Hertfordshire · Canopy and hood cleaning
Canopy Cleaning in Tewin
Professional canopy cleaning in and around Tewin, booked around your opening hours and signed off in writing with pictures.
- A filter housing caked in grease
- A canopy that no longer draws the smoke away
- Grease channels that no longer drain
Canopy cleaning in Tewin, done properly
If the canopy in Tewin is dripping, sticky or overdue a clean? A photo of the canopy and filters is a good start when you call us on 0345 646 2711 or email us, and we’ll give you a fixed quote for canopy cleaning, normally within one working day. Typical jobs include a canopy that no longer draws the smoke away and filters that never seem to stay clean, on plenum chambers, baffle filters and wall canopies.
In a village or hamlet like Tewin, the kitchens that need extract cleaning are typically 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.
Duct Doctor has been trading since 2009, and we are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 are in place too, and we carry full insurance.
- Place
- Tewin (AL6)
- Wider area
- Hertfordshire
- Reporting
- Certificate plus before-and-after photos
- Quote
- Fixed quote, typically within a working day
- Working hours
- Overnight and weekend work, 24/7 emergency callout
- Telephone
- 0345 646 2711
- Checked
- 30 October 2026
Why act early in Tewin
A greasy canopy is fuel directly above the flame. A flare-up can catch it and be drawn into the plenum and duct, where a fire is much harder to stop. Cleaning it removes that fuel. In a small place like Tewin, a system that fails can take a site out of use.
When the work has to happen, how we reach it and how big the site is can all change the price. We take each of them into account and give you a fixed price before work begins.
What you get with us
- Every job surveyed first
- Accredited under CHAS and SafeContractor, with ISO 9001
- Work around your opening hours, with 24/7 emergency cover
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
Also in Tewin
Different parts, different methods
Wall canopies
Long wall canopies often have several filter banks. Each section’s plenum and housing is cleaned in turn, with pictures for each.
Pub and hotel kitchens
Few pubs and hotels can shut the kitchen for a day. Canopy cleans are done late at night or early in the morning so the kitchen keeps trading.
What happens on the day
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. Somewhere as small as Tewin, the date and timings are agreed with you well before the day.
- We start by checking the canopy, filters and plenum.
- Cooking equipment is left to cool and the area under the canopy protected.
- We remove the grease filters and clean the plenum and filter housing.
- The canopy is cleaned inside and out, including troughs and seams.
- Filters go back, the area is cleaned down and photos are taken.
Preparing for the visit
- Let us know when the site is closed or quiet
- Let us know about permits to work or site inductions
- Move anything stored near the system
Getting a quote
Quoting starts with a diagnosis, either from pictures and details you send or from a site visit. After that, you get a fixed price for the work, before work begins.
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Kitchen extracts in Tewin
There are about 5 restaurants, cafés and canteens in and around Tewin, up to about a mile and a half out, according to the Food Standards Agency’s register. Where they cook under a hood, the plenum behind the filters is where grease hides. Tewin is covered by 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 Tewin, food businesses are inspected by environmental health officers from East Hertfordshire 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.
If you run a church or community hall kitchen, near Church of St Peter or elsewhere in Tewin, its extract still collects grease from every lunch and event. Healthcare kitchens, like those at hospitals such as Queen Elizabeth II Hospital (about 2.8 miles south-west), often cook for long hours, which puts them in BESA’s heavier-use bands.
Tewin is about 2 miles north-east of Welwyn Garden City, in Hertfordshire. Sites in Tewin get the same service as everywhere we cover: diagnosis first, a fixed price, out-of-hours working where needed and a written report with photos. Our Hertfordshire coverage runs to 381 places, and Tewin is one of them. For sites nearby, see our London page (22 miles or so).
We cover every part of the AL6 postcode area for canopy cleaning and the roads nearby. We cover sites on Upper Green Road, Godfries Close and Harwood Close and the roads around them. Nearby, we also carry out canopy cleaning in Tewin Wood (1 mile north), Burnham Green (1 mile north-west), Harmer Green (1 mile north-west), Haldens (1 mile west) and Bramfield (1 mile east). Larger places within reach include Watford (15 miles south-west), Hemel Hempstead (14 miles west), Stevenage (6 miles north), St Albans (9 miles south-west), Bishop's Stortford (14 miles east) and Harpenden (8 miles west).
