Hertfordshire · Extract fan cleaning

Lemsford extract fan cleaning

Professional extract fan cleaning in and around Lemsford, booked around your opening hours and signed off in writing with pictures.

  • Fat spreading onto the roof or wall by the fan
  • A noisy fan that has got louder over time
  • A heavily greased fan housing

Extract fan cleaning in Lemsford

Fixed quotes for extract fan cleaning in Lemsford

A fixed price needs a few facts first. We look at:

  • Where the site is and how we reach it
  • Whether several sites go on one quote
  • Any permits to work or inductions
  • Whether it’s a one-off visit or part of a schedule

No two sites are the same, so each one gets its own fixed quote. The size of the job, how we reach it, its condition and the working hours all make a difference.

Asking for a quote

Photos and a few facts are often enough to price the work. Useful things to send:

  • When the site is open and when it’s quiet
  • The site address and the type of premises
  • Close-ups of filters, grilles, hatches or access panels
  • Anything you’ve noticed, such as smells, noise, drips or poor airflow

Photos are enough for some jobs, while others need a look on site. Big or complicated sites, and systems that are hard to see in pictures, get a survey first. Either way, the quote is fixed before any work is booked.

Extract fan cleaning in Lemsford, done properly

The fan is cleaned as part of every full TR19® Grease clean, but some fans need cleaning between full cleans, especially when it has started to vibrate or sound rough. Where only the fan is cleaned, the report says so. If you have a fan motor running hot under a coat of grease and fat spreading onto the roof or wall by the fan, we can help, from roof-mounted fans, fan housings and in-line fans onwards.

Rural kitchens often have long, low duct runs through a roof space or along an outside wall, where grease settles in the flat sections. We agree access and timings in advance.

Every visit ends with a written report and photos, so you have a record of what was done and when. Kitchen extract cleaning to TR19® Grease is certificated through the BESCA Vent Hygiene Elite portal.

Five Duct Doctor technicians in navy uniforms with the company vans
Location
Lemsford (AL8)
Region
Hertfordshire
Records
Certificate and photo report
Price
Fixed quote, typically within a working day
Working hours
After hours by arrangement; emergencies any time
Telephone
0345 646 2711
Last updated
30 October 2026

Honest limits

A few issues sit outside what this work can do:

  • A cracked or broken impeller (it needs replacing)
  • A fan that is too small for the system (a design question)
  • A fan that won’t start

Not sure which it is? You can call 0345 646 2711 or email us and we’ll tell you honestly before you book.

What the work covers

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

Aftercare tips

To keep the system working properly between visits:

  • Do not store items in front of the fan’s access point
  • Book the fan into every full TR19 clean
  • Report rattles or humming early
  • Run the extract throughout cooking

You get before and after pictures of the impeller and housing. It notes what was done and anything that couldn’t be reached, along with the recommended next clean date.

Do not run the kitchen with the extract off. Air that keeps moving carries vapour out rather than letting it settle, so keeping it running helps keep it clean.

For landlords and multi-site operators

Whether it’s one building or many, you get the same standard: the system surveyed, the price fixed, the visit fitted around trading and everything written up afterwards.

Where a tenant occupies the premises but the landlord owns the building, it’s worth checking the lease for who maintains the systems. We are happy to deal with either side, and the report can go to both.

Lemsford questions

Who enforces fire safety at workplaces in Lemsford?

Fire safety enforcement in Lemsford is handled by Hertfordshire Fire and Rescue Service. Records of extract cleaning are a sensible thing to have ready if a fire safety officer carries out an audit.

Can you get to a site in Lemsford?

Yes, smaller places are covered as well as towns. Photos of the system and directions to the site help us plan the visit.

Can you clean the fan on its own?

Yes, we do. The report will make clear that only the fan was cleaned, so your TR19 records stay accurate. The whole system still needs cleaning at the intervals in BESA guidance.

Why is my extract fan noisy?

Often it’s grease on the impeller. Grease collects unevenly and unbalances the impeller, causing vibration and noise. Cleaning may sort it, but worn bearings or a failing motor need a repair.

Who is the responsible person?

In the words of the Fire Safety Order 2005, it’s the responsible person. That is generally the employer or the person in control of the premises, and where several people have control, each can have duties. Your lease and fire risk assessment should make it clear.

