Hertfordshire · Ductwork cleaning
Ductwork cleaning in Codicote Bottom, Hertfordshire
One call covers ductwork cleaning in Codicote Bottom, from survey to sign-off. Fully insured, with CHAS, SafeContractor and ISO 9001.
- A grease test showing the duct is overdue
- Thick crusts of old grease along the duct
- Gaps where access panels were never fitted
Codicote Bottom questions
Do you work in villages like Codicote Bottom?
Yes, Codicote Bottom is part of our area, however small the site. The journey is planned ahead, so a few details about the route help.
Can a school canteen extract in Codicote Bottom be done out of term time?
Yes, out-of-term visits are normal for schools. There are about 4 schools, colleges and universities on the FSA’s food hygiene register within about 1.5 miles of Codicote Bottom. You can give us a ring on 0345 646 2711 or email us with the dates the site is empty.
What is TR19?
BESA’s ventilation hygiene specification, with two parts that matter most here: TR19® Grease for kitchen extract systems and TR19® Air for general ventilation. It is not legislation, but it’s the standard people check against.
Do you offer maintenance contracts?
Yes, of course. Tell us what you have and how it’s used, and we will suggest a schedule and quote for it.
Do you survey before quoting?
Yes. Photos often do the job, and larger or hidden systems get a visit.
What information do you need?
Only a few details: where it is, what kind of site, when it’s open and the access. Photos and any previous paperwork make it quicker. After that, simply give us a ring on 0345 646 2711 or email us.
What’s the cleaning interval for extract ductwork?
BESA guidance sets minimum intervals by daily cooking hours: every 3 months for 12 to 16 hours, 6 months for 6 to 12 hours and 12 months for 2 to 6 hours. Measured grease sets the real interval.
What does ductwork cleaning cost?
There’s no set price, as it depends on the job: how big it is, what state it’s in, how we reach it and the working hours. You get a fixed price before any work starts.
Ductwork cleaning in Codicote Bottom, done properly
Every duct has its own route. Some run a short distance to an outside wall, others climb several floors to the roof. We map the route during the survey, so we know where to get in and how long it will take. If you have heavy grease at the base of a riser and thick crusts of old grease along the duct, we can put it right.
Work in a small place like Codicote Bottom starts with a call to agree access and timings, and the clean itself is the same full TR19® job as in any town: canopy, filters, duct, fan and discharge, with a certificate and photo report at the end.
Every visit ends with a written report and photos, so there’s a dated record of the work. Kitchen extract cleaning to TR19® Grease is certificated through the BESCA Vent Hygiene Elite portal.
- Where
- Codicote Bottom (SG4)
- Wider area
- Hertfordshire
- Paperwork
- TR19® certificate and photo report
- Quote
- Fixed quote, typically within a working day
- Hours
- After hours by arrangement; emergencies any time
- Phone
- 0345 646 2711
- Updated
- 30 October 2026
What affects the quote in Codicote Bottom
Some jobs are bigger than they look, and some smaller. What affects the quote:
- Whether it’s a one-off visit or part of a schedule
- Working hours and out-of-hours timing
- Travel, parking and unloading
- What state the system is in
Combining work into one visit or one programme can make for a more efficient booking. Tell us about everything you’d like looked at and we will price it together.
Helping us quote
To help us quote quickly, please include:
- Where the plant sits or the system leaves the building, such as a roof or outside wall
- Wide photos of the system and the area around it
- Any symptoms, from odd noises to smells or leaks
- Your last certificate, test record or report
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, the quote is fixed before any work is booked.
Places near Codicote Bottom
Other services in Codicote Bottom
What we’re called out for in Codicote Bottom
The further the air travels from the cooking, the cooler it gets. Cooling air drops its grease onto the inside of the duct, so duct runs keep collecting grease long after the canopy.
If you notice any of these, it’s worth a diagnosis:
- Hardened, baked-on grease in long horizontal runs
- Grease seeping out of the duct seams
- Proof of duct cleaning for the insurer
- High readings at a recent grease test
School kitchens, at schools like Codicote Church of England Primary School for example, are normally cleaned in the holidays so no lunches are lost.
Comparing quotes
- Whether a written report and pictures are included
- When the next visit should be, and why
- What insurance they carry
- Exactly which parts of the system are covered
Kitchen extracts in Codicote Bottom
Food Standards Agency data counts about 4 restaurants, cafés and canteens within roughly a mile and a half of the centre of Codicote Bottom. Each kitchen that cooks under a canopy sends grease-laden air into a duct, where it cools and settles. Food hygiene inspections in Codicote Bottom are the job of North Hertfordshire council’s environmental health team. They look at how clean the premises and equipment are, and the kitchen extract is part of that. Keeping each certificate and photo report on file helps show the extract is looked after. Hertfordshire Fire and Rescue Service covers Codicote Bottom. The Fire Safety Order puts the duty on whoever runs a kitchen to control its fire risk, and a greasy duct is fuel.
