What NCA Registration Actually Tells You About a Contractor

Every contractor bidding for formal work in Kenya should hold a National Construction Authority registration, and checking that registration is a reasonable first filter. But it's a floor, not a guarantee, and treating it as the main qualification check is where clients get caught out.

NCA registration classes correspond to project value thresholds; a contractor registered for a lower class is restricted from tendering for projects above that threshold. The classification reflects financial and equipment capacity at the time of registration, assessed against the categories the contractor applied under (building works, civil works, electrical, mechanical, and so on). It confirms the contractor has met a baseline regulatory bar for that scale and type of work.

Registration doesn't confirm current financial health, current workload, or whether the contractor's team has delivered a project similar to yours in the last two years. A contractor can be correctly registered and still be overcommitted across three other sites, or correctly registered in 'building works' with no recent experience in the specific building type you're constructing.

Pair the registration check with direct reference calls to the contractor's two most recent clients, and ask specifically about cost control and programme adherence, not just whether the building stands. Those two questions tell you more than the certificate does.