Hertfordshire · Grease filter exchange

Grease Filter Exchange in Clothall

Grease filter exchange across Clothall and nearby, timed so the site keeps working and signed off in writing with photos.

  • Grease dripping from the canopy
  • Grease filters clogged with grease
  • Smoke and heat lingering under the hood

Book grease filter exchange in Clothall

Grease filter exchange in Clothall, done properly

Good filters only work when they fit properly. Gaps in the filter bank are a direct route into the plenum, so we check every one at each visit. We point out any that need replacing. If you have grease dripping from the canopy and poor airflow through the filters, we can help.

In a small place like Clothall, kitchens are often in older or extended buildings, with long single-storey duct runs, where grease settles in the flat sections. We agree access and timings in advance.

Good records are part of the job. You get a written report with pictures after each visit, covering the work done, any areas we couldn’t access and a recommended next date. Keep it with your fire safety records so it’s ready for an insurer, fire officer or EHO.

Location
Clothall (SG7)
Wider area
Hertfordshire
Paperwork
Written report with pictures
Price
Fixed quote, typically within a working day
Hours
Evenings, overnight and weekends; 24/7 emergencies
Telephone
0345 646 2711
Page updated
30 October 2026
Five Duct Doctor technicians in navy uniforms with the company vans

Aftercare tips

So the system stays in good health:

  • Keep the extract on whenever the range is in use
  • Make sure no filter is left out
  • Keep filter exchange and TR19 cleaning on the same plan
  • Let us know if your cooking hours increase

If the plenum behind the filters looks greasy, we say so. It can be a sign that a full TR19® clean is due and we can book that in.

Clean filters plus regular full cleans keep the system in good health. A maintenance plan that covers both means neither slips.

Your questions about grease filter exchange in Clothall

Can you clean school kitchen extracts in Clothall during the holidays?

Yes, and it’s the easiest time to do it. There are about 2 schools, colleges and universities on the FSA’s food hygiene register within about 1.5 miles of Clothall. You can ring 0345 646 2711, or send details by email with the dates the site is empty.

Which fire service covers Clothall?

That is Hertfordshire Fire and Rescue Service. It’s worth keeping your fire risk assessment, TR19® certificates and photo reports together, ready to show.

Are you accredited?

CHAS, SafeContractor, ISO 9001 and BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease. We have been trading since 2009 and we’re fully insured.

What should go in our maintenance log?

Every certificate and report from each visit, filed in the maintenance log with your in-house cleaning records. BESA advises that certificates record the date, location and technician.

Which sectors do you work in?

We work for restaurants, pubs, hotels, schools, colleges, hospitals, care homes, offices and shops, plus food production and leisure sites.

Do you clean filters as well as exchanging them?

We offer filter cleaning as well as exchange. We’ll talk you through which suits your kitchen when we quote.

Can you come out in an emergency?

Yes, 24/7. Office hours are Monday to Friday, 8am to 6pm, with the emergency line covering every other hour.

Can we book visits on a schedule?

Yes. We run scheduled maintenance contracts, with visits at the interval your system needs. Each report recommends when the next visit should be.

What staff can safely do

A few tasks are always specialist work: opening up ductwork, cleaning fans, drop testing fire dampers and measuring grease call for the right kit, training and safe access. Leave those to us.

Your own staff can handle the daily basics: wiping canopies, washing grease filters and recording it in a log. What they can’t safely do is clean inside the ductwork, the fan or the risers, which is where we come in.

Honest limits

An honest diagnosis matters more to us than a booking, so here’s what grease filter exchange will not do:

  • A canopy that doesn’t capture the vapour properly
  • Odours from the discharge that filters will not stop
  • Grease already built up in the ductwork, which needs a full TR19 clean

If in doubt, ring 0345 646 2711 or use the quote form and we will say what we think before booking.

Where we work

  • Baffle filters
  • School and hospital kitchens
  • Restaurants and pubs
  • Wall canopies
  • Island canopies
  • Mesh filters

Leave it or put it right?

For any kitchen in Clothall, filters can’t stand in for a full TR19 clean. But clean filters do help the system between cleans, and that shows when the next clean comes round. In a place like Clothall, ductwork and fans are easy to forget until something goes wrong.

Working hours, access and the scale of the site all affect the cost. We take each of them into account and give you a fixed price before work begins.

