Commercial grease trap cleaning does not have one reliable national price because the work changes with trap size, waste volume, access, service scope and urgency.
Why one headline price is rarely useful
Two traps with similar capacities can still be very different jobs. One may sit beside an accessible service yard and have been maintained regularly; another may be in a basement with a long hose run and years of internal build-up.
A useful quote therefore needs enough site information to describe the actual job rather than just the postcode.
Trap size and retained waste
Larger traps can hold more material, but the current fill level matters too. A large trap serviced regularly may be simpler than a smaller unit that is badly overdue.
Where possible, provide the manufacturer, model or approximate capacity and the date of the previous service.
Cleaning scope matters
Routine emptying removes retained liquid, grease and settled solids. A fuller cleaning service may involve additional work on accessible internal surfaces after the bulk waste is removed.
If persistent odour, hardened residue or a long service gap means a fuller clean is likely, make that clear at the quote stage.
Access can change the job significantly
Vehicle position, hose distance, parking restrictions, basement locations, internal traps and limited service windows can all affect how the work is planned.
Photos of the trap and the route from likely vehicle access can be more useful than a long written description.
Urgency and timing
A planned maintenance visit and an urgent request during trading hours are different operational situations. If the trap is overflowing or the kitchen is already being affected, explain the symptoms clearly rather than simply asking for a standard clean.
For routine work, offering sensible access windows can make scheduling easier.