Greater London · Grease trap cleaning
Grease trap cleaning in Westminster, Greater London
Our technicians work in Westminster on grease trap cleaning. Fixed quotes, work around your opening hours and photo reports as standard.
- Grease setting in the kitchen pipework
- Foul odours from the grease trap
- A grease trap that hasn’t been emptied in a long time
Common problems we fix in Westminster
Food scraps go down the sink with the washing-up water. Solids settle at the bottom of the trap and fill it from below.
Clients normally contact us after spotting something like this:
- An interceptor full of grease and solids
- A kitchen drain that smells
- Sinks that drain slowly
- Drains clogged with fat
For schools such as Harris Westminster Sixth Form, deep cleans and grease trap work are usually booked for the holidays.
Comparing quotes
- Whether they’re fully insured
- What’s included in the scope, part by part
- Whether a survey comes first
- What paperwork you get at the end
Grease trap cleaning in Westminster
Grease is behind most blocked kitchen drains. Down the line, they can add to fatbergs in the sewer. A grease trap that is emptied and cleaned regularly keeps them out of the drains. Common call-outs are for a grease trap that hasn’t been emptied in a long time and an under-sink trap that keeps filling up, on pot wash sinks, restaurants and takeaways and school and care home kitchens.
London kitchens work hard in small spaces, so grease collects behind equipment, on ceilings and in drains and grease traps. For a kitchen in Westminster, the work is normally done overnight, between the last service and the first.
Good records are part of the job. Each visit is written up with photos, covering the work done, any areas we couldn’t access and a recommended next date. Keep it with your fire safety records so it’s to hand when an insurer or inspector asks.
- Place
- Westminster (SW1P, W1J, SW1V)
- Region
- Greater London
- Reporting
- Report and photos after the visit
- Quote
- A fixed quote up front
- When we work
- When your site is closed, plus a 24/7 line
- Phone
- 0345 646 2711
- Last updated
- 30 October 2026
Part by part
Restaurant and takeaway kitchens
A blocked drain in a busy kitchen can stop service. Regular trap cleaning helps prevent it.
Grease interceptors
Interceptors separate grease the same way, on a larger scale. Cooling water lets grease rise and solids settle.
How it works
We turn up at the time agreed with you, often in the evening, overnight or at the weekend so the site keeps working. Anything that needs to be off for the work is switched off and left to cool first, and floors and nearby surfaces are sheeted. The work itself takes anything from under an hour to a few hours, depending on the trap. For a job in Westminster, tell us about loading bays, permits, lifts and roof access when you book.
- First, we find the trap and look at its connections.
- Sinks feeding the trap are taken out of use.
- Grease and solids are removed from the trap.
- We clean every part of the inside.
- We refit it, run water through and remove the waste.
Getting ready for the visit
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
- Tell us the best time to work, such as after service or at a weekend
- Clear the space around the work
How to get a quote
Quotes are quick. Send a few details and pictures, and we typically reply with a fixed quote within one working day. If we need to see the system first, we book a survey around your hours.
Read more
What else we do in Westminster
Westminster: your questions answered
Which council inspects kitchens in Westminster?
In Westminster, it’s Westminster council that carries out food hygiene inspections. Photos from a deep clean are a simple record of what was done and when.
Do you work in school kitchens around Westminster out of term?
Yes. The holidays are the usual time for school work. There are about 85 schools, colleges and universities on the FSA’s food hygiene register within about 1.5 miles of Westminster. Send us your term dates when you call us on 0345 646 2711 or send us an email, and we will fit the work in.
Do you survey before quoting?
Yes. For many sites, photos and a few details are enough, while bigger or harder-to-see systems are surveyed on site.
Which accreditations do you hold?
Duct Doctor is a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 are in place too, and we carry full insurance.
Do you have a 24/7 line?
Yes. For anything urgent, such as a fan failure or damage after a fire, ring the 24/7 line and we’ll talk you through the next steps.
Do you provide a certificate or report?
Yes. It’s the record insurers and inspectors ask to see: a written, dated record with pictures of what we did and anything we couldn’t access.
How regularly does a grease trap need emptying?
That depends on the trap and the kitchen. A small trap fills more quickly than a large one and the busier the kitchen, the faster it fills. We will suggest an interval after the first clean.
Do you cover Westminster?
Yes. Our technicians work in Westminster, as part of our area across London and the South East.
In-house cleaning or a specialist?
