Hertfordshire · Grease filter exchange

Grease filter exchange in Frogmore, Hertfordshire

Grease filter exchange across Frogmore and nearby, booked around your opening hours and signed off in writing with photos.

  • A greasy plenum behind the filters
  • Filters that leave gaps in the canopy
  • Drips falling from the filters onto equipment

Grease filter exchange for sites in Frogmore

Grease filter exchange around Frogmore

According to Food Standards Agency records, there are about 8 pubs and bars in Frogmore and the streets around it, up to about 1.5 miles out. A pub or hotel kitchen that cooks every day builds up grease in its extract like any other. The fire and rescue service for Frogmore is 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. Kitchens in Frogmore get their food hygiene inspections from St Albans City council. An officer looking round a kitchen will see the canopy, and grease there is hard to miss. Keeping each certificate and photo report on file helps show the extract is looked after.

Term dates shape school work: for a school like Park Street Church of England Voluntary Aided Primary School, an extract clean fits neatly into a half-term or summer break. Where a hall near Church of the Holy Trinity, or anywhere in Frogmore, hosts lunch clubs or events, its extract gathers grease just as a café’s does.

Frogmore is about 2 miles south of St Albans, in Hertfordshire. Whatever kind of site you run in Frogmore, grease filter exchange is something we can help with. Visits can be booked for evenings, overnight or weekends so trading isn’t interrupted. Our Hertfordshire coverage runs to 381 places, Frogmore among them. London is in our area too, about 18 miles from Frogmore.

Work in AL2 is surveyed, quoted and booked the same way as anywhere else. You will find streets such as Centaurus Square, Frogmore and Avian Avenue, all of which we cover for grease filter exchange. Neighbouring places we cover for grease filter exchange include Park Street (1 mile north-west), How Wood (1 mile west), Colney Street (1 mile south-east), Chiswell Green (1 mile north-west) and Sopwell (1 mile north). Larger places within reach include Watford (5 miles south-west), Hemel Hempstead (6 miles north-west), Stevenage (15 miles north-east), Welwyn Garden City (8 miles north-east), Harpenden (7 miles north) and Hoddesdon (14 miles east).

Landmarks near Frogmore

We work in commercial kitchens and buildings around The Old Red Lion pub and Marlborough Science Academy. Frogmore has its own railway station: How Wood station. Nearby you will also find Hypocaust Museum (2.3 miles north-west) and Hilfield Castle (4.5 miles south). Open spaces near Frogmore include Verulamium Lake and Broad Colney Lakes.

Map of Frogmore © OpenStreetMap contributors

Grease filter exchange in Frogmore

A clean set of filters is a simple, regular dose of prevention. It keeps airflow up and grease down between full cleans, and it saves your staff a greasy job. Full TR19 cleaning still comes at the right interval, with a certificate. The work covers island canopies, mesh filters and baffle filters, and common reasons people get in touch are filters left unwashed on busy weeks and filters so greasy the air can barely pass.

Work in a small place like Frogmore starts with a call to agree access and timings, and the clean itself is the same full TR19® job as in any town: canopy to discharge, then a TR19® certificate and a photo report.

For insurers and inspectors, the record counts. So every job comes with a written report and pictures, plus a TR19® certificate through the BESCA VHE portal where the work is a TR19® Grease clean.

Five Duct Doctor technicians in navy uniforms with the company vans
Where
Frogmore (AL2)
Region
Hertfordshire
Paperwork
Photo report after every visit
Price
A fixed price before any work starts
Hours
When your site is closed, plus a 24/7 line
Telephone
0345 646 2711
Reviewed
30 October 2026

Frogmore: your questions answered

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

Yes. Half-terms and the summer break are the natural time for school work. Around Frogmore, the Food Standards Agency lists about 5 schools and colleges with registered kitchens within a mile and a half or so. Booking early in the term gives the best choice of holiday dates.

Can you get to a site in Frogmore?

Yes. Frogmore is within the area we cover across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.

Do you offer emergency callouts?

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

How much notice do you need?

The more notice, the better, especially for out-of-hours work. Quotes usually come back within one working day, and emergencies are covered by our 24/7 line.

Do you clean filters as well as exchanging them?

We can. Cleaning your existing filters is an option while others want an exchange. We make sure the canopy is ready for service either way.

How do you keep the site clean during the work?

