Matt McQuillan studies the decades-old steam boiler for a space to plaster his new “McQuillan Brothers” stamp. “The old one took up all the good real estate,” he says to his brother. There’s the ...

Battered by the slow economy, what was likely among Minnesota’s oldest plumbing businesses closed this month. A fixture of St. Paul’s building trades for more than a century, McQuillan Bros. Plumbing ...