Hertfordshire · Kitchen extract cleaning
Kitchen extraction cleaning in Knebworth
We cover Knebworth for kitchen extract cleaning. Fixed quotes, work around your opening hours and photo reports as standard.
- A new tenancy or takeover with no cleaning history
- Proof of cleaning requested by an insurer
- Fat running down the canopy edge
Kitchen extract cleaning in Knebworth
Few kitchens can stop cooking for a day so the extract can be cleaned. We work evenings, overnight and at weekends, or between services where the kitchen has a gap. Equipment is switched off and left to cool, the area is sheeted, and the kitchen is handed back ready to cook. If you are dealing with fat running down the canopy edge and a kitchen taken over without any extract records, we can help, from plenums and filters, canopies and hoods and extract fans onwards. Whether you call it kitchen extract cleaning, TR19 cleaning or kitchen duct cleaning, in Knebworth it means the same thing to us: the whole system, cleaned and certificated.
We clean every reachable part of the system in Knebworth: canopy, plenum, filters, ducts, risers and fan, and the discharge where it can be reached.
Around a smaller place like Knebworth, kitchen extracts tend to belong to pubs, cafés, takeaways and school or care home kitchens. Quieter kitchens still collect grease in the duct, just more slowly, so cleaning is planned around how much it cooks and what the readings show.
Nothing is signed off by word of mouth: a dated report with pictures of the work, and for TR19® Grease cleans, a certificate issued through the BESCA VHE portal. Any parts we couldn’t reach are recorded on it too.
- Location
- Knebworth (SG3)
- Region
- Hertfordshire
- Records
- Certificate and photo report
- Quotes
- A fixed quote up front
- When we work
- After hours by arrangement; emergencies any time
- Telephone
- 0345 646 2711
- Checked
- 30 October 2026
How we price kitchen extract cleaning
There’s no set price list, because sites vary so much. What we look at:
- Whether it’s a one-off visit or part of a schedule
- Whether several sites go on one quote
- The condition we find in the survey
- The scale of the work
One small site or a whole estate, the quote is built the same way: the work involved, the access and the timing. The price is fixed before we start.
Asking for a quote
Many jobs can be priced from photos and some basics. Send what you can of the following:
- The paperwork from the last visit, if you have it
- The postcode and the type of business
- Your opening hours and when the area is out of use
- The roof, plant room or outside wall the system runs to
To help us quote: the address, the type of site and when it’s open, pictures of the system and any previous report or certificate. Then phone us on 0345 646 2711, or email photos.
Multi-site and managed buildings
We regularly work with managing agents. Send the address, what’s needed and how access works, and we’ll send a fixed quote.
When the building owner and the occupier are different, the lease normally sets out who maintains what. We’re happy to deal with either side and send the paperwork to whoever needs it.
The process
Night work is normal for us. A lot of visits happen overnight or at weekends, so the site can open as normal afterwards. On site, the work takes anything from a few hours to a full night, depending on the size of the system. For a site near Knebworth, the work is booked around your opening hours, evenings and weekends included.
- We survey the system first, from your photos and details or on a site visit.
- Set points are tested for grease thickness and the quote is fixed before we start.
- On the day, cooking equipment is switched off and left to cool, and everything nearby is sheeted.
- The whole route is cleaned, from the canopy through the ductwork to the fan and the discharge.
- Readings and pictures are taken again, and you receive a TR19 certificate and photo report.
How to prepare
- Make sure equipment near the work can be switched off and left to cool
- Move anything stored near the system
- Let us know about permits to work or site inductions
How to get a quote
Photos are enough for some jobs, while others need a look on site. Big or complicated sites, and systems that are hard to see in photos, get a survey first. Either way, you get a fixed price before any work starts.
Related advice
Kitchen extract cleaning in Knebworth: the local picture
The Food Standards Agency lists about 14 bars, pubs and nightclubs as registered food businesses in and around Knebworth, up to about a mile and a half out. Wherever they cook, the canopy, duct and fan collect grease just as a restaurant’s do. In Knebworth, food businesses are inspected by environmental health officers from North Hertfordshire council. The cleanliness of the kitchen and its equipment, extraction included, is part of what they check. Before-and-after photos from each clean are a simple way to show the extract is in hand. The fire and rescue service for Knebworth is Hertfordshire Fire and Rescue Service. The Fire Safety Order puts the duty on whoever runs a kitchen to control its fire risk, and a greasy duct is fuel.
If you run catering at a healthcare site, such as a hospital like Lister Hospital about 4.2 miles north, the extract may need cleaning more often than a part-time kitchen. For kitchens close to Knebworth station, where the day often starts early and ends late, the extract can be cleaned overnight.
