KA Building and Remodeling

KA Building and Remodeling is the Waltham shop people call when a basement, a porch or a set of stairs needs building rather than patching. Ken and Jeff run the crew, and the company says it has been doing this out of Waltham since 1986, taking on design, construction, repair, stairs and railings, and porches and decks for homes and commercial spaces. The jobs customers describe are finish-out work. In May 2026 a homeowner had Ken build a gym in their basement and credited him with ideas they had not thought of themselves; he also carried furniture upstairs and fitted an umbrella anchor plate on the deck while he was there. A December 2025 customer had their basement fully finished, got help with the layout, and was talked through each step of the inspection process — they were already lining up a kitchen next. How decisions get made comes up as often as the work itself. A 2024 customer described being walked through every option with the pros and cons of each, and being sure they understood what was going to happen before anyone started. A 2022 reviewer said much the same about figuring out what they actually wanted, with examples to look at, and another that year named Ken and Jeff for the pride they take in the job. Six reviews sit behind that, spread between 2022 and 2026 and all five stars, alongside a five-star Google headline from nine ratings; one of the six was written in the last six months. For a basement finish, a porch, or stair and railing work around Waltham, this is a small crew with a long run behind it and customers who say they were kept in the loop. Before booking, ask who will be on site day to day and how the inspection sign-offs are scheduled.