The husband and wife team are part of a long list of Smith family members who have an association with the college. 

Mr and Mrs Smith started work at the college when it was known as Bendigo High School in 1977. 

The pair worked alongside Mrs Smith's father Cliff Holmes, who started work during 1968 under the guidance of headmaster at the time Eric Bryant. 

For the past three years Mr and Mrs Smith have worked with their son Paul. 

Mr and Mrs Smith said it had been a pleasure to work at the school for more than three decades and they would miss it. 

Mrs Smith, who worked at the school for about 23 years, said she would miss the staff and students the most. 

"We have formed some great friendships," she said. 

"Some of (the students and staff) said they had never known any other cleaners.

"Some said they weren't even born when we started.

"Gerry has been like a father-figure to some of them." 

BSSC principal Dale Pearce said the college community relied upon contributions from a diverse range of people. 

"Gerry and Carol have played an integral role in the life of the college during the last three decades," he said. 

"Their work has gone above and beyond what we could expect from anyone in their position.

"The small things they do for the staff and students make our daily work and study more safe and enjoyable.

"They're loved and respected by our staff and students, and will be sorely missed."

Mrs Smith said the pair intended to do some travelling during their retirement which included a trip to Queensland in May.  

But she said the pair would drop into the school on a regular basis to catch up with staff and students. 

"We will get in trouble (if we don't drop in)," she said. 

"We have been asked to come back to all the morning teas.

"We have made lots of brilliant friendships."