Hertfordshire · Grease filter exchange

Grease Filter Exchange in Amwell

One call covers a scheduled grease filter exchange, swapping dirty canopy filters for clean ones in Amwell, from survey to sign-off. CHAS and SafeContractor accredited, ISO 9001 and fully insured.

  • A canopy that drips grease
  • Blocked baffle filters
  • Bent or damaged filters that don’t sit properly

Grease filter exchange near Amwell

What we’re called out for in Amwell

Missing filters are more common than you’d think. A missing filter leaves an open route into the system and on into the ductwork.

Common reasons sites call us are:

  • Smoke and heat lingering under the hood
  • Blocked baffle filters
  • Drips falling from the filters onto equipment
  • Damaged filters letting grease past

Healthcare kitchens can’t easily close, so their extracts are cleaned overnight or between meal services; the nearest hospital to Amwell is St Albans City Hospital, about 3.4 miles south-west.

Comparing quotes

  • Whether the quote shows VAT
  • What insurance they carry
  • Whether the quote is based on a survey or pictures
  • Their accreditations, such as BESCA Vent Hygiene Elite, CHAS or SafeContractor

How to choose an extract cleaning contractor

Grease filter exchange for kitchens and businesses in Amwell

Washing filters in the kitchen sink is messy and easily missed on a busy week. An exchange service means clean filters arrive and greasy ones leave, so the canopy is never left without filters. The work covers island canopies, school and hospital kitchens and baffle filters, and the jobs we see most are smoke and heat lingering under the hood and blocked baffle filters.

In a small place like Amwell, kitchens are often in older or extended buildings, with long single-storey duct runs, and those horizontal sections are where grease settles. Access, parking and timings are agreed before the day.

It’s worth checking any contractor’s accreditations. Ours are BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease, plus CHAS, SafeContractor and ISO 9001, with full insurance on top.

The Duct Doctor team standing beside their branded white and blue vans
Where
Amwell (AL4)
Wider area
Hertfordshire
Paperwork
Report and pictures after the visit
Quote
A fixed price before we start
Working hours
Out of hours as standard, 24/7 emergency line
Telephone
0345 646 2711
Page updated
30 October 2026

Multi-site and managed buildings

Running several sites is easier with one contractor. We work across London and the South East, so a run of sites can go into one programme and kept on a regular cycle.

For anyone managing more than one site, we can plan visits across the whole estate and price them together. Every building has its own written report, so each one has its own record.

Honest limits

An honest diagnosis matters more to us than a booking, so here’s what this work can’t put right:

  • A canopy that does not capture the vapour properly
  • Greasy ducts and risers that a filter change won’t reach
  • A heavily greased plenum or canopy, which needs cleaning to TR19

If you are not sure, just give us a ring on 0345 646 2711, or email photos and we’ll give you a straight answer.

Parts of the system we cover

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

In-house cleaning or a specialist?

Away from the kitchen, the in-house job is mainly checking: clear grilles, a log of filter changes and reporting anything odd. The inside of ducts and units needs a specialist.

Your own staff can handle the daily basics: wiping canopies, washing grease filters and recording it in a log. Inside the ducts, risers and fan is specialist work, which is where we come in.

Why deal with it now?

Clogged filters choke the extract. The kitchen gets hotter and smokier, and the fan works harder to pull air through. A regular exchange keeps the airflow where it should be. Rural sites can’t always move to another kitchen or room when something fails.

One small site or a whole estate, the quote is built the same way: what needs doing, how we get to it and when. The price is fixed before any work starts.

Why Amwell businesses choose us

  • Evenings, overnight and weekends, plus 24/7 emergency callout
  • Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
  • CHAS and SafeContractor accredited, with ISO 9001
  • Ventilation hygiene specialists since 2009

Take a look at what affects the cost and our accreditations.

The process

Your trading hours come first. We book the visit for a time the area is closed, whether that’s an evening, overnight or a weekend. Once we’re in, the area is sheeted and anything that has to be off is turned off and cooled, and the job takes less than an hour in most kitchens. We agree a date with you, plan the drive to Amwell and turn up when the site is quiet.

