Hertfordshire · Extract fan cleaning
Extract fan cleaning in Dagnall, Hertfordshire
For extract fan cleaning in Dagnall, one call is all it takes, from survey to sign-off. Fully insured, with CHAS, SafeContractor and ISO 9001.
- A fan left out of previous cleans
- A fan that no longer moves enough air
- A fan coated in grease inside its housing
Extract fan cleaning in Dagnall
Every kitchen extract depends on its fan: it pulls air from the canopy, through the duct and out of the building. Grease that gets past everything else ends up on its blades and housing, and that is what we clean. Common call-outs are for a motor area thick with grease and fat spreading onto the roof or wall by the fan, across axial fans, roof-mounted fans and in-line fans.
In a small place like Dagnall, kitchens are often in older or extended buildings, with long single-storey duct runs, where grease settles in the flat sections. Access, parking and timings are agreed before the day.
Duct Doctor has been trading since 2009, and we’re 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
- Dagnall (HP4)
- Wider area
- Hertfordshire
- Reporting
- TR19® certificate and photo report
- Quote
- Fixed quote, typically within a working day
- When we work
- Out of hours as standard, 24/7 emergency line
- Telephone
- 0345 646 2711
- Page updated
- 30 October 2026

In-house cleaning or a specialist?
Staff cleaning and specialist work aren’t the same thing. 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.
Your own staff can handle the daily basics: wiping down canopy surfaces, cleaning filters and keeping a simple log. What they can’t safely do is clean inside the ductwork, the fan or the risers, which is where we come in.
Places near Dagnall
Also in Dagnall
Fixed quotes for extract fan cleaning in Dagnall
Before we fix a price, we need to know a few things. We look at:
- Any permits to work or inductions
- What state the system is in
- The times the site is available
- How many systems or sites are involved
You won’t find a price list here, because each job is priced on what it involves. For a fixed quote, phone us on 0345 646 2711 or send us an email, and we will talk you through it.
Asking for a quote
To help us quote quickly, send us:
- Close-ups of filters, grilles, hatches or access panels
- When the site is open and when it’s quiet
- Photos showing the whole system and its surroundings
- The site address and the type of premises
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.
Do you need extract fan cleaning in Dagnall?
Grease on a fan is a fire risk, in Dagnall as anywhere. A fire in the duct can reach the fan and the grease around it, and a hot, struggling motor does not help.
Most sites get in touch after spotting one of these:
- Less air being pulled from the kitchen
- A fan left out of previous cleans
- A fan coated in grease inside its housing
- Vibration from an unbalanced impeller
Healthcare kitchens can’t easily close, so their extracts are cleaned overnight or between meal services; the nearest hospital to Dagnall is Luton and Dunstable Hospital, about 5.3 miles north-east.
Comparing quotes
- Whether the price is fixed
- Whether inaccessible sections are listed on the report
- Whether the whole system is included, or only the parts that are easy to reach
- Whether the quote shows VAT
Extract fan cleaning around Dagnall
The FSA’s data shows about 3 pubs, bars and clubs registered across Dagnall and its immediate surroundings (about a mile and a half). A pub or hotel kitchen that cooks every day builds up grease in its extract like any other. The fire and rescue service for Dagnall is Hertfordshire Fire and Rescue Service. Fire and rescue authorities enforce the Fire Safety Order in most non-domestic premises, and in a kitchen that fire risk includes the grease in the extract. It’s Buckinghamshire council that sends environmental health officers to food businesses in Dagnall. Extraction counts as kitchen equipment, so its condition can come up on the day. Before-and-after pictures from each clean are a simple way to show the extract is in hand.
If you run a church or community hall kitchen, near Church of All Saints or elsewhere in Dagnall, its extract still collects grease from every lunch and event. Bursars and site managers at schools such as Dagnall VA Church of England School tend to book extract cleaning for when the kitchen is empty.
Dagnall is in Hertfordshire. Dagnall gets the same approach as every site we work on: diagnosis first, a fixed price, out-of-hours working where necessary and a written report with pictures. Our Hertfordshire coverage runs to 381 places, and Dagnall is one of them. There’s also a page for Milton Keynes, roughly 16 miles from Dagnall.
