Local leaders blasted City Hall’s years-long bungling of efforts to get lead out of New York’s public and private apartments Monday, following a Post exposé on housing honcho Vito Mustaciuolo’s checkered record.

“Nothing is more important than the health and safety of our children,” said City Comptroller Scott Stringer. “The Post’s investigation further proves systemic and unacceptable breakdowns in the City’s lead exposure response — and the toll that takes on our families.”

The watchdog urged Mayor de Blasio to follow the findings of his own September report, which found that nearly 12,000 lead-tainted kids lived in private homes that were never inspected.

Stringer’s report singled out the Department of Housing Preservation and Development while Mustaciuolo was HPD’s top enforcement official. He was named the general manager of the embattled Housing Authority in 2018.

“We provided a roadmap of critical reforms to put the City on the right path, and I urge City officials to heed our findings and recommendations to ensure they are doing everything in their power to eradicate lead exposure,” Stringer said.

A Post analysis found that Mustaciuolo’s HPD enforcement division failed to secure timely fixes on nearly 6,500 lead violations across over 2,500 homes over less than two years.

Those shortcomings didn’t stop the de Blasio administration from talking up Mustaciuolo as the man to fix NYCHA’s own lead problems, which left the agency under a partial federal takeover.

“It is shameful that the city has long failed to properly enforce existing lead poisoning protection laws, and tenants and NYCHA residents have paid the price,” said City Council Speaker Corey Johnson. “The Council will continue to hold the administration’s feet to the fire on enforcing the existing laws while we work to pass additional bills to further protect children from lead poisoning.”

Danny Barber of the Citywide Council of Presidents — NYCHA’s tenant group — joined the chorus of criticism after The Post’s probe.

“There should be a larger investigation. A lot more needed to be looked into,” he said. “We need to get to the bottom of this as soon as possible.”

City Hall chalked up the agency’s failures to a string of outside hurdles that HPD inspectors face as they work to remove lead.

The Post was invited on a recent ride-along with an HPD inspection team which showed just how stubborn a problem lead can be.

Responding to a routine water leak at the Perez family’s 5-bedroom apartment on Riverside Drive and West 136th Street in Upper Manhattan, inspectors found traces of toxin — even though the unit already underwent one lead removal effort that stripped the paint laced with the metal from its doors and windows three years ago.

“I figured when they took care of our lead a few years ago, this was the end of it,” said Jamy Perez, 29, who lives in the pre-war unit with six other family members including 5-year-old son Leon. “But I guess with paint peeling it came back.”

Those difficulties, officials added, include scoring court orders to get into apartments. HPD sought 263 lead-related “access warrants” — mandates for landlords to open up — between fiscal year 2016 and 2018, but only 97 were granted, figures show.

However, that’s just a fraction of the 2,500 apartments identified by the Post as part of its Monday investigation.

“The Department of Housing Preservation and Development does not hesitate to do remediation work when landlords fails to meet their legal and moral obligation to safeguard our youngest New Yorkers,” said a mayoral rep.

“The City’s housing inspectors have corrected over 3,000 violations and spent approximately $4 million dollars to address lead-based paint hazards since 2016 alone.”