John Tlumacki/Globe Staff

When Harpoon Brewery opened in 1987, its loading docks of a working brewery matched those of neighboring businesses.

John Tlumacki/Globe Staff

But the neighborhood has changed. The brewer underwent a $3.5 million renovation to better accommodate visitors who flock to it.

John Tlumacki/Globe Staff

A wall display at the new entrance is covered with Harpoon beer bottle caps.

John Tlumacki/Globe Staff

A new shop inside near the brew hall sells t-shirts and beer.

John Tlumacki/Globe Staff

Beers roll down the line after being capped on the way to being boxed.

John Tlumacki/Globe Staff

Most of the brewery’s beer is on tap in the new bar at the the new beer hall.

John Tlumacki/Globe Staff

A chandelier in the new beer hall that overlooks the waterfront.