Hamilton is really two housing markets stacked on top of each other. Below the escarpment, neighbourhoods like Durand, Kirkendall, Strathcona, Corktown and Crown Point are full of century homes — brick, plaster, high ceilings, and closets that were either added decades after the house was built or never existed at all. Above it, the mountain and the amalgamated communities are largely postwar and modern subdivisions with the same builder wire shelving as anywhere else in the province.
The older half is the more interesting work. A century home rarely has a square opening. Walls run out of true, plaster is uneven, ceilings are high enough that a standard seven-foot closet looks stranded, and the original storage was often a wardrobe rather than a built-in. That is exactly the situation where building to measurement matters: a kit sized in standard increments will leave gaps at one end and jam at the other, whereas a system cut to the actual wall sits properly and uses the height the room already has.
The newer half is more familiar. Mountain subdivisions and recent infill have generously sized bedrooms with closets finished to a builder's minimum — one rod, one shelf at about seven feet, and vinyl-coated wire that sags once it is genuinely loaded. Those are straightforward improvements: split the hanging into short and long zones, add a drawer bank so the dresser can leave the room, and carry shelving to the ceiling.