Grease trap service / dosing refill
Emptying and servicing your grease trap (or refilling and checking your automatic dosing/grease recovery unit) so it keeps fats, oils and food solids out of the drain.
Emptying and servicing your grease trap (or refilling and checking your automatic dosing/grease recovery unit) so it keeps fats, oils and food solids out of the drain.
A trap that is not emptied on schedule stops working — grease passes straight through to the sewer, causing blockages, smells, and breaches of your trade effluent consent conditions.
WHEN
Every 1, 2 or 3 months depending on how much the kitchen fries
COST
£80–£250 per service visit depending on trap size and access
indicative, checked 2026-08
WHO DOES IT
A qualified contractor
R13
LEGAL BASIS
Sits under your trade effluent consent conditions (Water Industry Act 1991 / Sewerage (Scotland) Act 1968).
Find a grease trap servicing contractor
Ask for a waste transfer note for the grease removed — you need to keep these.
Who this is for
Any venue with a full working kitchen and a grease trap or dosing system.
What you’ll hold
- Grease trap service record
- Waste transfer note for removed grease
Watch out for
- Stretching the interval to save money and ending up with a blocked drain mid-service — the emergency call-out costs far more than the missed visits would have.
- No waste transfer note kept for the grease removed — this is controlled waste and needs a paper trail.
- Not adjusting the frequency after the kitchen gets busier (more covers, more frying) than when the schedule was first set.
Sources
- Scottish Water — Trade effluent consent (grease and pre-treatment) checked 2026-09-02
See also
- Grease trap or dosing system— this becomes part of getting open →
This is item 26 of 60 in the free UK Compliance Calendar. See the whole list →