Hw Larson & Son Inc M8154 at Swampscott, MA 01970, held a Plumber license (#1603) with the Massachusetts contractors license board with an expiration date of 05-01-1990. We last verified the license was expired on 04-28-2025.

Their BuildZoom score is 0 because we haven’t been able to verify an active license. As a result, they’re not ranked in the top 50% of 139,240 Massachusetts contractors.

If you’re thinking about hiring them, we recommend double-checking their license status with your local licensing authority. Alternatively, use our project planner to be easily matched to qualified, licensed professionals in your area.