Aim: The aim of this study was to compare the retention of heat cure complete denture bases made by using three different border moulding materials. Method: The present study was conducted to compare the retentive quality of maxillary heat cure denture bases fabricated using three different border molding materials and two border moulding techniques. The study was carried out on 20 edentulous patients with well formed, rounded edentulous maxillary arch with adequate width and height. On each patient, border moldings were done, with Sectional border molding technique using green stick compound and Single step border molding technique using heavy body addition silicone and polyether. According to the border molding materials and techniques used, the sample were categorized into three different groups Low fusing impression compound (Group A), heavy body addition silicone (Group B) and polyether (Group C). In all three groups, secondary impressions were made using light body addition silicone followed by fabrication of maxillary heat cure denture bases. The retention of each denture base was checked using a digital force gauge. Statistical analysis used: Analysis of variance (ANOVA) with least significant difference (LSD) test was employed. Results: A P value of less than 0.05 was considered statistically significant. Highest retention was obtained with (Group C) Single step border molding technique using polyether material. (mean 42.6 ± 4.01), intermediate retention value was obtained with (Group B) Single step border molding technique using heavy body addition silicone material (mean 39.3 ± 5.19) and least retention was obtained for (Group A) sectional border molding technique using low fusing impression compound (mean 34.5 ± 6.00). Conclusions: Based on the study it is concluded that the polyether (single step) shows better retention.