Hertfordshire · Ductwork cleaning
Nash Mills ductwork cleaning
Cleaning of kitchen extract ductwork, horizontal runs and vertical risers through access panels for commercial sites in Nash Mills and across Hertfordshire. BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease.
- Years of grease along the duct floor
- An insurer asking for TR19 evidence
- Stale grease odours from the duct
Ductwork cleaning in Nash Mills: the local picture
Look up Nash Mills on the FSA’s food hygiene register and you’ll find about 44 restaurants, cafés and works canteens and about 20 sandwich bars and takeaways across Nash Mills and its immediate surroundings (about a mile and a half). Each kitchen that cooks under a canopy sends grease-laden air into a duct, where it cools and settles. The fire and rescue service for Nash Mills is Hertfordshire Fire and Rescue Service. The Fire Safety Order puts the duty on whoever runs a kitchen to control its fire risk, and a greasy duct is fuel. Environmental health officers from Dacorum council inspect food businesses in Nash Mills. An officer looking round a kitchen will see the canopy, and grease there is hard to miss. A dated certificate in the maintenance file answers the question before it’s asked.
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. Healthcare kitchens can’t easily close, so their extracts are cleaned overnight or between meal services; the nearest hospital to Nash Mills is Hemel Hempstead Hospital, about 1.7 miles north-west. School kitchens, at schools like Nash Mills Church of England Primary School for example, are normally cleaned in the holidays so no lunches are lost.
Nash Mills is about 2 miles south of Hemel Hempstead, in Hertfordshire. Every kind of commercial site in Nash Mills, we can take on ductwork cleaning. Visits can be booked for evenings, overnight or weekends so the site keeps running. Our area takes in 381 places across Hertfordshire, from busy centres to quieter spots. For sites nearby, see our London page, about 22 miles away.
Our technicians cover all of HP3 and WD4 for ductwork cleaning and the roads nearby. If you need ductwork cleaning at premises on Pond Road, Rose Lane and Lower Road or a nearby road, our technicians can take on the work. We also cover the places around Nash Mills: 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). Further out, we also cover 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).
Around Nash Mills
Around Nash Mills, our work takes us to kitchens and buildings near Longdean School and Red Lion Public House, among other places. The closest station to Nash Mills is Apsley station, roughly 0.5 miles west of the centre. Nearby you’ll also find Hemel Hempstead Hospital (1.7 miles north-west). The countryside around Nash Mills includes Long Deans and Verulamium Lake.
About our ductwork cleaning in Nash Mills
If the ducts in Nash Mills haven’t been cleaned for a while, or nobody is sure when they were? A few details about the system are a good start when you call 0345 646 2711 or send us an email, and a fixed price will follow, typically within one working day. The work covers access panels, attenuators and vertical risers, and people most often call us about duct runs that can’t be reached and hardened, baked-on grease in long horizontal runs.
Around a smaller place like Nash Mills, kitchen extracts tend to belong to pubs, cafés, takeaways and school or care home kitchens. Quieter kitchens still collect grease in the duct, just more slowly, so the interval is set by hours of use and grease readings.
For insurers and inspectors, the record counts. 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
- Records
- TR19® certificate and photo report
- Quote
- A fixed price before we start
- Working hours
- Out of hours as standard, 24/7 emergency line
- Phone
- 0345 646 2711
- Updated
- 30 October 2026
Towns and villages near Nash Mills
What else we do in Nash Mills
When something else is needed
We’ll always give you a straight diagnosis, so here’s what ductwork cleaning won’t do:
- A duct that’s too small or badly routed for the kitchen (a design issue)
- An extract fan that has stopped working
- Duct sections that need replacing
Not sure which it is? You can phone us on 0345 646 2711, or email photos and we’ll tell you honestly before booking.
What we work on in Nash Mills
- Horizontal duct runs
- Attenuators
- Vertical risers
- Bends and junctions
- Access panels
- Multi-storey ducts
How it works
On the day, we arrive at the time agreed with you, often in the evening, overnight or at the weekend so the site keeps working. Anything that needs to be off for the work is switched off and left to cool before any work starts, and floors and nearby surfaces are sheeted. On site, it takes anything from a few hours to several visits, depending on the length of duct. Tell us when your site near Nash Mills is quiet and the visit will be booked for then.
