D. P. Olson Co.

D. P. Olson Co. is hired for window replacement work. In a 2022 review, a homeowner said they hired Dennis to replace their basement windows and that his crew did an excellent, neat job. That 2022 review is the only one on file, though BuildZoom shows nine permitted projects tied to the company's name — a longer track record than the review count alone suggests. Worth asking about before booking: the Massachusetts state registry shows the company's home improvement contractor registration (#104283) as expired, with Dennis Olson listed as the registered holder — confirm its current status directly with the state before signing anything. For a window replacement job, the one review on file is a good sign, but settle the license question first.