Hertfordshire · Extract fan cleaning
Datchworth extract fan cleaning
We cover Datchworth for cleaning of kitchen extract fans, impellers, fan housings and discharge points. Out-of-hours visits, a fixed quote and a written report with photos as standard.
- A fan left out of previous cleans
- A fan shaking on its mounts
- Burning smells from the fan area
About our extract fan cleaning in Datchworth
We have been trading since 2009. As a BESCA Vent Hygiene Elite member, we clean to BESA TR19® Grease, with CHAS, SafeContractor and ISO 9001 and full insurance. The work covers fan housings, centrifugal fans and in-line fans, and common reasons people get in touch are a fan that hums, whines or rumbles and weak extraction at the canopy.
Work in a small place like Datchworth starts with a call to agree access and timings, and the clean itself is the same full TR19® job as in any town: canopy, filters, duct, fan and discharge, with a certificate and photo report at the end.
It’s worth checking any contractor’s accreditations. We are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we hold CHAS, SafeContractor and ISO 9001, with full insurance on top.
- Where
- Datchworth (SG3)
- Region
- Hertfordshire
- Reporting
- Certificate plus before-and-after pictures
- Price
- A fixed quote up front
- Working hours
- After hours by arrangement; emergencies any time
- Phone
- 0345 646 2711
- Updated
- 30 October 2026
What happens if it’s left?
An unbalanced fan gets worse, not better. It wears bearings and mounts and can lead to a breakdown, which may leave the kitchen without extraction. A planned clean beats an emergency. In a place like Datchworth, ductwork and fans are easy to forget until something goes wrong.
The cost depends on how big the system is, what state it’s in and access to every part of it. You get a fixed price before any work starts, so there are no surprises.
Why choose Duct Doctor in Datchworth
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
- A single point of contact for sites across the South East and London
- Fixed quotes from a survey or photos
- Every job surveyed first
Extract fan cleaning in Datchworth: the local picture
The FSA’s data shows about 7 pubs and bars registered within 1.5 miles or so of the middle of Datchworth. Breakfasts, bar meals and functions all put grease into the extract wherever they’re cooked. Datchworth is covered by 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 Datchworth get their food hygiene inspections from East Hertfordshire council. The cleanliness of the kitchen and its equipment, extraction included, is part of what they check. A dated certificate in the maintenance file answers the question before it’s asked.
Healthcare kitchens, like those at hospitals such as Hertford County Hospital (about 4.9 miles south-east), often cook for long hours, which puts them in BESA’s heavier-use bands. Older buildings often hide long, awkward duct runs, and if you run a kitchen at a historic venue in the area (Aston Bury is about 1.9 miles north), access may need planning. Term dates shape school work: for a school like St Michael's Woolmer Green CofE VA Primary School, an extract clean fits neatly into a half-term or summer break.
Datchworth is about 4 miles north of Welwyn Garden City, in Hertfordshire. If you need extract fan cleaning in Datchworth, please call 0345 646 2711, or send details by email for a fixed quote. Our area covers London and the South East, Datchworth included. Datchworth is one of 381 places in Hertfordshire where we work for extract fan cleaning. You can also see our page for London, roughly 25 miles from Datchworth.
Extract fan cleaning in SG3 follows the same survey, fixed quote and written report as everywhere else we cover. If you need extract fan cleaning at premises on Brookbridge Lane, Nutcroft and Meadow Close or anywhere close by, we can help. If your site is just outside Datchworth, we 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).
Near you in Datchworth
In Datchworth, that means kitchens and buildings near The Tilbury pub. Datchworth’s nearest 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). Green spaces nearby include Mardley Heath.
Nearby places to Datchworth
More services for Datchworth
How the job changes from site to site
Impellers and blades
The impeller is the spinning part that moves the air, and it collects grease unevenly. An uneven coating throws it off balance, so it’s cleaned carefully blade by blade.
