Depending on how frequently it needs to be connected and how much tension it needs to hold, it might be worth taking a look at some Wago connectors, as i’ve generally been impressed by how well they hold. Not really an option if the connection needs to be regularly connected and disconnected, but if it’s just occasional it could be an option.
Outside of that I would second Aubeynarf’s suggestion, but don’t have much personal experience with them.
But outsourcing them to an collection of independent bureaucracies(companies) is so much more ‘efficient’ than one bureaucracy just building what it needs to.
Besides, the government owning and developing housing would just be a huge cost to the taxpayers given how unprofitable it is to own or sell real-estate. Why the government might even build enough to actually house all the people waiting on public housing and then rent out the surplus out at below market rates but above cost in order to help fund the service, and that sounds like it could cut into the profit margins of the poor landlords.
Nope, far better to make a deal where the government assumes the risk for the project if a project fails, and the corporations get to take all the extra profit if a project succeeds./s