Hertfordshire · Canopy and hood cleaning
Canopy and hood cleaning in Knebworth, Hertfordshire
Canopy cleaning for businesses, landlords and public buildings in Knebworth. CHAS, SafeContractor and ISO 9001, and fully insured.
- Smoke hanging around the canopy during service
- Canopy gutters full of old fat
- A canopy flagged at an environmental health inspection
Your questions about canopy cleaning in Knebworth
Which council inspects kitchens in Knebworth?
That is North Hertfordshire council, whose environmental health officers carry out food hygiene inspections in Knebworth. Ratings are published by the Food Standards Agency, so a clean extract and good records are worth keeping up.
Can you get to a site in Knebworth?
Yes, smaller places are covered as well as towns. The journey is planned ahead, so a few details about the route help.
How much does canopy cleaning cost in Knebworth?
There’s no set price, as it depends on the job: the size of the system, its condition, access and when we can work. You get a fixed price before any work starts.
How much notice should we give?
Earlier is better, particularly for night and weekend visits. We usually quote within one working day, and emergencies are covered by our 24/7 line.
Do you clean canopies in all kinds of kitchens?
Single hoods, long wall canopies and island canopies alike. We work out the approach when we survey, from pictures or a visit.
Do you survey before quoting?
Yes. For many sites, photos and a few details are enough, while bigger or harder-to-see systems are surveyed on site.
Is TR19 cleaning required by law?
No. TR19® itself isn’t law; it’s a BESA specification. The law is the Regulatory Reform (Fire Safety) Order 2005, which makes the responsible person assess and reduce fire risk, and TR19® is the benchmark for showing that grease in the extract is under control.
Who is the responsible person?
Under the Regulatory Reform (Fire Safety) Order 2005, it’s 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.
Canopy cleaning for kitchens and businesses in Knebworth
Has the canopy started to drip or look neglected? Send us a photo of the hood and filters when you phone us on 0345 646 2711 or use the quote form, and you’ll get a fixed price, normally within one working day. Typical jobs include poor capture at the hood and wet, greasy drips from the hood, across island canopies, plenum chambers and grease gutters.
Size does not change the work: a kitchen in a place like Knebworth gets the whole system cleaned, canopy to discharge. The visit is booked around your opening hours, and the journey is planned ahead.
Duct Doctor has been trading since 2009, as a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we carry full insurance.
- Location
- Knebworth (SG3)
- Wider area
- Hertfordshire
- Reporting
- TR19® certificate and photo report
- Quotes
- A fixed price before work begins
- Hours
- Nights, weekends or holidays to suit you
- Call
- 0345 646 2711
- Reviewed
- 30 October 2026
When something else is needed
Some problems need a different service or another trade:
- Ductwork and fans beyond the canopy (those need a full TR19 clean)
- Bent or broken filters
- Faulty canopy lights or wiring (a job for an electrician)
If in doubt, call 0345 646 2711, or send details by email and we will say what we think.
What we work on in Knebworth
- Plenum chambers
- Grease gutters
- Wall canopies
- Baffle filters
- Island canopies
- Canopy light fittings
What happens if it’s left?
Grease on the canopy is sitting just above the heat source. Flames from the range can ignite it and be pulled further into the system, where a fire is much harder to stop. Cleaning it removes that fuel. Around Knebworth, a kitchen or building out of action is missed right away.
One small site or a whole estate, we price it on the same basis: the work involved, the access and the timing. You’ll have a fixed price before work begins.
What you get with us
- We diagnose before we treat
- CHAS, SafeContractor and ISO 9001
- A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- Every visit written up, with pictures
Take a look at our cost guide and our accreditations and certificates.
Nearby places to Knebworth
Other services in Knebworth
When to call us in Knebworth
Grease does not build up any differently in Knebworth: it comes down to how long the kitchen cooks and what’s on the menu. Frying and grilling load a canopy far faster than steaming or boiling.
Common reasons sites call us include:
- Overflowing grease troughs and gutters
- Fat running down the front of the hood
- Condensation running down the canopy
- A hood coated in old grease
Healthcare kitchens can’t easily close, so their extracts are cleaned overnight or between meal services; the nearest hospital to Knebworth is Lister Hospital, about 4.2 miles north.
