you notice it, it's structural.
From first call to signed-off installation.
- Step 1
Free site survey
We measure the opening, floor-to-floor height, headroom and landing positions on site. We confirm rise, going and headroom against Building Regs.
- Step 2
Design & written quote
You get a drawing, a specification (materials, finish, balustrade type, handrail) and a written quote with the guarantee spelled out.
- Step 3
Fabrication in the workshop
Stringers cut and welded, treads fitted, handrail and balustrade fabricated, welds ground back, finish applied. In line with BS EN 1090.
- Step 4
Installation on site
Delivered and installed by the same team who quoted the job. Tied properly to the structure, packed level, and finished on site.
- Step 5
Sign-off & written guarantee
We walk the stair with you, check the finish, and hand over your written guarantee on fabrication and installation.
Steel staircases & external stairs we've fabricated and installed.
What you actually get when you commission this from SRN.
Compliant rise, going & handrails
Designed to current Building Regs so it passes inspection first time.
External-grade finish
Properly primed and finished external stairs shrug off British weather for decades.
Solid underfoot
No creak, no flex, no bounce — welded steel doesn't move.
Modern or traditional aesthetic
Sleek architectural stringers, industrial straight-runs, or traditional balustered — you choose.
Longer service life than timber
Steel outlasts external timber by decades, especially at coastal or exposed sites.
5-star reviewed on this exact service
Google reviews specifically call out our external staircase work as sturdy, professional and well-made.
Materials, methods, variations — the full picture.
This is the technical detail that separates a fabricator from a supplier. Read it, or skim the headings — either way, it's what you're paying for.
Types of staircase we build
Straight-flight external stairs, quarter-turn and half-turn returns with intermediate landings, spiral and helical stairs (subject to space), industrial straight-run access stairs, mezzanine stairs, plant-room and roof-access stairs, fire escapes, and internal architectural stairs with timber, stone or open-riser treads.
Treads & landings
Options include chequer plate, open bar-grating, solid steel plate, open pan treads for timber or stone inserts, and cast-in or bolt-down landings. Tread choice affects grip, drainage, look and cost — we specify to suit the location.
Handrails, balustrades & compliance
Handrail heights and balustrade infills are designed to comply with Approved Document K of the Building Regulations. Infill options include vertical steel balusters, horizontal bars where permitted, stainless-steel wire, or steel-framed glass panels via a trade partner.
Finishes
The right finish for external stairs depends on the environment and the maintenance appetite — we specify an appropriate primer and top-coat system, or a galvanised base, as part of your written quote.
Residential vs commercial
Residential external stairs are usually one flight down to a garden or up to an annexe — priority is fit, look and safety. Commercial and industrial stairs are typically about compliance, load rating and access — we build to BS EN 1090 either way. Regularly installed across Swindon, Wiltshire, Oxfordshire and Somerset.
Straight answers to the questions we're asked most.
How much does a steel staircase cost?+
A straight external steel staircase for a domestic annexe typically starts in the low thousands, including design, fabrication, finish, delivery and installation. Larger commercial stairs, spirals and stairs with landings cost more. Every quote is free and written.
How long does a steel staircase take to install?+
Once fabricated, most single-flight staircases install in a day. Fabrication lead time is usually 3–5 weeks from sign-off.
Are your steel staircases Building Regs compliant?+
Yes — designed to Approved Document K for rise, going, headroom, handrail height and balustrade infill, and fabricated in line with BS EN 1090.
Do you install internal steel stairs as well as external?+
Yes — both. Internal architectural stairs are typically built with timber or stone treads on a steel frame.
How long does a steel staircase last outside?+
Correctly specified and finished external steel stairs last decades. Regular light maintenance of the topcoat keeps them looking new.
Do you offer a guarantee?+
Yes — we guarantee both fabrication and installation. Length and coverage is confirmed in the written quote.
Can you fit a stair in a tight or unusual opening?+
Usually, yes — that's the point of bespoke fabrication. We measure on site and design to what's actually there.
Do you install steel stairs in Swindon and surrounding areas?+
Yes — Swindon is home. We install across Wiltshire, Oxfordshire, Somerset, Berkshire, Gloucestershire and Bristol.
Get a written quote for your steel staircases & external stairs — free site survey included.
One phone call, one honest survey, one written price. Experienced trade fabricators, work aligned with BS EN 1090, £2 million public liability, and a written guarantee on fabrication and installation.
- Experienced trade fabricators
- In line with BS EN 1090
- Building Regulations compliant
- £2m public liability insurance
- CSCS-carded site team
- Written guarantee on fabrication & install