Active job

assemble and secure shed to concrete garage floor/wall

I want someone to assemble and install two small sheds into a large garage. We were thinking of Bunnings sheds but will take advice from person installing. The building is an apartment and has an open garage downstairs - we can have the sheds delivered but are happy to pay for the person to pick them up - because the garage is open to the street we want the sheds secured to the wall/floor so that they can't be easily stolen or tipped over to steal the contents