St George Illawarra hooker Heath L'Estrange has brought down the curtain on his 90-game NRL career.

The 30-year-old rake, who won a premiership with Manly in 2008 and also spent five seasons at the Sydney Roosters, announced his retirement on Friday.

"I'm so lucky to have played 12 years of professional rugby league and I've loved every second of it, if I could play forever I would," L'Estrange wrote on Instagram.

"It's not the way I wanted to go but I'm doing what's right for my family and will now look forward to what lies ahead."

L'Estrange provided great impact off the bench in the first half of 2015 for the Dragons but was relegated to reserve grade when coach Paul McGregor opted to replace him with the younger Craig Garvey.

The dummy half also spent four years playing in the English Super League, where he played 102 matches for Bradford.

AAP