PurposeThe aim of this paper is to apply the SERVQUAL model to evaluate the quality perceived by customers in the context of family hotel management in Portugal. More specifically, to assess the influence of interpersonal relationships (service providers and customers) in family business services in the wine tourism segment (i.e. wine hotel and spa). In this way, it aims to provide data that can support this family hotel to reinforce the quality of the services provided to guests and therefore their satisfaction and loyalty.Design/methodology/approachThe statistical techniques, using Microsoft Excel 2016® and SPSS Statistics 25.0®, were multivariate for the analysis and validation of the results. In this analysis it can be seen that except the empathy dimension, in which the evaluation of perceived quality is positive, i.e. customer perceptions were higher than expectations, the remaining dimensions of the SERVQUAL model were negative. The safety dimension ranked second, followed by service delivery dimensions, problem solving and tangibility.FindingsThe results show that the empathy dimension positively influences the evaluation of the perceived quality and thus also the satisfaction and loyalty of guests to the family hotel in the wine tourism segment. So, it is recommended that the hotel management of this family hotel reinforces service quality by investing in the improvement of physical facilities, problem-solving capacity, and service delivery, to obtain higher levels of perceived quality service and hence customer satisfaction and loyalty and, simultaneously, increase its performance and organizational sustainability.Research limitations/implicationsIn addition to the direct contributions to the hotel management of this family business hotel, this study contributes to the development of the marketing scientific area, tourism and hospitality industry.Practical implicationsSeveral studies argue that the competitive advantage of the hotel business is based on the creation of value and of experiences for the customer, but in the context of family hotels, the creation of value for the customer is even more relevant, given the characteristics of this type of business, such as its small size and the reduced number of employees. Family hotels should invest in tools and techniques that allow them to create value for the customer through the quality of service offered to their guests.Originality/valueThis paper aimed to evaluate perceived quality in the context of family hotel management in Portugal. In particular, the contribution of interpersonal relationships (between service providers and guests), in hotel services in the wine tourism segment in Portugal. According to the analysis of the results of the exploratory study to Hotel context, it was concluded that there are differences between the perceptions and expectations of hotel guests.