Hertfordshire · Kitchen extract cleaning
Kitchen extract cleaning in Trowley Bottom, Hertfordshire
Kitchen extract cleaning for commercial sites in Trowley Bottom and across Hertfordshire. BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease.
- Poor airflow at the canopy
- An extract that has never been cleaned to TR19
- Rancid smells from grease in the duct
Looking after it afterwards
Here’s the after-treatment advice, in brief:
- Never cook with filters missing or out of place
- Keep the cleaning records where you can find them
- Book the next clean before the date on the report
- Keep the baffle filters clean
The certificate records when the clean was done, where and by whom. File it with the fire risk assessment and the maintenance log so it’s ready when anyone asks to see it.
Keep the outside of the canopy wiped and any grease cups emptied. It won’t replace a TR19 clean, but it slows what reaches the duct.
How we handle kitchen extract cleaning in Trowley Bottom
The ducts are where most of the grease hides. Access panels let us into the duct runs and risers, removing thick grease by hand, then using degreasers, hot water or steam to suit the deposit. Any section we can’t reach is recorded on the report and extra access panels can be added. Typical jobs include heavy grease build-up inside the duct runs and grease dripping from the canopy or filters, on horizontal duct runs, extract fans and canopies and hoods. Hood cleaning is where most enquiries from Trowley Bottom start: a clean that goes past the canopy into the duct and fan, backed by a certificate.
Most kitchens in Trowley Bottom fall into one of BESA’s three bands: every 3 months for 12–16 hours, every 6 months for 6–12 hours and every 12 months for 2–6 hours, adjusted by what the grease readings show.
Somewhere as small as Trowley Bottom, commercial kitchens are few: perhaps a pub, a school or care home kitchen, or a hall used for events. Every one of them still needs its extract kept clear of grease.
The sign-off is always in writing: a written report, dated and illustrated with photos, and for TR19® Grease cleans, a certificate issued through the BESCA VHE portal. It shows what was done and what, if anything, couldn’t be reached.
- Where
- Trowley Bottom (AL3)
- Wider area
- Hertfordshire
- Paperwork
- Certificate and photo report
- Quote
- A fixed quote up front
- When we work
- Nights, weekends or holidays to suit you
- Telephone
- 0345 646 2711
- Reviewed
- 30 October 2026
Leave it or put it right?
If there’s a fire and the extract hasn’t been cleaned, the paperwork becomes the problem. Many policies require cleaning to TR19, and an insurer can refuse or reduce a claim without proof. A certificate in the file answers that question. A planned visit to Trowley Bottom is easier to arrange than an emergency callout.
One small site or a whole estate, the quote is built the same way: the work involved, the access and the timing. You will have a fixed price before any work starts.
Why choose Duct Doctor in Trowley Bottom
- Each visit written up, with pictures
- One contact for all your sites in London and the South East
- We diagnose before we treat
- Full insurance on every job
Read our cost guide or how to check a contractor.
Grease, kitchens and Trowley Bottom
The Food Standards Agency lists about 4 bars, pubs and nightclubs as registered food businesses within roughly a mile and a half of the centre of Trowley Bottom. Where they serve hot food, their kitchen extracts need cleaning to TR19® like any restaurant’s. Trowley Bottom sits within the area of Hertfordshire Fire and Rescue Service. Its fire safety officers can audit commercial kitchens, and grease in the extract is part of a kitchen’s fire risk. Environmental health officers from Dacorum council inspect food businesses in Trowley Bottom. The cleanliness of the kitchen and its equipment, extraction included, is part of what they check. A TR19® certificate and photo report after each clean gives you a record to show an inspector.
Childwickbury Manor, about 4.5 miles south-east, is one of the historic houses near Trowley Bottom; if you run event catering at a venue like that, cleans can be booked between functions. If you run catering at a healthcare site, such as a hospital like Hemel Hempstead Hospital about 4.5 miles south, the extract may need cleaning more often than a part-time kitchen.
Trowley Bottom is about 4 miles west of Harpenden, in Hertfordshire. Whatever kind of site you run in Trowley Bottom, kitchen extract cleaning is something we can help with. Visits can be booked for evenings, overnight or weekends so the site keeps running. Our Hertfordshire coverage runs to 381 places, Trowley Bottom among them. There’s also a page for Milton Keynes, roughly 21 miles from Trowley Bottom.
Here we cover the AL3 postcode area for kitchen extract cleaning. If you need kitchen extract cleaning at premises on Trowley Hill Road, Trowley Bottom and Wood End Lane or a nearby road, our technicians can take on the work. Neighbouring places we cover for kitchen extract cleaning include Flamstead (1 mile north-east), Friar's Wash (1 mile north-east), Markyate (2 miles north-west), Roe End (2 miles north-west) and Jockey End (2 miles west). Larger places within reach include Watford (11 miles south), Hemel Hempstead (4 miles south), Stevenage (13 miles north-east), St Albans (6 miles south-east), Welwyn Garden City (11 miles east) and Harpenden (4 miles east).
