Hertfordshire · Ductwork cleaning
Duct cleaning in Datchworth
Ductwork cleaning in Datchworth from ventilation hygiene specialists trading since 2009. Out-of-hours visits and 24/7 emergency callout.
- A rancid smell from the extract duct
- Hardened, baked-on grease in long horizontal runs
- Duct runs with no cleaning record
Landlords, agents and facilities managers
Keeping records across a portfolio is half the battle. Every visit ends with a dated report and pictures, ready to show insurers, fire officers or EHOs.
We also work for facilities teams across offices, schools and healthcare across Hertfordshire. Work can be phased by floor, building or site to keep disruption down.
How we handle ductwork cleaning in Datchworth
Between the canopy and the fan runs the ductwork, hidden above ceilings and inside walls. Every horizontal run and vertical riser collects grease along the way, and that’s where a kitchen fire can travel. Our ductwork cleaning reaches inside the runs and risers through access panels, to BESA TR19® Grease. If you have high readings at a recent grease test and an insurer asking for TR19 evidence, we can put it right, from attenuators, vertical risers and access panels onwards.
For a kitchen in or near Datchworth, the visit is planned around opening hours and the journey, and the clean itself is the same full TR19® job as in any town: canopy to discharge, then a TR19® certificate and a photo report.
Nothing is signed off by word of mouth: a dated report with pictures of the work, plus a certificate through the BESCA Vent Hygiene Elite portal when the work is a TR19® Grease clean. It shows what was done and what, if anything, couldn’t be reached.
- Where
- Datchworth (SG3)
- Wider area
- Hertfordshire
- Records
- Certificate and photo report
- Quotes
- A fixed price before we start
- Hours
- Overnight and weekend work, 24/7 emergency callout
- Telephone
- 0345 646 2711
- Reviewed
- 30 October 2026
What affects the cost of ductwork cleaning
We don’t publish a price list, because sites vary so much. What we look at:
- The times the site is available
- The condition of the system
- Whether several sites go on one quote
- Whether we need access equipment or extra panels
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 any work starts.
What to send for a quote
Many jobs can be priced from pictures and some basics. Send what you can of the following:
- The postcode and the type of business
- Problems your staff have spotted
- Photos showing the whole system and its surroundings
- The times we could work without disrupting the site
We do not publish a price list, because every site is different. We look at your system first, from pictures or on a visit, then send a fixed quote. To start, give us a ring on 0345 646 2711 or use the quote form.
The process
Our technicians bring everything the work needs, including protection sheets, the right tools and access kit. You only need to give us clear access and switch off what needs to be off. The visit takes a shift or more, depending on the length of the runs and the number of access points. Pictures of the system and its access let us plan the work in Datchworth before we set off.
- First we diagnose: the route, the access and the grease levels.
- A fixed quote follows, based on what we found.
- We clean section by section, working from panel to panel.
- We take extra care at bends and at the foot of risers.
- Readings, photos and a recommended next clean date complete the job.
Getting ready for the visit
- Plan for cooking equipment or plant to be off before we arrive
- Let us know about parking and loading
- Tell us the best time to work, such as after service or at a weekend
How to get a quote
Photos are enough for some jobs, while others need a look on site. Larger sites, and anything hidden behind walls, ceilings or floors, are normally surveyed first. Either way, you get a fixed price before we start.
Read more
Honest limits
Not every problem is solved by ductwork cleaning, and we’d rather say so up front. It won’t put right:
- A duct that is too small or badly routed for the kitchen (a design issue)
- Sections that cannot be reached safely without new access (those are recorded, and panels can be fitted)
- An extract fan that has stopped working
Not sure which it is? You can call us on 0345 646 2711 or send us an email and we will tell you honestly before you book.
Parts of the system we cover
- Attenuators
- Access panels
- Horizontal duct runs
- Vertical risers
- Multi-storey ducts
- Bends and junctions
Keeping the system healthy
Think of this as the after-treatment advice, in brief:
- Tell us if grease leaks from the ductwork
- Keep access panels clear of stored items
- Diarise the next duct clean
- Store the certificate with the fire risk assessment
Keep the certificate and report with the fire risk assessment. An insurer, fire officer or EHO may ask to see it, and the pictures make the duct’s condition easy to see.
The less grease gets past the canopy, the cleaner the duct stays. Clean, properly seated filters are the duct’s best protection.
