Hertfordshire · Grease trap cleaning
Grease Trap Cleaning in Welwyn
Grease trap cleaning in Welwyn from ventilation hygiene specialists trading since 2009. Out-of-hours visits and 24/7 emergency callout.
- Gurgling from the sink waste
- An overdue grease trap
- An inline trap or interceptor due for cleaning
What we do, step by step
We work around your opening hours, not the other way round. We book the visit for a time the area is closed, whether that’s an evening, overnight or a weekend. Once we are in, the area is sheeted and anything that has to be off is turned off and cooled, and the job takes less than an hour for many under-sink units. Your opening hours decide when we come to Welwyn, not ours.
- We locate the trap and check how it’s fitted.
- We make sure nothing drains into the trap.
- Grease and solids are removed from the trap.
- The chambers and baffles are cleaned.
- We refit it, run water through and remove the waste.
How to prepare
- Tell us where we can park and unload
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
- Clear loose items from the work area
Getting a quote
If you need grease trap cleaning in Welwyn, give us a ring on 0345 646 2711 or use the quote form. Let us know the site type and the opening hours, and send pictures or your last report if you can. A fixed quote typically follows within one working day.
Related advice
How we handle grease trap cleaning in Welwyn
Fats, oils and grease are the main cause of blocked kitchen drains. Further on, grease can build into fatbergs in the sewer. A well-maintained trap keeps them out of the drains. The work covers under-sink grease traps, kitchen waste pipes and inline grease traps, and people most often call us about a larger grease trap that needs emptying and an under-sink trap that keeps filling up.
Kitchens around a smaller place like Welwyn are often in older buildings, with drains and grease traps that have been there for years. A blocked drain or a smelly grease trap is usually the first sign.
The paperwork matters as much as the work. Each visit is written up with photos, listing what was done, anything we couldn’t reach and when the next visit is due. Keep it with your fire safety records so it’s ready for an insurer, fire officer or EHO.
- Location
- Welwyn (AL6)
- Wider area
- Hertfordshire
- Records
- Photo report after each visit
- Price
- A fixed quote up front
- Working hours
- Out of hours as standard, 24/7 emergency line
- Phone
- 0345 646 2711
- Checked
- 30 October 2026
Aftercare tips
To keep the system working properly between visits:
- Keep access to the trap clear
- Avoid pouring boiling water down to shift grease
- Scrape plates and pans into the bin before washing up
- Act on gurgling or smelly drains
We’ll suggest when the trap should be cleaned again. That depends on how quickly it filled and how much the kitchen cooks.
More cooking means more grease in the trap. Booking cleans more often stops it overflowing.
Welwyn: your questions answered
Do you clean school kitchens in Welwyn in the summer holidays?
Yes. The holidays are the usual time for school work. Food Standards Agency records list about 11 schools, colleges and universities with registered kitchens within about a mile and a half of Welwyn. Tell us your holiday dates and we will book the visit for when the site is empty.
Will you come out to Welwyn?
Yes, we work in villages as well as towns, and Welwyn is covered. Photos of the system and directions to the site help us plan the visit.
Are you insured?
Yes. Full insurance covers our work and have been trading since 2009.
How much time does a grease trap clean need?
Typically, it takes less than an hour for many under-sink units. Bigger or overdue traps need more time, and we will tell you in advance.
What does TR19 mean?
A BESA specification in two main parts: TR19® Grease for kitchen extract systems and TR19® Air for general ventilation. It is not law, but it’s the benchmark.
Do you clean under-sink and inline grease traps?
Under-sink and inline grease traps, and larger interceptors. Each one is emptied, cleaned and checked in the same careful way.
Do the sinks have to be out of use during the clean?
While we work, those sinks are out of use. It takes an hour or two in most kitchens, depending on the size and condition of the trap, and we time it to suit you.
Where does the waste go?
Anything we remove is contained as we work and taken away with us, including grease, debris and dirty water. None of it is left on site.
When something else is needed
An honest diagnosis matters more to us than a booking, so here’s what this work can’t put right:
- Grease deep in the drains, which needs jetting by a drainage contractor
- A grease trap that is too small for the kitchen
- A leaking sink waste or trap connection
Not sure which it is? You can call us on 0345 646 2711, or send details by email and we’ll tell you honestly.