Near you in Trowley Bottom
Locally, jobs take us to businesses close to Rose And Crown Public House and the streets around them. The closest station to Trowley Bottom is Harpenden station, roughly 3.8 miles east. Nearby you’ll also find Luton Castle (4.4 miles north) and Hemel Hempstead Hospital (4.5 miles south). Not far away are Landpark Wood.
What we do, step by step
When we arrive, we check the system against the survey or the pictures you sent. If anything is different, we talk it through with the person on site before carrying on. After that, the work takes a single shift for most kitchens, with long duct runs and tall risers needing more time. In a small place like Trowley Bottom, the journey is planned ahead and the visit arranged around the site’s hours.
- We start with a survey, so we know every part of the system before we quote.
- We measure the grease at set points along the system, then give you a fixed price.
- With the kitchen closed and equipment off and cool, the area is sheeted.
- Canopy, plenum, filters, duct runs, risers, fan and discharge are all cleaned to TR19® Grease.
- We test again, photograph the result and issue your TR19 certificate and photo report.
Preparing for the visit
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
- Plan for cooking equipment or plant to be off before we arrive
- Let us know when the site is closed or quiet
Getting a quote
Photos are the quickest way to a quote: wide shots of the system, close-ups of anything that worries you and how we’d get to it. Add the site type and your opening hours, and many jobs can be priced from that alone.
Advice
Different parts, different methods
Extract fan and discharge
The fan pulls the air through the whole system, and grease that gets past everything else ends up on its blades. It’s isolated, opened and cleaned as part of the TR19 clean.
Restaurant and pub kitchens
Busy restaurant and pub kitchens often cook for long hours, frying and grilling, so their cleaning interval is often 3 or 6 months under BESA guidance. We clean after close or before opening.
Common problems we fix in Trowley Bottom
How fast grease builds up depends mostly on how long the kitchen cooks each day. BESA guidance sets minimum cleaning intervals of every 3 months for 12 to 16 hours a day, 6 months for 6 to 12 hours, and 12 months for 2 to 6 hours. Those are minimums, and grease readings can show a kitchen needs cleaning sooner.
What we’re most often called out for:
- Proof of cleaning requested by an insurer
- A smoky, hot kitchen with weak extraction
- Grease smells coming from the extract
- An inspection that picked up a dirty extract
Church and community hall kitchens, near Church of St Leonard or anywhere around Trowley Bottom, are easy to forget, but their extracts collect grease like any other.
What your quote should include
- How areas they can’t reach will be recorded
- When the next visit should be, and why
- Their accreditations, such as BESCA Vent Hygiene Elite, CHAS or SafeContractor
- Whether they’re fully insured
Your questions about kitchen extract cleaning in Trowley Bottom
Who would carry out a food hygiene inspection at a kitchen in Trowley Bottom?
In Trowley Bottom, it’s Dacorum council that carries out food hygiene inspections. An officer may look up into the canopy, so clean filters on the day and a recent certificate on file both help.
Can you work in Trowley Bottom outside opening hours?
Yes, nights and weekends are routine for us. Your customers, staff or residents in Trowley Bottom needn’t be disturbed. Your opening times are the first thing we ask for.
Can you quote from pictures?
Yes, if we can see what we need. Otherwise, we book a survey at a time that suits the site, and the quote follows that.
What does TR19 mean?
It’s the industry benchmark for cleaning ventilation and kitchen extract systems, written by BESA. It sets out inspection, cleaning and record keeping, and it takes a risk-based approach.
How much notice do you need?
It depends on the time you need and how big the job is. Tell us your preferred dates when you ask for a quote, and if it’s an emergency, call us any time.
What accreditations do you hold?
Our work is to BESA TR19® Grease, and we are a BESCA Vent Hygiene Elite member, and certificates go through the BESCA Vent Hygiene Elite portal. Duct Doctor has been trading since 2009.
Which sectors do you work in?
Any site with a kitchen or a ventilation system to look after, from a single café to a large school. Hotels, schools, care homes, offices, shops and leisure sites are all part of our work.
What does a TR19 kitchen extract clean include?
We clean every part the grease travels through. Canopy, plenum, filters, ductwork, risers, fan and discharge are all included, reached through access panels where needed.
Multi-site and managed buildings
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.
Facilities teams in offices, schools and healthcare sites book us too across Hertfordshire. Work can be phased by floor, building or site to keep disruption down.
Towns and villages near Trowley Bottom
Other services in Trowley Bottom
What affects the quote in Trowley Bottom
There’s no set price list, because no two systems are the same. What we look at:
- The size of the system
- Travel, parking and unloading
- A single visit or a regular plan
- The condition we find in the survey
What you pay depends on the size of the system, what state it’s in and access to every part of it. We give you a fixed price before we start, so there are no surprises.
Asking for a quote
Before you ask for a quote, gather:
- The postcode and the type of business
- Any previous report or certificate
- Any access panels or hatches you can see
- When the site is open and when it’s quiet
For a fixed quote, phone us on 0345 646 2711, or send details by email with the site type, your trading hours and a short description of the system. Photos and the last report, if you have one, make the quote quicker. You will typically have a quote within one working day.