Hertfordshire · Grease filter exchange

Redbourn grease filter exchange

Grease filter exchange for Redbourn and the surrounding area: diagnosis first, then a fixed quote, the work and a report with photos. Ask us for a fixed quote.

  • Filter washing that keeps being missed
  • Hand-washed filters that still look greasy
  • A greasy plenum behind the filters

Grease filter exchange across Redbourn

How it works

The visit has three parts: getting the area ready, doing the work and signing it off. Getting ready means protecting surfaces and switching off what needs to be off, and the sign-off is a written report with pictures. Most of the time goes on the work itself, which takes a few minutes per canopy, longer for a large kitchen with several canopies. Around Redbourn, access is usually simpler than in a town centre, though gates and roof access are worth mentioning.

  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. We check the filters are seated and the canopy is ready to use.
  5. We tell you if the plenum or canopy needs a clean.

Preparing for the visit

  • Mention any locked doors, roof access or ceiling voids
  • Let us know when the site is closed or quiet
  • Clear the space around the work

How to get a quote

Quotes are quick. Send a few details and photos, and we normally reply with a fixed quote within one working day. If we need to see the system first, we book a survey around your hours.

Ask for a quote

Related advice

Grease filter exchange for kitchens and businesses in Redbourn

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, baffle filters and restaurants and pubs, and common reasons people get in touch are hand-washed filters that still look greasy and grease filters clogged with grease.

In a smaller place like Redbourn, many kitchens sit in older buildings or later extensions, with the duct running through a roof space or up an outside wall. Long horizontal runs like that hold grease and need access panels to reach.

We’ve been trading since 2009, and we’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we carry full insurance.

The Duct Doctor team standing beside their branded white and blue vans
Where
Redbourn (AL3)
Region
Hertfordshire
Records
Report and pictures after the visit
Quote
Fixed quote, normally within a working day
Working hours
When your site is closed, plus a 24/7 line
Phone
0345 646 2711
Last updated
30 October 2026

For landlords and multi-site operators

For anyone managing more than one site, we can schedule visits across all of them on one quote. Every building has its own written report, so each one has its own record.

Under the Regulatory Reform (Fire Safety) Order 2005, the responsible person must assess and reduce fire risk, which may be the employer, owner, landlord, FM or managing agent. With shared responsibility, good records help everyone.

What a clean will not put right

It’s worth knowing the limits before booking:

  • Extraction problems caused by the fan rather than the filters
  • Grease behind the filters that a swap can’t remove
  • Grease already built up in the ductwork, which needs a full TR19 clean

Not sure which it is? You can call us on 0345 646 2711 or drop us a line and we’ll tell you honestly.

What we work on in Redbourn

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

Questions from Redbourn

Who carries out food hygiene inspections in Redbourn?

Food hygiene inspections in Redbourn are carried out by St Albans City council. An officer may look up into the canopy, so clean filters on the day and a recent certificate on file both help.

Do you work overnight in Redbourn?

Yes. We work evenings, overnight and at weekends. It means the site in Redbourn keeps running as normal. Just ring 0345 646 2711, or send details by email with your opening times and we will plan around them.

What do you do to protect the area?

Protection goes down first: sheeting over floors, worktops and anything close to the work. The area is left tidy, with our waste taken away.

Do you work with multi-site operators?

Yes. Send the list of sites and the work at each and you will get one fixed quote.

How often should grease filters be changed?

That depends on the cooking. Heavy cooking means more frequent changes than lighter ones. We set a schedule that suits your kitchen.

Will you tell us when the next visit is due?

Yes. Every report includes a recommended date for the next visit, based on what we found and how the system is used.

What happens to the waste?

Waste is contained during the work and removed when we leave, from grease and debris to used cleaning water. We don’t leave it behind.

What if some of our filters are damaged?

We check every filter at each visit. Any that are bent or damaged are flagged since a poor fit lets grease past.

What affects the cost of grease filter exchange

We do not publish a price list, because sites vary so much. The quote depends on:

  • When the work can happen, such as evenings, overnight or weekends
  • Any permits to work or inductions
  • The number of sites or systems
  • One-off work versus a regular cycle

Working hours, access and the scale of the site can all change the price. Each of those is built into the quote, and the price is fixed before any work starts.

