Newer home owner here. I have these cracks on the foundation of the house. Behind them is a crawl space open to dirt. How should I fix or address these? Do they need to be fixed? I try and DIY as much as I can so don't be afraid to suggest a DIY solution. I'm also not above getting professional help, I just haven't had to thus far.
I wouldn't be overly concerned that the concrete cracked...it does that sometimes. Be concerned if you have heaving/unevenness in the support of your home. As others have said - contact a professional. I would suggest an engineer, not a foundation repair salesman...you get where I'm going with that - the foundation company will always suggest large-scale repairs. An engineer that has no financial dog in the fight will cost a bit but will give an hones opinion.