The craftsman does not deliver. Stay in the contract or cancel?

Hello dear forum community,

we have been moved in for almost a year now, but one trade has only completed about 80% of the work. There have already been a thousand deadlines that were not met, but also a lot of money that he has not received from us. In theory, it would not be a problem to find someone else who would complete the remaining work for the money. I don't really want to go to a lawyer now, so I would like your opinion. Should I just terminate normally and then look for someone else? Or stay within the contract, and if the other person is more expensive, would that possibly be a damage resulting from the non-fulfillment of the contract?

We don't even have a normal contract with the craftsman. It is a signed one-page offer. So regular law applies without any special contractual agreements.

It always depends on which trade, what kind of remaining work, what kind of contract between whom? Were the deadlines of a formal nature?

And then the thought is very obvious: the craftsman is very dissatisfied with the client because they do not pay. Therefore, he does not complete his remaining work.

In the case of such a change, I would examine exactly what this means for the warranty services. For what reason are the works not being completed?

It is about electrical work. The electrician has too many other jobs. Warranty services without a court will probably not happen anyway. And I won't pay the money because he also doesn't get around to writing invoices.

Sounds like a broken relationship and a failed communication breakdown. My approach would be to redesign it. I wish you all the best.