Hertfordshire · Canopy and hood cleaning
Canopy and hood cleaning in Old Knebworth, Hertfordshire
Our technicians work in Old Knebworth on canopy cleaning. Fixed quotes, work around your opening hours and photo reports on every job.
- A sticky, discoloured canopy
- An EHO comment about the canopy
- Poor capture at the hood
When to call us in Old Knebworth
Steam and condensation make canopy grease harder to deal with. As the canopy cools, condensation forms, carrying grease with it. Drips onto the cooking line are a common result.
What we’re most often called out for:
- Wet, greasy drips from the hood
- A hood coated in old grease
- Grease dripping from the canopy edge
- A canopy flagged at an environmental health inspection
Where a hall near Church of St Mary and St Thomas, or anywhere in Old Knebworth, hosts lunch clubs or events, its extract gathers grease just as a café’s does.
Before booking anyone
- What records you’ll receive afterwards
- Whether the figure could change on the day
- What happens if part of the system can’t be accessed
- Whether a survey comes first
Canopy cleaning in Old Knebworth, done properly
Canopy cleaning is part of every full TR19® Grease clean, but a canopy can also need cleaning on its own, between full system cleans. Where that is the case, we will be clear that the ducts and fan are not included, so your records stay accurate. We are often asked to deal with a sticky, discoloured canopy and a filter housing caked in grease, on island canopies, wall canopies and canopy light fittings.
Work in a small place like Old Knebworth starts with a call to agree access and timings, and the clean itself is the same full TR19® job as in any town: canopy to discharge, then a TR19® certificate and a photo report.
Duct Doctor has been trading since 2009, and we’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 are in place too, and we are fully insured.
- Place
- Old Knebworth (SG3)
- Region
- Hertfordshire
- Paperwork
- TR19® certificate and photo report
- Quotes
- A fixed price before we start
- Working hours
- Out of hours as standard, 24/7 emergency line
- Call
- 0345 646 2711
- Updated
- 30 October 2026
Nearby places to Old Knebworth
Other services in Old Knebworth
Canopy cleaning around Old Knebworth
Food Standards Agency data counts about 17 cafés, restaurants and staff canteens and about 11 takeaways within about 1.5 miles of central Old Knebworth. Every kitchen among them that cooks under a canopy has a hood, plenum and filters collecting grease. Kitchens in Old Knebworth get their food hygiene inspections from North Hertfordshire council. An officer looking round a kitchen will see the canopy, and grease there is hard to miss. Our report lists what was cleaned and when, which is useful to have ready. Old Knebworth is covered by Hertfordshire Fire and Rescue Service. The Fire Safety Order puts the duty on whoever runs a kitchen to control its fire risk, and a greasy duct is fuel.
Knebworth House, about 0.2 miles north-west, is one of the historic houses near Old Knebworth; 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 Lister Hospital about 3.7 miles north, the extract may need cleaning more often than a part-time kitchen.
Old Knebworth is about 3 miles south-west of Stevenage, in Hertfordshire. We provide canopy cleaning for businesses, landlords and public buildings in Old Knebworth and the rest of Hertfordshire. 381 places in Hertfordshire are on our list, from busy centres to quieter spots. London is in our area too, about 26 miles from Old Knebworth.
Postcode districts we cover here for canopy cleaning: SG3. If you need canopy cleaning at premises on Old Knebworth Lane and Park Lane or anywhere close by, our technicians can take on the work. Other places close to Old Knebworth include Nup End Green (1 mile south-west), Driver's End (1 mile south-west), Rableyheath (1 mile south), Pottersheath (1 mile south) and Langley (2 miles north-west). Within a short drive, we also cover Hemel Hempstead (13 miles south-west), Stevenage (3 miles north-east), St Albans (10 miles south-west), Welwyn Garden City (5 miles south), Harpenden (7 miles south-west) and Hitchin (6 miles north-west).
Local landmarks in Old Knebworth
In Old Knebworth, that means kitchens and buildings near Knebworth Park and Robin Hood And Little John Public House and the streets around them. For rail, the closest station is Knebworth station, about 1 mile east of the centre. Other landmarks nearby include Lister Hospital (3.7 miles north) and Stevenage Museum (2.2 miles north). Open spaces near Old Knebworth include Mardley Heath.
Your questions about canopy cleaning in Old Knebworth
Will you come out to Old Knebworth?