Landmarks near Tewin
In Tewin, that means kitchens and buildings near Rose And Crown Public House and Panshanger Park. The closest station to Tewin is Welwyn North station, about 1.6 miles west. Nearby you will also find Howard Centre (2.4 miles south-west) and Queen Elizabeth II Hospital (2.8 miles south-west). The countryside around Tewin includes Tewin Orchard and Hopkyns Wood.
What your team can do, and what needs us
Good housekeeping makes our visits easier, not unnecessary. Clean filters and tidy surfaces slow the build-up, but the parts you can’t see still need a specialist at the right interval.
Away from the kitchen, the in-house job is mainly checking: clear grilles, a log of filter changes and reporting anything odd. Cleaning inside ducts and units is specialist work.
For landlords and multi-site operators
Where a tenant occupies the premises but the landlord owns the building, it’s worth checking the lease for who maintains the systems. We’re happy to deal with either side and send the paperwork to whoever needs it.
If you look after several sites, we can plan visits across the whole estate and price them together. Each site gets its own report and pictures, so records stay tidy.
Tewin questions
Do you work in villages like Tewin?
Yes, we work in villages as well as towns, and Tewin is covered. The journey is planned ahead, so a few details about the route help.
Who would carry out a food hygiene inspection at a kitchen in Tewin?
In Tewin, it’s East Hertfordshire council that carries out food hygiene inspections. Have your latest TR19® certificate and photo report to hand, as an officer may ask how the extract is maintained.
Do you clean the grease filters as part of a canopy clean?
The filters are removed, cleaned and put back. Each filter is checked for fit as it goes back, because gaps let grease through.
How long does canopy cleaning take?
That depends on the size of the canopy and how much grease is on it. Typically it takes a few hours for most canopies.
How far ahead should we book?
For planned work, earlier is better, particularly if your next visit is nearly due. Emergencies are different, because our line is open 24/7.
What information do you need?
The site address, the type of premises and your opening hours, along with a few pictures and any previous report.
What paperwork do I get after a canopy clean?
Every clean comes with a photo report, listing what was cleaned. Where the whole system is cleaned, you also get a TR19 certificate through the BESCA Vent Hygiene Elite portal.
What types of premises do you cover?
All kinds of commercial and public premises: from restaurants, pubs and hotels to schools, hospitals, care homes, offices, shops and food production sites. Work is timed around how each site runs.
What affects the quote in Tewin
Before we fix a price, we need to know a few things. We check:
- One-off work versus a regular cycle
- How big the system is
- Parking and loading at the site
- What state the system is in
The price reflects the work, not guesswork. That is why we survey first, from pictures or on site, and the price is agreed before work begins.
What to send for a quote
To speed up the quote, please include:
- Your last certificate, test record or report
- How we’d reach plant on a roof or in a plant room
- The site address and the type of premises
- Wide pictures of the system and the area around it
Want a quote for canopy cleaning? Please give us a ring on 0345 646 2711, or send details by email with a few details about the site. We’ll explain what we’d do and send a fixed quote before anything is booked.
Signs you need canopy cleaning in Tewin
Grease that runs down the inside of a canopy gathers in its gutters and troughs. Left to fill up, they spill over, and grease ends up dripping from the canopy edge.
It’s time to book a visit if you see:
- Filters that never seem to stay clean
- A hood coated in old grease
- Condensation running down the canopy
- Poor capture at the hood
Term dates shape school work: for a school like Ridgeway Academy, an extract clean fits neatly into a half-term or summer break.
What to look for in a quote
- Their accreditations, such as BESCA Vent Hygiene Elite, CHAS or SafeContractor
- Whether the quote shows VAT
- Whether the whole system is included, or only the parts that are easy to reach
- When they can work, and whether that is outside your opening hours