The contest between 'bricks versus clicks', with the disruptive effect of ecommerce on traditional retail formats, is starting to be felt in Thailand. Specifically, home improvement retailers are therefore having to adapt, by creating unique online shopping experiences, which is enhanced by sophisticated electronic customer relationship management (eCRM) systems designed to capture and retain a digitally savvy Thai consumer. Seeing the critical nature if the eCRM process, the researchers undertook an analysis of the opinions of 465 consumers who shopped at one of the five top Thai home improvement retailer stores. Using LISREL 9.10 software to examine the nine hypotheses structural equation model (SEM), it was determined that all the causal factors in the model have a positive influence on customer loyalty, which can be explained by 73% of the variance in Thai home improvement retailer customer loyalty (R 2). The causal variables influencing customer loyalty ranked from highest to lowest, were SERVQUAL, customer satisfaction, corporate social responsibility, and eCRM, with a total value of the influence at 0.57, 0.38, 0.29 and 0.29, respectively. Additionally, the study revealed that extreme caution was needed when social media platforms are used in marketing, as overwhelming consumers with poorly targeted, 'spray and pray' style marketing campaigns can generate disenfranchised consumers who unsubscribe from the marketer's channel.