Just Leaks Inc. has been serving the commercial and industrial roofing needs of Northern California for decades. The company was originally founded by J. Martin Lasica, a dynamic figure in the roofing industry. After moving to California in 1982, J. Martin started a successful roof maintenance company in San Jose called Burmco. Following his retirement in the late 1980s, and after years spent abroad in Asia, J. Martin returned with a renewed passion for the industry.
In the early 1990s, J. Martin teamed up with his stepson, Scott Siemer, to start Just Leaks Inc. Scott, who was born in New Jersey, raised in Connecticut, and moved to California in 1978, had already built a solid foundation in construction. He earned his general building contractor’s license in 1984 and gained extensive experience in new homes, additions, and solar design, including pioneering the first "double envelope" home in Santa Cruz County. Scott’s construction knowledge, combined with J. Martin’s extensive roofing expertise, laid a strong foundation for the company's success.
In 1995, Scott bought out J. Martin and incorporated Just Leaks Inc. His brother, Craig Siemer, soon joined the team, bringing his own extensive construction experience to the role of production manager, overseeing job execution and ensuring project efficiency. Under their leadership, the company expanded its reputation for providing top-notch commercial roofing services throughout the Bay Area.
In 2023, after more than two decades of ownership, Scott passed the torch to Hector Flores, a dedicated team member who had been with the company for 19 years. Hector’s leadership marks an exciting new chapter for Just Leaks Inc., continuing its tradition of excellence in serving the roofing needs of San Francisco, San Mateo, Santa Clara, Santa Cruz, Monterey, San Benito, and Alameda counties.
From Monterey to Livermore to San Francisco, Just Leaks Inc. remains committed to providing the highest quality commercial roofing services for our industrial and commercial clients.
Scott Siemer, the current owner, was born in New Jersey, raised in Connecticut, and moved to California in 1978. He worked in Construction and got his general building contractors’ license in 1984. He focused on new homes and additions and got involved in solar designs – including the first “double envelope” home in Santa Cruz County.
Our company was originally started by Scott’s stepfather, J. Martin Lasica. “J. Martin” – as he liked to be called – moved out to California in 1982 and started a very dynamic roof maintenance company in San Jose called “Burmco”. The company was very
successful and J. Martin retired to pursue personal interests on the late 80s. After spending years abroad in Asia he returned to the states wanting to start another company.
During the housing slow-down of the early 90’s, Scott and J. Martin pooled their resources and started Just Leaks. Scott’s understanding of general construction and J. Martin’s extensive roofing knowledge and business savvy provided an excellent foundation for the new company. Scott then got the additional C39 roofing classification for his contracting license. Scott bought out J. Martin in 1995 and incorporated. Scott soon brought in his brother – Craig Siemer. Craig has extensive construction experience and took the position of production manager. Craig runs the crews and keeps our jobs on track.
From Monterey to Livermore to San Francisco, we proudly provide commercial roofing services for industrial and commercial communities within the following counties: San Francisco, San Mateo, Santa Clara, Santa Cruz, Monterey, San Benito, Alameda.