Gidley crossed twice in the first half to help the champions into a 16-0 lead, and grabbed his hat-trick score in a second half that saw Saints rack up 32 unanswered points, despite predictions of a close-fought contest.
However, a Warrington comeback ensued before the half-time interval, tries from the impressive Lee Briers and Henry Fa’afili bringing the home side back into contention, trailing as they did just 16-12 at the break.
Gardner was the other first half try scorer for the visitors; his try, along with Gidley’s brace, helped St Helens into a 16-0 lead, until the Wolves hit back to ensure a competitive finish to the opening forty minutes.
However, that was as good as it got for Warrington, as Paul Cullen’s men failed to get over the line in the second half, in contrast to the champions, who touched down for six tries.
Francis Meli opened the second-half scoring for the Saints after just four minutes, followed by Gidley’s hat-trick score, and a touch down from Mike Bennett that virtually finished the game as a contest.
Leon Pryce extended his side’s tally, first with a try from a 95-metre run, followed by a second born of some clever St Helens passing and movement, before Paul Wellens completed the rout for the champions.
Sean Long, despite missing three attempts at goal, took his goal tally to six, as St Helens put the ghost of their poor Super League start behind them, and re-affirmed their status as championship contenders.