Hertfordshire · Kitchen extract cleaning
Kitchen Extract Cleaning in Great Offley
Kitchen extract cleaning in Great Offley from ventilation hygiene specialists trading since 2009. Evenings, overnight and weekends, plus a 24/7 emergency line.
- Cleaning needed before an insurance renewal or survey
- Rancid smells from grease in the duct
- Years of baked-on grease in the ducts
The process
We turn up at the time agreed with you, which is often after service, overnight or at a weekend. Equipment that has to be off is switched off and allowed to cool before work begins, and the area around the work is covered and protected. On site, it takes one visit for most kitchens, while large or complex systems may need more than one. Somewhere like Great Offley, lanes, gates and parking are worth mentioning in advance.
- We survey the system, from your photos or on site, canopy to discharge.
- We take grease readings at set points and give you a fixed quote.
- On the night, the equipment is off and cool and the kitchen is sheeted.
- We work through the system from the canopy to the fan and discharge.
- We re-test, photograph and send your certificate and photo report.
Getting ready for the visit
- Agree a time when the area can be out of use
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
- Dig out any earlier paperwork for the system
Ask for a quote
For kitchen extract cleaning in Great Offley, phone us on 0345 646 2711 or use the quote form. Let us know the site type and the opening hours, and send pictures or your last report if you can. A fixed quote typically follows within one working day.
Related advice
About our kitchen extract cleaning in Great Offley
Insurers often want evidence of regular TR19 cleaning, and a claim can be refused or reduced without it. The certificate and photo report from each clean in Great Offley give you that record for the maintenance log. We are often asked to deal with an inspection that picked up a dirty extract and proof of cleaning requested by an insurer, across plenums and filters, horizontal duct runs and discharge points. When a restaurant in Great Offley asks for duct cleaning, it’s nearly always the kitchen extract they mean, and that is exactly what we do: the whole run from hood to roof, cleaned to TR19® Grease.
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 readings afterwards go into your report.
In a village or hamlet like Great Offley, the kitchens that need extract cleaning are typically 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, whatever the size of the place.
It’s worth checking any contractor’s accreditations. We are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we hold CHAS, SafeContractor and ISO 9001, with full insurance on top.

- Place
- Great Offley (SG5)
- Wider area
- Hertfordshire
- Paperwork
- TR19® certificate and photo report
- Quote
- A fixed price before any work starts
- When we work
- After hours by arrangement; emergencies any time
- Telephone
- 0345 646 2711
- Reviewed
- 30 October 2026
Aftercare tips
A little care between visits keeps the system in better shape. Our advice:
- Tell us when the extract starts to drip or smell
- Wipe the canopy down at the end of each day
- Keep to the recommended cleaning interval
- Keep grease collection points emptied
Any section without access is marked on the report. A TR19 report should record what wasn’t cleaned as well as what was, and we can fit access panels so it’s reached next time.
Regular filter cleaning is the simplest thing a kitchen can do. Clean, well-fitted filters catch more fat before it reaches the duct, which slows build-up further down the system.
Also near Great Offley
What else we do in Great Offley
Fixed quotes for kitchen extract cleaning in Great Offley
Sites vary more than people expect. What affects the quote:
- The times the site is available
- Whether we need access equipment or extra panels
- The condition of the system
- Site rules, permits and inductions
One small site or a whole estate, we price it on the same basis: the work involved, the access and the timing. You will have a fixed price before work begins.
What we need to know
We can often survey from pictures. The most useful are:
- Detail shots of panels, filters and grilles
- Where the site is and what kind of site it is
- Where the plant sits or the system leaves the building, such as a roof or outside wall
- Anything you’ve noticed, such as smells, noise, drips or poor airflow
Some systems can be priced from photos; others need a survey. Big or complicated sites, and systems that are hard to see in pictures, get a survey first. Either way, the quote is fixed before any work is booked.
Signs you need kitchen extract cleaning in Great Offley
The reason for all this is fire. Flames from a pan or grill can be pulled into the canopy by the fan, and once grease in the duct catches, fire can spread through the building’s ductwork. For a kitchen in Great Offley, keeping that fuel under control is part of the fire risk assessment.
If you notice any of these, it’s worth a diagnosis:
- Fat running down the canopy edge
- A TR19 certificate needed for the insurer
- An overdue clean flagged by an EHO or fire officer
- An extract that has never been cleaned to TR19
School kitchens, at schools like Offley Endowed Primary School for example, are usually cleaned in the holidays so no lunches are lost.
What your quote should include
- When the next visit should be, and why
- Whether the whole system is included, or only the parts that are easy to reach
- How areas they can’t reach will be recorded
- Whether the quote is based on a survey or pictures
Great Offley questions
Do you cover smaller places like Great Offley?
