The Owls were 9 for 20 from 3-point range, including a 4 for 6 effort by Collier, who also had nine rebounds, three assists and two steals.
The Owls improved their record to 5-3. Their next game is Sunday, Dec. 18, when they host Fisher College of Boston at 1:00.
Westfield led from start to finish, jumping out to a 51-36 halftime lead over winless Albertus Magnus (0-5). The Owls shot 54 percent from the field and outrebounded Albertus, 41-28.
Senior forward James Ogbunized also had a fine game with 15 points, seven rebounds and a career-high six blocked shots.
Sophomore guard Andy Deffer, starting his first collegiate game, scored 12 points. Junior guard Gavin Illangakoon finished with seven points and a game-high eight assists and freshman reserve forward Matt Badjo had six points and a team-high 10 rebounds.