Plumbing engineering for residential and multiplex projects — sanitary drainage, venting and domestic hot and cold water layouts, with fixture schedules, invert levels and stamped, permit-ready drawings for municipal submission. The mechanical discipline, designed and sealed by a professional engineer.
Scoped per project, but this is what a package normally includes.
Fixture branches, stacks and vents sized and routed to the municipal connection, with every fixture draining to a common branch rather than through another fixture.
Supply distribution from the service entry through the building, with pipe sizing, isolation and the hot water source matched to the fixture load.
Invert levels checked against the municipal connection, and sump basins sized where the building cannot drain by gravity.
Plans, riser diagrams and notes prepared to what the municipality expects, with review comments addressed when they come back.
Projects throughout British Columbia, with most work in Metro Vancouver.
If yours is not here, call or send the drawings and we will answer directly.
Sanitary drainage and venting layouts, domestic hot and cold water distribution, a fixture schedule, pipe sizing, and the riser diagrams and plan views a municipality expects at submission. Where any part of the building sits below the sewer invert, basin and pump sizing is included too.
It depends on the municipality and the building type. Simpler single-family work is often handled under a plumbing permit, while multiplex and multi-family projects commonly require drawings sealed by a professional engineer (P.Eng.), with the Letters of Assurance — Schedules B and C-B — alongside the building permit application. Check with your building department, or send us the project and we will tell you what will be asked for.
Sanitary drainage carries waste water from fixtures to the municipal sewer. Storm drainage carries rainwater and groundwater from roofs, areaways and perimeter drains (drain tiles) — stormwater, in municipal wording. They are separate systems with separate connections.
Then it cannot drain by gravity and needs a pump. We check the invert at the municipal connection against the lowest fixture, and where it does not work we size a basin and pump to suit. That is a routine part of the design rather than a separate exercise.
Architectural floor plans, the structural drawings, the site plan or survey, and the fixture layout. If existing services are being reused, information on the current connections helps. We will flag anything else once we have seen the drawings.
Most projects need more than one of these, and they are coordinated together.
Tell us what you are working on and we will come back with a scope and a price — and ask for drawings if we need them.
Or reach us directly