Hertfordshire · Canopy and hood cleaning
Colney Heath canopy cleaning
Canopy cleaning for Colney Heath and the surrounding area: a survey, a fixed price, careful work and proper paperwork. Ask us for a fixed quote.
- Condensation running down the canopy
- Poor capture at the hood
- Filters that never seem to stay clean
Part by part
Island canopies
An island canopy is open on all sides, so every face can collect grease. We clean all of them, inside and out.
Plenums and filter housings
The plenum is the space behind the filters where air gathers before entering the duct. Grease that slips past the filters settles there, so it’s scraped and degreased on every canopy clean.
How we handle canopy cleaning in Colney Heath
The canopy is the part of the extract everyone in the kitchen sees. It’s also the first place cooking vapour meets, so grease gathers on its inner skin, seams and gutters. We clean it inside and out, along with the plenum and filter housing behind it. Common call-outs are for a sticky, discoloured canopy and a greasy hood noticed by an inspector, on wall canopies, island canopies and grease gutters.
In a small place like Colney Heath, kitchens are often in older or extended buildings, with long single-storey duct runs, and those horizontal sections are where grease settles. We agree access and timings in advance.
Every visit ends with a written report and photos, so you have a record of what was done and when. Where the work is a TR19® Grease clean, the certificate is issued through the BESCA Vent Hygiene Elite portal.
- Place
- Colney Heath (AL4)
- Region
- Hertfordshire
- Reporting
- TR19® certificate and photo report
- Quotes
- Fixed quote, normally within a working day
- When we work
- Nights, weekends or holidays to suit you
- Telephone
- 0345 646 2711
- Updated
- 30 October 2026
Landlords, agents and facilities managers
If you look after several sites, we can schedule visits across all of them on one quote. Each site gets its own report and pictures, so records stay tidy.
Facilities teams in offices, schools and healthcare sites book us too across Hertfordshire. Larger estates can be phased building by building around the people who use them.
Staff cleaning versus specialist work
Logging matters as much as cleaning. A dated log of in-house cleaning and checks helps show that the system is managed between specialist visits, alongside our reports.
Away from the kitchen, the in-house job is mainly checking: clear grilles, a log of filter changes and reporting anything odd. The inside of ducts and units needs a specialist.
Your questions about canopy cleaning in Colney Heath
Do you do school kitchen extract cleaning in Colney Heath in the summer holidays?
Yes, holiday work suits schools best. Around Colney Heath, the Food Standards Agency lists about 5 schools and colleges with registered kitchens within a mile and a half or so. You can call us on 0345 646 2711, or email photos with the dates the site is empty.
Which environmental health team covers Colney Heath?
That is St Albans City council, whose environmental health officers carry out food hygiene inspections in Colney Heath. It helps to keep the extract cleaning records with your food safety paperwork, so they’re ready if asked for.
What kinds of canopies do you clean?
Most commercial kitchen canopies, from one small hood to a long run of canopies. The survey tells us how best to clean yours, from pictures or a visit.
Which sectors do you work in?
Restaurants and pubs, hotels, schools and colleges, hospitals and care homes, offices and retail, as well as food production and leisure sites.
What do you do to protect the area?
By covering it before any work starts. The work is kept contained and leave the area clean.
Are you accredited?
We’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we carry full insurance.
Is the inside of the hood cleaned?
We clean the canopy inside and out, including the seams, troughs and gutters. With the filters out, the plenum and housing are cleaned as well.
Do we need to close while you work?
Not typically. We work when the area is out of use, such as evenings, overnight, early mornings or weekends, so you keep your normal hours.
Between visits
Once we’ve finished, these simple steps help:
- Use non-abrasive cloths on the hood
- Check and empty canopy gutters regularly
- Give the canopy a wipe after service
- Flag any change in how the canopy behaves
A before and after photo report follows the clean. The report lists what was cleaned and any part we couldn’t get to, so the record is honest and complete.
Tell us if the canopy starts dripping or the filters clog sooner than usual. More drips or quicker clogging often mean the cleaning interval needs looking at, which a grease thickness test can confirm.