Yes. Villages and rural sites across the South East are part of our work, Old Knebworth included. Just mention lanes, gates or anything else about the site when you book.
Who inspects food businesses in Old Knebworth?
In Old Knebworth, it’s North Hertfordshire council that carries out food hygiene inspections. How often a business is inspected depends on the risk rating the council gives it, so it’s worth staying ready all year.
Are you fully insured?
Yes, fully. We also hold CHAS and SafeContractor, for sites that check contractor safety.
What happens to the waste?
We contain it and take it with us. We collect grease, debris and waste water as we go, so it does not spread.
Which sectors do you work in?
Restaurants and pubs, hotels, schools and colleges, hospitals and care homes, offices and retail, plus food production and leisure sites.
Do we need to close the kitchen for a canopy clean?
Only while we are working, and we work out of hours, so most kitchens don’t lose a service. Evenings, overnight and weekends are all possible.
Can you look after several sites?
Yes. Our area covers London and the South East, so sites at different addresses can be planned together as one programme. Each site gets its own report and pictures.
Does a canopy clean meet TR19?
A TR19® Grease clean covers the whole system, not just the canopy. A canopy clean helps between full cleans, but the ducts and fan still need doing, and the report will say what was covered.
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. That is our job.
When your team notices a problem between visits, such as dripping grease, a noisy fan, a smell or a filter that won’t come clean, it’s best reported rather than tackled in-house. We can diagnose it and quote.
What affects the cost of canopy cleaning
A fixed price needs a few facts first. We look at:
- Where the site is and how we reach it
- Whether it’s a one-off visit or part of a schedule
- The size of the system
- When the work can happen, such as evenings, overnight or weekends
When the work has to happen, how we reach it and how big the site is can all change the price. Each of those is built into the quote and give you a fixed price before any work starts.
What we need to know
To speed up the quote, send us:
- Wide photos of the system and the area around it
- Any access panels or hatches you can see
- Your last certificate, test record or report
- The roof, plant room or outside wall the system runs to
Want a quote for canopy cleaning? Please call us on 0345 646 2711 or use the quote form with a few details about the site. We’ll explain what we’d do and send a fixed quote before anything is booked.
How it works
A visit follows the same order every time: sheeting and protection first, isolate whatever needs isolating, do the work, clear away and leave you the report. On site, the work takes a few hours for most canopies. Pictures of the system and its access let us plan the work in Old Knebworth before we set off.
- We start by checking the canopy and what’s behind its filters.
- We protect everything below once it has cooled.
- Heavy deposits come off by hand, then the surfaces are degreased.
- Plenum, housing, troughs and canopy are all cleaned and checked.
- You get pictures of the result and a recommended date for the next clean.
Preparing for the visit
- Dig out any earlier paperwork for the system
- Arrange a key holder or contact on site
- Tell us about site rules, permits or sign-in
How to get a quote
Getting a quote does not take long. Call or email with a few details and you’ll normally have a fixed price within one working day. If we need to see the system first, we book a survey around your hours.
Related advice
Why it’s worth doing now in Old Knebworth
Drips from a dirty canopy land on the cooking line. It’s a food hygiene concern as much as a fire concern, and environmental health officers look at the cleanliness of equipment, extraction included. A planned visit to Old Knebworth is easier to arrange than an emergency callout.
Several systems or sites on one quote often makes better use of the time. Mention every system or site you need covered and we’ll price it together.
Why us?
- We diagnose before we treat
- Accredited under CHAS and SafeContractor, with ISO 9001
- BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- Ventilation hygiene specialists since 2009
Honest limits
In fairness, there are a few things this work won’t fix:
- A canopy too small for the cooking under it (that’s a design question)
- Weak extraction caused by a failing fan motor
- Ductwork and fans beyond the canopy (those need a full TR19 clean)
If you are not sure, just call us on 0345 646 2711 or use the quote form and we’ll give you a straight answer.
What we work on in Old Knebworth
- Baffle filters
- Grease gutters
- Plenum chambers
- Canopy light fittings
- Wall canopies
- Island canopies
Different parts, different methods
Wall canopies
A long wall canopy may hold several sections of filters. We work along the canopy section by section, with photos for each.
Plenums and filter housings
Filter housings hold the filters in place, and their channels fill with grease. Clean housings let the filters seat properly and leave no gaps.