Hertfordshire · Extract fan cleaning

Extract fan cleaning in Farnham, Hertfordshire

For extract fan cleaning in Farnham, one call is all it takes: survey, fixed quote, work and sign-off. Fully insured, with CHAS, SafeContractor and ISO 9001.

  • A smell of hot grease from the extract
  • Weak extraction at the canopy
  • A heavily greased fan housing

Extract fan cleaning across Farnham

Extract fan cleaning for kitchens and businesses in Farnham

Not all extract fans are the same: fans on the roof, fans built into the duct run, and fans on an outside wall. Each is isolated and opened in its own way, and we plan that during the survey. If you’re dealing with a fan left out of previous cleans and a noisy fan that has got louder over time, we can help.

In a small place like Farnham, 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.

We have 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 are fully insured.

Place
Farnham (CM23)
Region
Hertfordshire
Paperwork
Certificate and photo report
Quote
Fixed quote, usually within a working day
When we work
Overnight and weekend work, 24/7 emergency callout
Phone
0345 646 2711
Updated
30 October 2026
The Duct Doctor team standing beside their branded white and blue vans

When it’s something else

It’s worth knowing the limits before booking:

  • Grease in the duct and canopy before the fan (those need a full TR19 clean)
  • An impeller that is bent or split
  • A failed motor or worn bearings (that needs a fan repair or replacement)

If you’re not sure, just call us on 0345 646 2711 or send us an email and we will give you a straight answer.

Where we work

  • Centrifugal fans
  • Discharge points
  • Axial fans
  • Roof-mounted fans
  • In-line fans
  • Fan housings

Different parts, different methods

Inline duct fans

Inline fans can be in tight spaces, so the method is planned in advance. Anything out of reach is recorded.

Roof-mounted fans

Many kitchen extracts end at a fan on the roof. They’re cleaned where safe access allows, with any limits noted.

Grease, kitchens and Farnham

The FSA’s food hygiene register includes about 3 bars, pubs and nightclubs in Farnham and the streets around it, up to about 1.5 miles out. Breakfasts, bar meals and functions all put grease into the extract wherever they’re cooked. Fire safety in Farnham falls to Hertfordshire Fire and Rescue Service. Its fire safety officers can audit commercial kitchens, and grease in the extract is part of a kitchen’s fire risk. Kitchens in Farnham get their food hygiene inspections from Uttlesford council. Extraction counts as kitchen equipment, so its condition can come up on the day. Before-and-after photos from each clean are a simple way to show the extract is in hand.

A hall kitchen that only cooks for events, whether near Church of St Mary the Virgin or elsewhere in Farnham, still needs its extract cleaned, just less often. Healthcare kitchens, like those at hospitals such as Herts and Essex Hospital (about 2.8 miles south-east), often cook for long hours, which puts them in BESA’s heavier-use bands. If you look after a school kitchen, at a school such as Farnham Church of England Primary School or anywhere near Farnham, the holidays are the usual time for a TR19® clean.

Farnham is about 2 miles north of Bishop's Stortford, in Hertfordshire. Anywhere in CM23, we cover extract fan cleaning for commercial sites. 381 places in Hertfordshire are on our list, from busy centres to quieter spots. You can also see our page for Chelmsford, about 19 miles away.

Work in CM23 is surveyed, quoted and booked the same way as anywhere else. If your site is just outside Farnham, we cover Uppend (1 mile north), Mount Pleasant (1 mile north), Manuden (2 miles north-east), Bentfield Green (2 miles east) and Stansted Mountfitchet (2 miles east). We also work in nearby towns such as Stevenage (14 miles west), Hoddesdon (12 miles south-west), Hertford (12 miles south-west), Ware (10 miles south-west), Baldock (15 miles north-west) and Broxbourne (13 miles south-west).

Local landmarks in Farnham

In Farnham, that means kitchens and buildings near St Mary's Catholic School. The closest station to Farnham is Stansted Mountfitchet station, roughly 2.4 miles east. Nearby you’ll also find Moated mound (1.7 miles south-west) and Herts and Essex Hospital (2.8 miles south-east). Not far away are Portingbury Hills and Aubrey Buxton Nature Reserve.

Map of Farnham © OpenStreetMap contributors

Landlords, agents and facilities managers

Landlords, managing agents and facilities managers book us, not only the businesses that use the systems. Where a system serves more than one tenant, such as a shared riser, it helps to agree who arranges the work, and we can quote for the whole system.

Records are where multi-site compliance often slips. Each visit ends with a dated report and photos, ready to show insurers, fire officers or EHOs.

