Amal Alamuddin and George Clooney are installing a panic room Credit: Alberto Rodriguez/NBC/NBCU Photo Bank

Trespassers beware! George Clooney and Amal Alamuddin are renovating their Berkshire, England, mansion — and it’s going to be high-security, a source reveals in the new issue of Us Weekly.

“They are having a panic room installed,” a source tells Us of the couple, who said “I do” in September 2014 and then spent their honeymoon in the 17th-century British manor house. “It’ll be fireproof, bombproof, and attack-resistant.” 

As for why the husband and wife feel the need for the added protection? The insider tells Us it’s more for Clooney’s human-rights lawyer love rather than his own rabid fans.

“Amal has high-profile clients in controversial cases,” the insider explains of the need for Mrs. Clooney, 37, to protect her files. “She needs to be secure.” 

As previously reported by Us, the couple chose to spend their first two weeks as husband and wife at the estate after making it official in a lavish, weekend-long wedding celebration in Venice, Italy.

According to the insider, the manor is set back from the road in a remote countryside and is said to be luxurious, well-decorated, and super-private.