It’s been 48 years since Frank O’Halloran established Southwood Plumbing & Heating in San Bruno, Calif., serving primarily residential and public entities, but also industrial and commercial customers in nearby communities including South San Francisco.
Denis O’Halloran, son of the founder and current company president, notes that over the years they have seen some significant changes in their market area, not only with development and population growth but in the character of the residential market. He also points out that advances in technology and services have changed the industry.
“Our area has evolved in many ways,” says O’Halloran, who has been sole