Do we lose a day’s trading?

Not usually. We need the work area to ourselves while we are on site, so we book a time when it would be closed anyway.

Can we book visits on a schedule?

Yes. Send details of the systems and how they’re used, and we’ll suggest a schedule and quote for it.

How much does extract fan cleaning cost in Lemsford?

Every site is different, so each gets its own fixed quote. For a quote, ring 0345 646 2711, or send details by email and tell us about the site and its opening hours.

What staff can safely do

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.

Good housekeeping makes our visits easier, not unnecessary. Clean filters and tidy surfaces slow the build-up, but the parts you cannot see still need a specialist at the right interval.

Extract fan cleaning around Lemsford

The FSA’s food hygiene register includes about 6 pubs and bars across Lemsford and its immediate surroundings (about a mile and a half). Any of them serving cooked food has an extract to keep clean, from canopy to discharge. Lemsford is covered by Hertfordshire Fire and Rescue Service. In most workplaces, including commercial kitchens, it’s the fire and rescue authority that enforces the Fire Safety Order. Food hygiene inspections in Lemsford are the job of Welwyn Hatfield council’s environmental health team. They look at how clean the premises and equipment are, and the kitchen extract is part of that. A dated certificate in the maintenance file answers the question before it’s asked.

Historic houses near Lemsford, such as Digswell House about 1.9 miles north-east, are a reminder that older buildings with event kitchens can have long, awkward duct routes. Healthcare kitchens, like those at hospitals such as Queen Elizabeth II Hospital (about 2.1 miles south-east), often cook for long hours, which puts them in BESA’s heavier-use bands. Term dates shape school work: for a school like Applecroft School, an extract clean fits neatly into a half-term or summer break.

Lemsford is about 2 miles west of Welwyn Garden City, in Hertfordshire. Anywhere in AL8, we can take on extract fan cleaning. Lemsford is one of 381 places in Hertfordshire we cover for commercial clients. There’s also a page for London, roughly 21 miles from Lemsford.

Here we cover the AL8 postcode area for extract fan cleaning. Local streets include Mill Close, Lemsford Village and Great North Road, and we cover them all for extract fan cleaning. Other places close to Lemsford include Stanborough (1 mile south), Coleman Green (2 miles west), Cooper's Green (2 miles south-west), Hatfield (2 miles south) and Smallford (3 miles south-west). We also work in nearby towns such as Watford (12 miles south-west), Hemel Hempstead (10 miles west), Stevenage (8 miles north), St Albans (5 miles south-west), Harpenden (5 miles west) and Hitchin (11 miles north).

Near you in Lemsford

Locally, jobs take us to businesses close to Stanborough Park, Stanborough School and The Sun Inn and the streets around them. The nearest railway station is Welwyn Garden City station, about 1.2 miles east. Other landmarks nearby include Queen Elizabeth II Hospital (2.1 miles south-east) and The Bunker at Hatfield Police Station (2.1 miles south). For a walk, there’s Lemsford Springs.

Map of Lemsford © OpenStreetMap contributors

Part by part

Inline duct fans

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

Impellers and blades

The blades of the impeller do the work, and it collects grease unevenly. An uneven coating throws it off balance, so it’s cleaned carefully blade by blade.

What happens on the day

The first job on site is protection: floors, worktops and anything near the work are covered. After that, the system is made safe and the work begins. It takes a few hours where there are several fans or heavy deposits, and the area is cleaned down before we leave. If the van will struggle with a lane or gateway near Lemsford, let us know and we’ll plan around it.

  1. Diagnosis first: we look for grease, noise and vibration.
  2. With the fan isolated, the housing is opened.
  3. The impeller is cleaned blade by blade so it runs balanced.
  4. Housing, outlet and the area around the motor are cleaned.
  5. The fan goes back into service with a report on its condition.

How to prepare

  • Allow time for equipment near the work to be turned off and cool down
  • Let us know about parking and loading
  • Dig out any earlier paperwork for the system

How to get a quote

If you need extract fan cleaning in Lemsford, phone us on 0345 646 2711, or send details by email. Let us know the site type and the opening hours, and send pictures or your last report if you can. We usually send a fixed quote within one working day.

Ask for a quote

Related advice

BESCA Vent Hygiene EliteMember, cleaning to BESA TR19® Grease
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