Hertfordshire · Ductwork cleaning
Ductwork cleaning in Westmill, Hertfordshire
Cleaning of kitchen extract ductwork, horizontal runs and vertical risers through access panels in Westmill, surveyed first and signed off with a written report and photos. Ask us for a fixed quote.
- Proof of duct cleaning for the insurer
- Stale grease odours from the duct
- Duct runs with no cleaning record
Ductwork cleaning in Westmill, done properly
Between the canopy and the fan runs the ductwork, hidden above ceilings and inside walls. Grease settles along every metre of it, and that is 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 proof of duct cleaning for the insurer and grease pooling at the foot of the riser, we can help, from horizontal duct runs, attenuators and multi-storey ducts onwards.
In a smaller place like Westmill, the kitchens with extract systems are more likely to be a pub, a café, a takeaway or a school or care home kitchen than a big restaurant. A kitchen that cooks fewer hours still builds up grease, so cleaning is planned around how much it cooks and what the readings show.
Duct Doctor has been trading since 2009, as a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 are in place too, and we are fully insured.

- Place
- Westmill (SG5)
- Region
- Hertfordshire
- Reporting
- Certificate and photo report
- Quote
- A fixed quote up front
- When we work
- After hours by arrangement; emergencies any time
- Telephone
- 0345 646 2711
- Last updated
- 30 October 2026
What the work involves, part by part
Vertical risers
In taller buildings, a riser may pass through several floors and fire compartments, so fire dampers may be fitted where it crosses them. We test those as a separate job.
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.
Keeping the system healthy
How long the results last depends on use and care. Here’s what we suggest:
- Never cook with a filter missing
- Consider fitting panels where the report shows gaps
- Do not block access panels with shelving or stock
- Check readings when the menu changes
After the clean, the same points are tested again, giving you before and after readings. Before and after pictures sit next to the numbers.
Grease that never reaches the duct never needs cleaning out of it. Clean, properly seated filters are the duct’s best protection.
Also in Westmill
Why act early in Westmill
Dealing with the ductwork in Westmill now beats dealing with it after a problem. It takes a shift or more, depending on the length of the runs and the number of access points, done out of hours so the kitchen keeps cooking. When a site near Westmill shuts unexpectedly, the people who rely on it notice at once.
Kitchens, offices, schools and hospitals are all priced the same way: the size of the job, access, condition and working hours. Ask for a fixed quote and we’ll explain each part.
Why book with us
- Full insurance on every job
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
- Work around your opening hours, with 24/7 emergency cover
- A fixed price before any work starts
Read what affects the cost or our accreditations and certificates.
When something else is needed
We’ll always give you a straight diagnosis, so here’s what this work can’t put right:
- A worn-out fan that needs replacing
- A damper stuck open in the duct
- Parts of the duct with no way in
If in doubt, give us a ring on 0345 646 2711 or email us and we’ll say what we think before booking.
Where we work
- Multi-storey ducts
- Attenuators
- Bends and junctions
- Access panels
- Vertical risers
- Horizontal duct runs
How we price ductwork cleaning
A fixed price needs a few facts first. We look at:
- The number of sites or systems
- A single visit or a regular plan
- Site requirements such as sign-in and permits
- How big the system is
Every site is different, so we price each one individually. The size of the job, how we reach it, its condition and the working hours all play a part.
Helping us quote
To help us quote quickly, please include:
- Close-ups of filters, grilles, hatches or access panels
- Your opening hours and when the area is out of use
- Wide photos of the system and the area around it
- Anything you’ve noticed, such as smells, noise, drips or poor airflow
Want a quote for ductwork cleaning? Please ring 0345 646 2711 or send us an email and tell us about the site. We’ll talk you through the work and send you a fixed quote before you commit to anything.
What ductwork cleaning looks like in Westmill
The FSA’s food hygiene register shows about 93 cafés, restaurants and staff canteens and about 34 sandwich bars and takeaways in and around Westmill, up to about a mile and a half out. Wherever those kitchens cook under a canopy, the horizontal runs and risers need cleaning as well as the hood. Hertfordshire Fire and Rescue Service covers Westmill. The Fire Safety Order puts the duty on whoever runs a kitchen to control its fire risk, and a greasy duct is fuel. Food hygiene inspections in Westmill 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 TR19® certificate and photo report after each clean gives you a record to show an inspector.
