demolition contractor; wrecker
A business or person that dismantles buildings, vehicles, or large structures. Often used for small-scale operators.
When we tore down the old house, we hired a demolition contractor.
scrapyard; junkyard; auto wrecker
A place where vehicles or machinery are dismantled for parts and scrap. Also refers to the business itself.
I took the wrecked car to the scrapyard and had them salvage the parts.
Compound of 解体 (dismantling, demolition) and 屋 (shop, dealer). The exact historical derivation is uncertain, but the word follows a common pattern for naming trades and businesses.