How to Coordinate Multiple Trades on a Home Renovation Project

A bathroom addition or kitchen renovation involves more trades than most homeowners realize: framing, plumbing, gas, electrical, HVAC, tile, cabinetry, and finishing — each with its own sequence, inspection requirements, and dependencies. When coordination breaks down, the result is delays, rework, and cost overruns. Understanding how the sequence works helps you plan realistically and avoid the most common mistakes.

Rough-in work — the structural, plumbing, gas, and electrical work done before walls are closed — must follow a specific order. Framing comes first, establishing the layout. Plumbing rough-in follows, as drain lines need to be sloped correctly and chased through framing before electrical or insulation goes in. Gas and electrical rough-ins typically happen in parallel with plumbing but must coordinate around penetrations through the same framing members. Only after all rough-in is inspected and approved does insulation and drywall proceed.

Plumbing and gas rough-in decisions affect everything downstream: fixture placement, cabinet layouts, appliance positions, and venting routes. Bringing a mechanical contractor into the planning conversation before framing begins avoids the common problem of discovering a design element isn't feasible once the walls are already up. Drain stack locations, hot water recirculation loops, and gas line routing are far easier to plan than to retrofit.

Many homeowners managing a renovation hire a general contractor (GC) to handle trade coordination, scheduling, and project management. A good GC takes responsibility for ensuring trades arrive in the right sequence, inspections are booked on time, and the project moves forward without gaps. Sturdy Bee Solutions (sturdybeesolutions.com) is a Lower Mainland renovation company that takes this coordinated approach — managing subcontractors across a project so homeowners don't have to juggle multiple independent trades. Working with an experienced GC on a complex renovation typically reduces the total project timeline and avoids the miscommunication that causes expensive rework.

Plumbing and gas work in BC requires permits in virtually all cases. The permit process includes a rough-in inspection (before walls are closed) and a final inspection (after fixtures are installed). Work done without permits creates problems at resale, voids insurance coverage for related incidents, and may require destructive investigation to verify compliance after the fact. Always confirm your mechanical contractor is pulling the required permits before work begins.

• Bathroom addition (new suite or addition): 6–12 weeks depending on complexity and permit turnaround.
• Full kitchen renovation: 4–8 weeks for the mechanical phases; total project duration typically 8–16 weeks.
• Basement development: 3–6 months for a full legal suite including all inspections.
• Permit approval: In Metro Vancouver municipalities, allow 2–6 weeks for residential permit approval before any work begins.