Hertfordshire · Ductwork cleaning
Duct cleaning in Codicote
Ductwork cleaning in Codicote from ventilation hygiene specialists trading since 2009. Evenings, overnight and weekends, plus a 24/7 emergency line.
- Grease pooling at the foot of the riser
- Duct runs that can’t be reached
- Stale grease odours from the duct
For landlords and multi-site operators
Records are where multi-site compliance often slips. Each visit ends with a dated report and pictures, so you can show an insurer or inspector what was done at each site.
Multi-site operators often want one contractor and one number. We cover South East England and London, so a run of sites can go into one programme and kept to a regular schedule.
Ductwork cleaning in Codicote
Once air leaves the canopy, it travels through ductwork that most people never see. Every horizontal run and vertical riser collects grease along the way, and that is where a kitchen fire can travel. We clean it from the inside, through access panels, to BESA TR19® Grease. The work covers bends and junctions, multi-storey ducts and access panels, and common reasons people get in touch are smells of old cooking grease from the ductwork and fat dripping from the ductwork.
Around a smaller place like Codicote, kitchen extracts tend to belong to pubs, cafés, takeaways and school or care home kitchens. A kitchen that cooks fewer hours still builds up grease, so the interval is set by hours of use and grease readings.
We have been trading since 2009, as a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we are fully insured.
- Where
- Codicote (SG4)
- Wider area
- Hertfordshire
- Records
- TR19® certificate and photo report
- Quote
- A fixed quote up front
- When we work
- Evenings, overnight and weekends; 24/7 emergencies
- Telephone
- 0345 646 2711
- Last updated
- 30 October 2026
What ductwork cleaning looks like in Codicote
The FSA’s data shows about 3 pubs, bars and clubs registered within roughly a mile and a half of the centre of Codicote. Wherever they cook, the canopy, duct and fan collect grease just as a restaurant’s do. Food hygiene inspections in Codicote are the job of North Hertfordshire council’s environmental health team. An officer looking round a kitchen will see the canopy, and grease there is hard to miss. Before-and-after photos from each clean are a simple way to show the extract is in hand. Hertfordshire Fire and Rescue Service covers Codicote. Fire and rescue authorities enforce the Fire Safety Order in most non-domestic premises, and in a kitchen that fire risk includes the grease in the extract.
Healthcare kitchens can’t easily close, so their extracts are cleaned overnight or between meal services; the nearest hospital to Codicote is Queen Elizabeth II Hospital, about 5 miles south-east. Bursars and site managers at schools such as Codicote Church of England Primary School tend to book extract cleaning for when the kitchen is empty.
Codicote is about 4 miles north-west of Welwyn Garden City, in Hertfordshire. Whether your site is in the middle of Codicote or further out, we cover ductwork cleaning for every kind of premises, from a single unit to a large public building. Across Hertfordshire, we cover 381 places, and Codicote is one of them. There’s also a page for London, about 25 miles away.
Postcode districts we cover here for ductwork cleaning: SG4. Ductwork cleaning is available to premises on High Street, Baker's Lane and The Green and the roads around them. We also cover the places around Codicote: Codicote Bottom (1 mile west), Driver's End (1 mile north), Nup End Green (1 mile north-east), Pottersheath (1 mile east) and Ayot St Lawrence (1 mile south-west). Larger places within reach include Watford (15 miles south-west), Hemel Hempstead (12 miles south-west), Stevenage (5 miles north-east), St Albans (8 miles south-west), Welwyn Garden City (4 miles south-east) and Harpenden (5 miles south-west).
Local landmarks in Codicote
We work in commercial kitchens and buildings around The Goat Public House, Monk's Walk School and Danesbury Park, among other places. The nearest railway station is Knebworth station, roughly 2.4 miles north-east of the centre. A little further out are Howard Centre (3.6 miles south) and Queen Elizabeth II Hospital (5 miles south-east). For a walk, there’s Mardley Heath.
Questions from Codicote
Which council inspects kitchens in Codicote?
The local authority for Codicote is North Hertfordshire council, and its environmental health team does the inspecting. Have your latest TR19® certificate and photo report to hand, as an officer may ask how the extract is maintained.
