Hertfordshire · Ductwork cleaning
Duct cleaning in Tewin Wood
Ductwork cleaning across Tewin Wood and nearby, booked around your opening hours and finished with a written report and pictures.
- Readings above 200 microns from a grease thickness test
- Grease leaking from duct joints
- Duct runs with no cleaning record
How we handle ductwork cleaning in Tewin Wood
Not every duct has enough access panels. Where a section cannot be reached, TR19 expects it to be recorded on the report, and new panels can be fitted to reach it in future. It’s better to know than to assume. We are often asked to deal with an insurer asking for TR19 evidence and a rancid smell from the extract duct, across multi-storey ducts, access panels and bends and junctions.
In a village or hamlet like Tewin Wood, the kitchens that need extract cleaning are normally a pub, a school, a care home or a hall kitchen, wherever there is one. Each still has a canopy and duct that collect grease, whatever the size of the place.
Insurers, fire officers and environmental health officers all look at records. That is why every job is written up in a report with pictures, plus a TR19® certificate through the BESCA VHE portal where the work is a TR19® Grease clean.
- Where
- Tewin Wood (AL6)
- Region
- Hertfordshire
- Paperwork
- Certificate plus before-and-after photos
- Quote
- Fixed quote, typically within a working day
- Hours
- Nights, weekends or holidays to suit you
- Telephone
- 0345 646 2711
- Last updated
- 30 October 2026
Landlords, agents and facilities managers
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.
Managing agents often deal with us directly. Tell us the site, the work and the access arrangements, and we’ll send a fixed quote.
Keeping the system healthy
Results last longer with the right care. Here’s what we suggest:
- Have the grease measured if cooking hours go up
- Ask us about extra access panels where sections cannot be reached
- Tell us if grease leaks from the ductwork
- Keep your cleaning records together
You’ll have a recommended date for the next clean, worked out from the grease we found and how long you cook each day, in line with BESA guidance.
Watch for warning signs between cleans: drips from the ductwork, stale smells or a noisy fan. Testing will show whether any section has reached 500 microns.
Ductwork cleaning in Tewin Wood: the local picture
According to Food Standards Agency records, there are about 7 bars, pubs and nightclubs in Tewin Wood and the streets around it, up to about 1.5 miles out. Breakfasts, bar meals and functions all put grease into the extract wherever they’re cooked. In Tewin Wood, food businesses are inspected by environmental health officers from East Hertfordshire council. They look at how clean the premises and equipment are, and the kitchen extract is part of that. Before-and-after photos from each clean are a simple way to show the extract is in hand. The fire and rescue service for Tewin Wood is Hertfordshire Fire and Rescue Service. In most workplaces, including commercial kitchens, it’s the fire and rescue authority that enforces the Fire Safety Order.
School kitchens, at schools like Ridgeway Academy for example, are typically cleaned in the holidays so no lunches are lost. Healthcare kitchens can’t easily close, so their extracts are cleaned overnight or between meal services; the nearest hospital to Tewin Wood is Queen Elizabeth II Hospital, about 3.5 miles south.
Tewin Wood is about 3 miles north-east of Welwyn Garden City, in Hertfordshire. Whether your site is in the middle of Tewin Wood or further out, we cover ductwork cleaning for every kind of premises, from a single unit to a large public building. Tewin Wood is one of 381 places in Hertfordshire we cover for commercial clients. Our London page covers sites nearby (23 miles or so).
Ductwork cleaning in AL6 is surveyed, quoted and booked the same way as anywhere else. That includes premises on Cowpers Way, Desborough Drive and Firs Walk and the roads around them. We also cover Burnham Green (1 mile north-west), Bull's Green (1 mile north), Harmer Green (1 mile west), Tewin (1 mile south) and Datchworth (1 mile north). Further out, we also cover Watford (15 miles south-west), Hemel Hempstead (14 miles south-west), Stevenage (5 miles north), St Albans (9 miles south-west), Bishop's Stortford (14 miles east) and Welwyn Garden City (3 miles south-west).
Near you in Tewin Wood
Around Tewin Wood, our work takes us to kitchens and buildings near Belmont pub and the streets around them. The nearest railway station is Welwyn North station, roughly 1.4 miles west of the centre. A little further out are Howard Centre (2.8 miles south-west) and Hertford Castle (4.3 miles south-east). Open spaces near Tewin Wood include Tewin Orchard and Hopkyns Wood.
