GMC MASON has been serving the Connecticut area for over 20 years, specializing in residential, commercial and industrial masonry. We provide exceptional quality and service for all types of construction projects. At GMC MASON, we are proud of our record for completing projects on time and within budget. Communication, teamwork, and on-site supervision of projects from beginning to end are the keys to our success and your happiness. All projects are carefully planned, scheduled and financially managed in order to complete each on time and on budget.