Bonelli Windows and Doors, a San Francisco-based window manufacturer, is Pella Corporation’s latest acquisition. Terms of the deal were not disclosed.

“Bonelli is an important part of Pella’s concerted effort to build a portfolio of the most exclusive luxury window and door brands in the industry,” Cole Adrien, vice president of Pella’s luxury division, tells™. “Bonelli is a strategic business because of its brand position in the luxury market; plus its relationship with architects and its solid customer base. Aluminum is a significant part of the luxury market and key to rounding out our portfolio.”

Condominiums in the Nob Hill neighborhood of San Francisco with Bonelli windows.

Bonelli’s custom aluminum products with insulated barriers are used in both residential and commercial projects.

“Our primary area of focus will continue to be residential projects, but Pella has always done commercial projects from office buildings and hotels to schools,” says Adrien. “With the addition of Bonelli our goal is to offer a complete solution of services and products for architects, whether it is a commercial project or an exclusive residential home.”

The company’s 25 employees will continue to work out of the main headquarters in South San Francisco and David Bonelli will continue to lead the company.

“Daily operations and management will remain the same at Bonelli,” says Adrien. “David has a great team. Pella’s goal is a seamless transition and to build upon the Bonelli brand name and market strength.  In short, Bonelli will remain Bonelli. We plan to grow the business through investments in the capacity of the production floor and the sales staff.”