Part by part
Attenuators and discharge
The discharge is where the duct ends and air leaves the building. It can gather grease and mark the wall or roof around it, so it’s cleaned as far as safe access allows.
Access panels
Access panels are the doors that let us into the duct. Where there are none, those sections can’t be cleaned and the report has to say so.
Kitchen extracts in Datchworth
The FSA’s data shows about 7 pubs and bars registered across Datchworth and its immediate surroundings (about a mile and a half). Breakfasts, bar meals and functions all put grease into the extract wherever they’re cooked. Datchworth is covered by 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. Kitchens in Datchworth get their food hygiene inspections from East Hertfordshire council. An officer looking round a kitchen will see the canopy, and grease there is hard to miss. Keeping each certificate and photo report on file helps show the extract is looked after.
Kitchens that cook twelve hours or more a day, as some healthcare kitchens do, fall into BESA’s three-monthly minimum; Hertford County Hospital is the nearest hospital to Datchworth, about 4.9 miles south-east. Aston Bury, about 1.9 miles north, is one of the historic houses near Datchworth; if you run event catering at a venue like that, cleans can be booked between functions. School kitchens, at schools like St Michael's Woolmer Green CofE VA Primary School for example, are normally cleaned in the holidays so no lunches are lost.
Datchworth is about 4 miles north of Welwyn Garden City, in Hertfordshire. We carry out ductwork cleaning for businesses, landlords and public buildings in Datchworth and the rest of Hertfordshire. We cover 381 places across Hertfordshire, from busy centres to quieter spots. For sites nearby, see our London page, about 25 miles away.
Ductwork cleaning in SG3 is surveyed, quoted and booked the same way as anywhere else. That includes premises on Brookbridge Lane, Nutcroft and Meadow Close and the roads around them. We also cover Bull's Green (1 mile south), Woolmer Green (1 mile west), Burnham Green (1 mile south), Hook's Cross (1 mile north-east) and Tewin Wood (1 mile south). Within a short drive, we also cover Hemel Hempstead (15 miles south-west), Stevenage (4 miles north), St Albans (10 miles south-west), Bishop's Stortford (14 miles east), Welwyn Garden City (4 miles south) and Harpenden (8 miles west).
Landmarks near Datchworth
Locally, jobs take us to businesses close to The Tilbury pub and the streets around them. The nearest railway station is Knebworth station, roughly 1.6 miles north-west of the centre. A little further out are Benington Castle (3.5 miles north-east) and Datchworth Museum (within half a mile south). The countryside around Datchworth includes Mardley Heath.
What staff can safely do
In-house cleaning and specialist cleaning do different jobs. A daily filter wipe and a weekly filter wash keep grease down at the front of the system, but grease that has passed the filters is out of reach. That part needs specialist access and equipment.
Logging matters as much as cleaning. A dated log of in-house cleaning and checks helps show that the system is managed between specialist visits, next to our reports.
Also near Datchworth
Also in Datchworth
Datchworth questions
Is Datchworth within the area you cover?
Yes, smaller places are covered as well as towns. Let us know about access, parking and anything unusual about getting there when you book.
Which fire authority looks after Datchworth?
It’s Hertfordshire Fire and Rescue Service, which covers Datchworth. It’s worth keeping your fire risk assessment, TR19® certificates and photo reports together, ready to show.
Do I get a certificate for ductwork cleaning?
A full system clean comes with a TR19 certificate and a photo report. The report shows readings, pictures and any sections we couldn’t reach.
What shows that the ducts need a clean?
We measure it. Using a Wet Film Thickness Test or Deposit Thickness Test, we check the grease at set points. A mean above 200 microns, or 500 microns at any point, means it’s due.
Which accreditations do you hold?
BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease, plus CHAS, SafeContractor and ISO 9001. We have been trading since 2009 and we’re fully insured.
Can extra access doors be added to the duct?
Yes. We’ll point out where panels are needed, and we can fit them so those sections are cleaned in future.
What happens if there are not enough access panels?
We clean everything we can reach and record what we cannot. Fitting extra access panels is the usual answer, and we can do that for you.
Do we have to stop cooking while the ducts are cleaned?
The duct is cleaned out of hours, evenings, overnight or at weekends. The extract and cooking equipment need to be off.