Hertfordshire · Kitchen extract cleaning
Kitchen extract cleaning in Nup End Green, Hertfordshire
For kitchen extract cleaning in Nup End Green, one call is all it takes, from survey to sign-off. Fully insured, with CHAS, SafeContractor and ISO 9001.
- Grease smells coming from the extract
- A TR19 certificate needed for the insurer
- An inspection that picked up a dirty extract
Commercial kitchen extraction cleaning in Nup End Green
The canopy over the range is only the start of a kitchen extract system. Beyond the filters run the plenum, the ducts and risers, the fan and the point where air leaves the building, and grease settles in every one of them. A TR19® Grease clean deals with the whole route, not only the parts on show. If you’re dealing with ductwork thick with old, hardened grease and rancid smells from grease in the duct, we can help, from vertical risers, horizontal duct runs and discharge points onwards. If you need a kitchen extract clean in Nup End Green, one call covers the survey, the clean and the paperwork.
We clean every reachable part of the system in Nup End Green: canopy, plenum, filters, ducts, risers and fan, then record anything that couldn’t be reached.
In a village or hamlet like Nup End Green, the kitchens that need extract cleaning are usually a pub, a school, a care home or a hall kitchen, wherever there is one. Every one of them still needs its extract kept clear of grease.
Duct Doctor has been trading since 2009, and we are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we carry full insurance.
- Place
- Nup End Green (SG3)
- Region
- Hertfordshire
- Reporting
- Certificate plus before-and-after photos
- Price
- A fixed quote up front
- Working hours
- After hours by arrangement; emergencies any time
- Call
- 0345 646 2711
- Last updated
- 30 October 2026
Staff cleaning versus specialist work
Staff cleaning and specialist work aren’t the same thing. A daily filter wipe and a weekly filter wash keep grease down at the front of the system, but grease that has passed the filters is out of reach. That part needs specialist access and equipment.
Your own staff can handle the daily basics: wiping canopies, washing grease filters and recording it in a log. What they can’t safely do is clean inside the ductwork, the fan or the risers, and that’s where we come in.
The process
There’s very little for your team to do on the day. Someone lets us in at the agreed time and shows us where everything is, and the rest is down to us. Before we leave, the area is tidied and the paperwork follows. Somewhere like Nup End Green, lanes, gates and parking are worth mentioning in advance.
- You send photos or we visit, and the system is surveyed from canopy to discharge.
- We take grease readings at set points and give you a fixed quote.
- The kitchen is closed, the equipment cooled and everything nearby protected.
- We work through the system from the canopy to the fan and discharge.
- We re-test, photograph and send your certificate and photo report.
How to prepare
- Tell us where we can park and unload
- Arrange a key holder or contact on site
- Let us know when the site is closed or quiet
Getting a quote
Some systems can be priced from photos; others need a survey. Larger sites, and anything hidden behind walls, ceilings or floors, are normally surveyed first. Either way, you get a fixed price before any work starts.
Advice
What affects the quote in Nup End Green
Sites vary more than people expect. The main factors:
- How big the system is
- Any permits to work or inductions
- Access, including roofs, risers and ceiling voids
- The number of sites or systems
Working hours, access and the scale of the site all affect the cost. We take each of them into account and give you a fixed price before we start.
Asking for a quote
When you call or email, it’s useful to have:
- Close-ups of filters, grilles, hatches or access panels
- Any symptoms, from odd noises to smells or leaks
- The postcode and the type of business
- The times we could work without disrupting the site
Getting a quote doesn’t take long. Send a few details and pictures, and we normally reply with a fixed quote within one working day. Where a survey is needed, we arrange a time that suits the site.
For landlords and multi-site operators
We regularly work with managing agents. Tell us the site, the work and the access arrangements, and we’ll send a fixed quote.
Whether it’s one building or many, the standard is the same: diagnosis, a fixed price, work booked around your hours and a written report with pictures.
What kitchen extract cleaning looks like in Nup End Green
The FSA’s food hygiene register shows about 3 restaurants, cafés and works canteens within 1.5 miles or so of the middle of Nup End Green. Each one that cooks under a canopy has an extract system that collects grease and needs regular cleaning. Nup End Green sits within the area of Hertfordshire Fire and Rescue Service. Its fire safety officers can audit commercial kitchens, and grease in the extract is part of a kitchen’s fire risk. In Nup End Green, food businesses are inspected by environmental health officers from North Hertfordshire council. An officer looking round a kitchen will see the canopy, and grease there is hard to miss. Keeping each certificate and photo report on file helps show the extract is looked after.
