Abstract
Contractual claims are essence issues and normally disputed as they cause losses if the contractual claims fail to be honoured. The completion of projects can be best without any arising contractual claims by the contractors. However, this appears to be too ideal and almost impossible. Contractual claims have connotations of time and monies, which are to be honoured by the client to the contractor as a payment or compensation for the incurred cost. The present article establishes the success rate or extent to which contractual claims are honoured and the implications of the client's decisions on contractual claims that are not honoured. The questionnaire was distributed to professionals involved in the administration of contractual claims in projects. Descriptive analysis was used to analyze data. Findings revealed that most contractual claims are honoured in full when they are small in numbers, and when contractual claims increase, the success rate also decreases. The findings further indicated that most projects end in cost and time overruns due to clients' decisions on contractual claims. It is expected that the findings of this research will help construction stakeholders to avoid the main causes of contractual claims, and thus increasing the chances of contractual claims being honoured and improving the overall performance of construction projects concerning minimized delays and cost overruns.