A Nairobi yard for coastal stone.

About us

A Nairobi yard for coastal stone.

Who we are

Jemkos exists to put honest Mazeras into architecture.

Mazeras is a sedimentary stone mined in sheets from the coast near the town that gave it its name. It arrives with flowered faces, bush-hammered grain and a palette that moves from pale gold to charcoal a material that feels both ancestral and quietly luxurious.

At Jemkos we select, grade and supply Mazeras for architects, contractors and homeowners who want a finish that concrete cannot imitate. Our yard on Ngong Road, opposite Showground, is where projects begin: samples in hand, light on the stone, a conversation about how a wall or walkway should feel at dusk.

Select, don't dump

We reject mixed leftover lots. Palettes are composed so gold, grey, rust and flowered faces stay coherent across a wall or walkway.

Advise before we sell

Driveways need a proper bed. Pool decks need grip. Interiors need a different conversation. We say so before a truck leaves.

Kenyan material, Nairobi light

Stone is coastal in origin and judged here, in Nairobi weather, so you see what the client will live with — not a catalogue fiction.

How we work

From sample to setting out.

  1. 01

    Visit or send drawings

    Come to Ngong Road or share plans. We read orientation, traffic and moisture before recommending thickness and finish.

  2. 02

    Select the palette

    Gold, grey, rust or mixed flowered faces ? graded so the elevation feels designed, not leftover.

  3. 03

    Supply with care

    Packed and delivered for your site programme, with guidance on bedding, sealing and jointing.