Hertfordshire · Canopy and hood cleaning
North Mymms canopy cleaning
Our technicians work in North Mymms on deep cleaning of kitchen canopies, hoods, plenums and grease filters, inside and out. Out-of-hours visits, a fixed quote and a written report with pictures on every job.
- A filter housing caked in grease
- Condensation running down the canopy
- Grease channels that no longer drain
What happens on the day
We’re used to working while the site is closed. Evenings, nights and weekends are when much of our work happens, so a kitchen or building can carry on as usual the next day. The visit itself takes a few hours, depending on the size of the canopy and how much grease has built up. We agree a date with you, plan the drive to North Mymms and turn up when the site is quiet.
- Diagnosis first: we look behind the filters as well as at the hood.
- We protect everything below once it has cooled.
- Thick grease is scraped away before the canopy is degreased.
- We finish the plenum, troughs and canopy and check them over.
- You get photos of the result and a recommended date for the next clean.
How to prepare
- Mention any locked doors, roof access or ceiling voids
- Mention any parking or loading restrictions
- Move anything stored near the system
Ask for a quote
Here’s what helps us quote: where the site is, what it is and its opening hours, pictures of the system and any previous report or certificate. Once you have those, call us on 0345 646 2711 or send us an email.
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Canopy cleaning for kitchens and businesses in North Mymms
We clean canopies in North Mymms when the kitchen is not cooking: evenings, overnight, early mornings or weekends. Cooking equipment is turned off and cooled, then covered, and the kitchen is left ready for the next service. If you are dealing with a canopy flagged at an environmental health inspection and smoke hanging around the canopy during service, we can put it right.
Somewhere as small as North Mymms, 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, whatever the size of the place.
Good records are part of the job. Each visit is written up with photos, covering the work done, any areas we couldn’t access and a recommended next date. File it in your maintenance log so it’s ready for an insurer, fire officer or EHO.
- Location
- North Mymms (AL9)
- Wider area
- Hertfordshire
- Reporting
- Certificate plus before-and-after pictures
- Quotes
- Fixed quote, usually within a working day
- Working hours
- Nights, weekends or holidays to suit you
- Call
- 0345 646 2711
- Checked
- 30 October 2026
Leave it or put it right?
For a kitchen in North Mymms, a canopy that looks greasy can colour a whole inspection. A clean hood is a sign the kitchen is cared for and keeping it that way is easier than catching up. Rural sites cannot always move to another kitchen or room when something fails.
No two sites are the same, so we price each one individually. The size of the job, how we reach it, its condition and the working hours all make a difference.
Why choose Duct Doctor in North Mymms
- We’re fully insured
- CHAS and SafeContractor accredited, with ISO 9001
- Every job surveyed first
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
See how cleaning jobs are priced or our accreditations and certificates.
Do you need canopy cleaning in North Mymms?
A canopy in North Mymms picks up grease at much the same rate as one anywhere else with the same cooking: it comes down to how long the kitchen cooks and what’s on the menu. High-heat cooking coats it fastest.
Common reasons sites call us are:
- Filters that clog soon after cleaning
- Smoke hanging around the canopy during service
- Grease dripping from the canopy edge
- Greasy streaks across the canopy
For kitchens close to Brookmans Park station, where the day often starts early and ends late, the extract can be cleaned overnight.
Comparing quotes
- Whether the whole system is included, or only the parts that are easy to reach
- Whether they’re fully insured
- Whether the quote is based on a survey or pictures
- What records you’ll receive afterwards
North Mymms: your questions answered
Will you come out to North Mymms?
Yes, North Mymms is part of our area, however small the site. Just mention lanes, gates or anything else about the site when you book.
Do you clean school canteen extracts around North Mymms out of term?
Yes. Half-terms and the summer break are the natural time for school work. Around North Mymms, the Food Standards Agency lists about 3 schools and colleges with registered kitchens within a mile and a half or so. Tell us your holiday dates and we’ll book the visit for when the site is empty.
Which sectors do you work in?
Commercial premises of every kind: kitchens, offices, schools, healthcare, retail, leisure and food production. We fit the work around how the site operates.
What happens to the filters during the clean?
Filters are removed so we can clean the plenum and housing, then cleaned and refitted. Between cleans, a filter exchange service can keep them in good order.
Is the inside of the hood cleaned?
Everything from the outer face to the plenum behind the filters. Grease troughs and filter channels are emptied and degreased as part of the job.
What causes grease to drip from the hood?
A full trough, gaps around the filters or a coated plenum. We clean the canopy, plenum and troughs and tell you what we find.
Does the law say we must follow TR19?