Before booking anyone
- Whether the work can be done while the site is closed
- What insurance they carry
- What’s included in the scope, part by part
- Whether a survey comes first
Aftercare tips
Results last longer with the right care. Here’s what we suggest:
- Check and empty canopy gutters regularly
- Keep every filter in place while cooking
- Leave the extract running until cooking stops
- Clean the hood’s outer surfaces daily
A full system clean comes with a TR19 certificate from the BESCA Vent Hygiene Elite portal. Where only the canopy is done, the report says so clearly.
A daily wipe of the hood keeps fresh grease from baking on. It doesn’t reach the plenum, but it stops the outside building up.
What happens on the day
At the end of the visit, someone from your team can look over the work with us. Anything we couldn’t reach or that needs attention is pointed out there and then, and it goes on the report too. The visit takes a few hours for most canopies. Visits to a place like Knebworth are planned ahead, so we arrive with what the survey says the job needs.
- The canopy is checked from photos or on a visit.
- Once the kitchen has closed, the cooking line is cooled and sheeted.
- We lift out the filters and scrape the plenum and housing.
- Inside and out, the hood and its troughs are cleaned.
- We put the filters back, tidy up and photograph the finished canopy.
Before we arrive
- Move anything stored near the system
- Have your last certificate or report to hand
- Let us know how we reach the system, including roofs, risers and plant rooms
Getting a quote
Getting a quote does not take long. Send a few details and photos, and we normally reply with a fixed quote within one working day. Where a survey is needed, we arrange a time that suits the site.
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For landlords and multi-site operators
Managing agents often deal with us directly. Tell us the site, the work and the access arrangements and we will come back with a fixed quote.
Facilities teams in offices, schools and healthcare sites book us too across Hertfordshire. Larger estates can be phased building by building to keep disruption down.
What canopy cleaning looks like in Knebworth
Food Standards Agency records include about 14 pubs, bars and clubs in and around Knebworth, up to about a mile and a half out. Where they serve hot food, their kitchen extracts need cleaning to TR19® like any restaurant’s. It’s North Hertfordshire council that sends environmental health officers to food businesses in Knebworth. 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. Hertfordshire Fire and Rescue Service covers Knebworth. The Fire Safety Order puts the duty on whoever runs a kitchen to control its fire risk, and a greasy duct is fuel.
Term dates shape school work: for a school like Knebworth Primary and Nursery School, an extract clean fits neatly into a half-term or summer break. If you cook for passing trade around Knebworth station, the extract can be cleaned between your last and first customer.
Knebworth is about 3 miles south of Stevenage, in Hertfordshire. Every kind of commercial site in Knebworth, canopy cleaning is something we can help with. We can work out of hours so trading is not interrupted. Across Hertfordshire, we cover 381 places, and Knebworth is one of them. London is in our area too, about 26 miles from Knebworth.
Postcode districts we cover here for canopy cleaning: SG3. Streets in the area include London Road, Deanscroft and Lytton Fields, and we cover them all for canopy cleaning. We also cover the places around Knebworth: Woolmer Green (1 mile south), Bragbury End (1 mile north-east), Oaklands (2 miles south), Datchworth (2 miles south-east) and Shephall (2 miles north). Larger places within reach include Hemel Hempstead (14 miles south-west), Stevenage (3 miles north), St Albans (10 miles south-west), Bishop's Stortford (15 miles east), Welwyn Garden City (5 miles south) and Harpenden (8 miles south-west).
Around Knebworth
In Knebworth, that means kitchens and buildings near Barnwell School and Knebworth Park, among other places. Knebworth has its own railway station: Knebworth station. Nearby you will also find Benington Castle (3.6 miles north-east) and Datchworth Museum (1.7 miles south-east). Not far away are Mardley Heath.
In-house cleaning or a specialist?
For ventilation and air handling systems, in-house care is mostly about checks: keeping grilles clear, noting unusual noise or smells and logging filter changes. Cleaning inside ducts and units is specialist work.
Staff cleaning doesn’t replace a specialist visit; it supports it. Clean filters and tidy surfaces slow the build-up, but the parts you cannot see still need a specialist at the right interval.