How the visit works
A visit follows the same order every time: sheeting and protection first, make the system safe, do the work, clear away and leave you the report. The visit itself takes a few hours for most canopies. We agree a date with you, plan the drive to Colney Heath and turn up when the site is quiet.
- We look at the canopy first, from photos or on a visit.
- Equipment below is switched off and left to cool, then sheeted.
- We remove the grease filters and clean the plenum and filter housing.
- The canopy is cleaned inside and out, including troughs and seams.
- We refit the filters, clear up and photograph the finished canopy.
Before we arrive
- Clear the space around the work
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
- Mention any sign-in, permit or induction we need
Ask for a quote
Every quote begins with a look at the system, from your pictures and details or, where that is not enough, a survey on site. Then we send a fixed price, before any work starts.
Related advice
Leave it or put it right?
Leaving the canopy until the next full clean can mean months of build-up. In a busy kitchen, the canopy and plenum can need attention between TR19 cleans, and readings or a look behind the filters will show it. Rural sites can’t always move to another kitchen or room when something fails.
Whatever the type of site, the quote works the same way: how much there is, how we reach it, what state it’s in and when we can work. Call for a fixed quote and we will explain each part.
Why choose Duct Doctor in Colney Heath
- In business since 2009
- We diagnose before we treat
- Photo reports with every job
- We are fully insured
See how cleaning jobs are priced or our accreditations and certificates.
Canopy cleaning around Colney Heath
The FSA’s data shows about 7 pubs and bars registered within roughly a mile and a half of the centre of Colney Heath. Where they serve hot food, their kitchen extracts need cleaning to TR19® like any restaurant’s. Colney Heath sits within the area of 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. Environmental health officers from St Albans City council inspect food businesses in Colney Heath. The cleanliness of the kitchen and its equipment, extraction included, is part of what they check. Keeping each certificate and photo report on file helps show the extract is looked after.
Bursars and site managers at schools such as Colney Heath Junior Mixed Infant and Nursery School tend to book extract cleaning for when the kitchen is empty. Historic houses near Colney Heath, such as Hatfield House about 2.3 miles north-east, are a reminder that older buildings with event kitchens can have long, awkward duct routes.
Colney Heath is about 2 miles south-west of Hatfield, in Hertfordshire. Anywhere in AL4, we can carry out canopy cleaning at your premises. We cover 381 places across Hertfordshire, from busy centres to quieter spots. London is in our area too, around 18 miles away.
All of AL4 is within our area for canopy cleaning, from the main roads to the quietest streets. You’ll find streets such as High Street, Fair View and Roestock Lane, all of which we cover for canopy cleaning. Nearby, we also carry out canopy cleaning in Sleapshyde (1 mile north-west), Welham Green (1 mile east), Smallford (1 mile north-west), Hatfield (2 miles north-east) and Tyttenhanger (2 miles west). Larger places within reach include Watford (8 miles south-west), Hemel Hempstead (9 miles west), Stevenage (12 miles north), St Albans (3 miles west), Welwyn Garden City (5 miles north-east) and Harpenden (7 miles north-west).
What’s near Colney Heath
Around Colney Heath, our work takes us to kitchens and buildings near Chalkdrawers Arms, Bishop's Hatfield Girls' School and North Mimms Park and the streets around them. The closest station to Colney Heath is Welham Green station, about 1.7 miles east of the centre. A little further out are Hill End Hospital (2.3 miles west) and The Bunker at Hatfield Police Station (1.9 miles north). For a walk, there’s Verulamium Lake and Colney Heath Local Nature Reserve.
What we are called out for in Colney Heath
Because the plenum sits behind the filters, it’s easy to forget. Daily cleaning reaches the canopy face but rarely gets further, leaving the plenum and housing to collect grease between professional cleans.
Signs it’s time to call us include:
- A canopy flagged at an environmental health inspection
- A plenum thick with grease behind the filters
- Canopy gutters full of old fat
- A sticky, discoloured canopy
Volunteers running a hall kitchen near Church of St Mark, or anywhere in Colney Heath, may not know when the extract was last cleaned, and a grease test settles it.
Comparing quotes
- Whether a survey comes first
- Whether VAT is included
- How they set the interval to the next visit
- What records you’ll receive afterwards