Gowling has served a two-match suspension and is set to slot back into the starting line-up against the Bees.
Gills manager Mark Stimson is unlikely to make many changes to his side, although loan defender Matt Fry is suspended.
The West Ham youngster must serve a one-match ban for collecting five yellow cards this season, so Stimson is likely to drop John Nutter back from the wing into the back four.
Febian Brandy's thigh strain has cleared up and he will be fine to continue in attack, but veteran goalkeeper Simon Royce remains sidelined after a car crash so Alan Julian will continue between the sticks.
Brentford have been handed a double boost. Ipswich have agreed to extend defender Pim Balkestein's loan stay with the Bees by a further month.
Balkestein, who was named Town's most improved player last season in his first campaign at the club, has impressed during his month-long stay with the Bees.
The 22-year-old will now stay at Griffin Park until January 17, while Brentford have also extended Wojciech Szczesny`s loan stay from Arsenal into a second month.
The Poland international goalkeeper, 19, has enjoyed a highly successful initial month-long stay at Griffin Park where he has made six appearances and conceded just three goals, keeping three clean sheets.
Scott's men won 1-0 at MK Dons last time out and regular keeper Nikki Bull is the only long-term absentee after a shoulder operation.
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