Cancer-causing asbestos has been found in the roof of Gracie Mansion and work crews will soon start removing it, reports the Associated Press.

Preparations to repair the roof were underway when the asbestos was found.

City Hall insists the asbestos is contained and poses no danger to Mayor Bill de Blasio and NYC’s First Family.

“Gracie Mansion is one of Manhattan’s oldest structures built more than 200 years ago and as with any older homes, maintenance is necessary,” mayoral spokesman Peter Kadushin tells AP. “Beginning this month Gracie Mansion will undergo asbestos abatement and some long-needed roof repairs.”

Repairs were being planned after the roof sprung several leaks over the winter months.

The removal will cost taxpayers  $250,000 and the eventual roof fix $3.4 million, AP says in the report posted on Newsday’s web site.

Follow John A. Oswald on Twitter @nyc_oz.