“We won’t give up, we won’t give in, we’re here to fight, we’re here to win!” shouted Anna Berger, secretary treasurer to the Service Employees International Union, yesterday morning to a crowd of striking janitors protesting outside 100 Summer St.

The janitors represented the 1,200 workers who walked off the job on Sept. 30 to protest unfair labor practices. Their main target is UNICCO, the cleaning company that has so far been unwilling to negotiate a new contract that would provide the janitors with full-time jobs and health insurance.

One of 18 commercial buildings in Boston cleaned by UNICCO, 100 Summer St. has been a major strike site.

The janitors, who have gathered here each morning since Oct. 1, marched fervently in a circle around the courtyard. Some blew whistles; one chanted “Do you hear it? Do you feel it? The union is here” in Spanish into a megaphone; a trio banged rhythmically on empty water jugs and inverted paint buckets.

Rocio Saenz, deputy trustee of SEIU Local 254, led the shouts for justice as they formed a cluster behind a brilliant purple banner that read “Health Care Now!”

“What do we want?” Saenz asked.

“JUSTICE!” they hollered.

“When do we want it?” she yelled.

“NOW!” they roared.

Though janitors gather here each morning, the crowd filled the promenade yesterday to hear Anna Berger deliver words of inspiration and national support to the union. Here from Washington, D.C. to present Local 254 with $1 million in strike benefits, Berger spoke heatedly to the already riled-up crowd.

“I am speaking on behalf of SEIU members from across the country; the hundreds of thousands of workers who make up this union,” Berger declared to a cheering crowd. “We are the biggest union of service workers and I am here on behalf of them!

“The 1.5 million workers across the country stand with you and fight with you as you fight for the American dream and the basic benefits that you deserve,” she continued. “Janitors from Washington D.C. to Los Angeles, San Francisco to Baltimore and Chicago have pledged themselves to this fight. They say, ‘Your fight is their fight!’ And janitors from all over the country have said, ‘Where they can honor picket lines, they will honor picket lines!”

The money, donated by union members located throughout the country, is to help the janitors “stake this out as long as it takes in Boston,” Berger said. The money comes in addition to donations made by an executive at the John Hancock building for $1.5 million and Arnold Hiatt, former chief executive of Stride Rite Corp., who raised $200,000 for the janitor’s strike fund last week.

The janitors, who continue to garner support from both union workers and building owners, took their crusade to Hartford yesterday. Boarding a bus, their purpose was to express their discontent to fellow union workers and janitors who work for UNICCO throughout Connecticut. Berger said the Hartford janitors have expressed support for Boston workers.

Closing with another chant, she shouted, “We’re ready to strike, we’re ready to win, we’re here to fight, we won’t give in!”