Pipes are bursting at The Mouse House — and that’s a good thing.

Spurred by its surprise movie hit, “Frozen,” an animated movie about two sibling princesses trying to reconnect in an icy land, Walt Disney blew past analysts’ earnings estimates on Wednesday.

Fiscal first-quarter profit soared 33 percent. Net income at the world’s largest entertainment company increased to $1.84 billion, or $1.03 a share, from $1.38 billion, or 77 cents, in the year-earlier period. Excluding items, profit of $1.04 beat the 92-cent average of 29 analysts’ estimates.

Sales rose 8.5 percent, to $12.3 billion, in the quarter ended Dec. 28, compared with the $12.26 billion average of analysts’ estimates.

“Frozen” has taken in $865 million in worldwide box-office sales since its Nov. 22 release, becoming one of Disney’s biggest pictures, according to researcher Box Office Mojo. The musical has boosted sales of related products, including dolls, compact discs and video games.

Along with the strong movie studio results, revenue and profit grew for its TV networks, as growth at ESPN offset weakness at ABC. Higher theme park ticket prices and more guest spending offset higher costs associated with the launch of the MyMagic+ bracelet, which helps visitors plan their trip and buy merchandise.

Disney rose 3.8 percent, to $74.50, in extended trading after the announcement. The stock rose 1 percent, to $71.76, on Wednesday, and has gained 32 percent in the past year, matching the 15-member Standard & Poor’s media index.