Hertfordshire · Grease filter exchange
St Albans grease filter exchange
Grease filter exchange for St Albans and the surrounding area: a survey, a fixed price, careful work and proper paperwork. Call for a fixed quote.
- Poor airflow through the filters
- Filters that come out of the sink still dirty
- A canopy running with filters missing
Your questions about grease filter exchange in St Albans
Can you come to St Albans after we close?
Yes, nights and weekends are routine for us. That way a site in St Albans doesn’t have to lose a day’s trading. Let us know the hours you are closed and we’ll book within them.
Who would carry out a food hygiene inspection at a kitchen in St Albans?
Kitchens in St Albans are inspected by St Albans City council’s environmental health officers. Ratings are published by the Food Standards Agency, so a clean extract and good records are worth keeping up.
What does TR19 mean?
TR19® is BESA’s specification for ventilation hygiene. TR19® Grease, a standalone specification since 2019, covers grease in kitchen extract systems, while TR19® Air covers other supply and extract ductwork.
What should go in our maintenance log?
Anything that proves the system is maintained: reports, certificates, photos and your own cleaning or check logs. A single log for each site works best.
Can we book visits on a schedule?
Yes. Plans on a 3, 6 or 12-monthly cycle are available, to suit the system and how it’s used.
How far ahead should we book?
That depends on the slot you want and the size of the job. Mention your preferred dates with your enquiry, and for anything urgent, ring our 24/7 emergency line.
What types of premises do you cover?
We work for restaurants, pubs, hotels, schools, colleges, hospitals, care homes, offices and shops, as well as food production and leisure sites.
Can you give a price for filter changes?
The cost depends on your filters and the schedule. Just phone us on 0345 646 2711, or send details by email for a fixed quote once we know your canopies.
Grease filter exchange in St Albans, done properly
The filters in the canopy are the first thing cooking vapour meets. They catch grease before it reaches the plenum and ductwork and they do it best when they’re clean. Our grease filter exchange service swaps dirty filters for clean ones on a schedule. Common call-outs are for hand-washed filters that still look greasy and blocked baffle filters, across wall canopies, school and hospital kitchens and mesh filters.
In a place the size of St Albans, the kitchens with extract systems range from takeaways and restaurants to hotel, school and workplace kitchens. Each cooks for a different number of hours a day, so each needs cleaning at its own interval.
Think of the report as the system’s health record: dated, with photos, and showing what was done. For TR19® Grease cleans, the certificate comes through the BESCA Vent Hygiene Elite portal, ready for your insurer.

- Location
- St Albans (AL1, AL3, AL4)
- Wider area
- Hertfordshire
- Records
- Written report with photos
- Quotes
- A fixed price before any work starts
- Working hours
- Overnight and weekend work, 24/7 emergency callout
- Telephone
- 0345 646 2711
- Checked
- 30 October 2026
Places near St Albans
What else we do in St Albans
What we are called out for in St Albans
Cooking vapour carries grease into the canopy. Much of it is trapped by the filters so they gradually clog and airflow falls away.
Common reasons sites call us include:
- Filters that come out of the sink still dirty
- Filters that leave gaps in the canopy
- Gaps where filters have been removed
- Filter washing that keeps being missed
School kitchens, at schools like Loreto College for example, are typically cleaned in the holidays so no lunches are lost.
What your quote should include
- Which accreditations they hold, and whether you can check them
- How they set the interval to the next visit
- Whether inaccessible sections are listed on the report
- How VAT is shown on the quote
Why it’s worth doing now in St Albans
In St Albans, as everywhere, a filter service isn’t a substitute for TR19 cleaning. They do help keep the system in better shape between cleans, and that shows when the next clean comes round. Dirt and wear build up fastest on busy sites, and a place the size of St Albans has plenty of those.
The price reflects the work, not guesswork. That’s why every job is surveyed first, and the price is agreed before we start.
Why choose Duct Doctor in St Albans
- Fully insured
- Every job surveyed first
- BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- Out-of-hours work and a 24/7 emergency line
See what affects the cost or our accreditations and certificates.
What grease filter exchange looks like in St Albans
The Food Standards Agency lists about 61 pubs, bars and clubs and about 4 hotels, B&Bs and guest houses as registered food businesses within roughly a mile and a half of the centre of St Albans. Wherever they cook, the canopy, duct and fan collect grease just as a restaurant’s do. Fire safety in St Albans 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. In St Albans, food businesses are inspected by environmental health officers from St Albans City council. An officer looking round a kitchen will see the canopy, and grease there is hard to miss. A TR19® certificate and photo report after each clean gives you a record to show an inspector.