If you run catering at a healthcare site, such as a hospital like Fairfield Hospital about 3.5 miles north-east, the extract may need cleaning more often than a part-time kitchen. For schools such as Oughton Primary and Nursery School, kitchen extract cleaning is normally booked for the holidays, when the canteen is closed. A hall kitchen that only cooks for events, whether near St Mark's or elsewhere in Westmill, still needs its extract cleaned, just less often.
Westmill is about 1 mile north-west of Hitchin, in Hertfordshire. If you need ductwork cleaning in Westmill, it’s easy to get a fixed quote: please ring 0345 646 2711, or send details by email. We work across South East England and London, including Westmill. We cover 381 places across Hertfordshire, large and small. For sites nearby, see our Milton Keynes page, about 21 miles away.
Postcode districts we cover here for ductwork cleaning: SG5. If you need ductwork cleaning at premises on Lucas Lane, Gaping Lane and Bingen Road or a nearby road, we can help. You will find Westmill on the A600, so it’s easy for us to get to for out-of-hours visits. Other places close to Westmill include Bearton (1 mile east), Hitchin (1 mile south-east), Ickleford (1 mile north), Benslow (1 mile south-east) and Charlton (1 mile south). We also work in nearby towns such as Stevenage (6 miles south-east), St Albans (14 miles south), Welwyn Garden City (12 miles south), Harpenden (10 miles south), Hatfield (14 miles south) and Hertford (14 miles south-east).
Around Westmill
We work in commercial kitchens and buildings around Sir John Barleycorn pub, St Mary's Church and The Priory School, among other places. The nearest railway station is Hitchin station, roughly 1.2 miles east of the centre. Well-known places in the area include Fairfield Hospital (3.5 miles north-east) and North Hertfordshire Museum (0.7 miles south-east). For a walk, there’s Markham's Hill and Oughtonhead Nature Reserve.
What staff can safely do
Some jobs should never be done in-house: entering ducts, working on fans, testing dampers and taking grease readings need training, the right equipment and safe access. Leave those to us.
When your team notices a problem between visits, such as dripping grease, a noisy fan, a smell or a filter that won’t come clean, they should report it rather than try to fix it. We can diagnose it and quote.
FAQs for Westmill
Can school kitchens in Westmill be cleaned in the holidays?
Yes, holiday work suits schools best. The FSA’s register shows about 13 schools and colleges with food registrations within roughly a mile and a half of Westmill. You can call us on 0345 646 2711 or send us an email with the dates the site is empty.
Is Westmill within the area you cover?
Yes, smaller places are covered as well as towns. Photos of the system and directions to the site help us plan the visit.
Do you offer maintenance contracts?
Yes, of course. Tell us what you have and how it’s used, and we’ll suggest a schedule and quote for it.
What paperwork do you give after a duct clean?
A photo report, with readings and before and after photos, plus a TR19 certificate for a full system clean. The report says when the next clean is due.
What do you need from me for a quote?
Some photos and a quick description of the system, with the address and opening hours. We will ask for anything else we need.
What if part of the duct can’t be reached?
We clean everything we can reach and record what we cannot. Extra panels can be installed, and we can do that for you.
Can you quote from photos?
Often, yes. With good pictures, the site type and your last report, we can price many jobs. Where we can’t see enough, we arrange a survey.
What’s TR19?
It’s the industry benchmark for cleaning ventilation and kitchen extract systems, written by BESA. It sets out inspection, cleaning and record keeping, and it takes a risk-based approach.
How it works
There’s very little for your team to do on the day. Someone lets us in at the agreed time and shows us where everything is, and the rest is down to us. Afterwards, the area is left tidy and the written report follows. In a place like Westmill, we fit the visit around your hours.
- The duct route is surveyed and every access point found.
- Grease thickness is measured at set points.
- Once the kitchen has closed, we protect the area and open the panels.
- Thick grease is scraped out, then the runs and risers are degreased.
- We close up, re-test, photograph and record anything out of reach.
Before we arrive
- Arrange a key holder or contact on site
- Dig out any earlier paperwork for the system
- Clear loose items from the work area
Getting a quote
Photos are the quickest way to a quote: 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.