Looking after it afterwards

Good habits slow the build-up between visits. Our tips:

  • Flag smoke lingering at the canopy
  • Notice when the fan starts to sound different
  • Never cook with a filter missing
  • Watch for grease marks around the outlet

When the fan is cleaned as part of a full TR19® Grease clean, a TR19 certificate is issued through the BESCA Vent Hygiene Elite portal. A fan-only clean is recorded in the photo report.

Keep the whole system on its cleaning cycle. Regular full cleans keep the fan from building up heavy deposits, in line with BESA guidance.

Your questions about extract fan cleaning in Farnham

Can the work in Farnham be done at night or at weekends?

Yes. We work evenings, overnight and at weekends. That way a site in Farnham doesn’t have to lose a day’s trading. Let us know the hours you’re closed and we’ll book within them.

Who carries out food hygiene inspections in Farnham?

That is Uttlesford council, whose environmental health officers carry out food hygiene inspections in Farnham. Have your latest TR19® certificate and photo report to hand, as an officer may ask how the extract is maintained.

What happens to the waste?

We contain it and take it with us. Grease, debris and waste water are collected as the work goes on rather than letting it spread.

What should I send you?

The site address, the type of premises and your opening hours, along with a few pictures and any previous report.

Which accreditations do you hold?

Our accreditations are CHAS, SafeContractor and ISO 9001, alongside BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease. The Vent Hygiene Elite scheme is run by BESCA and audited independently.

Who has the legal duty for fire safety?

That depends on who controls the premises. The Fire Safety Order 2005 puts the duty on the responsible person, which can be the employer, the owner, a landlord, an FM or a managing agent.

How do you keep the site clean during the work?

We cover floors and nearby surfaces with sheeting before any work starts, and anything we remove is contained. Before we leave, we tidy up and clean down.

Can we book visits on a schedule?

Yes. Regular plans can run on 3, 6 or 12-monthly cycles, depending on what the system needs.

How the visit works

At the end of the visit, someone from your team can look over the work with us. We point out anything that couldn’t be reached or needs a follow-up, and the same goes into the written report. All told, the work takes an hour or two for most single fans. In a small place like Farnham, the journey is planned ahead and the visit arranged around the site’s hours.

  1. First we check the fan’s condition and how it sounds.
  2. Once isolated, we open the fan up.
  3. Each blade is cleaned so the impeller runs evenly.
  4. We clean the casing, the outlet and around the motor.
  5. We run the fan and note its condition in the photo report.

How to prepare

  • Allow time for equipment near the work to be turned off and cool down
  • Find the previous report, if there is one
  • Clear the space around the work

Getting a quote

Photos are the quickest way to a quote: wide shots of the system, close-ups of anything that worries you and how we’d get to it. Add the site type and your opening hours, and we can price many jobs without a visit.

Ask for a quote

Advice

Why act early in Farnham

Cleaning the fan in Farnham now is a short job: the work takes a couple of hours per fan, depending on its size and the build-up. Leaving it means more wear, more noise and a bigger clean later. Systems in rural buildings are often out of sight and out of mind.

When the work has to happen, how we reach it and how big the site is can all change the price. We take each of them into account, and the price is fixed before we start.

Why us?

  • A written report with photos after each visit
  • In business since 2009
  • One contact for all your sites in London and the South East
  • Fully insured

See how cleaning jobs are priced and our accreditations.

How we price extract fan cleaning

You’ll get a fixed price before work begins. It’s based on:

  • The number of sites or systems
  • The scale of the work
  • How easy every part is to reach
  • Any permits to work or inductions

Leaving it longer rarely makes the work cheaper. Build-up, wear and faults tend to get worse, not better, and a neglected system can mean more work. If you’re unsure, ring 0345 646 2711 or use the quote form for straight advice and a fixed quote.

Helping us quote

There’s no need for technical detail. It helps if you can send:

  • A few general shots of the system
  • The paperwork from the last visit, if you have it
  • The postcode and the type of business
  • Anything you’ve noticed, such as smells, noise, drips or poor airflow

For a fixed quote, phone us on 0345 646 2711 or use the quote form and tell us the type of site, your opening hours and roughly what the system looks like. Photos and the last report, if you have one, make the quote quicker. We typically come back within one working day.

BESCA Vent Hygiene EliteMember, cleaning to BESA TR19® Grease
CHAS · SafeContractorISO 9001 and fully insured
Certificate and photo reportWith every clean
24/7 emergency calloutEvenings, nights and weekends
Since 2009South East England and London