Labour in Crosby swept the board in this year's local elections scooping Manor Ward, Victoria Ward and 'Tory-stronghold' Blundellsands.
Cllr Steve McGinnity was re-elected to Manor Ward gaining 1,500 votes.
Labour's new Blundellsands Ward councillor Andy Dams unseated the sitting Conservative councillor, gaining 1,625 votes.
And the party's new councillor Jan Grace took the last Lib Dem seat in Victoria Ward, gaining 1,691 votes.
The results across Sefton have seen Labour gain a total of four seats, meaning the party now has 40 of the overall 66 borough seats.
Cllr Dams was delighted with the level of support.
Cllr Dams said: "I am proud to be elected as the Labour councillor for Blundellsands Ward. My commitment will be to fairness and equality for all.
"It has been a hard campaign but I have had lots of support from my campaign team and from members of the public who have given me their backing.
"I would particularly like to thank all who voted for me. I will not let you down."
Cllr McGinnity said he was honoured to have been re-elected to represent Manor Ward.
Cllr McGinnity said: "I wish to thank the voters of Manor Ward for supporting me yet again in the election.
"I will to continue to serve the communities within Manor Ward and give the best possible support to all residents.
"I would like to thank my team of activists who worked so hard with me on my campaign."
Labour - Steve McGinnity - 1,500
Conservative - 887
UKIP - 691
Green - 234
Lib Dem - 154
Labour - Andy Dams - 1,625
Conservative - 1,121
UKIP - 537
Green - 216
Lib Dem 156
Labour - Jan Grace - 1,691
Lib Dem - 849
UKIP - 669
Conservative - 340
Green - 250