Beech said the award recognised all of the hard work put into training, community activities and fundraising.
The awards were the "icing on the cake" for the club, Beech said.
"It has been a fantastic year. We have been for the last few years raising funds to build our new rescue boat which we launched two weeks ago," he said.
He said the club also won the Trustpower Supreme Award earlier this year.
Beech said the club was recognised for a "combination of reasons".
"We are a very committed unit, community orientated, we go above and beyond for our community," he said.
He thanked the community for its ongoing support.
"We would not be able to do what we do without our community."
Coastguard Awards of Excellence 2018 winners
Community Relations Activity of the Year
Winner: Coastguard Maketu
Unit Support Volunteer of the Year
Winner: Neroli Gold, Coastguard Kaikoura
Communications and Incident Management Volunteer of the Year
Winner: Peter Kara, Coastguard Nelson
Rescue Vessel Volunteer of the Year
Winner: Mike Carson, Coastguard Wanganui
Rescue of the Year
Winner: Coastguard North Canterbury
Unit of the Year
Winner: Coastguard Maketu
Coastguard Volunteer of the Year
Winner: Neroli Gold