Built
by hand,
every day.
Prostep is a South African precast concrete manufacturer specialising in staircases and precast lintels. A father-and-son team — Carinus and Petrus du Buson — designing, drawing, casting and installing from our Witbank yard since 1996, for everything from single homes to multi-block developments.
Carinus & Petrus
du Buson.
A small, hands-on operation that's grown into one of the most trusted precast outfits in the region. Good products, good service — that's been the mission since day one.
Our core work is reinforced precast staircases and precast lintels, backed by a full range of concrete components — columns, cills, gullies, air bricks and decorative brickwork. Standard sizes for immediate collection, custom lengths and bespoke moulds to order.
We measure, design, draw and install for residential homes, commercial sites and large-scale developments. Every component to engineer's spec, every install handled by people who answer the phone themselves.
Speak to the team
Precast Staircases
& Lintels.
A full range of reinforced concrete components — precast staircases and precast lintels at the core, alongside columns, cills, gullies, air bricks and decorative brickwork. Every element engineered to spec, cast in Witbank and sized for hand-installation.
- Precast staircases
- Standard & maxi lintels
- Columns, cills & bricks
A staircase
that arrives
ready to walk on.
Speed, accuracy, zero hassle on site. Every rise consistent. Every component sized to be hand-placed. So the next level is accessible the same day.
- 01Exact steps — no screeding required
- 02Eliminates formwork entirely
- 03Rapid installation, instant access to the next level
- 04All rises consistent throughout the staircase
- 05Sized for hand-placement — no crane
- 06Residential, commercial and industrial sites
Engineered
to standard.
Every element is reinforced concrete, designed and signed off by an engineer. Lintels are extruded — meaning we hold serious production capacity and match custom lengths without delay.
Customers collect immediately, or we deliver to site.
- Wire2.64 mm steel crimped, pre-stressed to 60% of breaking
- CementSABS ENV 197-1, strength class 42.5 or higher
- LoadTested per SABS 1504-1990
- StrengthTested per SANS 5863:2006
- Lintels600 – 6 000 mm, custom available
- ReinforceGalvanised on request