I'll scare you a little:
A colleague at work also chose a company based on a personal recommendation from the family. Everything went perfectly and quickly for the referrer. However, many things went wrong for the colleague because the company's architect messed up the building application for months. Then winter came, and the foundation slab couldn't be poured. Several subcontractors also made serious mistakes.
So, stay calm, see construction companies as partners, and participate positively, then it will work out.