A few tasks are always specialist work: opening up ductwork, cleaning fans, drop testing fire dampers and measuring grease call for the right kit, training and safe access. That’s our job.
In-house cleaning and specialist cleaning do different jobs. A daily filter wipe and a weekly filter wash keep grease down at the front of the system, but they do not reach the grease that builds up further in. Reaching it takes a specialist with the right equipment.
Fixed quotes for grease trap cleaning in Westminster
The diagnosis comes before the price. We look at:
- The condition of the system
- Any permits to work or inductions
- The times the site is available
- Whether several sites go on one quote
Leaving it longer rarely makes the work cheaper. Build-up, wear and faults tend to get worse, not better, which can make the next visit longer. If you’re not sure what’s needed, call us on 0345 646 2711 or email us for straight advice and a fixed quote.
Helping us quote
We can often survey from pictures. Try to include:
- Your opening hours and when the area is out of use
- The roof, plant room or outside wall the system runs to
- A few general shots of the system
- Any previous report or certificate
To help us quote: the address, the type of site and when it’s open, pictures of the system and the last certificate or report, if there is one. Once you have those, call 0345 646 2711 or drop us a line.
What grease trap cleaning looks like in Westminster
The FSA’s data shows about 260 pubs, bars and clubs and about 187 hotels and guest houses registered within 1.5 miles or so of the middle of Westminster. Where they run a kitchen, it needs the same deep cleaning and grease trap care as any restaurant. In Westminster, food businesses are inspected by environmental health officers from Westminster council. Grease behind equipment or on a ceiling is the kind of thing an inspection can note. Having the dates of the last deep clean to hand saves digging for them on the day. Fat from London kitchens contributes to sewer blockages, which is why grease traps need emptying on a schedule.
Hall kitchens near Christ Church or elsewhere in Westminster may have older sinks and drains, so a grease trap check is worth adding to a deep clean. Healthcare kitchens, like those at hospitals such as Westminster Hospital (about less than half a mile east), cook for long hours, so deep cleans and grease trap work are planned around patients’ meals.
Westminster is about 1 mile south-east of City of Westminster, in Greater London. Whatever kind of site you run in Westminster, we can take on grease trap cleaning. Visits can be booked for evenings, overnight or weekends so the site keeps running. Our Greater London coverage runs to 764 places, and Westminster is one of them.
Our technicians cover all of SW1P, W1J and SW1V for grease trap cleaning and the streets around it. If you need grease trap cleaning at premises on Eaton Lane, Wilton Road and Castle Lane or anywhere close by, we can help. Westminster is on the A4 and A202, which makes it straightforward for our technicians to reach for grease trap cleaning. Neighbouring places we cover for grease trap cleaning include Millbank (1 mile north), Victoria (1 mile south-west), Pimlico (1 mile south), Vauxhall (1 mile south-east) and Lambeth (1 mile south-east). Larger places within reach include Kensington (3 miles west), Shoreditch (3 miles north-east), Walthamstow (8 miles north-east), Hoxton (3 miles north-east), Whitechapel (3 miles north-east) and Hampstead (4 miles north-west).
Near you in Westminster
Typical jobs here are in premises near St Matthew's School, St James's Park and Blewcoat School, among other places. You’ll also find London Library (0.6 miles north) and Grafton Arms (less than half a mile south). For rail, the closest station is London Victoria station, roughly 0.6 miles south-west of the centre. A little further out are Westminster Hospital (under half a mile east) and The Crime Museum (within half a mile south). Green spaces nearby include Barnsbury Wood and St. James's Park Lake.
Between visits
Results last longer with the right care. We suggest:
- Keep access to the trap clear
- Mention any increase in cooking
- Keep the grease trap on a regular cleaning schedule
- Use strainers in the sink plugholes
You’ll get our view on how often the trap needs cleaning. That depends on how quickly it filled and how busy the kitchen is.
A fixed cleaning interval means the trap never gets overfull. The interval is set to suit the trap and the kitchen.
What grease trap cleaning can’t fix
A few issues sit outside what this work can do:
- Blockages in the public sewer beyond the property
- Plumbing leaks around the sink
- Collapsed or damaged drains, which need a drainage contractor
If you are not sure, just ring 0345 646 2711, or send details by email and we’ll give you a straight answer.
Parts of the system we cover
- Under-sink grease traps
- Restaurants and takeaways
- Pot wash sinks
- Inline grease traps
- School and care home kitchens
- Kitchen waste pipes