Number eight Ben Morgan and Rhys Miles also touched down to deny fly-half Danny Jones and his Bargoed team-mates.
Llanharan jump into second place after a comfortable 28-0 win over Penallta after a brace of tries from lock Nick Eaves and Newbridge lept to third after returning home 32-20 winners at Blackwood.
They had to fight all the way after trailing 10-8 at the break but second-half tries from Ceri Young, Craig Attell and Lenny Woolhard clinched victory.
Rumney beat Newport Saracens 31-21 who remain bottom of the pile after their fourth straight defeat.
UWIC claimed a first win of the campaign, beating Beddau 33-15 but second-bottom Ystrad Rhondda are still waiting to open their account after losing 25-10 to Caerphilly.
While in Division One East, Dunvant were cruelly denied a shock first win of the season against Carmarthen Quins by a late try.
Second row Alan Powell went over for his second try of the match to complete a resounding fight-back by the league leaders after trailing bottom side Dunvant 19-6 after 45 minutes.
Fellow lock Gethin Evans and prop Alan Davies also crossed as the Quins were relieved to gain a bonus-point win.
That allowed Tonmawr to trim Quins' lead at the top of the table with a sensational 57-12 win at Llangennech to move just three points behind.
Narberth lept up into third place after beating Cwmllynfell 46-3 while Whitland gained a valuable 10-6 away success at Felinfoel thanks to Lee Granville's 1st minute strike.
Bonymaen clinched their first win, 30-11 over Maesteg, while Carmarthen Athletic beat Corus 25-14 who have failed to taste victory yet this season.