Work in HP4 follows the same survey, fixed quote and written report as everywhere else we cover. We cover sites on Deans Meadow, Dunstable Road and Nelson Road and nearby roads. Main roads around Dagnall include the B440, so getting to you is simple for extract fan cleaning. Neighbouring places we cover for extract fan cleaning include Ringshall (2 miles south), Little Gaddesden (2 miles south) and Hudnall (2 miles south). Further out, we also cover Watford (14 miles south-east), Hemel Hempstead (7 miles south-east), St Albans (12 miles south-east), Harpenden (9 miles east), Hitchin (15 miles north-east) and Hatfield (15 miles east).
Local landmarks in Dagnall
The nearest railway station is Tring station, about 3.7 miles south-west of the centre. Well-known places in the area include Pitstone Green Museum (3.5 miles west) and Luton and Dunstable Hospital (5.3 miles north-east). Not far away are Ivinghoe Beacon and Sallowsprings.
Honest limits
Extract fan cleaning cannot fix everything, and we’ll tell you before any work starts. It won’t put right:
- A motor that has burnt out
- Grease in the duct and canopy before the fan (those need a full TR19 clean)
- An impeller that’s bent or split
Not sure which it is? You can phone us on 0345 646 2711 or send us an email and we will tell you honestly before you book.
What the work covers
- Axial fans
- In-line fans
- Centrifugal fans
- Discharge points
- Fan housings
- Roof-mounted fans
Managing agents and facilities teams in Dagnall
If you look after several sites, we can schedule visits across all of them on one quote. Every building has its own written report, so each one has its own record.
Managing agents often deal with us directly. Tell us the site, the work and the access arrangements, and we’ll send a fixed quote.
Common questions in Dagnall
Do you work overnight in Dagnall?
Yes, out-of-hours work is a big part of what we do. It means the site in Dagnall keeps running as normal. Tell us your opening hours when you ask for a quote.
Which fire and rescue service is responsible for Dagnall?
It’s Hertfordshire Fire and Rescue Service, which covers Dagnall. TR19® isn’t law, but it’s the benchmark many fire officers and insurers look to when they ask how often the extract is cleaned.
What do you do to protect the area?
By covering it before any work starts. We keep the work contained and clean down when we finish.
Is the fan isolated during cleaning?
The fan is isolated before we open it, so it can’t start while we work. That means the extract is off, so we clean while the kitchen is closed.
Do you work with multi-site operators?
Yes. You deal with one contact for every site across London and the South East, and visits can be set on a regular cycle.
What does extract fan cleaning cost?
The cost depends on the size of the system, its condition, access and timing. Ask us for a fixed quote and we will usually reply within one working day.
Will we have to shut during the visit?
Usually not. Booking the work out of hours means the site can carry on as normal. Bigger sites can be done in stages so parts stay in use.
Is TR19 a legal requirement?
No, not in itself. Insurers, fire officers and EHOs look to TR19® as the benchmark, and many insurance policies ask for proof of TR19® cleaning. The law behind it is the Fire Safety Order 2005 in England and Wales.
How the visit works
On the day, we arrive at the time agreed with you, which is often after service, overnight or at a weekend. Equipment that has to be off is switched off and allowed to cool first, and floors and nearby surfaces are sheeted. On site, it takes a few hours where there are several fans or heavy deposits. If the van will struggle with a lane or gateway near Dagnall, let us know and we’ll plan around it.
- 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.
- We clean the casing, the outlet and around the motor.
- We run the fan and note its condition in the photo report.
Before we arrive
- Move anything stored near the system
- Let us know about parking and loading
- Agree a time when the area can be out of use
Get a fixed quote
Here’s what helps us quote: the address, the type of site and when it’s open, pictures of the system and the last certificate or report, if there is one. Then give us a ring on 0345 646 2711 or use the quote form.
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What the work involves, part by part
Impellers and blades
A clean impeller shows any damage: chips, distortion or wear. We note any concerns.
Inline duct fans
Hidden in a ceiling void, an inline fan is easily missed. The survey makes sure it’s part of the clean.