Helping us quote

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
  • Problems your staff have spotted
  • Where the site is and what kind of site it is
  • The paperwork from the last visit, if you have it

Need a price for grease filter exchange? Please call 0345 646 2711, or email photos and tell us about the site. We’ll explain what we’d do and send a fixed quote before you commit to anything.

How the job changes from site to site

The plenum

With good filters, less grease ends up in the plenum, but it’s still cleaned during a full TR19 clean.

Canopy filter housings

The trough or channel under the filters fills with grease. We point it out if it needs cleaning.

Kitchen extracts in Redbourn

There are about 8 restaurants, cafés and canteens within roughly a mile and a half of the centre of Redbourn, according to the Food Standards Agency’s register. Clogged filters slow the airflow, and busy kitchens like these clog them fast. In Redbourn, food businesses are inspected by environmental health officers from St Albans City council. They look at how clean the premises and equipment are, and the kitchen extract is part of that. A TR19® certificate and photo report after each clean gives you a record to show an inspector. Hertfordshire Fire and Rescue Service covers Redbourn. The Fire Safety Order puts the duty on whoever runs a kitchen to control its fire risk, and a greasy duct is fuel.

Healthcare kitchens can’t easily close, so their extracts are cleaned overnight or between meal services; the nearest hospital to Redbourn is St Albans City Hospital, about 3.6 miles south-east. For schools such as Redbourn Primary School, kitchen extract cleaning is normally booked for the holidays, when the canteen is closed.

Redbourn is about 2 miles south-west of Harpenden, in Hertfordshire. Redbourn gets the same approach as every site we work on: a survey first, a fixed quote, work timed around your hours and a report with pictures. Our Hertfordshire coverage runs to 381 places, and Redbourn is one of them. You can also see our page for Milton Keynes, roughly 23 miles from Redbourn.

All of AL3 is covered for grease filter exchange, from busy streets to back roads. Whether your site is on High Street, The Square and Lords Meadow or a nearby road, our technicians can take on the work. We also cover the places around Redbourn: Holtsmere End (2 miles south-west), Highfield (3 miles south-west), Westwick Row (4 miles south), Leverstock Green (4 miles south) and Adeyfield (4 miles south-west). Further out, we also cover Watford (9 miles south), Hemel Hempstead (4 miles south-west), Stevenage (12 miles north-east), St Albans (4 miles south-east), Welwyn Garden City (9 miles east) and Hitchin (12 miles north-east).

What’s near Redbourn

Typical jobs here are in premises near The Bell And Shears Public House, Roundwood Park School and Rothamsted Park. The closest station to Redbourn is Harpenden station, about 2.3 miles north-east of the centre. Nearby you’ll also find Redbourn Museum (less than half a mile south-east) and St Albans City Hospital (3.6 miles south-east). Not far away are Grebe House Wildlife Garden and Verulamium Lake.

Map of Redbourn © OpenStreetMap contributors

Why it’s worth doing now in Redbourn

Clogged filters choke the extract. The kitchen gets hotter and smokier while the fan strains. A regular exchange keeps the airflow where it should be. You choose the date of a planned visit, and a breakdown never asks.

Several systems or sites on one quote often makes better use of the time. Tell us about everything you’d like looked at and we’ll price it together.

Why choose Duct Doctor in Redbourn

  • Fixed quotes from a survey or pictures
  • We are fully insured
  • Trading since 2009
  • One contact for all your sites in London and the South East

Take a look at our cost guide and how to check a contractor.

Do you need grease filter exchange in Redbourn?

Repeated removal and washing takes its toll on filters. A bent filter doesn’t seat properly and grease passes round them.

Any of these means the system needs a check-up:

  • Weak extraction at the canopy
  • Drips falling from the filters onto equipment
  • Missing filters in the filter bank
  • Filters that come out of the sink still dirty

If you run catering at a historic house or estate in the area (Childwickbury Manor is about 2.6 miles south-east), event kitchens in older buildings often have awkward duct runs that need planning.

What your quote should include

  • What paperwork you get at the end
  • When the next visit should be, and why
  • Whether the price is fixed
  • How areas they can’t reach will be recorded

Our hiring checklist

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