Staff cleaning versus specialist work
A few tasks are always specialist work: entering ducts, working on fans, testing dampers and taking grease readings call for the right kit, training and safe access. Leave those to us.
Day-to-day cleaning is something your team can do: wiping canopies, washing grease filters and recording it in a log. Inside the ducts, risers and fan is specialist work, and that’s where we come in.
Fixed quotes for ductwork cleaning in Tewin Wood
The survey tells us what the work involves. The main factors are:
- Travel, parking and unloading
- The number of sites or systems
- Working hours and out-of-hours timing
- One-off work versus a regular cycle
What you pay depends on how big the system is, the condition it’s in and how easy it is to reach. We give you a fixed price before work begins, so you know where you stand.
Asking for a quote
You do not need the technical terms. Just send:
- Photos showing the whole system and its surroundings
- Any symptoms, from odd noises to smells or leaks
- How we’d reach plant on a roof or in a plant room
- When the site is open and when it’s quiet
If you need ductwork cleaning in Tewin Wood, phone us on 0345 646 2711, or send details by email. Tell us what kind of premises it is and when it’s open, and send pictures or your last report if you can. We typically send a fixed quote within one working day.
What we’re called out for in Tewin Wood
Many ducts don’t have enough access panels. Sections between panels go uncleaned, sometimes since the system was installed, and grease there keeps thickening unseen.
Clients typically contact us when they notice something like this:
- Heavy grease at the base of a riser
- Hardened, baked-on grease in long horizontal runs
- A rancid smell from the extract duct
- Duct runs that can’t be reached
Historic houses near Tewin Wood, such as Digswell House about 2.1 miles south-west, are a reminder that older buildings with event kitchens can have long, awkward duct routes.
Comparing quotes
- Whether the figure could change on the day
- Whether the whole system is included, or only the parts that are easy to reach
- What happens if part of the system cannot be accessed
- Proof of insurance
How the visit works
Your staff do not 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. For a village or hamlet like Tewin Wood, tell us about narrow lanes, gates and parking when you book.
- We start by working out how the duct runs and where it can be opened.
- Set points along the runs are tested for grease.
- Through the access panels, thick grease is removed by hand first.
- Next the ducts and risers are degreased, using whatever suits the deposit.
- We test again, take pictures and note any part that couldn’t be reached.
Preparing for the visit
- Make sure equipment near the work can be switched off and left to cool
- Move anything stored near the system
- Mention any sign-in, permit or induction we need
Ask for a quote
Photos are the quickest way to a quote: the system from a couple of angles, plus any access panels or hatches. Add the site type and your opening hours, and many jobs can be priced from that alone.
Advice
Tewin Wood questions
Who is the fire and rescue service for Tewin Wood?
That’s Hertfordshire Fire and Rescue Service. If a fire safety officer visits a commercial kitchen, they may ask about the fire risk assessment and how the extract is kept clean.
Which council inspects kitchens in Tewin Wood?
Food hygiene inspections in Tewin Wood are carried out by East Hertfordshire council. An officer may look up into the canopy, so clean filters on the day and a recent certificate on file both help.
How often should kitchen ducts be cleaned?
The duct is cleaned as part of the whole system, at intervals set by BESA guidance, from every 3 months for heavy use to every 12 months for light use. Readings tell you if it needs to be more often.
Can one contract cover all our sites?
Yes. Send the list of sites and the work at each and you’ll get one fixed quote.
How is kitchen extract ductwork cleaned?
We survey the route, test the grease, then open the access panels. We clean the runs and risers section by section, and test again when we’re done.
Do we have to stop cooking while the ducts are cleaned?
We plan the clean when you’re not cooking. Most kitchens book overnight or weekend cleans, so no service is lost.
Can you quote from photos?
In many cases, yes. With good pictures, the site type and your last report, we can price many jobs. Where we can’t see enough, we arrange a survey.
What is TR19?
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.
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When it’s something else
Ductwork cleaning can’t fix everything, and we’ll tell you before any work starts. It will not put right:
- Ductwork that was poorly designed
- Sections that can’t be reached safely without new access (those are recorded, and panels can be fitted)
- Fire dampers that don’t close (they need testing and remedials)
Not sure which it is? You can phone us on 0345 646 2711 or use the quote form and we’ll tell you honestly before booking.
What the work covers
- Vertical risers
- Access panels
- Attenuators
- Multi-storey ducts
- Horizontal duct runs
- Bends and junctions