- We trace the duct and find every way in.
- We take grease readings along the route.
- Once the kitchen has closed, we protect the area and open the panels.
- Heavy deposits come out by hand, then each section is degreased.
- We close up, re-test, photograph and record anything out of reach.
Getting ready for the visit
- Plan for cooking equipment or plant to be off before we arrive
- Let us know about permits to work or site inductions
- Tell us the best time to work, such as after service or at a weekend
How to get a quote
Getting a quote does not take long. Call or email with a few details and you’ll normally have a fixed price within one working day. Where a survey is needed, we arrange a time that suits the site.
Related advice
How the job changes from site to site
Access panels
After cleaning, every panel is closed and sealed so the duct stays tight. A damaged panel is noted on the report.
Attenuators and discharge
Near the discharge, the air has cooled the most, so it can collect more grease than expected. It’s tested and cleaned along with the rest.
How we price ductwork cleaning
Some jobs are bigger than they look, and some smaller. What affects the quote:
- The scale of the work
- Parking and loading at the site
- The condition we find in the survey
- When the work can happen, such as evenings, overnight or weekends
We don’t list prices on the website, because each job is priced on what it involves. Call for a fixed quote, and we will talk you through it.
Helping us quote
Photos and a few facts are often enough to price the work. Useful things to send:
- When the site is open and when it’s quiet
- The paperwork from the last visit, if you have it
- How we’d reach plant on a roof or in a plant room
- A few general shots of the system
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.
Staff cleaning versus specialist work
A few tasks are always specialist work: opening up ductwork, cleaning fans, drop testing fire dampers and measuring grease need training, the right equipment and safe access. That is our job.
For ventilation and air handling systems, in-house care is mostly about checks: clear grilles, a log of filter changes and reporting anything odd. The inside of ducts and units needs a specialist.
Managing agents and facilities teams in Nash Mills
Landlords, managing agents and facilities managers book us, not only the businesses that use the systems. Where a system serves more than one tenant, such as a shared riser, it helps to agree who arranges the work, and we’re happy to quote for all of it.
We regularly work with managing agents. Tell us the site, the work and the access arrangements, and we’ll send a fixed quote.
Leave it or put it right?
BESA guidance says grease shouldn’t exceed a mean of 200 microns between cleans. A reading of 500 microns or more at any point means a spot clean straight away. Putting off the clean only pushes readings higher. Light use slows the build-up but does not stop it.
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.
Why book with us
- CHAS and SafeContractor accredited, with ISO 9001
- Work around your opening hours, with 24/7 emergency cover
- A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- One number for every site across the South East and London
Take a look at what affects the cost and our accreditations and certificates.
Questions from Nash Mills
Do you work in villages like Nash Mills?
Yes, smaller places are covered as well as towns. The journey is planned ahead, so a few details about the route help.
Can school kitchens in Nash Mills be cleaned in the holidays?
Yes. The holidays are the usual time for school work. There are about 15 schools, colleges and universities on the FSA’s food hygiene register within about 1.5 miles of Nash Mills. Booking early in the term gives the best choice of holiday dates.
Are you accredited?
We hold CHAS, SafeContractor and ISO 9001, alongside BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease. The Vent Hygiene Elite scheme is run by BESCA and audited independently.
How can I tell if my extract ducts are dirty?
We measure it. Readings are taken by Wet Film Thickness Test (WFTT) or Deposit Thickness Test (DTT). BESA guidance says the mean shouldn’t exceed 200 microns, and 500 or more anywhere needs immediate spot cleaning.
Is there a survey before the work?
Yes. Every job is surveyed first, from your photos and details, or with a visit where necessary. A fixed quote follows.
How much does ductwork cleaning cost in Nash Mills?
The cost depends on the size of the system, its condition, access and timing. Call for a fixed quote, typically ready within one working day.
Do we have to stop cooking while the ducts are cleaned?
Only while we are working, and we work around you. Most kitchens book overnight or weekend cleans, so no service is lost.
What do you do to protect the area?
We start with protection: floor sheeting and covers over nearby surfaces and equipment. We tidy up and take our waste away before we leave.