Hertfordshire · Canopy and hood cleaning
Canopy Cleaning in Tewin Wood
Deep cleaning of kitchen canopies, hoods, plenums and grease filters, inside and out for commercial sites in Tewin Wood and across Hertfordshire. BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease.
- A filter housing caked in grease
- Fat running down the front of the hood
- Filters that never seem to stay clean
When something else is needed
We’d rather tell you now than book work that will not help, so these are the things it will not cover:
- Bent or broken filters
- Poor airflow from a fan that needs repair
- A hood that doesn’t cover the cooking line
If you are not sure, just phone us on 0345 646 2711, or email photos and we’ll give you a straight answer before booking.
What we work on in Tewin Wood
- Baffle filters
- Grease gutters
- Canopy light fittings
- Wall canopies
- Plenum chambers
- Island canopies
Canopy cleaning in Tewin Wood, done properly
Canopy cleaning is part of every full TR19® Grease clean, but some sites need the canopy done between full cleans. Where that is the case, we will be clear that the ducts and fan are not included, so your records stay accurate. The work covers island canopies, wall canopies and baffle filters, and common reasons people get in touch are filters that never seem to stay clean and an EHO comment about the canopy.
Somewhere as small as Tewin Wood, 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 report is your system’s health record: a dated account with photos of everything we did. For TR19® Grease cleans, the certificate comes through the BESCA Vent Hygiene Elite portal and sits alongside the report.
- Location
- Tewin Wood (AL6)
- Region
- Hertfordshire
- Reporting
- Certificate and photo report
- Quotes
- A fixed price before work begins
- Working hours
- Out of hours as standard, 24/7 emergency line
- Call
- 0345 646 2711
- Updated
- 30 October 2026
Do you need canopy cleaning in Tewin Wood?
Air straight off the range hits the canopy first. Grease from the vapour lands on the canopy’s inner surfaces, its joints and its filters, and the plenum behind them collects the rest.
Look out for these warning signs:
- Greasy streaks across the canopy
- Grease channels that no longer drain
- Fat running down the front of the hood
- Condensation running down the canopy
If your kitchen is in a listed or historic building, like the houses around Tewin Wood (Digswell House is about 2.1 miles south-west), fitting access panels needs care.
What your quote should include
- How areas they can’t reach will be recorded
- Proof of insurance
- How they set the interval to the next visit
- Whether the whole system is included, or only the parts that are easy to reach
What your team can do, and what needs us
Away from the kitchen, the in-house job is mainly checking: keeping grilles clear, noting unusual noise or smells and logging filter changes. The inside of ducts and units needs a specialist.
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.
What affects the cost of canopy cleaning
Every site gets its own quote. These are the things that affect it:
- Where the site is and how we reach it
- Working hours and out-of-hours timing
- Access, including roofs, risers and ceiling voids
- The scale of the work
What you pay reflects the actual work. That is why we survey first, from photos or on site, and the price is agreed before any work starts.
Helping us quote
To speed up the quote, please include:
- The site address and the type of premises
- Photos showing the whole system and its surroundings
- The paperwork from the last visit, if you have it
- The roof, plant room or outside wall the system runs to
Quoting starts with a diagnosis, from your photos and details or, where that isn’t enough, a survey on site. Then we send a fixed price, before any work starts.
Towns and villages near Tewin Wood
More services for Tewin Wood
Why it’s worth doing now in Tewin Wood
Drips from a dirty canopy land on the cooking line. That is a hygiene problem as well as a fire one, and EHOs look at the cleanliness of the premises and equipment. Our emergency line runs 24/7, but a planned visit to Tewin Wood is calmer for everyone.
Working hours, access and the scale of the site all affect the cost. We take each of them into account, and the price is fixed before we start.
Why choose Duct Doctor in Tewin Wood
- One contact for all your sites in London and the South East
- CHAS and SafeContractor accredited, with ISO 9001
- A fixed price before any work starts
- Full insurance on every job
Read how cleaning jobs are priced or how to check a contractor.
Your questions about canopy cleaning in Tewin Wood
Do you do school kitchen extract cleaning in Tewin Wood in the summer holidays?
