Hertfordshire · Kitchen extract cleaning
Kitchen extract cleaning in Codicote, Hertfordshire
We cover Codicote for kitchen extract cleaning. Fixed quotes, work around your opening hours and photo reports as standard.
- Ductwork thick with old, hardened grease
- A system with no record of a TR19 clean
- Rancid smells from grease in the duct
Kitchen duct cleaning in Codicote
Insurers often want evidence of regular TR19 cleaning, and some may refuse or reduce a claim when it’s missing. The certificate and photo report from each clean in Codicote give you that record for the maintenance log. If you’re dealing with ductwork thick with old, hardened grease and a TR19 certificate needed for the insurer, we can help, from discharge points, horizontal duct runs and vertical risers onwards. Whether you call it kitchen extract cleaning, TR19 cleaning or kitchen duct cleaning, it’s the job we do every week across Hertfordshire.
Before we clean, we look at where the grease is: wet film or deposit thickness readings show which parts of the duct need the most attention, and the same readings after the clean show the result.
In a smaller place like Codicote, many kitchens sit in older buildings or later extensions, where the duct may cross a roof void or climb an outside wall. Flat runs collect grease and need proper access to clean.
Nothing is signed off by word of mouth: a written report, dated and illustrated with photos, and for TR19® Grease cleans, a certificate issued through the BESCA VHE portal. Any parts we couldn’t reach are recorded on it too.
- Where
- Codicote (SG4)
- Region
- Hertfordshire
- Records
- Certificate plus before-and-after pictures
- Quote
- A fixed price before any work starts
- When we work
- When your site is closed, plus a 24/7 line
- Telephone
- 0345 646 2711
- Last updated
- 30 October 2026
How the visit works
We work around your opening hours, not the other way round. Most visits are booked for when the area is out of use, such as evenings, overnight, early mornings or weekends. Once we’re in, the area is sheeted and anything that has to be off is turned off and cooled, and the job takes a few hours for a small kitchen, longer for a large system. Tell us about any gates, ladders or locked plant areas at your site near Codicote when you book.
- First comes a survey of the whole system, by photos or a visit.
- Set points are tested for grease thickness and the quote is fixed before any work starts.
- Once the kitchen has closed and the equipment has cooled, we sheet and protect the area.
- We clean the canopy, plenum, filters, ducts, risers, fan and discharge.
- Readings and photos are taken again, and you receive a TR19 certificate and photo report.
Before we arrive
- Tell us the best time to work, such as after service or at a weekend
- Let us know about permits to work or site inductions
- Plan for cooking equipment or plant to be off before we arrive
Ask for a quote
If you need kitchen extract cleaning in Codicote, give us a ring on 0345 646 2711 or send us an email. Let us know the site type and the opening hours, plus pictures or the previous report if they’re to hand. We typically send a fixed quote within one working day.
Advice
How the job changes from site to site
Grease filters
A filter that’s missing or bent lets grease straight past. Each filter is checked as it goes back in, and flag any that don’t.
Ductwork and risers
Long flat runs of duct are where grease collects. Each run is cleaned through its access panels, recording any that can’t be reached.
Landlords, agents and facilities managers
Facilities teams in offices, schools and healthcare sites book us too across Hertfordshire. Larger estates can be phased building by building to keep disruption down.
Records are where multi-site compliance often slips. Each visit produces a dated report with photos, ready to show insurers, fire officers or EHOs.
What your team can do, and what needs us
Keep a record of what your team does. A dated log of in-house cleaning and checks helps show that the system is managed between specialist visits, next to our reports.
For ventilation and air handling systems, in-house care is mostly about checks: keeping grilles clear, noting unusual noise or smells and logging filter changes. The inside of ducts and units needs a specialist.
Grease, kitchens and Codicote
Look up Codicote on the FSA’s food hygiene register and you’ll find about 4 restaurants, cafés and works canteens within roughly a mile and a half of the centre of Codicote. Any of them cooking under a canopy is sending grease into its ductwork every service. Hertfordshire Fire and Rescue Service covers Codicote. Grease in a kitchen extract is a recognised fire risk, and the fire authority enforces the law on managing it in most commercial premises. Kitchens in Codicote get their food hygiene inspections from North Hertfordshire council. Extraction counts as kitchen equipment, so its condition can come up on the day. Before-and-after photos from each clean are a simple way to show the extract is in hand.