Volunteers running a hall kitchen near Church of St Mary and St Thomas, or anywhere in Nup End Green, may not know when the extract was last cleaned, and a grease test settles it. Healthcare kitchens can’t easily close, so their extracts are cleaned overnight or between meal services; the nearest hospital to Nup End Green is Lister Hospital, about 4.1 miles north.
Nup End Green is about 3 miles south-west of Stevenage, in Hertfordshire. Every kind of commercial site in Nup End Green, kitchen extract cleaning is something we can help with. Visits can be booked for evenings, overnight or weekends so trading isn’t interrupted. Our Hertfordshire coverage runs to 381 places, Nup End Green among them. There’s also a page for London, roughly 26 miles from Nup End Green.
We work across SG3 for kitchen extract cleaning and the roads nearby. Other places close to Nup End Green include Driver's End (1 mile west), Old Knebworth (1 mile north-east), Rableyheath (1 mile south-east), Pottersheath (1 mile south-east) and Codicote (1 mile south-west). We also work in nearby towns such as Hemel Hempstead (13 miles south-west), Stevenage (3 miles north-east), St Albans (9 miles south-west), Welwyn Garden City (5 miles south), Harpenden (6 miles south-west) and Hitchin (6 miles north).
Landmarks near Nup End Green
We work in commercial kitchens and buildings around Robin Hood And Little John Public House and Knebworth Park and the streets around them. The closest station to Nup End Green is Knebworth station, about 1.4 miles east. Nearby you will also find Benington Castle (4.9 miles north-east) and Lister Hospital (4.1 miles north). Not far away are Mardley Heath.
Towns and villages near Nup End Green
Also in Nup End Green
When something else is needed
We won’t sell you work that doesn’t address the problem, so here are the limits:
- A fan motor or bearings that have failed (that needs a fan repair or replacement)
- Extraction that cannot cope with the cooking because of its design
- Damaged duct sections that need replacing
If in doubt, call 0345 646 2711, or email photos and we will say what we think before booking.
Parts of the system we cover
- Discharge points
- Extract fans
- Horizontal duct runs
- Vertical risers
- Plenums and filters
- Canopies and hoods
Nup End Green questions
Who enforces fire safety at workplaces in Nup End Green?
Hertfordshire Fire and Rescue Service is the fire and rescue service for Nup End Green. It’s worth keeping your fire risk assessment, TR19® certificates and photo reports together, ready to show.
Will you come out to Nup End Green?
Yes, we work in villages as well as towns, and Nup End Green is covered. The journey is planned ahead, so a few details about the route help.
Which sectors do you work in?
Any commercial site with kitchens or ventilation, from a small pub to a hospital. We work with hotels, schools, care homes, offices, retail and leisure sites.
Do I have to clean my extract to TR19 by law?
TR19® is BESA’s specification, not legislation. The law is the Regulatory Reform (Fire Safety) Order 2005, which makes the responsible person assess and reduce fire risk, and cleaning to TR19 is the recognised way to show you’ve dealt with extract grease.
What should I send you?
Only a few details: the address, the site type, your opening hours and how we reach the system. Photos and any previous paperwork make it quicker. Then call 0345 646 2711 or email us.
What if parts of the system cannot be reached?
They’re marked on the report. In ductwork, new access panels are often the answer, and we can fit those.
How long does a kitchen extract clean take?
A small kitchen with a short duct can be done in a few hours, while long runs and tall risers take longer and may need more than one visit. Your quote says how long to expect.
Is there a survey before the work?
Yes, every time. We diagnose before we treat: the survey tells us what the system needs and how to reach it, and the quote is based on that.
What we are called out for in Nup End Green
In Nup End Green, as anywhere, grease gathers where the air slows down: in long flat runs, at bends and changes of direction, and in the fan housing. Cooler sections of duct collect the most.
Any of these means the system needs a check-up:
- An extract that has never been cleaned to TR19
- Extraction mentioned at an environmental health visit
- A TR19 certificate needed for the insurer
- Rancid smells from grease in the duct
Historic houses near Nup End Green, such as Knebworth House about 0.6 miles north-east, are a reminder that older buildings with event kitchens can have long, awkward duct routes.
What your quote should include
- If they look at the system before pricing
- Whether they recommend a next date
- What happens if part of the system can’t be accessed
- Proof of insurance
How the job changes from site to site
Schools, hospitals and care homes
Some healthcare kitchens never fully close. Cleans are planned between meals or overnight with as little disruption as possible.
Extract fan and discharge
Grease that reaches the fan coats the blades and the housing. It’s isolated, opened and cleaned as part of the TR19 clean.