Hertfordshire · Ductwork cleaning
Ductwork Cleaning in Hatfield
Ductwork cleaning in Hatfield from ventilation hygiene specialists trading since 2009. Out-of-hours visits and 24/7 emergency callout.
- Grease leaking from duct joints
- Stale grease odours from the duct
- A grease test showing the duct is overdue
Ductwork cleaning in Hatfield, done properly
Ductwork in Hatfield is cleaned the same thorough way as everywhere else we work: readings at set points, heavy grease scraped out by hand, then degreasing to suit the deposit. Post-clean readings and photos complete the record. If you’re dealing with smells of old cooking grease from the ductwork and duct runs that can’t be reached, we can put it right.
Most kitchens in a town like Hatfield cannot close for a day, so the work is done after service, overnight or on a closed day. The kitchen is handed back clean and ready to cook.
Duct Doctor has been trading since 2009, and we are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 are in place too, and we carry full insurance.
- Place
- Hatfield (AL10, AL9)
- Region
- Hertfordshire
- Records
- Certificate and photo report
- Quotes
- A fixed price before we start
- When we work
- When your site is closed, plus a 24/7 line
- Telephone
- 0345 646 2711
- Reviewed
- 30 October 2026
Your questions about ductwork cleaning in Hatfield
Which environmental health team covers Hatfield?
The local authority for Hatfield is Welwyn Hatfield council, and its environmental health team does the inspecting. An officer may look up into the canopy, so clean filters on the day and a recent certificate on file both help.
Do you work overnight in Hatfield?
Yes. We work evenings, overnight and at weekends. That way a site in Hatfield does not have to lose a day’s trading. When you ring 0345 646 2711, or send details by email, mention when the site is quiet.
How can I tell if my extract ducts are dirty?
Signs include grease dripping from joints, smells and a fan working harder, but measuring is the reliable way to know. Grease thickness testing shows exactly where the duct stands.
How do you clean inside the ductwork?
We survey the route, test the grease, then open the access panels. Each run and riser is scraped and degreased, then the readings are repeated.
Is there a survey before the work?
Yes, always. We diagnose before we treat: the survey shows what needs doing and what access we need and the fixed quote is built on it.
What happens to the waste?
We contain it and take it with us. We collect grease, debris and waste water as we go, so it doesn’t spread.
What about areas you cannot get to?
They’re marked on the report. Often the fix is extra access, such as new panels in ductwork, and we can fit those.
Do you offer emergency callouts?
Yes, day and night, every day of the year. Office hours are Monday to Friday, 8am to 6pm, and the emergency line covers the rest.
Grease, kitchens and Hatfield
There are about 65 cafés, restaurants and staff canteens and about 28 takeaways in and around Hatfield, up to about a mile and a half out, according to the Food Standards Agency’s register. Each kitchen that cooks under a canopy sends grease-laden air into a duct, where it cools and settles. Hatfield sits within the area of Hertfordshire Fire and Rescue Service. Grease in a kitchen extract is a recognised fire risk, and the fire authority enforces the law on managing it in most commercial premises. Kitchens in Hatfield get their food hygiene inspections from Welwyn Hatfield 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.
If you run catering at a healthcare site, such as a hospital like Queen Elizabeth II Hospital about 2.4 miles north-east, the extract may need cleaning more often than a part-time kitchen. Bursars and site managers at schools such as Bishop's Hatfield Girls' School tend to book extract cleaning for when the kitchen is empty.
Hatfield is about 4 miles east of St Albans, in Hertfordshire. Anywhere in AL10, we can take on ductwork cleaning. Our Hertfordshire coverage runs to 381 places, Hatfield among them. Our London page covers sites nearby (19 miles or so).
All of AL10 and AL9 is covered for ductwork cleaning, from busy streets to back roads. Whether your site is on Market Place, Bishop Square and Fiddle Bridge Lane or anywhere close by, our technicians can take on the work. You will find Hatfield on the A414 and B197, which makes it straightforward for our technicians to reach for out-of-hours visits. Other places close to Hatfield include Smallford (2 miles west), Colney Heath (2 miles south-west), Sleapshyde (2 miles south-west), Stanborough (2 miles north) and Cooper's Green (2 miles north-west). Larger places within reach include Watford (10 miles south-west), Hemel Hempstead (10 miles west), Stevenage (10 miles north), St Albans (4 miles west), Welwyn Garden City (3 miles north-east) and Harpenden (6 miles north-west).
