Hertfordshire · Kitchen extract cleaning
Nash Mills kitchen extract cleaning
Kitchen extract cleaning for businesses, landlords and public buildings in Nash Mills. CHAS, SafeContractor and ISO 9001, and fully insured.
- Stale cooking odours from the system
- An overdue clean flagged by an EHO or fire officer
- Years of baked-on grease in the ducts
What staff can safely do
A few tasks are always specialist work: entering ducts, working on fans, testing dampers and taking grease readings need training, the right equipment and safe access. That’s our job.
When your team notices a problem between visits, like drips, unusual noise, smells or damaged filters, it’s best reported rather than tackled in-house. We will take a look and give you a fixed quote.
Kitchen extract cleaning for kitchens and businesses in Nash Mills
The canopy over the range is only the start of a kitchen extract system. Behind it sit the plenum and grease filters, then the ductwork, risers, extract fan and discharge, and grease settles in every one of them. A TR19® Grease clean deals with the whole route, not only the parts on show. Common call-outs are for missing paperwork after a change of operator and an overdue clean flagged by an EHO or fire officer, across horizontal duct runs, extract fans and vertical risers. Whether you call it kitchen extract cleaning, TR19 cleaning or kitchen duct cleaning, it’s the job we do every week across Hertfordshire.
Access decides how thorough a clean can be. Where a duct run has no panels, we say so on the report and can fit new ones.
Kitchens around a place like Nash Mills are often in older buildings or single-storey extensions, with the duct running through a roof space or up an outside wall. Flat runs collect grease and need proper access to clean.
Insurers, fire officers and environmental health officers all look at records. So every job comes with a written report and photos, plus a TR19® certificate through the BESCA VHE portal where the work is a TR19® Grease clean.
- Where
- Nash Mills (HP3, WD4)
- Region
- Hertfordshire
- Reporting
- TR19® certificate and photo report
- Quotes
- Fixed quote, usually within a working day
- Hours
- Nights, weekends or holidays to suit you
- Telephone
- 0345 646 2711
- Page updated
- 30 October 2026
Leave it or put it right?
Leaving the clean until the next refit doesn’t make the grease go away. 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. In a smaller place like Nash Mills, a site that has to close is felt quickly.
No two sites are the same, so each one gets its own fixed quote. The size of the job, how we reach it, its condition and the working hours all play a part.
Why choose Duct Doctor in Nash Mills
- Ventilation hygiene specialists since 2009
- One number for every site across the South East and London
- CHAS and SafeContractor accredited, with ISO 9001
- A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
Take a look at how cleaning jobs are priced or our accreditations.
Nash Mills kitchens: local notes
Food Standards Agency records list about 44 restaurants, cafés and canteens and about 20 takeaways within roughly a mile and a half of the centre of Nash Mills. Wherever food is cooked under a canopy, the extract above it gathers grease and needs cleaning on a schedule. In Nash Mills, food businesses are inspected by environmental health officers from Dacorum council. Extraction counts as kitchen equipment, so its condition can come up on the day. Our report lists what was cleaned and when, which is useful to have ready. The fire and rescue service for Nash Mills is Hertfordshire Fire and Rescue Service. 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.
Kitchens that cook twelve hours or more a day, as some healthcare kitchens do, fall into BESA’s three-monthly minimum; Hemel Hempstead Hospital is the nearest hospital to Nash Mills, about 1.7 miles north-west. If you look after a school kitchen, at a school such as Nash Mills Church of England Primary School or anywhere near Nash Mills, the holidays are the usual time for a TR19® clean.
Nash Mills is about 2 miles south of Hemel Hempstead, in Hertfordshire. Anywhere in HP3, we cover kitchen extract cleaning for commercial sites. Nash Mills is one of 381 towns, villages and districts in Hertfordshire we cover for kitchen extract cleaning. Our London page covers sites nearby, about 22 miles away.
We cover every part of the HP3 and WD4 postcode area for kitchen extract cleaning and the streets around it. We cover sites on Pond Road, Rose Lane and Lower Road and the roads around them. Nearby, we also carry out kitchen extract cleaning in Felden (1 mile west), Rucklers Lane (1 mile south-west), Bennetts End (1 mile north), Apsley (1 mile north-west) and Kings Langley (1 mile south). Larger places within reach include Watford (5 miles south-east), St Albans (5 miles east), Welwyn Garden City (12 miles north-east), Harpenden (7 miles north-east), Hatfield (10 miles east) and Borehamwood (9 miles south-east).
Landmarks near Nash Mills
We work in commercial kitchens and buildings around Longdean School and Red Lion Public House. The nearest railway station is Apsley station, about 0.5 miles west. Nearby you will also find Hemel Hempstead Hospital (1.7 miles north-west). Green spaces nearby include Long Deans and Verulamium Lake.
Nash Mills questions
Do you work overnight in Nash Mills?