  1. We start by noting how many filters you have and what type they are.
  2. A change schedule is agreed to match the kitchen’s cooking hours.
  3. Each visit starts with the used filters being removed.
  4. Clean, dry filters are fitted in their place, with no gaps left between them.
  5. We flag any damaged filters or anything wrong with the canopy.

Preparing for the visit

  • Make sure equipment near the work can be switched off and left to cool
  • Let us know about parking and loading
  • Name a contact who can let us in at the agreed time

Getting a quote

Getting a quote doesn’t take long. Call or email with a few details and you will typically have a fixed price within one working day. Where a survey is needed, we arrange a time that suits the site.

Ask for a quote

Related advice

Kitchen extracts in Amwell

The FSA’s food hygiene register includes about 3 bars, pubs and nightclubs within 1.5 miles or so of the middle of Amwell. Wherever they cook, the canopy, duct and fan collect grease just as a restaurant’s do. Kitchens in Amwell get their food hygiene inspections from St Albans City council. Extraction counts as kitchen equipment, so its condition can come up on the day. A dated certificate in the maintenance file answers the question before it’s asked. Fire safety in Amwell falls to 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.

A hall kitchen that only cooks for events, whether near St Helen's Church or elsewhere in Amwell, still needs its extract cleaned, just less often. School kitchens, at schools like St Helen's Church of England Primary School for example, are normally cleaned in the holidays so no lunches are lost.

Amwell is about 2 miles south-east of Harpenden, in Hertfordshire. Whatever kind of site you run in Amwell, we can take on grease filter exchange. Visits can be booked for evenings, overnight or weekends so trading isn’t interrupted. Amwell is one of 381 places in Hertfordshire where we work for commercial clients. We also work in London, around 23 miles away.

Grease filter exchange in AL4 follows the same survey, fixed quote and written report as everywhere else we cover. If your site is just outside Amwell, we cover The Folly (1 mile north), Lea Valley (1 mile north-west), Batford (2 miles north-west), Mackerye End (2 miles north) and Harpenden (2 miles north-west). We also work in nearby towns such as Watford (11 miles south), Hemel Hempstead (8 miles south-west), Stevenage (9 miles north-east), St Albans (4 miles south), Welwyn Garden City (5 miles east) and Hitchin (10 miles north).

Local landmarks in Amwell

Around Amwell, our work takes us to kitchens and buildings near Elephant And Castle Public House and Sir John Lawes School and the streets around them. The closest station to Amwell is Harpenden station, about 2 miles west of the centre. A little further out are Harpenden Museum (2.2 miles west) and The Maltings (4 miles south). For a walk, there’s Wheathampstead Local Nature Reserve and Verulamium Lake.

Map of Amwell © OpenStreetMap contributors

How the job changes from site to site

Baffle filters

When baffles fill with grease, less air gets through. A clean exchange set brings the airflow back.

Mesh filters

Grease lodges deep in the layers of a mesh filter, so a quick rinse rarely gets it clean.

Your questions about grease filter exchange in Amwell

Will you come out to Amwell?

Yes, Amwell is part of our area, however small the site. A survey first, from photos or a visit, means we arrive with the right kit.

Can you clean school kitchen extracts in Amwell 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 Amwell. Booking early in the term gives the best choice of holiday dates.

How much does a filter exchange service cost?

Pricing depends on the kitchen, so we need to know the filters and interval first. We give you a fixed quote before the first visit.

Do you have insurance?

Yes, we’re fully insured. CHAS and SafeContractor accreditation sit alongside it, for sites that check contractor safety.

Can you clean our existing filters instead?

We offer filter cleaning as well as exchange. We’ll explain the options when you get in touch.

Will we have to stop cooking for a filter change?

Most changes take less than an hour in most kitchens, so the impact is small. We plan visits outside your busiest times wherever we can.

What should go in our maintenance log?

Everything that shows the system is looked after: reports, certificates, photos and your own cleaning or check logs. One maintenance log per site keeps it simple.

What do you do with what you remove?

Anything we remove is contained as we work and taken away with us, including grease, debris and dirty water. None of it is left on site.

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