What the work covers
- Under-sink grease traps
- Inline grease traps
- Kitchen waste pipes
- Pot wash sinks
- Restaurants and takeaways
- School and care home kitchens
Grease trap cleaning in Welwyn: local notes
The Food Standards Agency lists about 11 bars, pubs and nightclubs as registered food businesses within about 1.5 miles of central Welwyn. Wherever they cook, the kitchen and its drains need the same attention as a restaurant’s. Food hygiene inspections in Welwyn are the job of Welwyn Hatfield council’s environmental health team. Walls, floors, ceilings and equipment are all part of what they look at. Photos and dates from each deep clean make a useful record.
If you look after a school kitchen, at a school such as Monk's Walk School or anywhere near Welwyn, the holidays are the time for a deep clean or a grease trap clean. Digswell House, about 0.9 miles south-east, is one of the historic houses around Welwyn; event kitchens at places like that work in bursts, so a deep clean after a busy season helps.
Welwyn is about 2 miles north-west of Welwyn Garden City, in Hertfordshire. Whether your site is in the middle of Welwyn or further out, grease trap cleaning is available to all kinds of commercial premises, from a single unit to a large public building. Across Hertfordshire, we cover 381 places, Welwyn among them. We also work in London, around 23 miles away.
We work across AL6 for grease trap cleaning and the streets around it. That includes premises on High Street, London Road and Mimram Place and the roads around them. Other places close to Welwyn include Monkswood (1 mile south-east), Ayot St Peter (1 mile south-west), Ayot Green (1 mile south-west), Pottersheath (2 miles north) and Codicote (2 miles north-west). We also work in nearby towns such as Watford (14 miles south-west), Hemel Hempstead (12 miles south-west), Stevenage (6 miles north), St Albans (7 miles south-west), Harpenden (6 miles west) and Hitchin (9 miles north).
Landmarks near Welwyn
Locally, jobs take us to businesses close to Stable Door pub, Danesbury Park and Homerswood Primary and Nursery School and the streets around them. The closest station to Welwyn is Welwyn North station, about 1.1 miles south-east of the centre. Nearby you’ll also find Queen Elizabeth II Hospital (3.5 miles south) and Datchworth Museum (2.7 miles north-east). Open spaces near Welwyn include Mardley Heath.
What we are called out for in Welwyn
Food waste slips past sink strainers or gets rinsed down. Solids settle at the bottom of the trap and takes up space.
Most sites get in touch after spotting one of these:
- A routine grease trap service
- Drains that gurgle and bubble
- Sinks that drain slowly
- A small trap that fills too quickly
Healthcare kitchens cook through the year, so a deep clean has to be fitted around meals; Queen Elizabeth II Hospital, about 3.5 miles south, is the nearest hospital to Welwyn.
Questions to ask before you book
- Whether the price is fixed
- When they can work, and whether that’s outside your opening hours
- Whether the quote is based on a survey or pictures
- Whether they recommend a next date
What staff can safely do
In-house cleaning and specialist cleaning do different jobs. Wiping filters daily and washing them weekly keeps the visible parts in order, but they don’t reach the grease that builds up further in. That part needs specialist access and equipment.
Staff cleaning doesn’t replace a specialist visit; it supports it. Clean filters and tidy surfaces slow the build-up, but the parts you can’t see still need a specialist at the right interval.
Different parts, different methods
Restaurant and takeaway kitchens
Busy kitchens cannot afford a blocked drain. Keeping the trap clean reduces the risk.
School, care home and staff kitchens
Care home and hospital kitchens need their drains working all the time. Visits are planned between meals.
What affects the cost of grease trap cleaning
Every site gets its own quote. This is what makes a difference:
- How easy every part is to reach
- Whether it’s a one-off visit or part of a schedule
- Site rules, permits and inductions
- When the work can happen, such as evenings, overnight or weekends
Working hours, access and the scale of the site can all change the price. We take each of them into account, and the price is fixed before any work starts.
What we need to know
The more you tell us, the more accurate the quote. With your enquiry, please include:
- Close-ups of filters, grilles, hatches or access panels
- Anything you’ve noticed, such as smells, noise, drips or poor airflow
- When the site is open and when it’s quiet
- The roof, plant room or outside wall the system runs to
Quoting starts with a diagnosis, either from photos and details you send or from a site visit. Then we send a fixed price, before we start.