A kitchen near St Albans station that serves breakfast and dinner can run its extract twelve hours or more, which shortens the cleaning interval. If you run a church or community hall kitchen, near Church of St. Peter or elsewhere in St Albans, its extract still collects grease from every lunch and event.
St Albans is about 20 miles north-west of London, in Hertfordshire. We provide grease filter exchange for commercial premises of every kind in St Albans and the rest of Hertfordshire. Across Hertfordshire, we cover 381 places, St Albans among them. London is in our area too, about 20 miles from St Albans.
Every address in AL1, AL3 and AL4 is covered for grease filter exchange, from the main roads to the quietest streets. That includes premises on Gabriel Square, Jubilee Square and Old London Road and nearby roads. St Albans sits on or near the A414 and B651, which makes travel easy for grease filter exchange. Nearby, we also carry out grease filter exchange in Bernards Heath (1 mile north), Sopwell (1 mile south), St Stephens (1 mile south-west), Marshalswick (1 mile north-east) and Park Street (2 miles south). Within a short drive, we also cover Watford (7 miles south-west), Hemel Hempstead (6 miles west), Stevenage (13 miles north-east), Welwyn Garden City (7 miles north-east), Harpenden (5 miles north) and Hitchin (14 miles north). St Albans is one of the larger places we cover in Hertfordshire for grease filter exchange.
Around St Albans
In St Albans, that means kitchens and buildings near Alban City School, The Horn pub and Verulam School. St Albans has its own railway station: St Albans station. Well-known places in the area include St Albans Musical Museum (0.5 miles north-east) and The Maltings (under half a mile west). Not far away are The Wick Local Nature Reserve and Verulamium Lake.
Looking after it afterwards
Think of this as the after-treatment advice, in brief:
- Always run the extract while cooking
- Keep every filter in place during service
- Tell us if the menu or opening hours change
- Keep canopy surfaces wiped down
The next exchange is already in the diary. If cooking increases, we can change filters more often to keep up.
Filters that are left too long stop protecting the system. A regular cycle keeps the rest of the system cleaner until the next TR19 clean.
What grease filter exchange cannot fix
Grease filter exchange can’t fix everything, and we’d rather say so up front. It won’t put right:
- A noisy or failed extract fan
- Grease behind the filters that a swap can’t remove
- An extract that was undersized from the start
If in doubt, give us a ring on 0345 646 2711 or drop us a line and we will say what we think.
What we work on in St Albans
- Island canopies
- Mesh filters
- Restaurants and pubs
- Wall canopies
- Baffle filters
- School and hospital kitchens
For landlords and multi-site operators
The Fire Safety Order 2005 puts the duty to manage fire risk on the responsible person, and that can be the employer, the owner, a landlord, a facilities manager or a managing agent. Where responsibility is shared, records matter even more.
If you look after several sites, we can schedule visits across all of them on one quote. Each site gets its own report and pictures, so each one has its own record.
How it works
Your staff don’t need to do much on the day. Someone lets us in at the agreed time and shows us where everything is, and we take it from there. Afterwards, the area is left tidy and the written report follows. In the busier parts of St Albans, parking and roof access are the main things to plan.
- We count and measure the filters in every canopy.
- We agree a schedule that suits how much the kitchen cooks.
- At every visit, the greasy filters are lifted out.
- Clean, dry filters are fitted in their place, with no gaps left between them.
- If a filter is damaged or the plenum needs attention, we tell you.
Preparing for the visit
- Make sure equipment near the work can be switched off and left to cool
- Arrange a key holder or contact on site
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
Get a fixed quote
Want a quote for grease filter exchange? Please ring 0345 646 2711, or send details by email and tell us about the site. We’ll explain what we’d do and send a fixed quote before you commit to anything.
Advice
What staff can safely do
A few tasks are always specialist work: opening up ductwork, cleaning fans, drop testing fire dampers and measuring grease need training, the right equipment and safe access. Leave those to us.
Good housekeeping makes our visits easier, not unnecessary. Clean filters and tidy surfaces slow the build-up, but hidden parts of the system still need specialist attention.