The Westmeath champions were in superior form throughout their meeting with Killoe.
Defensive hunger and attacking accuracy saw St Loman's over the line against Killoe Young Emmets yesterday.
The Westmeath Champions were impressive 1-20 to 1-10 winners in their Leinster Senior Football Quarter Final in Longford.
Ronan O'Toole's 12th minute goal helped Loman's on the way to a nine point lead after 15 minutes.
Paddy Dowdall's side saw out the game from there, the club's manager and former player says it was a complete performance:
Naas will provide the opposition in that semi-final in two weeks after they won out against Summerhill of Meath.
St Mary's Ardee will face Kilmacud Crokes in the other semi final.
The Louth champions were convincing winners over Blessington while Crokes were far too strong for Eire Og of Carlow on Saturday.
Elsewhere,
Kilcoo advanced to the quarter-finals of the Ulster Championship after a 2-13 to 1-7 defeat of Derrygonnelly Harps.
Paudie Clifford captained East Kerry to a 2-10 to 0-15 win over Mid Kerry in the Kerry county final, while Corofin were 1-11 to 1-9 winners over Moycullen in Galway.
Newcastle West edged out Adare by 3-5 to 0-13 in the Limerick decider at the Gaelic Grounds.
Ballygunner's bid for a third successive Munster club hurling title remains on course.
The Waterford champions hammered Sarsfields of Cork by 2-20 to 0-9 in yesterday's quarter-final at Walsh Park.
Full Interview: Portarlington Footballer Ronan Coffey
Full Interview: The Down's Manager Dermot Power
St Brigid's And St Joseph's Aiming To Reach Leinster Semi-Finals
Ballinagar And Milltown To Meet In Leinster Intermediate Quarter-Final
Ronan Coffey Praises Portarlington’s Young Guns Ahead Of Leinster Quarter-Final
Mauricio Pochettino Set To Be Appointed Manchester United Manager
Darragh Murray Named In Irish Squad For Fiji Clash
Portlaoise Panthers Aiming To Bounce Back In Division One
Portarlington On The Road In Leinster
The Down's Building Towards Leinster Football Quarter-Final
Laois Provisional League Fixtures Revealed
The Harps Manager Praises His Sides Efforts In Leinster
Buccaneers Claim Back To Back AIL Wins
Kilcormac Killoughey Captain Full Of Praise For Goalkeeper
Lough Lene Gaels Suffer Late Heartbreak In Leinster Quarter-Final
Crookedwood Win Leinster Junior Camogie Title
Conor Slevin Wins Dramatic Leinster Quarter-Final For Kilcormac Killoughey
Ireland Secure Comfortable Win Over Argentina
Kilcormac Killoughey Seal Win But Heartbreak For Lough Lene Gaels And The Harps