House Pest is an episode of the ALVINNN!!! and The Chipmunks series.
After termites infest Miss Croner's home, she moves in with The Chipmunks and drives everyone crazy.
After termites infest Miss Croner's home, she asks Dave if she can moves into the Seville House with her cats. Dave's pretty much guilted into saying yes, to the dismay of The Chipmunks who are concerned about the duration of her stay and her cats. Later when Simon is doing his laundry, Miss Croner asks Simon to do hers as well, tricks Theodore into making tea for her, and interrupts Alvin watching TV so she could take over to watch her favorite show after claiming she was only going to check to see if it's on. While Dave believes they should make some sacrifices, the boys agree they need to get Miss Croner out of their house. To do that, Alvin puts bugs in her bed, causes her laundry to shrink, and plays loud music when she falls asleep, but she finds ways to get Alvin back. The next day, The Chipmunks see Miss Croner smiling while talking to Russell, the exterminator, giving Alvin an idea - ask Russell to come over for dinner with Miss Croner and when they have a pleasant night Russell will put Miss Croner on top of his waiting list and she'll be out of their house. Alvin helps her get ready while Theodore cooks dinner and Simon selects music. Alvin promises a magical night, but when he doesn't show up, Miss Croner becomes angry thinking Alvin sought to humiliate her. The Chipmunks later find out that Russell was outside, too shy to come in. Disappointed, Alvin cleverly calls pest control reporting a false infestation in the Seville House. The next day, Russell shows up and The Chipmunks force him to talk to Miss Croner. Russell apologizes, asks her to a meal, and moves her to the top of the list and also decides to paint her kitchen, for which she will have to stay at the Seville House even longer.
- "When I Come For You" 
- Series Running Gag: Miss Croner calls someone by the wrong name - Crawford instead of Theodore.
- Series Running Gag: Miss Croner calls someone by the wrong name - Siegfried instead of Simon.
- Series Running Gag: Miss Croner calls someone by the wrong name - Erwin instead of Alvin.
- Theodore being attacked and cut up by Miss Croner's cats is a reference to The Cat Sitter.
- The TV shows parts of the song sequence from Viral, only without The Chipmunks in it.