The company

The most experienced builder in the DRC

From the first client brief to long-term maintenance, A1 delivers the entire build, with every specialist trade under one roof.

The film

The A1 film

A short film on who we are and what we build.

Our story

Who we are

A-One Builders is the largest and most experienced construction company in the Democratic Republic of Congo, delivering complex residential, commercial, institutional and hospitality projects from concept to completion.

Since 2017 we have delivered more than 150 projects with a team of around 4,500 people, landmark buildings that have reshaped the skylines of Kolwezi and Lubumbashi.

We work with clients from the inception of a project: understanding their needs, then crafting bespoke projects that meet their investment or end-user objectives. Our clients come back, repeat business built on a track record of delivering complex projects on time and to budget.

Capabilities

What we do

The capabilities we bring to every project, most of them in-house.

Construction management

Planning, engineering, procurement and mobilisation through to completion.

Project management

One accountable team from the first client brief to handover.

EPC contracting

Engineer, procure and construct under a single, accountable contract.

In-house specialist trades

Steel fabrication, carpentry, masonry, MEP, façade and finishing under one roof.

Quality & safety

A dedicated QA team and full-time HSE team on every site; QMS review towards ISO.

Facility management

Property maintenance, repairs, AMC, servicing and upkeep to ensure efficient day-to-day operations.

Property management

Property leasing, tenant sourcing, sales and management of residential and commercial properties.

Real estate investment

Strategic real estate investment partnerships focused on creating long-term value and building wealth.

A dedicated quality-control team and a full-time safety manager and team work on every site. Our QMS is under review towards ISO accreditation.

In-house

In-house production

Being in-house only counts if you own the plant. A1 batches its own ready-mix concrete, casts its own bricks and paver blocks, tests what goes into them in its own laboratory, and holds its own stock, all close to the sites they serve.

Ready-mix concrete plant, Lubumbashi

Our batching plant in Lubumbashi, so a pour is planned around the programme rather than around a supplier.

Ready-mix concrete plant, Kolwezi

A second plant in Kolwezi, keeping concrete supply next to the sites it serves.

Brick & block production

Bricks and blocks produced by A1, close to the sites that use them: less transport, a lower carbon footprint.

Paver-block production

Paver blocks cast on our own line for the external works that finish a project.

Materials testing laboratory

Concrete, aggregates and soils tested on our own equipment, so quality is checked as the building goes up, not after.

Warehouse & stock

Pipes, steel sections, fittings and finishes held in our own stores, so site work is never waiting on a delivery.

Warehouse & stock

Partners

Our partners

Government departments and institutions, international and local companies, and the banks behind the projects. Our track record is built on relationships that come back.

Government & public institutions

Banking partners

International & local companies

Materials

The brands we build with

What goes into a building matters as much as who builds it. A1 specifies and stocks established international brands across every trade, from cement and boards to sanitaryware, tiles, electrical systems and appliances.

Cement, steel & building materials

Sanitaryware & plumbing

Tiles, surfaces & finishes

Doors, windows & hardware

Electrical & cabling

Home appliances

Craft

Craftsmanship & people

Craftsmanship at A1 means producing exceptional, bespoke work that cannot easily be replicated, our in-house steel and wood craftsmen are central to that.

Skills are passed on. Senior site personnel actively train new team members, and we collaborate with training institutes and run internships to grow the next generation of builders.

Safety

Health & safety

A full-time safety manager and team work on every A1 site. Health & Safety Week takes that further: the whole workforce stops for drills, toolbox talks and site inspections.

People

Training & skills development

Skills are passed on at A1. Alongside mentoring on site, technical and safety sessions are run in our own training room for site teams, engineers and supervisors.

On the ground

Local knowledge

We understand what it takes to build here, and we design for it.

Built for local conditions

Our designs account for the rainy season and limited infrastructure, every project is self-sufficient in water, sanitation and power.

Local + international standards

Local and international architects and technical teams, with finishes benchmarked to international standards.

A lower footprint

Bricks are produced locally, close to our sites, to cut transport and reduce the carbon footprint.

News

News & events

Where A1 shows up: industry weeks, business forums and client events across the DRC.

2026

Build with A1

Tell us about your project and our team will be in touch.

The most experienced builder in the DRC

Construction management

Project management

EPC contracting

In-house specialist trades

Quality & safety

Facility management

Property management

Real estate investment

Ready-mix concrete plant, Lubumbashi

Ready-mix concrete plant, Kolwezi

Brick & block production

Paver-block production

Materials testing laboratory

Warehouse & stock

Warehouse & stock

Government & public institutions

Banking partners

International & local companies

Cement, steel & building materials

Sanitaryware & plumbing

Tiles, surfaces & finishes

Doors, windows & hardware

Electrical & cabling

Home appliances

Built for local conditions

Local + international standards

A lower footprint

Client & partner evening

DRC Mining Week

Kolwezi Business Meet