Why book with us

  • CHAS, SafeContractor and ISO 9001
  • We diagnose before we treat
  • Evenings, overnight and weekends, plus 24/7 emergency callout
  • Fixed quotes, normally within one working day

Read what affects the cost and how to check a contractor.

Different parts, different methods

School, care home and staff kitchens

A longer exchange interval may suit lighter cooking. We agree the schedule to match.

Busy restaurant and pub kitchens

Kitchens that fry and grill all day load their filters fast. They often need the shortest exchange interval.

How the visit works

The first job on site is protection: sheeting goes over floors and surfaces close to the work. Then we make the system safe and start. The work on site takes a few minutes per canopy, longer for a large kitchen with several canopies, and we clear up before we go. Visits to a village like Clothall are booked in advance, at a time that suits whoever runs the site.

  1. First, we record the size, type and number of filters in each canopy.
  2. We agree a schedule that suits how much the kitchen cooks.
  3. On each visit, the dirty filters come out of the canopy.
  4. Clean filters go straight back in, seated properly with no gaps.
  5. Anything we notice, such as bent filters or a dirty plenum, is pointed out.

Getting ready for the visit

  • Let us know when the site is closed or quiet
  • Clear loose items from the work area
  • Tell us where we can park and unload

Getting a quote

Need a price for grease filter exchange? Please call us on 0345 646 2711, or email photos with a few details about the site. We’ll talk you through the work and give you a fixed quote before you commit to anything.

Get a price

Related advice

What grease filter exchange looks like in Clothall

Food Standards Agency data counts about 3 restaurants, cafés and canteens within about 1.5 miles of central Clothall. Swapping filters on a schedule keeps kitchens like these drawing air properly. Kitchens in Clothall get their food hygiene inspections from North Hertfordshire council. The cleanliness of the kitchen and its equipment, extraction included, is part of what they check. Before-and-after photos from each clean are a simple way to show the extract is in hand. Clothall sits within the area of Hertfordshire Fire and Rescue Service. The Fire Safety Order puts the duty on whoever runs a kitchen to control its fire risk, and a greasy duct is fuel.

Church and community hall kitchens, near Church of St Mary or anywhere around Clothall, are easy to forget, but their extracts collect grease like any other. If you look after a school kitchen, at a school such as Weston Primary School or anywhere near Clothall, the holidays are the usual time for a TR19® clean.

Clothall is about 3 miles east of Letchworth, in Hertfordshire. We carry out grease filter exchange for commercial premises of every kind in Clothall and the rest of Hertfordshire. Clothall is one of 381 towns, villages and districts in Hertfordshire where we work for grease filter exchange. There’s also a page for Milton Keynes, roughly 27 miles from Clothall.

Here we cover the SG7 postcode area for grease filter exchange. Nearby, we also carry out grease filter exchange in Weston (1 mile south-west), Wallington (2 miles north-east), Baldock (2 miles north-west), St Nicholas (3 miles south) and Rooks Nest (4 miles south-west). Larger places within reach include Stevenage (4 miles south), Bishop's Stortford (15 miles south-east), Welwyn Garden City (12 miles south), Harpenden (14 miles south-west), Hitchin (5 miles west) and Hatfield (15 miles south).

Around Clothall

Around Clothall, our work takes us to kitchens and buildings near The Knights Templar School. The nearest railway station is Baldock station, roughly 2.2 miles north-west. Other landmarks nearby include First Garden City Heritage Museum (3.1 miles west) and Clothall Castle (within half a mile south-east). Green spaces nearby include Pryor's Wood.

Map of Clothall © OpenStreetMap contributors

Do you need grease filter exchange in Clothall?

However long the kitchen cooks each day, the filters see every minute of it. Heavy daily use means fast build-up so changes need to come round sooner.

Clients usually contact us when they notice one of these:

  • Filters that come out of the sink still dirty
  • A canopy that drips grease
  • Weak extraction at the canopy
  • Staff short of time to wash filters

A hospital like Lister Hospital, about 4.1 miles south-west, is the kind of site where a kitchen may cook for patients, staff and visitors all day.

What your quote should include

  • Whether the price is fixed
  • What hours they’ll be on site
  • Whether the quote is based on a survey or pictures
  • How VAT is shown on the quote

How to choose an extract cleaning contractor

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