Yes, Great Offley is part of our area, however small the site. A survey first, from photos or a visit, means we arrive with the right kit.
Who would carry out a food hygiene inspection at a kitchen in Great Offley?
Kitchens in Great Offley are inspected by North Hertfordshire council’s environmental health officers. Have your latest TR19® certificate and photo report to hand, as an officer may ask how the extract is maintained.
Are you a BESCA Vent Hygiene Elite member?
Duct Doctor is a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 sit alongside that, and we are fully insured.
When do you clean the extract?
Out of hours: evenings, overnight, early mornings or weekends. The equipment is switched off and left to cool, and we hand the kitchen back ready for the next service.
Will my insurer ask for a TR19 certificate?
Many insurers ask for proof of regular cleaning to TR19, and many policies require it. Without proof, a claim can be refused or reduced, so it’s worth checking your policy wording.
What happens if you cannot reach some of it?
The report shows them clearly. Often the fix is extra access, such as new panels in ductwork, which we can install.
How often does a kitchen extract system need cleaning?
BESA guidance sets minimums by daily cooking hours: 3-monthly for heavy use, 6-monthly for moderate use and 12-monthly for light use. Measured grease levels set the real interval.
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.
What the work involves, part by part
Schools, hospitals and care homes
School kitchens can look lightly used but still need a TR19 clean at least every 12 months under BESA guidance. Holidays make it simple to schedule.
Ductwork and risers
Vertical risers carry the air up through the building, and grease often collects at the bottom of them. They’re cleaned through access points along their height.
When something else is needed
It’s worth knowing the limits before booking:
- Fire dampers that will not close (that needs damper testing and remedials)
- Ductwork that is corroded, split or leaking (that’s for a ductwork contractor)
- A fan motor or bearings that have failed (that needs a fan repair or replacement)
If in doubt, give us a ring on 0345 646 2711 or email us and we’ll say what we think before booking.
What we work on in Great Offley
- Canopies and hoods
- Plenums and filters
- Extract fans
- Vertical risers
- Discharge points
- Horizontal duct runs
Why it’s worth doing now in Great Offley
Putting it off simply moves the grease further down the duct. Fat that was soft and easy to remove hardens with heat and time, which is slower to clean. Staying on a regular cycle keeps each clean manageable. A planned visit to Great Offley is easier to arrange than an emergency callout.
Several systems or sites on one quote can make for a more efficient booking. Mention every system or site you need covered and we will price it together.
Why us?
- Trading since 2009
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
- Survey first, then a fixed quote
- We’re fully insured
See what affects the cost and our accreditations and certificates.
Kitchen extract cleaning in Great Offley: the local picture
According to Food Standards Agency records, there are about 4 pubs and bars within roughly a mile and a half of the centre of Great Offley. A pub or hotel kitchen that cooks every day builds up grease in its extract like any other. Food hygiene inspections in Great Offley are the job of North Hertfordshire council’s environmental health team. Extraction counts as kitchen equipment, so its condition can come up on the day. A dated certificate in the maintenance file answers the question before it’s asked. Great Offley 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.
Healthcare kitchens, like those at hospitals such as Keech Hospice Care (about 4.2 miles west), often cook for long hours, which puts them in BESA’s heavier-use bands. Church and community hall kitchens, near Church of St Mary Magdalene or anywhere around Great Offley, are easy to forget, but their extracts collect grease like any other.
Great Offley is about 3 miles south-west of Hitchin, in Hertfordshire. Whether your site is in the middle of Great Offley or further out, kitchen extract cleaning is available to all kinds of commercial premises, from small sites to large estates. Great Offley is one of 381 towns, villages and districts in Hertfordshire we cover for kitchen extract cleaning. You can also see our page for Milton Keynes, roughly 20 miles from Great Offley.
Every address in SG5 is covered for kitchen extract cleaning, from the main roads to the quietest streets. Streets in the area include High Street, Garden Fields and John Hall Court, all of which we cover for kitchen extract cleaning. Other places close to Great Offley include The Flints (1 mile west), Temple End (2 miles east), Ley Green (2 miles south-east) and Pegsdon (2 miles north-west). Larger places within reach include Hemel Hempstead (13 miles south-west), Stevenage (7 miles east), St Albans (12 miles south), Welwyn Garden City (11 miles south-east), Harpenden (8 miles south) and Hitchin (3 miles north-east).
What’s near Great Offley
Typical jobs here are in premises near The Bull Public House and the streets around them. The closest station to Great Offley is Hitchin station, about 3.7 miles north-east. Other landmarks nearby include Ravensburgh Castle (3.1 miles north-west) and Keech Hospice Care (4.2 miles west). The countryside around Great Offley includes Pegsdon Hills and Markham's Hill.