Hertfordshire · Extract fan cleaning
Extract fan cleaning in Preston, Hertfordshire
Extract fan cleaning across Preston and nearby, booked around your opening hours and finished with a written report and pictures.
- Grease around the motor and its mounts
- A fan that has never been cleaned
- Grease escaping from the fan outlet
How we handle extract fan cleaning in Preston
A clean fan isn’t a repaired fan. Anything that looks worn or damaged goes on the report and fan repair or replacement is something we also do. You’ll know whether the fan just needed cleaning or something more. The work covers axial fans, discharge points and in-line fans, and the jobs we see most are a fan shaking on its mounts and fat spreading onto the roof or wall by the fan.
Rural kitchens often have long, low duct runs through a roof space or along an outside wall, and those horizontal sections are where grease settles. Access, parking and timings are agreed before the day.
Every visit ends with a written report and pictures, so there’s a dated record of the work. Kitchen extract cleaning to TR19® Grease is certificated through the BESCA Vent Hygiene Elite portal.
- Place
- Preston (SG4)
- Region
- Hertfordshire
- Records
- TR19® certificate and photo report
- Quotes
- A fixed price before any work starts
- Working hours
- Out of hours as standard, 24/7 emergency line
- Phone
- 0345 646 2711
- Page updated
- 30 October 2026
Leave it or put it right?
The fan is part of the fire path. A TR19 clean that left out the fan wouldn’t cover the whole system, and insurers asking for TR19 cleaning expect the full system. Equipment tucked in a roof space or outbuilding near Preston rarely gets looked at unless someone books it.
We don’t list prices on the website, because each job is priced on what it involves. For a fixed quote, ring 0345 646 2711 or drop us a line, and we will talk you through it.
Why choose Duct Doctor in Preston
- In business since 2009
- Out-of-hours work and a 24/7 emergency line
- Accredited under CHAS and SafeContractor, with ISO 9001
- We’re fully insured
Take a look at how cleaning jobs are priced or how to check a contractor.
Towns and villages near Preston
What else we do in Preston
Preston questions
Can you come to Preston after we close?
Yes, evening, overnight and weekend work is normal for us. That way a site in Preston does not have to lose a day’s trading. Tell us your opening hours when you ask for a quote.
Which fire and rescue service is responsible for Preston?
Preston is in the area of Hertfordshire Fire and Rescue Service. A recent cleaning certificate and a note of the next clean date show that grease in the extract is being managed.
What does TR19 mean?
TR19® is BESA’s specification for ventilation hygiene. Since 2019, TR19® Grease has been a standalone specification for grease in kitchen extract systems, and TR19® Air covers general supply and extract systems.
Can you come out in an emergency?
Yes. Our emergency line runs 24/7, for problems that can’t wait. Call us any time and explain what’s happened.
Who is responsible for fire safety on the premises?
The Fire Safety Order 2005 calls them the responsible person: often the employer, owner or occupier. Landlords, facilities managers and managing agents can also hold responsibility.
What should I send you?
The site address, the type of premises and your opening hours, plus photos of the system and your last certificate or report if you have one.
What about areas you cannot get to?
They’re listed in the report, never skipped quietly. The report says which parts couldn’t be reached and why, along with a quote to put access in.
Do you provide a report after cleaning the fan?
A photo report, including the fan’s condition and the next clean date. File it with your other extract records.
What we are called out for in Preston
A fan on a roof or hidden in a ceiling void is easy to forget. If it wasn’t included in past cleans, it may hold years of grease, and the report will show it.
The symptoms we’re asked about most include:
- Grease stains around the discharge
- Hot, greasy smells near the fan
- A fan that hums, whines or rumbles
- A fan that has never been cleaned
If your kitchen is in a listed or historic building, like the houses around Preston (Knebworth House is about 3.9 miles south-east), fitting access panels needs care.
Before you book anyone
- Whether the figure could change on the day
- What’s included in the scope, part by part
- Whether the quote is based on a survey or photos
- When they can work, and whether that is outside your opening hours
Landlords, agents and facilities managers
Where a tenant occupies the premises but the landlord owns the building, the lease normally sets out who maintains what. We can quote either party and send the paperwork to whoever needs it.