Yes, out-of-term visits are normal for schools. With about 3 schools and colleges on the FSA’s register within roughly a mile and a half of Tewin Wood, it pays to plan holiday dates ahead. Tell us your holiday dates and we will book the visit for when the site is empty.
Is Tewin Wood within the area you cover?
Yes. Tewin Wood is within the area we cover across London and the South East. Just mention lanes, gates or anything else about the site when you book.
Is TR19 a legal requirement?
Not in itself. TR19® is the benchmark insurers, fire officers and EHOs check against, and many insurance policies ask for proof of TR19® cleaning. The legal duty sits in the Regulatory Reform (Fire Safety) Order 2005, which applies in England and Wales.
Who is responsible for fire safety on the premises?
The Fire Safety Order 2005 calls them the responsible person: normally the employer or whoever controls the premises. In shared or managed buildings, a landlord, facilities manager or managing agent can share the duty.
Do you work with multi-site operators?
Yes. Send the list of sites and the work at each and we’ll quote them together.
Will we have to shut during the visit?
Not typically. The area we are working in has to be out of use while we’re there, so we book a time when it would be closed anyway.
How much of the canopy do you clean?
We clean the canopy inside and out, along with its seams and grease channels. The plenum and filter housing behind the filters are cleaned too.
What happens if you cannot reach some of it?
We never leave them off the paperwork. The report says which parts couldn’t be reached and why, along with a quote to put access in.
How the job changes from site to site
Wall canopies
The back of a wall canopy is hard to reach and easy to miss. We remove the filters to reach it and degrease it properly.
Grease troughs and gutters
A blocked or full trough is the usual cause of grease dripping from the canopy. Cleaning it clears the drip.
What canopy cleaning looks like in Tewin Wood
The Food Standards Agency lists about 7 pubs and bars as registered food businesses within 1.5 miles or so of the middle of Tewin Wood. Where they serve hot food, their kitchen extracts need cleaning to TR19® like any restaurant’s. Hertfordshire Fire and Rescue Service covers Tewin Wood. 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. Environmental health officers from East Hertfordshire council inspect food businesses in Tewin Wood. Extraction counts as kitchen equipment, so its condition can come up on the day. A TR19® certificate and photo report after each clean gives you a record to show an inspector.
If you run catering at a healthcare site, such as a hospital like Queen Elizabeth II Hospital about 3.5 miles south, the extract may need cleaning more often than a part-time kitchen. For schools such as Ridgeway Academy, kitchen extract cleaning is normally booked for the holidays, when the canteen is closed.
Tewin Wood is about 3 miles north-east of Welwyn Garden City, in Hertfordshire. We provide canopy cleaning for businesses, landlords and public buildings in Tewin Wood and the rest of Hertfordshire. Our area takes in 381 places across Hertfordshire, from busy centres to quieter spots. Our London page covers sites nearby, about 23 miles away.
Every address in AL6 is within our area for canopy cleaning, from the main roads to the quietest streets. We cover sites on Cowpers Way, Desborough Drive and Firs Walk and nearby roads. If your site is just outside Tewin Wood, we 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). We also work in nearby towns such as 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).
Landmarks near Tewin Wood
Locally, jobs take us to businesses close to Belmont pub, among other places. The nearest railway station is Welwyn North station, about 1.4 miles west of the centre. Nearby you’ll also find 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.
What we do, step by step
Our technicians bring everything the work needs, from protective sheeting to tools and access equipment. All we need from you is clear access and the right equipment switched off. The visit takes an hour or two for one small canopy, longer where there are several. Photos of the system and how to reach it help us plan a visit to Tewin Wood.
- First the canopy is surveyed, by photos or in person.
- Equipment below is switched off and left to cool, then sheeted.
- With the filters out, the plenum and housing are cleaned back.
- Inside and out, the canopy and its grease channels are degreased.
- We refit the filters, clear up and photograph the finished canopy.
How to prepare
- Let us know about parking and loading
- Arrange a key holder or contact on site
- Dig out any earlier paperwork for the system
Ask for a quote
To help us quote: the address, the type of site and when it’s open, pictures of the system and the last certificate or report, if there is one. Once you have those, ring 0345 646 2711 or use the quote form.