Hey everyone! I'm looking for some advice on how to tackle some big wall cracks I've noticed. Ideally, I would consult a structural engineer, but given my location in eastern Europe, that's not really feasible or affordable. I suspect the foundation might be the culprit, but since it's a two-story building with four apartments and the foundation is fully buried, addressing that isn't possible. The house is old, probably around 60 years or more. My father lives on the ground floor, and I'm trying to assist him from 8,000 km away. These cracks have been developing gradually over several years. In North America, I would usually recommend filling such cracks with an epoxy or polyurethane mix from big box stores (I've had success with a product like [this one](https://www.homedepot.ca/product/sika-sikafix-kit-injection-repair-kit-for-leaking-foundations-3-part-kit-all-in-one-waterproofing-solution/1000172324)), but I'm not sure if similar products are available there. Would my approach be suitable for this situation, or is there a better method? Thanks a lot! I've attached some [pictures](https://imgur.com/a/old-house-Jdz0fTv) for reference.
2 Answers
Filling with mortar could work, but how do you plan to get it into those cracks completely? You might need a caulk gun for better precision.
I suggest filling those cracks with mortar. It’s a cost-effective material and generally easy to work with! Just make sure to clean the cracks thoroughly first.