Sort of correct,
However, your home becomes a workplace covered by OSHA regulations. The employer is compelled to provide a safe workplace. Your homeowner's insurance protects you from suits that arise from injury to visitors in your home. So if you have a dangerous situation you can expect installers to leave. This could include sneezy sick infectious family members, agressive pets, clutter that blocks access to the work. They will not do your installation and the installation company will not send another tech until things are safe.
All this is really rare..........most techs will go with the flow and most homes are just fine. We are looking at extreme situations here.
Joe
No argument from me... I fully respect the rights of an installer to refuse to do the work b/c their safety would be at issue.
EDIT: and for the purpose of the thread, I think the mainstream discussion is about a residence which is NOT a safety hazard, and whether an installer should remove boots, or wear shoes covers, and/or how to mitigate adding to the (hopefully) minimal mess at a residence. I would hold my house out as mostly clean (as clean as one can keep it with a toddler), but was on the receiving end of an installer who tracked rather full boot-prints of mud across 40' of carpet... and truly shrugged, blamed it on his boss for not stocking slip clovers, and made zero offer to help clean up. It was nothing but a poor attitude.. and to top of it.. he did a poor install too. I had to have someone back out a few weeks later. He did have slip covers, did clean up the bad connections, and also did get the tip that the 1st guy never got.