We start with protection: sheeting over floors, worktops and anything close to the work. We tidy up and take our waste away before we leave.

What happens to the dirty filters?

Yes. The dirty filters are taken away for cleaning and the clean set stays in the canopy.

Which grease filters does the service cover?

Both baffle filters and mesh filters are covered. At the start, we note what your canopies use so the clean set always fits.

How it works

Each visit runs to the same pattern: sheeting and protection first, isolate whatever needs isolating, do the work, clear away and leave you the report. The visit itself takes anything from a few minutes to an hour or so, depending on the number of filters. Somewhere as small as Frogmore, the date and timings are agreed with you well before the day.

  1. First, we check the canopies and the filters in them.
  2. We note any filters that are bent, damaged or missing.
  3. We exchange the dirty filters for a clean set.
  4. The filters are checked for fit before we go.
  5. Anything that needs attention, such as a greasy plenum, is pointed out.

Getting ready for the visit

  • Let us know about permits to work or site inductions
  • Plan for cooking equipment or plant to be off before we arrive
  • Mention any locked doors, roof access or ceiling voids

Getting a quote

For a fixed quote, give us a ring on 0345 646 2711 or email us with the site type, your trading hours and a short description of the system. A few photos and your last certificate or report help a lot. We normally come back within one working day.

Get a price

Advice

What happens if it’s left?

Grease dripping from the canopy is a sign the filters can’t hold any more. Drips land on surfaces and equipment below, which an EHO may well notice. Somewhere as small as Frogmore, losing a kitchen or building to a fault is felt by everyone who uses it.

What you pay reflects the actual work. That is why we survey first, from pictures or on site, and the price is agreed before work begins.

What you get with us

  • Fixed quotes from a survey or photos
  • One contact for all your sites in London and the South East
  • CHAS and SafeContractor accredited, with ISO 9001
  • Evenings, overnight and weekends, plus 24/7 emergency callout

Read how cleaning jobs are priced or our accreditations.

When it’s something else

In fairness, some problems need a different fix:

  • Grease already built up in the ductwork, which needs a full TR19 clean
  • A heavily greased plenum or canopy, which needs cleaning to TR19
  • Smell complaints that need odour control equipment

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

Parts of the system we cover

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

What staff can safely do

Logging matters as much as cleaning. A simple log of filter washes, wipe-downs and checks helps show that the system is managed between specialist visits, alongside our reports.

Staff cleaning and specialist work are not the same thing. Wiping filters daily and washing them weekly keeps the visible parts in order, but grease that has passed the filters is out of reach. That part needs specialist access and equipment.

Looking after it afterwards

So the system stays in good health:

  • Report damaged filters so they can be replaced
  • Look out for drips from the canopy
  • Keep the canopy clear for exchange visits
  • Do not let the full clean slip because filters are changed

Between visits, check that every filter is still in place. Gaps let grease into the plenum so tell us if you need a replacement.

Bent or missing filters let grease straight past. Replacing them early protects the plenum and ductwork.

How we price grease filter exchange

Sites vary more than people expect. The main factors:

  • Site rules, permits and inductions
  • Where the site is and how we reach it
  • Whether it’s a one-off visit or part of a schedule
  • How big the system is

Kitchens, offices, schools and hospitals are all priced the same way: how much there is, how we reach it, what state it’s in and when we can work. Call for a fixed quote and we will explain each part.

What we need to know

The more you tell us, the more accurate the quote. When you get in touch, it helps to send:

  • Photos showing the whole system and its surroundings
  • Detail shots of panels, filters and grilles
  • The paperwork from the last visit, if you have it
  • The site address and the type of premises

Getting a quote doesn’t take long. Send a few details and photos, and we usually reply with a fixed quote within one working day. Where a survey is needed, we arrange a time that suits the site.

When to call us in Frogmore

Filters get bent and damaged with handling. Damaged filters don’t sit flush, leaving gaps for grease to slip through.

What we’re most often called out for:

  • Missing filters in the filter bank
  • Filters left unwashed on busy weeks
  • Smoke and heat lingering under the hood
  • Blocked baffle filters

A hospital like Napsbury Hospital, about 1.1 miles east, is the kind of site where a kitchen may cook for patients, staff and visitors all day.

Comparing quotes

  • What insurance they carry
  • What hours they’ll be on site
  • Proof of accreditation you can verify
  • What paperwork you get at the end

Choosing a duct 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