This paper reports on the investigation of thermal properties of Kapok, Coconut fibre and Sugarcane bagasse composite materials using molasses as a binder. The composite materials were moulded into 12 cylindrical samples using Kapok, Bagasse, Coconut fibre, Kapok and Bagasse in the ratios of (70: 30; 50: 50 and 30: 70), Kapok and Coconut fibre in the ratios of (70: 30; 50: 50 and 30: 70), as well as a combination of Kapok, Bagasse and Coconut fibre in ratios of (50: 10: 40; 50: 40: 10 and 50: 30: 20). The sample size is a 60mm diameter with 10mm–22mm thickness compressed at a constant load of 180N using a Budenberg compression machine. Thermal conductivity and diffusivity tests were carried out using thermocouples and the results were read out on a Digital Multimeter MY64 (Model: MBEB094816), while a Digital fluke K/J thermocouple meter PRD-011 (S/NO 6835050) was used to obtain the temperature measurement for diffusivity. It was observed that of all the twelve samples moulded, Bagasse, Kapok plus Bagasse (50: 50), Kapok plus Coconut fibre (50: 50) and Kapok plus Bagasse plus Coconut fibre (50: 40: 10) has the lowest thermal conductivity of 0.0074, 0.0106, 0.0132, and 0.0127 W/(mK) respectively and the highest thermal resistivity. In this regard, Bagasse has the lowest thermal conductivity followed by Kapok plus Bagasse (50: 50), Kapok plus Bagasse plus Coconut fibre (50: 40: 10) and Kapok plus Coconut fibre (50: 50).