Anyone can print a business card that says 'contractor'. NCA registration is the line between a licensed construction company and someone with a wheelbarrow and confidence - and it takes about five minutes to check.
Every contractor carrying out construction work in Kenya must be registered with the National Construction Authority. It is not a badge of quality or a trade association membership — it is a legal requirement under the National Construction Authority Act, and building with an unregistered contractor exposes you as the client, not just them.
That makes NCA registration the single most useful thing you can check before appointing anyone. It takes minutes, it is a matter of public record, and it filters out a surprising proportion of the people who will quote you.
What the National Construction Authority actually does
The NCA was established to regulate, streamline and build capacity in Kenya's construction industry. Its practical functions, from a client's point of view, are three:
- It registers contractors and assigns them a category that limits the value of work they may undertake.
- It registers construction sites and projects, which is why a legitimate project has an NCA project registration in addition to a registered contractor.
- It accredits construction site workers, connecting to the trade certification discussed below.
The registration requirement is not optional and does not scale down for small jobs. A contractor building a domestic extension needs registration exactly as much as one building a warehouse.
Contractor categories, and why the number matters
NCA registration is not a single yes-or-no. Contractors are registered in categories, conventionally referred to as NCA 1 through NCA 8, and the category caps the value of a single contract the firm may undertake.
The direction is worth memorising: NCA 1 is the highest category and NCA 8 the most limited. NCA 1 contractors may tender for unlimited contract values; NCA 8 contractors are restricted to the smallest works.
Contractors are also registered by class of work — building works, roads and civil engineering works, electrical works, mechanical works, and water works among them. A firm registered for building works is not thereby registered for water works.
This matters for two practical reasons:
- A contractor cannot lawfully take a contract above its category. If your project is worth more than the contractor's category permits, something is wrong with the arrangement being proposed to you — and it is usually resolved by someone else's registration being borrowed, which is precisely the practice the categories exist to prevent.
- Category is not the same as competence. A category tells you the maximum contract value a firm is permitted to hold. It does not tell you whether they are good. Treat it as a filter, not a recommendation.
How to verify a contractor before you sign
Do this before money changes hands, not after a dispute.
Ask for the registration certificate and the registration number. A registered contractor produces it immediately. Hesitation is itself information.
Check the name matches exactly. Registration attaches to a legal entity. "Primebuild Construction Limited" and "Primebuild Contractors" are different entities, and a certificate in a related company's name is not a certificate in the name of the company you are contracting with.
Confirm the category covers your contract value. If your project is 40 million shillings and the certificate caps the firm well below that, ask directly how they propose to hold the contract.
Confirm the class of work covers your project. Water and sanitation works, in particular, are registered separately. A contractor registered for water works holds a distinct registration from the Ministry responsible for water — as Primebuild does, in addition to its NCA registration.
Verify with the Authority itself, not just the paper. Certificates can be edited by anyone with a scanner. The NCA maintains contractor records and can confirm registration status; using them is the difference between checking and being shown something.
Confirm the project will be registered. Sites are registered with the NCA, and a contractor who intends to skip that is telling you how they intend to run the rest of the job.
What NCA registration does not tell you
Registration is a floor, not a ceiling. It confirms that a firm has satisfied the Authority's requirements to hold contracts of a certain size in a certain class. It does not tell you:
- whether their workmanship is any good;
- whether they finish on programme;
- whether the people physically on your site are trained;
- whether they are financially sound enough to carry your project.
For the third of those, look at trade certification: whether the masons, carpenters, plumbers and electricians hold grade tests awarded by the Directorate of Industrial Training. Registration governs the company. DIT grade testing governs the person holding the trowel.
For the others, ask for references and speak to them, look at completed work in person, and read the quotation carefully — a proposal priced against a properly defined scope tells you more about a contractor's seriousness than any certificate.
The questions worth asking on a first call
- What is your NCA registration number, and which category and class are you registered in?
- Is your registration current, and can I verify it with the Authority?
- Are you registered for the specific class of work my project needs?
- Will the project be registered with the NCA?
- Are your tradesmen DIT grade-tested?
- Who supervises the site day to day, and do they work for you directly?
A contractor who answers all six without discomfort has already told you a great deal.
Where Primebuild stands
Primebuild Construction Limited is registered by the National Construction Authority and by the Ministry of Water & Sanitation — two registrations rather than one, the second covering water and sanitation works specifically. Its masons, carpenters, plumbers and electricians are trained and hold certified grade tests awarded at the Directorate of Industrial Training.
Those are checkable facts, which is the entire point of this article. Ask any contractor you are considering — including this one — to evidence them.
If you would like to discuss a project, call +254 705 555 760 or request a quote.