Over the past 40+ years, W.A. O’Leary Company has become one of the most recognized and respected mechanical representative sales firms in the New England region due to the core values established by Mr. William O’Leary from inception: We have integrity and always deliver on our commitments. We value our customers and will always strive to build relationships that exceed their expectations. We communicate internally & externally to drive our business around a fundamental belief of no surprises . We are innovative with our product offerings, growth initiatives and technology advances in both design and service. We do the right thing with proper business ethics in mind to preserve and protect our brand and the corporate brands we represent. W.A. O’Leary has partnered with the industries leading manufacturers of engineered HVAC equipment to represent a diverse selection of mechanical products and systems throughout Massachusetts, Rhode Island, New Hampshire and Maine. Our staff has built solid, successful working relationships by representing quality engineered HVAC equipment and systems that meet the needs of our clients and their facilities. Whether it is high-rise commercial development, tenant space fit-out, educational institutions, life science projects or hospitals and health care services, W.A. O’Leary has the mechanical equipment and product knowledge to support your buildings heating, cooling and indoor air quality requirements. From pre-construction through building commissioning, W.A. O’Leary is here to earn your business.