Purpose In the wake of fierce competition that has ensued among banks to get a share of the depositors' funds after the banking sector reforms in 2017, this study attempts to investigate bank service quality and its influence on customer satisfaction and customer loyalty in the Greater Accra Region of Ghana. Design/methodology/approach Using a sample of 753 respondents (bank customers), the study employs the structural equation modelling (SEM) using Smart-PLS to test the nature of relationships between service quality, customer satisfaction and customer loyalty using the SERVQUAL model. Findings The findings show that, with the exception of assurance, the remaining four antecedents of service quality, namely reliability, responsiveness, empathy and tangibility had significant positive influence on customer satisfaction. The results also show a significant positive influence of customer satisfaction on customer loyalty, implying that more satisfied customers in Ghana tend to become more loyal to their banks. Practical implications For policy purposes, the authors recommend that banks should invest in improving service quality to drive customer satisfaction, loyalty and ultimately firm performance. The satisfied customer is a reliable source of bank viability and survival. Originality/value To the best of the knowledge of the authors, this is the first time a study on bank service quality has been done involving the management of banks in Ghana. This ensures the reliability of results. The findings of this study enhance knowledge of the positive relationship between service quality, customer satisfaction and loyalty using a modified SERVQUAL model.