Spiral Staircases
Sculptural spiral staircases in steel and timber — compact in footprint, precise in fabrication, and strong enough to anchor the interior around them.
Sterianos engineers bespoke spiral staircases for Cape Town's finest residential and commercial projects — from architect-led new builds to meticulous private renovations across the Atlantic Seaboard, Constantia and the Southern Suburbs. Each commission is resolved to precise specification, with structural integrity and architectural resolution at its core.
Operating from its Cape Town workshop since 1994, the studio fabricates in mild steel, stainless steel, timber and glass. Complex and high-specification commissions are a particular speciality — handled and personally supervised by the owners from initial brief through to final installation.
Material options include structural steel, timber details, frameless or framed glass systems, stainless-steel fittings and bespoke protective finishes selected for the specific setting and exposure.
Priority service areas
Bespoke commissions across Cape Town's finest residential areas
Sea Point
Custom architectural metalwork for Sea Point apartments, penthouses and houses, with careful attention to coastal exposure, compact sites and refined contemporary detailing.
Constantia
Bespoke gates, staircases, balustrades, pergolas and mixed-material features for established Constantia homes, luxury renovations and architect-designed new builds.
Bishopscourt
Personally supervised custom metalwork for Bishopscourt estates, including discreet security gates, architectural staircases, balustrades and one-off steel, timber and glass features.
Camps Bay
Custom staircases, balustrades, gates, decks and exterior structures for Camps Bay villas and renovations, designed around views, coastal conditions and indoor-outdoor living.
Newlands
Bespoke staircases, gates, balustrades and architectural features for Newlands homes — a neighbourhood that combines mature residential character with a growing appetite for considered contemporary design.
Hout Bay
Custom gates, staircases, balustrades, decks and exterior structures for Hout Bay homes — from harbour-adjacent cottages to large valley estates and ocean-facing hilltop villas.
Fresnaye
Bespoke staircases, gates, balustrades and architectural metalwork for Fresnaye's elevated homes — a tightly held neighbourhood of large properties with panoramic views and a strong tradition of architect-led renovation.
Llandudno
Custom metalwork for one of Cape Town's most exclusive coastal enclaves — where ocean-facing homes demand considered outdoor structures, corrosion-conscious detailing and precise architectural resolution.
Atlantic Seaboard & City Bowl
Bespoke gates, staircases, balustrades and architectural features for luxury homes, apartments and high-end renovations along the Atlantic Seaboard and in the City Bowl.
Upper Southern Suburbs
Custom metalwork for established homes, luxury renovations, new builds and security upgrades across Cape Town's upper Southern Suburbs.
Southern Peninsula & Coastal Homes
Durable, considered metalwork for coastal homes, lifestyle properties and hospitality spaces throughout the Southern Peninsula.
What this category includes
Spiral staircases in mild steel or stainless steel
Wooden or metal tread options selected to suit the interior or exterior setting
Custom balustrades and handrails developed as part of the staircase
Compact solutions for homes, lofts, courtyards and difficult access conditions
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