No. The law sets the duty, and TR19® is the recognised benchmark for meeting it. Under the Regulatory Reform (Fire Safety) Order 2005, the responsible person has to manage fire risk, and without records, many insurers may refuse or reduce a claim.
Which canopies and hoods do you clean?
We clean canopies in commercial kitchens of every kind. Whatever is cooked under it, the canopy is cleaned the same thorough way, with the equipment off and cool.
Looking after it afterwards
Good habits slow the build-up between visits. A few tips:
- Wipe the canopy down at close every day
- Use non-abrasive cloths on the hood
- Keep every filter in place while cooking
- Make sure filters sit tight in the housing
Where the canopy is cleaned as part of a full TR19® Grease clean, a TR19 certificate is issued through the BESCA Vent Hygiene Elite portal. If the job covers only the canopy, the paperwork reflects that.
Don’t let canopy gutters fill to the brim. Most canopy drips start with a full trough, so make emptying them part of the closing routine.
When it’s something else
Some problems need a different service or another trade:
- Bent or broken filters
- Electrical faults in the canopy
- A canopy undersized for the equipment
Not sure which it is? You can give us a ring on 0345 646 2711, or send details by email and we’ll tell you honestly.
What we work on in North Mymms
- Baffle filters
- Island canopies
- Canopy light fittings
- Plenum chambers
- Wall canopies
- Grease gutters
Canopy cleaning in North Mymms: the local picture
The FSA’s food hygiene register includes about 4 bars, pubs and nightclubs across North Mymms and its immediate surroundings (about a mile and a half). Where they serve hot food, their kitchen extracts need cleaning to TR19® like any restaurant’s. The fire and rescue service for North Mymms 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. It’s Welwyn Hatfield council that sends environmental health officers to food businesses in North Mymms. 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.
Where a hall near Church of St Mary the Virgin, or anywhere in North Mymms, hosts lunch clubs or events, its extract gathers grease just as a café’s does. Kitchens that cook twelve hours or more a day, as some healthcare kitchens do, fall into BESA’s three-monthly minimum; Shenley Hospital is the nearest hospital to North Mymms, about 3.5 miles south-west.
North Mymms is about 2 miles north-west of Potters Bar, in Hertfordshire. For canopy cleaning in and around North Mymms, please give us a ring on 0345 646 2711 or drop us a line for a fixed quote. Our area covers London and the South East, North Mymms included. North Mymms is one of 381 places in Hertfordshire we cover for canopy cleaning. Our London page covers sites nearby, about 16 miles away.
Every address in AL9 is within our area for canopy cleaning, from the main roads to the quietest streets. Canopy cleaning is available to premises on St Mary's Church Road, Abdale Lane and Warrengate Road and nearby roads. We also cover the places around North Mymms: Welham Green (1 mile north), Colney Heath (2 miles north-west), Sleapshyde (3 miles north-west), Hatfield (3 miles north) and Shenleybury (3 miles west). Further out, we also cover Watford (9 miles south-west), Hemel Hempstead (11 miles west), Stevenage (13 miles north), St Albans (5 miles north-west), Welwyn Garden City (6 miles north) and Harpenden (9 miles north-west).
Near you in North Mymms
We work in commercial kitchens and buildings around Chancellor's School, North Mimms Park and The Old Maypole Public House, among other places. The closest station to North Mymms is Brookmans Park station, roughly 0.7 miles east. Well-known places in the area include Shenley Hospital (3.5 miles south-west) and Potters Bar Museum (2 miles south-east). Green spaces nearby include Furzefield Wood and Lower Halfpenny.
What affects the cost of canopy cleaning
Sites vary more than people expect. What affects the quote:
- The scale of the work
- Where the site is and how we reach it
- Working hours and out-of-hours timing
- How easy every part is to reach
What you pay depends on the size of the system, what state it’s in and how easy it is to reach. We give you a fixed price before we start, so you know where you stand.
Helping us quote
When you contact us, it’s useful to have:
- The site address and the type of premises
- How we’d reach plant on a roof or in a plant room
- When the site is open and when it’s quiet
- Any symptoms, from odd noises to smells or leaks
Want a quote for canopy cleaning? Please ring 0345 646 2711, or send details by email with a few details about the site. We will explain what we’d do and send a fixed quote before you commit to anything.
Places near North Mymms
Other services in North Mymms
In-house cleaning or a specialist?
Keep a record of what your team does. A simple log of filter washes, wipe-downs and checks helps show that the system is managed between specialist visits, next to our reports.
Staff cleaning and specialist work aren’t the same thing. Wiping filters daily and washing them weekly keeps the visible parts in order, but they don’t reach the grease that builds up further in. That part needs specialist access and equipment.