Work is well underway in the demolition of three buildings on a former part of the University of Bridgeport campus for the new Bassick High School in the city’s South End, after a lot of back-and-forth about the location and financing. The demolition and hazardous materials abatement, by all accounts, went more smoothly. AAIS Corp., a West Haven company on the state’s preapproved list of demo and haz-mat contractors, won the bid for $8,769,000 on Sept. 30, city records show. “The opinion is that AAIS would provide a better, completed job even though their initial price is higher overall,” Michele Otero, a construction project manager for the city of Bridgeport, wrote in the minutes of the Sept. 30 special meeting of the city’s school building committee. AAIS was by far the largest recipient of work on state buildings between 2017 and the end of 2021 among the companies on that preapproved list, I reported Sunday — with $20.2 million of the $28.8 million in work orders. Bestech was No. 2, at $8.2 million and the other two firms pulled in less than $400,000 combined.