London · Bespoke Fabrication
Stairforge — London Workshop

BespokeHelicalStaircases.ForgedtoFit.

A helical staircase curves through open space with no central column to interrupt the line — the entire structure is carried by curved outer (and sometimes inner) stringers, engineered to hold their shape under load without a supporting post. It's the more architecturally demanding cousin of the spiral staircase, better suited to grand stairwells and open atriums than tight utility spaces. We fabricate and restore helical staircases in steel, engineered and installed to UK Building Regulations Part K.

STAIRS BUILT TO —EXACT STANDARDS.

Compliance is not an option. It is our foundation.

A helical staircase brings a sculptural line to any stairwell — no central column, just curved outer and inner stringers carrying the entire load through open space. It's the natural choice for grand entrances, feature staircases, and heritage ironwork restorations, where a spiral's tight central-pole radius simply won't do. Every helical staircase we build is engineered around your exact stairwell dimensions, fabricated in steel or restored in original wrought iron at our London workshop, and installed to UK Building Regulations Part K. The result is a curved staircase that reads as architecture first, structure second.

Our process

The staircase journey.

A precise four-step workflow from initial site survey to final installation, ensuring every staircase is forged to fit your space perfectly.

01

Survey

We visit your site to measure dimensions and discuss structural requirements for your staircase.

02

Design

Our team creates detailed CAD drawings and structural calculations compliant with Part K.

03

Fabricate

Your staircase is precision-made in our London workshop by our skilled metal fabricators.

04

Install

Our own installation team fits your staircase on-site, ensuring a perfect, safe finish.

Workshop Process

The steel at work

Every Stairforge staircase is fabricated in our London workshop to exact structural standards.

ornate wrought-iron helical staircase with elaborate scrollwork balustrade beneath a skylight, heritage restoration
Heritage ironwork — scrollwork balustrade beneath an open skylight.
large black steel double-curve helical staircase connecting two levels with vertical bar balustrade
Double-curve steel helix — a striking modern centrepiece.
curved steel stringer sections being lifted into place during on-site installation
On site — curved stringers lifted into position.
bare curved steel helical staircase frame being lifted into position before treads are fitted
Frame first — the curve takes shape before the treads.
raw primed steel helical staircase mid-fabrication, open centre visible
Mid-fabrication — primed steel, open centre visible.
aerial view of a helical staircase descending into a construction pit, second staircase visible in background
From above — the helix descending into the pit.
Bespoke Fabrication

Steel staircases, forged to fit.

Spiral, helical, straight and floating staircases — designed, fabricated, and installed by our own London workshop for architects, contractors, and design-conscious homeowners.

Direct Technical Email
hello@stairforge.co.uk

Send CAD files, architectural plans, or structural queries

Workshop & Service Coverage
London & South East

Hand-crafted in our London workshop by time-served fabricators

Fabrication Standards
Made in London
Part K compliant
Structural calculations included
Fully insured
Discuss your project.
Submit your specifications for a precise, architect-led fabrication estimate.

PDF, DWG, DXF, or imagery up to 10MB

Direct fabricator consultation • Every quote includes Part K compliance & structural assessment

Material EngineeringHelical Series

Helical Staircase Customization & Finishes

Every helical staircase is bespoke engineered in our London workshop. Choose structural steel finishes, tread materials, and balustrade details tailored for your architectural specification.

Raw Mill Steel & Clear Seal
Architectural
Raw Mill Steel & Clear Seal
Industrial aesthetic displaying natural heat markings and hand weld patinas, sealed with anti-corrosive matte lacquer.
Grade S275 / S355 Structural Steel
Architectural Powder Coating
Popular
Architectural Powder Coating
Durable polyester powder finish available in full RAL palette, with fine texture or smooth matte sheen options.
RAL 9005 Fine Texture, RAL 7016, Custom RAL
Chemical Patina & Liquid Metal
Premium
Chemical Patina & Liquid Metal
Bespoke hand-applied bronze, brass, or blackened steel chemical finishes creating rich textural depth.
Bespoke Hand-Applied Chemical Wax
London Workshop Guarantee

Need Bespoke Specifications or CAD Models?

Our fabricators collaborate directly with architects and structural engineers. We provide comprehensive structural calculations and 3D CAD models for full Part K compliance approval before starting fabrication.

UK Building Regs

Part K Compliant

Engineering

Calculations Included

Handrail Options

Steel or Recessed LED

Fabrication

Handcrafted in London Workshop