The young Green Island side started well as livewire midfielder Joel Stevens initiated some good attacking play with his trademark jinking runs.
Technical took more time to get into the match and was rewarded for some good attacking play just before halftime when George Milne benefited from a weak defensive clearance to drive a left-footed shot from the edge of the box past the Island keeper.
Technical doubled its lead in the 53rd minute.
It was awarded a dubious penalty when striker Aaron Burgess was adjudged to have been fouled in the area.
Burgess converted the spot kick and Technical finished its task with a goal in the 75th minute when Mike Flaws initiated and finished a neat passing interchange on the edge of the box.
Cody Robinson looked composed on the ball for Green Island and Dan Rutter worked tirelessly.
Mosgiel claimed three valuable points when it beat University 2-0 at the Caledonian Ground. University played the better football in the opening half but failed to convert possession and territory into goals.
Mosgiel looked rejuvenated in the second spell.
Mosgiel midfielder Reagan Coldicott scored two goals after some crisp build-up play through the centre of the park.
Mosgiel keeper Tom Stevens was solid in goal and happy about his first clean sheet after making his debut the previous week against Caversham.
Surprise package Queenstown continued its steady form with a come-from-behind win over Northern at the Queenstown Events Centre.
James O'Callaghan gave Northern the perfect start in the 13th minute, when he side-footed home an accurate shot to open the scoring.
Rovers balanced the ledger in the 35th minute after good build-up play and a strong finish from Jay Hardwick.
The home side banked the points in the 46th minute, when Olly James smashed home a shot after a goalmouth scrabble.
Roslyn-Wakari looks certain to finish in third place after a 6-2 win over a depleted Grants Braes side at Ocean View.
James Govan claimed a hat trick for Roslyn, while Sam Martin scored a brace for Braes.
By Wilson James.
