Make space for the mechanical plan
Small homes still need room for equipment, duct routes, access, and controls. Discuss these early so the mechanical work fits the layout rather than competing with finished space later.
Discuss heating and ventilation together
The secondary suite’s heating, exhaust, and fresh-air requirements need coordination. Share the intended room use and current drawings with the mechanical contractor.
Be clear about the project boundaries
Confirm which building and living space each system serves, who coordinates other trades, and which parts of the mechanical work are included. Plan revisions should reach the people pricing and installing the systems.
Plan the stages
Agree on the information needed for planning, rough-in, equipment installation, and final setup. Project-specific permit and inspection requirements should be confirmed with the responsible professionals and local authority.
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