It is not only possible but also recommended to conclude a contract during renovation.
What type of contract is it?
In such cases, a contract for work and labour / construction / performance of work is concluded (often referred to as a "renovation contract").
Why is it necessary?
A contract provides you with legal protection because:
It defines what must be done (scope of work)
It sets deadlines
It determines the price and payment terms
It regulates liability in case of breach
👉 In practice, disputes are very difficult to prove without a contract.
What must be specified
1. Detailed description of works
Type of renovation (cosmetic, capital, etc.)
Specific works (electrical, plumbing, finishing)
2. Deadlines
Start and completion dates
Stage-by-stage deadlines (if necessary)
3. Price
Total cost
Payment schedule (advance, by stages, after completion)
4. Materials
Who provides them (client or contractor)
5. Liability
Penalty for delay
Liability for defective work
6. Acceptance
How the work is handed over
Execution of acceptance certificate