Hertfordshire · Canopy and hood cleaning
Canopy Cleaning in Clothall
Canopy cleaning in Clothall from ventilation hygiene specialists trading since 2009. Evenings, overnight and weekends, plus a 24/7 emergency line.
- A canopy flagged at an environmental health inspection
- Fat running down the front of the hood
- Condensation and grease dripping together
About our canopy cleaning in Clothall
The canopy is where the extract system breathes in. A dirty canopy passes more grease further into the system. Our diagnosis starts there, and the cure is a thorough clean of the hood, the plenum and the filter housing. If you have drips from the canopy onto the range and condensation running down the canopy, we can put it right.
In a small place like Clothall, kitchens are often in older or extended buildings, with long single-storey duct runs, and those horizontal sections are where grease settles. Access, parking and timings are agreed before the day.
The paperwork matters as much as the work. You get a written report with photos after every visit, listing what was done, anything we couldn’t reach and when the next visit is due. Keep it with your fire safety records so it’s ready for an insurer, fire officer or EHO.
- Place
- Clothall (SG7)
- Region
- Hertfordshire
- Records
- Certificate and photo report
- Price
- Fixed quote, normally within a working day
- Hours
- Overnight and weekend work, 24/7 emergency callout
- Telephone
- 0345 646 2711
- Checked
- 30 October 2026

How the job changes from site to site
Plenums and filter housings
Behind neglected filters, the plenum can be heavily coated. Heavy deposits are scraped out by hand before degreasing.
Island canopies
With filters on more than one side, an island canopy has more plenum to clean. Both sides are taken apart and cleaned.
What we do, step by step
The first job on site is protection: sheeting goes over floors and surfaces close to the work. After that, the system is made safe and the work begins. The work on site takes part of a shift for most kitchens, more where there are several canopies or heavy deposits, and the area is cleaned down before we leave. If you can send pictures, we can arrive in Clothall knowing what to expect.
- First the canopy is surveyed, by photos or in person.
- Equipment below is switched off and left to cool, then sheeted.
- Filters come out and the plenum behind them is scraped and degreased.
- Inside and out, the canopy and its grease channels are degreased.
- Filters go back, the area is cleaned down and pictures are taken.
Before we arrive
- Make sure someone can let us in and lock up afterwards
- Let us know about parking and loading
- Let us know when the site is closed or quiet
Get a fixed quote
To help us quote: where the site is, what it is and its opening hours, a few pictures and any previous report or certificate. Then call 0345 646 2711 or send us an email.
Advice
What canopy cleaning can’t fix
Some problems need a different service or another trade:
- Grease filters too damaged to refit (they need replacing)
- Weak extraction caused by a failing fan motor
- A canopy undersized for the equipment
Not sure which it is? You can call 0345 646 2711 or drop us a line and we will tell you honestly.
What we work on in Clothall
- Canopy light fittings
- Grease gutters
- Island canopies
- Baffle filters
- Wall canopies
- Plenum chambers
FAQs for Clothall
Which fire service covers Clothall?
Fire safety enforcement in Clothall is handled by Hertfordshire Fire and Rescue Service. If a fire safety officer visits a commercial kitchen, they may ask about the fire risk assessment and how the extract is kept clean.
Will you come out to Clothall?
Yes, Clothall is part of our area, however small the site. Photos of the system and directions to the site help us plan the visit.
How long is a canopy clean?
Allow a few hours for most canopies. We’ll confirm how long when we quote.
Can you come out in an emergency?
Yes. Our emergency line runs 24/7, for problems that cannot wait. Call us any time and explain what’s happened.
What happens to the filters during the clean?
We remove the filters to reach the plenum, then clean and refit them. Any that are damaged are noted on the report.
Is TR19 cleaning required by law?
No. The law sets the duty; TR19® is the benchmark used to show it’s met. Under the Fire Safety Order 2005, the responsible person must reduce fire risk, and without records, many insurers may refuse or reduce a claim.
How far ahead should we book?
It depends on the time you need and how big the job is. Tell us your preferred dates when you ask for a quote, and for anything urgent, ring our 24/7 emergency line.
Do you look at the system first?
Yes, always. Diagnosis comes before treatment: the survey shows what needs doing and what access we need and the fixed quote is built on it.
