[BernadetteGlover]

I'd suggest looking for a company that is open to collaborating and accommodating your preferences. When it comes to warranty, you'll need to have clear communication with the construction company to ensure they take responsibility for the specific parts they work on, while understanding that you'll handle the rest.
Speaking from personal experience, when I built my house a few years ago, I wanted to install an elevator for my grandparents' convenience. I found a reliable lift maintenance company (https://hinchong.com/lift-maintenance-singapore/) that not only installed the elevator efficiently but also provided ongoing maintenance support. It made a huge difference for my grandparents and gave us peace of mind.