Running several sites is easier with one contractor. We work across London and the South East, so visits at different addresses can be planned together and kept to a regular schedule.
When something else is needed
We’d rather tell you now than book work that will not help, so these are the things it will not cover:
- Grease in the duct and canopy before the fan (those need a full TR19 clean)
- A fan that’s too small for the system (a design question)
- Electrical faults in the fan’s supply or controls (an electrician’s job)
If you are not sure, just phone us on 0345 646 2711, or email photos and we will give you a straight answer.
What the work covers
- In-line fans
- Roof-mounted fans
- Discharge points
- Centrifugal fans
- Fan housings
- Axial fans
Different parts, different methods
Impellers and blades
While the impeller is clean, we can see its condition: cracks, bent blades or wear. We note any concerns.
Wall fans
The wall around a wall fan can be stained with grease. The outlet is checked as well as the fan.
Kitchen extracts in Preston
The Food Standards Agency lists about 4 pubs, bars and clubs as registered food businesses within 1.5 miles or so of the middle of Preston. Where they serve hot food, their kitchen extracts need cleaning to TR19® like any restaurant’s. It’s North Hertfordshire council that sends environmental health officers to food businesses in Preston. A greasy canopy or dripping filters are the sort of thing an inspection can pick up. A TR19® certificate and photo report after each clean gives you a record to show an inspector. Preston sits within the area of 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.
Where a hall near Church of St Martin, or anywhere in Preston, hosts lunch clubs or events, its extract gathers grease just as a café’s does. For schools such as Preston Primary School, kitchen extract cleaning is typically booked for the holidays, when the canteen is closed.
Preston is about 3 miles south of Hitchin, in Hertfordshire. Every kind of commercial site in Preston, extract fan cleaning is something we can help with. Visits can be booked for evenings, overnight or weekends so the site keeps running. Our Hertfordshire coverage runs to 381 places, Preston among them. There’s also a page for Milton Keynes, about 22 miles away.
Here we cover the SG4 postcode area for extract fan cleaning. If you need extract fan cleaning at premises on The Green, Church Lane and School Lane or anywhere close by, we can help. Neighbouring places we cover for extract fan cleaning include Temple Dinsley (1 mile east), Poynders End (1 mile east), Langley End (1 mile south-east), Little Almshoe (1 mile north-east) and St Ibbs (1 mile north-east). We also work in nearby towns such as Hemel Hempstead (13 miles south-west), Stevenage (4 miles east), St Albans (11 miles south), Welwyn Garden City (9 miles south-east), Harpenden (7 miles south-west) and Hitchin (3 miles north).
Near you in Preston
In Preston, that means kitchens and buildings near The Red Lion Public House, among other places. Preston’s nearest station is Hitchin station, about 3.2 miles north. A little further out are North Hertfordshire Museum (2.8 miles north) and Lister Hospital (3.3 miles east). Not far away are Purwell Ninesprings and Markham's Hill.
Between visits
To keep the system working properly between visits:
- Keep the grease filters clean and in place
- Report rattles or humming early
- Do not turn the fan off mid-service
- Keep access to the fan clear
File the photo report with your other extract records. It shows the fan’s condition at the time of the clean, which helps if anything changes later.
Keep the whole system on its cleaning cycle. Regular full cleans keep the fan from building up heavy deposits, in line with BESA guidance.
What we do, step by step
Everything the job needs comes with us, 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 few hours where there are several fans or heavy deposits. In a small place like Preston, the journey is planned ahead and the visit arranged around the site’s hours.
- We find the fan and check how it’s reached and how it’s isolated.
- Power to the fan is isolated before anyone touches it.
- Grease is scraped from the impeller blades and the inside of the housing.
- The fan and its surrounds are degreased, keeping clear of the motor’s electrics.
- We reassemble, run the fan and photograph the result.
How to prepare
- Let us know how we reach the system, including roofs, risers and plant rooms
- Let us know about permits to work or site inductions
- Let us know about parking and loading
How to get a quote
Getting a quote does not take long. Send a few details and pictures, and we typically reply with a fixed quote within one working day. If we need to see the system first, we book a survey around your hours.