01

Fix the intended layout first

List the toilet, sink, shower, tub, storage, clearances, and accessibility needs before selecting plumbing work. Moving a fixture can affect supply, drainage, ventilation, framing, and other systems. Ask the accountable provider what is feasible and what must be verified on site. A sketch is useful for discussion, not proof that the hidden layout can support it.

02

Use exact product specifications

Provide the fixture model, rough-in dimensions, valve and trim compatibility, drain location, mounting, and installation instructions. Similar-looking products can require different preparations. Coordinate the plumbing rough-in with cabinetry, waterproofing, tile, electrical work, and finish choices so a later product change does not invalidate earlier work.

  • Fixture and valve models
  • Rough-in dimensions
  • Waterproofing coordination
  • Finish and access requirements
03

Ask the Village about the precise scope

The current Island Lake Building Department page links permit, building, fee, and contractor-registration resources. Ask about the exact address and work before assuming a general replacement rule applies. Identify who applies, supplies documents, schedules inspections, keeps work visible, and provides completion records. Do not cover work before the responsible authority's required checks.

04

Define the final handoff

The contract should separate plumbing tests, fixture installation, waterproofing, surfaces, cleanup, and punch-list items. Ask who resolves a leak discovered after another trade closes the area. Keep photos of accessible rough work, product records, inspection results when applicable, and the final test details with the project file.

  • Trade responsibilities
  • Inspection sequence
  • Change approval
  • Final tests and care instructions