A hall kitchen that only cooks for events, whether near Parish Church of St Giles or elsewhere in Codicote Bottom, still needs its extract cleaned, just less often. Kitchens that cook twelve hours or more a day, as some healthcare kitchens do, fall into BESA’s three-monthly minimum; Queen Elizabeth II Hospital is the nearest hospital to Codicote Bottom, about 5.2 miles south-east.
Codicote Bottom is about 4 miles north-west of Welwyn Garden City, in Hertfordshire. We provide ductwork cleaning for businesses, landlords and public buildings in Codicote Bottom and the rest of Hertfordshire. We cover 381 places across Hertfordshire, from busy centres to quieter spots. London is in our area too, about 25 miles from Codicote Bottom.
Ductwork cleaning in SG4 follows the same survey, fixed quote and written report as everywhere else we cover. Local streets include Heath Hill and Kimpton Road, all of which we cover for ductwork cleaning. We also cover Codicote (1 mile east), Ayot St Lawrence (1 mile south-west), Driver's End (1 mile north-east), Nup End Green (2 miles north-east) and Ayot St Peter (2 miles south). Larger places within reach include Watford (14 miles south-west), Hemel Hempstead (11 miles south-west), Stevenage (5 miles north-east), St Albans (7 miles south-west), Welwyn Garden City (4 miles south-east) and Harpenden (5 miles south-west).
Local landmarks in Codicote Bottom
Typical jobs here are in premises near Danesbury Park, The Goat Public House and Monk's Walk School, among other places. For rail, the closest station is Welwyn North station, roughly 2.9 miles south-east of the centre. Nearby you will also find Howard Centre (3.7 miles south-east) and Datchworth Museum (3.8 miles east). Not far away are Stocking Springs Wood.
How the job changes from site to site
Multi-storey and shared buildings
In a building with several floors, the duct may pass other tenants’ spaces. We plan access with you and the building manager, so the clean is done safely and quietly.
Vertical risers
A riser takes the duct up through one or more floors. Grease runs down the walls and gathers at the base, so the base is one of our test points.
Honest limits
We will always give you a straight diagnosis, so here’s what ductwork cleaning will not do:
- A worn-out fan that needs replacing
- Faulty fire dampers
- Parts of the duct with no way in
If you are not sure, just call 0345 646 2711 or send us an email and we’ll give you a straight answer before booking.
Where we work
- Multi-storey ducts
- Access panels
- Vertical risers
- Horizontal duct runs
- Bends and junctions
- Attenuators
Aftercare tips
Results last longer with the right care. We suggest:
- Ask for a grease thickness test if the kitchen gets busier
- Never cook with a filter missing
- Ask us about extra access panels where sections can’t be reached
- Keep the fan on while anything is cooking
When the duct is cleaned as part of a full TR19® Grease clean, a TR19 certificate is issued through the BESCA Vent Hygiene Elite portal. It shows when and where the clean was done and by whom.
Run the extract the whole time the kitchen is cooking. When the air stops, grease settles in the duct, so switching off early adds to the build-up.
What we do, step by step
The visit has three parts: getting the area ready, doing the work and signing it off. Set-up means sheeting and making equipment safe, while signing off means the written report and pictures. The middle part takes longest, which takes a few hours for a short run, longer for long runs and tall risers. Visits to a village like Codicote Bottom are booked in advance, at a time that suits whoever runs the site.
- Diagnosis: a survey of the duct’s route, size and access.
- A fixed quote follows, based on what we found.
- Each section is cleaned in turn through its access panel.
- Bends, risers and the base of each riser get extra attention.
- Readings, pictures and a recommended next clean date complete the job.
Preparing for the visit
- Mention any parking or loading restrictions
- Clear loose items from the work area
- Make sure equipment near the work can be switched off and left to cool
Ask for a quote
The quickest way to a quote is to send pictures: wide shots of the system, close-ups of anything that worries you and how we’d get to it. Add the site type and your opening hours, and many jobs can be priced from that alone.
Advice
Managing agents and facilities teams in Codicote Bottom
When the building owner and the occupier are different, it’s worth checking the lease for who maintains the systems. We can quote either party and send the paperwork to whoever needs it.
Under the Regulatory Reform (Fire Safety) Order 2005, the responsible person must assess and reduce fire risk, which may be the employer, owner, landlord, FM or managing agent. With shared responsibility, good records help everyone.