Hertfordshire · Grease filter exchange

Grease filter exchange in Belsize, Hertfordshire

Professional grease filter exchange in and around Belsize, timed so the site keeps working and finished with a written report and photos.

  • Grease collecting in the filter channels
  • A canopy running with filters missing
  • A canopy that drips grease

Grease filter exchange near Belsize

About our grease filter exchange in Belsize

Cleaning filters by hand takes staff time and is easy to put off. With a filter exchange, we bring a clean set and take the dirty one away and the canopy is refilled right away. The work covers baffle filters, mesh filters and island canopies, and people most often call us about missing filters in the filter bank and damaged filters letting grease past.

Work in a small place like Belsize starts with a call to agree access and timings, and the clean covers the whole system, as it would anywhere: canopy, filters, duct, fan and discharge, with a certificate and photo report at the end.

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

Five Duct Doctor technicians in navy uniforms with the company vans
Location
Belsize (WD3, WD4)
Wider area
Hertfordshire
Paperwork
Photo report after each visit
Price
A fixed quote up front
Hours
Overnight and weekend work, 24/7 emergency callout
Telephone
0345 646 2711
Last updated
30 October 2026

Staff cleaning versus specialist work

Day-to-day cleaning is something your team can do: wiping canopies, washing grease filters and recording it in a log. What they cannot safely do is clean inside the ductwork, the fan or the risers, and that’s where we come in.

Good housekeeping makes our visits easier, not unnecessary. Regular in-house cleaning slows the build-up, but the parts you cannot see still need a specialist at the right interval.

What a clean won’t put right

In fairness, some problems need a different fix:

  • Smell complaints that need odour control equipment
  • A canopy that doesn’t capture the vapour properly
  • A noisy or failed extract fan

Not sure which it is? You can phone us on 0345 646 2711, or send details by email and we’ll tell you honestly.

What the work covers

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

The process

We work around your opening hours, not the other way round. Most visits are booked for when the area is out of use, such as evenings, overnight, early mornings or weekends. When the team arrives, the work area is protected and the relevant equipment is switched off to cool, and the job takes a short visit, depending on how many filters the canopies hold. For a village or hamlet like Belsize, tell us about narrow lanes, gates and parking when you book.

  1. We count and measure the filters in every canopy.
  2. We agree a schedule that suits how much the kitchen cooks.
  3. At each visit, the greasy filters are lifted out.
  4. Clean, dry filters are fitted in their place, with no gaps left between them.
  5. Anything we notice, such as bent filters or a dirty plenum, is pointed out.

Preparing for the visit

  • Have your last certificate or report to hand
  • Mention any parking or loading restrictions
  • Move anything stored near the system

Getting a quote

Getting a quote doesn’t take long. Call or email with a few details and you’ll typically have a fixed price within one working day. If we need to see the system first, we book a survey around your hours.

Get a quick quote

Related advice

Your questions about grease filter exchange in Belsize

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

Yes, evening, overnight and weekend work is normal for us. Your customers, staff or residents in Belsize needn’t be disturbed. When you give us a ring on 0345 646 2711, or email photos, mention when the site is quiet.

Can a school canteen extract in Belsize be done out of term time?

Yes. Half-terms and the summer break are the natural time for school work. Around Belsize, the Food Standards Agency lists about 3 schools and colleges with registered kitchens within a mile and a half or so. Tell us your holiday dates and we’ll book the visit for when the site is empty.

Can one contract cover all our sites?

Yes. Our area covers London and the South East, so sites at different addresses can be planned together as one programme. Each site gets its own report and photos.

Are you fully insured?

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

How long does grease filter exchange take?

The work itself takes anything from a few minutes to an hour or so, depending on the number of filters. Bigger or more complicated systems take longer, and the quote will say how long.

Who has the legal duty for fire safety?

The law calls them the responsible person. It’s normally the employer, or whoever controls the building, and in shared buildings more than one person can have duties. Your lease and fire risk assessment should make it clear.

Is there a survey before the work?

Yes, every time. Diagnosis comes before treatment: the survey shows what needs doing and what access we need and the fixed quote is built on it.

Do you provide a certificate or report?