Landmarks near Hatfield
Around Hatfield, our work takes us to kitchens and buildings near Stanborough Park and The Cat and Fiddle pub and the streets around them. Hatfield’s nearest station is Hatfield station, about 0.7 miles east of the centre. Well-known places in the area include Queen Elizabeth II Hospital (2.4 miles north-east) and Howard Centre (2.9 miles north-east). For a walk, there’s Colney Heath Local Nature Reserve.
Do you need ductwork cleaning in Hatfield?
The further the air travels from the cooking, the cooler it gets. Cooling air drops its grease onto the inside of the duct, so duct runs keep collecting grease long after the canopy.
What we are most often called out for:
- A grease test showing the duct is overdue
- Duct runs with no cleaning record
- Hardened, baked-on grease in long horizontal runs
- Fat dripping from the ductwork
For kitchens close to Hatfield station, where the day often starts early and ends late, the extract can be cleaned overnight.
What your quote should include
- Whether VAT is included
- 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 a written report and pictures are included
Part by part
Bends and transitions
Bends, elbows and changes of size are where grease collects most. The air slows and drops its load, so we clean these points carefully.
Horizontal duct runs
Long horizontal runs need access panels at regular intervals. Any stretch out of reach is noted and can fit extra panels.
What your team can do, and what needs us
In-house cleaning and specialist cleaning do different jobs. Wiping filters daily and washing them weekly keeps the visible parts in order, but grease that has passed the filters is out of reach. Reaching it takes a specialist with the right equipment.
Keep a record of what your team does. A dated log of in-house cleaning and checks shows an inspector that the system is looked after between visits, next to our reports.
The process
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 are in, the area is sheeted and anything that has to be off is turned off and cooled, and the work takes anything from a few hours to several visits, depending on the length of duct. Work in Hatfield is usually booked after closing, early in the morning or on a closed day.
- We start by working out how the duct runs and where it can be opened.
- Set points along the runs are tested for grease.
- Through the access panels, thick grease is removed by hand first.
- Next the ducts and risers are degreased, using whatever suits the deposit.
- Post-clean readings and photos go into the report, with any unreachable section listed.
Preparing for the visit
- Tell us about site rules, permits or sign-in
- Make sure equipment near the work can be switched off and left to cool
- Tell us where we can park and unload
Getting a quote
Quoting starts with a diagnosis, either from photos and details you send or from a site visit. After that, you get a fixed price for the work, before work begins.
Advice
Nearby places to Hatfield
Other services in Hatfield
Landlords, agents and facilities managers
We work for landlords, managing agents and facilities managers as well as the people running the site. Where a system serves more than one tenant, such as a shared riser, it helps to agree who arranges the work, and we are happy to quote for all of it.
Facilities teams in offices, schools and healthcare sites book us too across Hertfordshire. Larger estates can be phased building by building around the people who use them.
Between visits
To keep the system working properly between visits:
- Run the extract fan throughout service
- Tell us if grease leaks from the ductwork
- Ask for a grease thickness test if the kitchen gets busier
- Book the next clean before the recommended date
The report names every part of the duct that couldn’t be reached and why. We can fit access panels so those sections are cleaned next time.
Book the next duct clean before the date passes. A change in cooking hours may change the interval under BESA guidance, and grease thickness testing will show it.
Fixed quotes for ductwork cleaning in Hatfield
The quote reflects the site in front of us. We take into account:
- A single visit or a regular plan
- The number of sites or systems
- How big the system is
- Access, including roofs, risers and ceiling voids
You won’t find a price list here, because the cost depends on the site in front of us. Call for a fixed quote, and we’ll explain what it covers.
What we need to know
To speed up the quote, please include:
- Any access panels or hatches you can see
- A few general shots of the system
- Problems your staff have spotted
- How we’d reach plant on a roof or in a plant room
Quotes are quick. Call or email with a few details and you will normally have a fixed price within one working day. If we need to see the system first, we book a survey around your hours.