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. Where a hall near Parish Church of St Giles, or anywhere in Codicote, hosts lunch clubs or events, its extract gathers grease just as a café’s does.
Codicote is about 4 miles north-west of Welwyn Garden City, in Hertfordshire. Sites in Codicote get the same service as everywhere we cover: a survey first, a fixed quote, work timed around your hours and a report with pictures. Codicote is one of 381 places in Hertfordshire where we work for commercial clients. We also work in London, around 25 miles away.
Here we cover the SG4 postcode area for kitchen extract cleaning. Whether your site is on High Street, Baker's Lane and The Green or anywhere close by, our technicians can take on the work. Close by, we work in 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). Within a short drive, we also cover 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).
Landmarks near Codicote
Locally, jobs take us to businesses close to The Goat Public House, Monk's Walk School and Danesbury Park, among other places. Codicote’s nearest station is Knebworth station, about 2.4 miles north-east. Well-known places in the area include Howard Centre (3.6 miles south) and Queen Elizabeth II Hospital (5 miles south-east). Open spaces near Codicote include Mardley Heath.
Common problems we fix in Codicote
Hours of cooking are the biggest factor. BESA guidance sets minimum cleaning intervals of every 3 months for 12 to 16 hours a day, 6 months for 6 to 12 hours, and 12 months for 2 to 6 hours. Those are minimums, and grease readings can show a kitchen needs cleaning sooner.
It’s time to book a visit if you see:
- An extract that has never been cleaned to TR19
- Grease dripping from the canopy or filters
- Rancid smells from grease in the duct
- An overdue clean flagged by an EHO or fire officer
Older buildings often hide long, awkward duct runs, and if you run a kitchen at a historic venue in the area (Shaw's Corner is about 1.7 miles south-west), access may need planning.
Questions to ask before you book
- If they look at the system before pricing
- Whether the price is fixed
- What paperwork you get at the end
- Whether they recommend a next date
Why it’s worth doing now in Codicote
There’s no law that names TR19, but the Fire Safety Order 2005 still applies. It puts a duty on the responsible person to assess and reduce fire risk, and in a kitchen that means keeping extract grease under control. TR19 is the benchmark insurers, fire officers and EHOs look to. Systems on quieter sites still build up dirt and wear, just more slowly.
Every site is different, so we price each one individually. Size, access, the condition of the system and when we can work all make a difference.
Why choose Duct Doctor in Codicote
- Survey first, then a fixed quote
- We’re fully insured
- Work around your opening hours, with 24/7 emergency cover
- Fixed quotes, normally within one working day
Read what affects the cost or our accreditations and certificates.
Also near Codicote
Other services in Codicote
What kitchen extract cleaning cannot fix
It’s worth knowing the limits before booking:
- An undersized canopy or fan
- A damper that sticks or has a damaged link
- A broken extract fan that won’t run
If in doubt, give us a ring on 0345 646 2711, or email photos and we’ll say what we think before booking.
What we work on in Codicote
- Plenums and filters
- Extract fans
- Vertical risers
- Discharge points
- Canopies and hoods
- Horizontal duct runs
FAQs for Codicote
Do you clean school canteen extracts around Codicote out of term?
Yes, and it’s the easiest time to do it. 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.
Which fire authority looks after Codicote?
Fire safety enforcement in Codicote is handled by Hertfordshire Fire and Rescue Service. If a fire safety officer visits a commercial kitchen, they may ask about the fire risk assessment and how the extract is kept clean.
What information do you need?
Where the site is, what it is and when it’s open, plus pictures of the system and your last certificate or report if you have one.
Is TR19 a legal requirement?
TR19® itself isn’t law. Under the Fire Safety Order 2005, the responsible person must assess and reduce fire risk, and cleaning to TR19 is the recognised way to show you’ve dealt with extract grease.
How long does it take to clean a kitchen extract system?
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.
Will I get a certificate after the clean?
You receive a TR19 certificate and a photo report. The certificate is issued through the BESCA Vent Hygiene Elite portal, and the report shows before and after pictures, readings, any areas not reached and the next clean date.
Do you cover Codicote?
Yes. Codicote is part of the area we cover, within the South East and London area we cover.
What is TR19?
It’s BESA’s specification and the benchmark insurers, fire officers and EHOs look to. It sets out inspection, cleaning and record keeping, and it takes a risk-based approach.