The deterioration of underground infrastructure, such as wastewater and water transmission pipelines, is a global challenge that demands repair and maintenance methods with minimal excavation and urban disruption. UV-Cured-in-Place Pipe (UV-CIPP) technology is one of the most advanced trenchless rehabilitation methods, in which a resin-impregnated liner is placed inside the damaged pipe and cured in situ using ultraviolet radiation. Despite the success of this method, the design and construction of laboratory-scale prototypes that enable precise control of operational parameters and performance evaluation prior to field implementation remain challenging. In this study, a comprehensive laboratory-scale prototype of the UV-CIPP process was developed using an integrated approach. First, an engineering test bed consisting of two galvanized half-pipes, each 2 m in length and 300 mm in diameter, was designed and fabricated. Next, a radical-polymerizing resin system with suitable performance under laboratory environmental conditions was formulated and prepared. Additionally, a mobile UV lamp carriage mechanism with controllable speed and irradiation angle was designed and fabricated. Subsequently, composite specimens were fabricated using E-glass fiber impregnated with the formulated resin, placed inside the test bed, and cured under UV irradiation. Results indicated that the fabricated specimens exhibited acceptable surface quality (free from cracks, voids, or soft spots upon visual inspection) and achieved an ultimate tensile strength of 143 MPa and a flexural strength of 27.4 MPa. The curing process was completed in 8 minutes. The findings suggest that precise control of carriage speed and irradiation angle significantly affects the final curing quality.