They had three points to spare over Westmeath.
Laois have been spared the drop to division two hurling in 2022.
They defeated Westmeath 1-27 to 0-27 in the Allianz Hurling League relegation playoff this evening.
There's no doubt the first half sending off of Aaron Craig for an apparent stamp had a massive bearing on the outcome of this game.
The Lake county had started much the better of the two sides and led by six points, 0-17 to 1-8 at the time of Craig's dismissal.
PJ Scully proved to be the key man for Laois in the second half, knocking over 0-11 the most of which were frees.
Shane O'Brien will be left ruing the ill-discipline of his half back and will now have to negotiate a division two league campaign in the build up th a Leinster Championship challenge.
For Laois the late sending off of Willie Dunphy couldn't dampen the spirits and it has been a remarkable turnaround from the side that hadn't won a game in 2021 until three weeks ago.
The showed great composure despite the deficit and also at the death when Westmeath were pressing for a late green flag.
Laois scorers:
PJ Scully 0-17, Ross King 1-2, Cha Dwyer 0-3, Willie Dunphy/Jack Kelly both 0-2, Paddy Purcell 0-1
Westmeath Scorers:
Killian Doyle 0-11, Niall O'Brien 0-7, Darragh McNicholas 0-3, Ciaran Doyle 0-2, Niall Mitchell/Joey Boyle/Aonghus Clarke/Kevin Regan all 0-1.
Keeping Up Unbeaten League Start The Aim For Athlone Town Women
Two Pointer Rule Makes Big Difference To Gaelic Football - Emmet McDonnell
Shane Lowry Records Opening Round Of 72
Tullamore Town FC Ready For Red Letter Weekend
Busy Bank Holiday Weekend In Store For Athlone Town
Big Weekend Ahead In Leinster Minor And U20 Hurling Championships
Leinster SFC: Opportunity Beckons For Westmeath
Westmeath Footballer Luke Loughlin Ruled Out For Remainder Of Season
Laois And Westmeath Battle For Place In Leinster LGFA Decider
Alex Dunne Set For Action In Miami This Weekend
Fundraising Walk Planned For Westmeath Man Left Paralysed In Freak Accident
Shane Lowry In Action In Miami This Week
Westmeath Secure Leinster Minor Football Quarter Final
CCFL: Two Draws In Senior Division
Potential Hometown Fight On The Cards For Joe Ward
Ava O'Connor Breaks Personal Steeplechase Record
Laois Fixture In Two Weeks A "Massive Game" - Kevin O'Brien
Camross Camogie Honoured In Laois Following Historic All-Ireland Triumph
Athlone Town Secure Vital Win In Women's Premier Division
Laois And Westmeath To Clash In Leinster Camogie Decider