What grease trap installation typically costs
| Under-sink trap | $1,989–$3,489Trap supplied and connected. |
|---|---|
| In-ground interceptor | $9,989–$24,989Excavation, the interceptor and the connections. |
Typical prices in Metro Vancouver and the Fraser Valley in 2026, before tax. They are a guide, not our quote. Too much depends on your home to price these jobs unseen, so your price is set on site, in writing, before any work starts.
When you need it
- You are opening or renovating a commercial kitchen
- A health or municipal inspector has flagged a missing or undersized trap
- The existing trap is rusted through or leaking
What changes the price
| Size | The trap is sized to the flow from the fixtures it serves. Bigger kitchens need bigger traps. |
|---|---|
| Location | Under the sink is simplest. In-floor and outdoor interceptors mean cutting concrete or digging. |
| Permits | Most municipalities require a plumbing permit and inspection. |
What the job involves
- Size the interceptor to the sinks and equipment that drain into it.
- Choose the location: under the sink, in the floor, or outside.
- Install the trap with a flow control and proper venting.
- Test it, have it inspected and show your staff how to check and maintain it.
- Time on site
- Usually half a day to 2 days
- Permits
- A plumbing permit and inspection are normally required, and the municipality sets the sizing rules.
How pricing works for this job
There is no one price for grease trap installation, because the factors above change it from one home to the next. It starts with an on-site estimate for $269. A Pure Mechanical Group plumber looks at the job and gives you a price in writing, good for 30 days. Approve it and the $269 comes off the price. If you do not go ahead, the fee covers the visit. Anything found once work has started is priced and approved before it is done.
Call 1-800-604-0631.
Questions people ask
How much does grease trap installation cost in Metro Vancouver?
Under-sink trap: $1,989–$3,489. In-ground interceptor: $9,989–$24,989. Typical prices in Metro Vancouver and the Fraser Valley in 2026, before tax. They are a guide, not our quote. Too much depends on your home to price these jobs unseen, so your price is set on site, in writing, before any work starts.
What size do I need?
It is calculated from the fixtures that drain into it and the municipality's bylaw. An undersized trap fails inspection and blocks the drain.
Does a dishwasher connect to it?
That depends on your municipality. Some require it and some forbid it. We follow the local bylaw.
How often will it need cleaning?
When it is about a quarter full. Busy kitchens need it every few weeks.
Is the estimate free?
No. A Pure Mechanical Group plumber comes out, looks at the job and gives you a written estimate. Approve it and the $269 comes off the price. If you do not go ahead, the fee covers the visit.
What if you find something unexpected once work starts?
The estimate is based on what can be seen. Anything found once a wall, floor or the ground is open is shown to you, priced and approved before it is done.