Knebworth is about 3 miles south of Stevenage, in Hertfordshire. For kitchen extract cleaning in and around Knebworth, please call us on 0345 646 2711 or use the quote form for a fixed quote. Our area covers London and the South East, Knebworth included. Our area takes in 381 places across Hertfordshire, large and small. London is in our area too, about 26 miles from Knebworth.
Kitchen extract cleaning in SG3 follows the same survey, fixed quote and written report as everywhere else we cover. Streets in the area include London Road, Deanscroft and Lytton Fields, all of which we cover for kitchen extract cleaning. If your site is just outside Knebworth, we cover Woolmer Green (1 mile south), Bragbury End (1 mile north-east), Oaklands (2 miles south), Datchworth (2 miles south-east) and Shephall (2 miles north). Larger places within reach include Hemel Hempstead (14 miles south-west), Stevenage (3 miles north), St Albans (10 miles south-west), Bishop's Stortford (15 miles east), Welwyn Garden City (5 miles south) and Harpenden (8 miles south-west).
Local landmarks in Knebworth
We work in commercial kitchens and buildings around Barnwell School and Knebworth Park. There’s a railway station in Knebworth itself: Knebworth station. Other landmarks nearby include Benington Castle (3.6 miles north-east) and Datchworth Museum (1.7 miles south-east). For a walk, there’s Mardley Heath.
Common problems we fix in Knebworth
In Knebworth, as anywhere, grease gathers where the air slows down: long horizontal runs, bends, the base of risers and around the fan. The cooler the duct, the more grease drops out of the air.
Keep an eye out for any of the following:
- Cleaning needed before an insurance renewal or survey
- Extraction mentioned at an environmental health visit
- An extract that no longer clears the smoke
- Fat running down the canopy edge
For schools such as Knebworth Primary and Nursery School, kitchen extract cleaning is normally booked for the holidays, when the canteen is closed.
Questions to ask before you book
- Whether they recommend a next date
- Whether the price is fixed
- Proof of accreditation you can verify
- Whether a written report and photos are included
Places near Knebworth
Also in Knebworth
Questions from Knebworth
Do you work overnight in Knebworth?
Yes, evening, overnight and weekend work is normal for us. That way a site in Knebworth doesn’t have to lose a day’s trading. When you phone us on 0345 646 2711 or send us an email, mention when the site is quiet.
Do you cover smaller places like Knebworth?
Yes, smaller places are covered as well as towns. A survey first, from pictures or a visit, means we arrive with the right kit.
How much notice do you need?
Earlier is better, especially for out-of-hours work. We typically quote within one working day, and there’s a 24/7 line for emergencies.
Is there a survey before the work?
Yes. For many sites, photos and a few details are enough, while bigger or harder-to-see systems are surveyed on site.
What about areas you cannot get to?
We record them on the report, with a note of where it is, and we explain what access is needed, such as extra access panels in ductwork.
Do insurers need proof of extract cleaning?
Grease in an extract is a known fire risk, which is why many insurers require TR19 cleaning. Each clean gives you a certificate and photo report to show them.
How do you protect the area?
We cover floors and nearby surfaces with sheeting before we start, and anything we remove is contained. At the end, the area is cleaned down.
Can you price the work without visiting?
Yes, if we can see what we need. If not, a site survey comes first, and the quote follows that.
Part by part
Ductwork and risers
Horizontal runs collect grease as the air slows and cools. Each run is cleaned through its access panels, recording any that can’t be reached.
Canopy and plenum
Canopies vary from a single hood to long runs over several appliances, every section is cleaned and recorded in the photo report before and after.
Aftercare tips
Think of this as the after-treatment advice, short and simple:
- Keep to the recommended cleaning interval
- Switch the fan on before cooking starts
- Clean grease off the canopy surfaces regularly
- Wash or exchange the filters often
A TR19 certificate notes the date, the location and the technician. File it with the fire risk assessment and the maintenance log so it’s ready when anyone asks to see it.
Book the next clean before the last one runs out. If the kitchen starts cooking longer hours, the interval should be looked at again, and grease readings will show it.
When it’s something else
Before you book, it helps to know what’s not included:
- A damper that sticks or has a damaged link
- Extraction that cannot cope with the cooking because of its design
- A duct that’s holed or coming apart
If you are not sure, just phone us on 0345 646 2711 or email us and we will give you a straight answer before booking.
What we work on in Knebworth
- Canopies and hoods
- Horizontal duct runs
- Plenums and filters
- Extract fans
- Vertical risers
- Discharge points