Yes, we can come after you close and finish before you open. The site is handed back ready to open. Let us know the hours you are closed and we’ll book within them.
Who carries out food hygiene inspections in Nash Mills?
Food hygiene inspections in Nash Mills are carried out by Dacorum council. How often a business is inspected depends on the risk rating the council gives it, so it’s worth staying ready all year.
Do you have a 24/7 line?
Yes. For anything urgent, such as a fan failure or damage after a fire, ring the 24/7 line and we will talk you through the next steps.
What’s TR19?
TR19® is BESA’s specification for ventilation hygiene. Since 2019, TR19® Grease has been a standalone specification for grease in kitchen extract systems, while TR19® Air covers other supply and extract ductwork.
Which sectors do you work in?
Restaurants and pubs, hotels, schools and colleges, hospitals and care homes, offices and retail, as well as food production and leisure sites.
What accreditations do you hold?
Our work is to BESA TR19® Grease, and we are a BESCA Vent Hygiene Elite member, and certificates go through the BESCA Vent Hygiene Elite portal. Duct Doctor has been trading since 2009.
What paperwork comes with a kitchen extract clean?
Yes, a TR19 certificate, along with a photo report. The report lists what was cleaned, anything we couldn’t reach and when the next clean is due.
How do you protect the area?
With sheeting and covers, before anything else happens. The work is kept contained and clean down when we finish.
Keeping the system healthy
Once we have finished, these simple steps help:
- Tell us when the extract starts to drip or smell
- Run the extract fan throughout cooking
- Do not let the canopy gutters overflow
- Keep the cleaning records where you can find them
When the clean is finished, grease readings are taken again at the same points, so you can see the difference in numbers as well as pictures. A TR19 certificate follows, issued through the BESCA Vent Hygiene Elite portal.
Report drips, smells or a noisy fan early. Drips, odours and fan noise often mean grease is building, and a grease thickness test can confirm it.
Honest limits
We won’t sell you work that does not address the problem, so these are the things it will not cover:
- A canopy that’s too small or a system that was badly designed
- A fan motor that has burnt out
- Fat blocking the kitchen drains
Not sure which it is? You can give us a ring on 0345 646 2711, or send details by email and we’ll tell you honestly before you book.
Where we work
- Extract fans
- Plenums and filters
- Canopies and hoods
- Vertical risers
- Discharge points
- Horizontal duct runs
Fixed quotes for kitchen extract cleaning in Nash Mills
Your quote is based on your site. We take into account:
- When the work can happen, such as evenings, overnight or weekends
- Site requirements such as sign-in and permits
- The condition of the system
- The size of the system
Kitchens, offices, schools and hospitals are all priced the same way: how much there is, how we reach it, what state it’s in and when we can work. Call for a fixed quote and we’ll go through it with you.
Helping us quote
Photos let us diagnose from a distance. Try to include:
- The site address and the type of premises
- The times we could work without disrupting the site
- Problems your staff have spotted
- Wide pictures of the system and the area around it
Some systems can be priced from pictures; others need a survey. Big or complicated sites, and systems that are hard to see in pictures, get a survey first. Either way, you get a fixed price before work begins.
What we do, step by step
Your trading hours come first. We book the visit for a time the area is closed, whether that is an evening, overnight or a weekend. 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 single shift for most kitchens, with long duct runs and tall risers needing more time. Tell us about any gates, ladders or locked plant areas at your site near Nash Mills when you book.
- You send pictures or we visit, and the system is surveyed from canopy to discharge.
- Grease thickness is measured and the price is fixed before work starts.
- On the night, the equipment is off and cool and the kitchen is sheeted.
- Filters, canopy and plenum are cleaned, then the ducts, risers, fan and discharge.
- We re-test, photograph and send your certificate and photo report.
How to prepare
- Plan for cooking equipment or plant to be off before we arrive
- Agree a time when the area can be out of use
- Let us know how we reach the system, including roofs, risers and plant rooms
Ask for a quote
The quickest way to a quote is to send pictures: the system from a couple of angles, plus any access panels or hatches. Tell us what kind of site it is and when it’s open, and we can price many jobs without a visit.
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Places near Nash Mills
Also in Nash Mills
Signs you need kitchen extract cleaning in Nash Mills
How fast grease builds up depends mostly on how long the kitchen cooks each day. 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.
Any of these means the system needs a check-up:
- Fat running down the canopy edge
- A system with no record of a TR19 clean
- Years of baked-on grease in the ducts
- Missing paperwork after a change of operator
Church and community hall kitchens, near Church of St Mary or anywhere around Nash Mills, are easy to forget, but their extracts collect grease like any other.
Questions to ask before booking
- Whether the quote is based on a survey or photos
- How areas they can’t reach will be recorded
- If the quote is a fixed price or an estimate
- What hours they’ll be on site