Yes, on every job. It’s a dated, written report with pictures, and TR19® Grease cleans come with a certificate through the BESCA VHE portal. File it with your fire safety records.

Grease, kitchens and Belsize

Look up Belsize on the FSA’s food hygiene register and you will find about 7 cafés, restaurants and staff canteens in and around Belsize, up to about a mile and a half out. Swapping filters on a schedule keeps kitchens like these drawing air properly. Belsize is covered by 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. Food hygiene inspections in Belsize are the job of Three Rivers council’s environmental health team. Extraction counts as kitchen equipment, so its condition can come up on the day. Our report lists what was cleaned and when, which is useful to have ready.

If you run catering at a healthcare site, such as a hospital like Hemel Hempstead Hospital about 4 miles north, the extract may need cleaning more often than a part-time kitchen. School kitchens, at schools like Sarratt Church of England Primary School for example, are typically cleaned in the holidays so no lunches are lost. Chenies Manor House, about 2 miles south-west, is one of the historic houses near Belsize; if you run event catering at a venue like that, cleans can be booked between functions.

Belsize is about 3 miles north of Chorleywood, in Hertfordshire. Wherever you are in the WD3 postcode area, we can take on grease filter exchange. We cover 381 places across Hertfordshire, large and small. London is in our area too, around 22 miles away.

Every address in WD3 and WD4 is covered for grease filter exchange, from the main roads to the quietest streets. Whether your site is on Plough Lane, Bragmans Lane and Poles Hill or a nearby road, our technicians can take on the work. Other places close to Belsize include Flaunden (1 mile west), Chenies (2 miles south-west), Latimer (2 miles south-west), Chorleywood (3 miles south) and Little Chalfont (3 miles south-west). Further out, we also cover Watford (5 miles south-east), Hemel Hempstead (4 miles north-east), St Albans (8 miles north-east), Welwyn Garden City (15 miles north-east), Harpenden (11 miles north-east) and Hatfield (12 miles east).

Near you in Belsize

We work in commercial kitchens and buildings around Two Brewers Inn and Kings Langley School, among other places. For rail, the closest station is Kings Langley station, roughly 2.9 miles east of the centre. Nearby you’ll also find Hemel Hempstead Hospital (4 miles north). Green spaces nearby include Sarratt Bottom nature reserve.

Map of Belsize © OpenStreetMap contributors

What affects the cost of grease filter exchange

You will get a fixed price before we start. It’s based on:

  • The times the site is available
  • Any permits to work or inductions
  • Whether we need access equipment or extra panels
  • How big the system is

Leaving it longer rarely makes the work cheaper. Problems in a system tend to grow, which can make the next visit longer. If you’re unsure, call us on 0345 646 2711 or send us an email for straight advice and a fixed quote.

What to send for a quote

A few details help us quote accurately. With your enquiry, please include:

  • The times we could work without disrupting the site
  • A few general shots of the system
  • Your last certificate, test record or report
  • Any symptoms, from odd noises to smells or leaks

The quickest way to a quote is to send photos: the system from a couple of angles, plus any access panels or hatches. Tell us what kind of site it is and when it’s open, and we can price many jobs without a visit.

Looking after it afterwards

No system stays clean for ever, but care slows the build-up. Our tips:

  • Report damaged filters so they can be replaced
  • Never leave gaps in the filter bank
  • Keep the canopy clear for exchange visits
  • Mention it if the kitchen gets busier

Your next visit is scheduled before we leave. If cooking increases, we can change filters more often to match.

If filters are already dripping, they’re overdue. A clean set right away cuts the grease in the canopy and the plenum may need a clean as well.

Different parts, different methods

Mesh filters

Mesh traps grease between its layers, so a quick rinse rarely gets it clean.

School, care home and staff kitchens

Visits can be planned around holidays and quieter periods so the filters are clean when cooking picks up.

Managing agents and facilities teams in Belsize

If you look after several sites, we can schedule visits across all of them on one quote. Each site gets its own report and photos, so records stay tidy.

Multi-site operators often want one contractor and one number. We work across London and the South East, so a run of sites can go into one programme and kept to a regular schedule.

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