New crack appeared overnight - how worried should I be?

Woke up this morning and noticed a crack in my basement wall that i swear wasnt there yesterday. Its about 3 feet long and runs diagonally from a corner of the window. The house is only 12 years old and we've never had foundation issues before. Is this normal settling or should i be calling someone immediately? Im kind of freaking out here

7 Comments

FoundationPro_Mike Jan 17 at 9:12 AM

First things first - take a deep breath. Diagonal cracks from window corners are actually pretty common and often not structural. That area is a stress point. How wide is the crack? Can you fit a credit card in it or is it hairline?

worried_homeowner_22 Jan 17 at 9:28 AM

its pretty thin, maybe like the thickness of a dime? definitely cant fit a credit card

FoundationPro_Mike Jan 17 at 9:45 AM

thats good news. anything under 1/8 inch is usually cosmetic. monitor it for a few weeks - put a piece of tape across it and mark the date. if the tape tears or the crack grows significantly, then get an inspection. but dont panic yet.

basementDweller99 Jan 17 at 10:33 AM

Had the exact same thing happen last year. Turned out it was just from the ground freezing and thawing. The crack showed up in February and by summer it hadnt gotten any bigger. Filled it with hydraulic cement and its been fine since. Hasnt come back.

structuralSteve Jan 17 at 12:15 PM

One thing to check - is there any horizontal movement? Put your hand on both sides of the crack and feel if one side is pushed in more than the other. Thats what you really want to watch for. Diagonal cracks that are just separation are one thing, but if the wall is actually moving inward thats more concerning.

worried_homeowner_22 Jan 17 at 12:44 PM

just checked and both sides feel flush. thats good right?

anxious_anna Jan 17 at 2:20 PM

i know exactly how youre feeling. when i found my first crack i barely slept for a week. got 3 different foundation companies to come look at it and they all said it was nothing to worry about. sometimes houses just crack a little, especially in climates with freeze thaw cycles.