Kitchens with long cooking hours
When a busy kitchen’s fan fails, cooking stops. A clean fan is less likely to strain, and our 24/7 emergency callout is there if it happens anyway.
How we price extract fan cleaning
Sites vary more than people expect. What affects the quote:
- The size of the system
- Site requirements such as sign-in and permits
- The condition we find in the survey
- Where the site is and how we reach it
A single site or a whole portfolio, we price it on the same basis: what needs doing, how we get to it and when. The price is fixed before we start.
Asking for a quote
Many jobs can be priced from photos and some basics. Send what you can of the following:
- Any previous report or certificate
- How we’d reach plant on a roof or in a plant room
- The postcode and the type of business
- Problems your staff have spotted
Need a price for extract fan cleaning? Please give us a ring on 0345 646 2711 or send us an email with a few details about the site. We will explain what we’d do and send a fixed quote before anything is booked.
Looking after it afterwards
Simple habits between visits make a real difference. Our advice:
- Report grease escaping from the fan
- Check the report shows the fan was cleaned
- Note any drop in extraction at the canopy
- Notice when the fan starts to sound different
Once it’s clean, the fan is closed up and run to check it’s working smoothly. Anything we notice, like noise, vibration or a worn part, goes on the report, so you can plan any repair.
A change in how the fan sounds is worth noting. New noise or vibration often means grease is building on the impeller and early action can save a repair.
What we do, step by step
Our technicians bring everything the work needs, from protective sheeting to tools and access equipment. You only need to give us clear access and switch off what needs to be off. The visit takes a couple of hours per fan, depending on its size and the build-up. We agree a date with you, plan the drive to Datchworth and turn up when the site is quiet.
- First we check the fan’s condition and how it sounds.
- With the fan isolated, the housing is opened.
- Each blade is cleaned so the impeller runs evenly.
- Housing, outlet and the area around the motor are cleaned.
- The fan goes back into service with a report on its condition.
How to prepare
- Agree a time when the area can be out of use
- Have your last certificate or report to hand
- Move anything stored near the system
How to get a quote
Getting a quote does not take long. Call or email with a few details and you’ll typically have a fixed price within one working day. Where a survey is needed, we arrange a time that suits the site.
Advice
Questions from Datchworth
Who enforces fire safety at workplaces in Datchworth?
Hertfordshire Fire and Rescue Service is the fire and rescue service for Datchworth. TR19® is not law, but it’s the benchmark many fire officers and insurers look to when they ask how often the extract is cleaned.
Do you cover smaller places like Datchworth?
Yes, smaller places are covered as well as towns. Just mention lanes, gates or anything else about the site when you book.
What is TR19?
TR19® is BESA’s specification for ventilation hygiene. TR19® Grease, a standalone specification since 2019, covers grease in kitchen extract systems, and TR19® Air covers general supply and extract systems.
Where does the waste go?
We take it away when we go. During the work, it’s contained to keep the area clean.
Can the fan be cleaned between full cleans?
Yes, if the fan needs it. A coated fan often means the duct before it is coated too, but the choice is yours.
What information do you need?
Where the site is, what it is and when it’s open, along with a few pictures and any previous report.
Why has my extract fan got louder?
A common cause is grease. Grease collects unevenly and unbalances the impeller, causing vibration and noise. If cleaning does not, the bearings or motor may need attention.
Which kinds of sites do you work on?
We work for restaurants, pubs, hotels, schools, colleges, hospitals, care homes, offices and shops, plus food production and leisure sites.
Honest limits
To be straight with you, some problems need a different fix:
- A cracked or broken impeller (it needs replacing)
- A dirty duct upstream of the fan
- A fan that is too small for the system (a design question)
If you are not sure, just phone us on 0345 646 2711 or drop us a line and we’ll give you a straight answer.
What we work on in Datchworth
- Fan housings
- Roof-mounted fans
- Axial fans
- In-line fans
- Centrifugal fans
- Discharge points
What staff can safely do
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, alongside our reports.
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. That part needs specialist access and equipment.