Do you clean school canteen extracts around Codicote out of term?
Yes. Half-terms and the summer break are the natural time for school work. The FSA’s register shows about 2 schools and colleges with food registrations within roughly a mile and a half of Codicote. Tell us your holiday dates and we’ll book the visit for when the site is empty.
What do you do with what you remove?
Waste is contained during the work and removed when we leave, including grease, debris and dirty water. None of it is left on site.
Is Codicote in your area?
Yes. Codicote is part of the area we cover, as part of our area across London and the South East.
How do you know if the ductwork needs cleaning?
Drips, smells and weak extraction are clues, but the only sure way is to measure. Grease thickness testing shows exactly where the duct stands.
Are you accredited?
BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease, plus CHAS, SafeContractor and ISO 9001. We’ve been trading since 2009 and we are fully insured.
What if parts of the system can’t be reached?
They’re marked on the report. Often the fix is extra access, such as new panels in ductwork, and we can fit those.
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.
Also near Codicote
Also in Codicote
In-house cleaning or a specialist?
If your staff spot something between visits, such as dripping grease, a noisy fan, a smell or a filter that will not come clean, it’s best reported rather than tackled in-house. We will take a look and give you a fixed quote.
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 don’t reach the grease that builds up further in. That part needs specialist access and equipment.
Signs you need ductwork cleaning in Codicote
Damaged or poorly fitted filters let more grease into the duct. The duct then takes grease that the filters should have stopped, and build-up speeds up.
It’s time to book a visit if you see:
- A duct nobody has opened in years
- Years of grease along the duct floor
- A rancid smell from the extract duct
- Sections of duct with no access panels
Historic houses near Codicote, such as Shaw's Corner about 1.7 miles south-west, are a reminder that older buildings with event kitchens can have long, awkward duct routes.
Questions to ask before booking
- Whether a survey comes first
- When the next visit should be, and why
- Proof of insurance
- Whether the whole system is included, or only the parts that are easy to reach
Looking after it afterwards
Simple habits between visits make a real difference. We recommend:
- Tell us if grease leaks from the ductwork
- File each certificate and photo report in the maintenance log
- Consider fitting panels where the report shows gaps
- Keep the fan on while anything is cooking
Keep the certificate and report with the fire risk assessment. An insurer, fire officer or EHO may ask to see it, and the photos make the duct’s condition easy to see.
Extra access panels mean more of the duct gets cleaned each time. It doesn’t stop grease forming, but it stops it building unseen.
Leave it or put it right?
Insurers know the risk of a greasy duct. Many require cleaning to TR19, and they can refuse or reduce a claim without proof. A certificate that covers the ductwork is what they want to see. When a site near Codicote shuts unexpectedly, the people who rely on it notice at once.
The price reflects the work, not guesswork. That is why we survey first, from pictures or on site, and the price is agreed before any work starts.
Why book with us
- Out-of-hours work and a 24/7 emergency line
- Full insurance on every job
- Every job surveyed first
- A single point of contact for sites across the South East and London
Take a look at what affects the cost or our accreditations.
How it works
Your trading hours come first. We book the visit for a time the area is closed, whether that’s an evening, overnight or a weekend. When the team arrives, the work area is protected and the relevant equipment is switched off to cool, and the job takes anything from a few hours to several visits, depending on the length of duct. A site near Codicote normally has room to park, so the questions are about access to the system and your hours.
- First we diagnose: the route, the access and the grease levels.
- A fixed quote follows, based on what we found.
- Each section is cleaned in turn through its access panel.
- We take extra care at bends and at the foot of risers.
- The duct is signed off with readings, pictures and a next clean date.
Before we arrive
- Arrange a key holder or contact on site
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
- Move anything stored near the system
How to get a quote
We don’t publish a price list, because every site is different. We look at your system first, from photos or on a visit, and then send you a fixed quote. To get going, call us on 0345 646 2711 or email us.
Advice
What the work involves, part by part
Bends and transitions
A bend can hold far more grease than a straight run of the same length. It’s scraped out and degreased, and readings are taken there before and after.
Access panels
Extra panels can be installed where there are gaps, so the next clean reaches more of the system. The survey shows where they’re needed.