Commercial Construction Company Est. 1967 J.B. Gibbons has been a leader in commercial building construction since 1967. For 45 years our knowledgeable team and hard work has kept us as one of Pennsylvania's foremost commercial contractors. Since its founding, we have been committed to providing the best construction services available in the Williamsport area. We proudly serve both Commercial and Industrial zones within a 100 mile radius. Working closely with architects, engineers, and contractors, we offer buildings that combine extraordinary aesthetic appeal with optimum functionality. We also offer renovations, remodeling and repairs.