Nearby places to Clothall
More services for Clothall
Looking after it afterwards
After the visit, a few habits help the work last:
- Check and empty canopy gutters regularly
- Clean the hood’s outer surfaces daily
- Check all filters are fitted before service
- Check filters are not leaving gaps
File the report alongside your fire risk assessment where an inspector can see it. Photos of a clean canopy and plenum make the record easy to follow.
The best thing a kitchen can do for its canopy is keep the filters clean. Keep them on a regular cleaning or exchange cycle, and make sure they’re all in place before cooking. The plenum behind them stays cleaner.
Grease, kitchens and Clothall
There are about 3 restaurants, cafés and works canteens across Clothall and its immediate surroundings (about a mile and a half), according to the Food Standards Agency’s register. Wherever there’s a canopy over the cooking, its hood and plenum collect grease with every service. Clothall 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. It’s North Hertfordshire council that sends environmental health officers to food businesses in Clothall. The cleanliness of the kitchen and its equipment, extraction included, is part of what they check. A TR19® certificate and photo report after each clean gives you a record to show an inspector.
School kitchens, at schools like Weston Primary School for example, are typically cleaned in the holidays so no lunches are lost. Where a hall near Church of St Mary, or anywhere in Clothall, hosts lunch clubs or events, its extract gathers grease just as a café’s does.
Clothall is about 3 miles east of Letchworth, in Hertfordshire. Whether your site is in the middle of Clothall or further out, we cover canopy cleaning for every kind of premises, from small sites to large estates. 381 places in Hertfordshire are on our list, from busy centres to quieter spots. Milton Keynes is in our area too, around 27 miles away.
Every address in SG7 is within our area for canopy cleaning, from busy streets to back roads. If your site is just outside Clothall, we cover Weston (1 mile south-west), Wallington (2 miles north-east), Baldock (2 miles north-west), St Nicholas (3 miles south) and Rooks Nest (4 miles south-west). Larger places within reach include Stevenage (4 miles south), Bishop's Stortford (15 miles south-east), Welwyn Garden City (12 miles south), Harpenden (14 miles south-west), Hitchin (5 miles west) and Hatfield (15 miles south).
Near you in Clothall
Around Clothall, our work takes us to kitchens and buildings near The Knights Templar School and the streets around them. Clothall’s nearest station is Baldock station, roughly 2.2 miles north-west. Other landmarks nearby include First Garden City Heritage Museum (3.1 miles west) and Clothall Castle (under half a mile south-east). Open spaces near Clothall include Pryor's Wood.
For landlords and multi-site operators
Landlords, managing agents and facilities managers book us, not only the businesses that use the systems. Where a system serves more than one tenant, such as a shared riser, it helps to agree who arranges the work, and we can quote for the whole system.
Whether it’s one building or many, you get the same standard: diagnosis, a fixed price, work booked around your hours and a written report with pictures.
Signs you need canopy cleaning in Clothall
Air straight off the range hits the canopy first. Fat in that air settles on the inside of the hood, in its seams and on the filters, and the plenum behind them collects the rest.
These are the problems we see most often:
- Fat running down the front of the hood
- A greasy hood noticed by an inspector
- Greasy streaks across the canopy
- Canopy gutters full of old fat
Kitchens that cook twelve hours or more a day, as some healthcare kitchens do, fall into BESA’s three-monthly minimum; Lister Hospital is the nearest hospital to Clothall, about 4.1 miles south-west.
Questions to ask before booking
- Whether they’re fully insured
- Whether a written report and photos are included
- Whether the figure could change on the day
- Whether a survey comes first
What affects the quote in Clothall
Your quote is based on your site. We take into account:
- How easy every part is to reach
- Whether several sites go on one quote
- Site rules, permits and inductions
- A single visit or a regular plan
The price reflects the work, not guesswork. That’s why we survey first, from pictures or on site, and the price is agreed before work begins.
Helping us quote
What to send for a quote:
- Photos showing the whole system and its surroundings
- Anything you’ve noticed, such as smells, noise, drips or poor airflow
- The postcode and the type of business
- The times we could work without disrupting the site
Quoting starts with a diagnosis, from your photos and details or, where that is not enough, a survey on site. After that, you get a fixed price for the work so you know the cost before we start.