Surrey · Canopy and hood cleaning
Canopy and hood cleaning in Ash, Surrey
Canopy cleaning for businesses, landlords and public buildings in Ash. CHAS, SafeContractor and ISO 9001, and fully insured.
- Poor capture at the hood
- Grease dripping from the canopy edge
- A filter housing caked in grease
Canopy cleaning in Ash
Think of the canopy as the mouth of the extract. If it’s coated in grease, everything downstream gets more of it. Our diagnosis starts there, and the cure is a thorough clean of the hood, the plenum and the filter housing. The work covers grease gutters, plenum chambers and island canopies, and common reasons people get in touch are filters that never seem to stay clean and grease channels that no longer drain.
In a smaller place like Ash, the kitchens with extract systems are more likely to be a pub, a café, a takeaway or a school or care home kitchen than a big restaurant. Quieter kitchens still collect grease in the duct, just more slowly, so the interval is set by hours of use and grease readings.
The paperwork matters as much as the work. Each visit is written up with photos, covering the work done, any areas we couldn’t access and a recommended next date. Keep it with your fire safety records so it’s to hand when an insurer or inspector asks.
- Where
- Ash (GU12, GU10)
- Region
- Surrey
- Records
- Certificate plus before-and-after pictures
- Quotes
- A fixed price before we start
- Working hours
- Out of hours as standard, 24/7 emergency line
- Telephone
- 0345 646 2711
- Last updated
- 30 October 2026

In-house cleaning or a specialist?
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. Leave those to us.
Day-to-day cleaning is something your team can do: wiping down canopy surfaces, cleaning filters and keeping a simple log. Inside the ducts, risers and fan is specialist work, which is where we come in.
Common questions in Ash
Who would carry out a food hygiene inspection at a kitchen in Ash?
The local authority for Ash is Guildford council, and its environmental health team does the inspecting. It helps to keep the extract cleaning records with your food safety paperwork, so they’re ready if asked for.
Do you cover smaller places like Ash?
Yes, Ash is part of our area, however small the site. Just mention lanes, gates or anything else about the site when you book.
Can I just have the canopy cleaned instead of the whole system?
Canopy cleaning is part of TR19, not the whole of it. Your report lists exactly what was cleaned so nobody mistakes it for a full system clean.
Which canopies and hoods do you clean?
Wall canopies, island canopies and single hoods over individual appliances. Each one is cleaned inside and out, with the plenum behind the filters.
Will we have to shut during the visit?
Not normally. Out-of-hours visits keep the disruption down. Larger jobs can be phased over several visits so parts stay in use.
How much does canopy cleaning cost in Ash?
There’s no set price, as it depends on the job: how big it is, what state it’s in, how we reach it and the working hours. We fix the price before any work starts.
Are you accredited?
Duct Doctor is a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we are fully insured.
How much notice do you need?
Earlier is better, especially for out-of-hours work. We typically quote within one working day, and there’s a 24/7 line for emergencies.
Also in Ash
How it works
We start by comparing what we find with the survey or your pictures. Anything unexpected is raised with you before we go further. After that, the work takes a few hours for most canopies. Getting to the system matters more than parking in a place like Ash, so let us know how to reach it.
- First the canopy is surveyed, by pictures 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.
- The canopy is cleaned inside and out, including troughs and seams.
- 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
- Tell us about site rules, permits or sign-in
- Make sure equipment near the work can be switched off and left to cool
How to get a quote
Quoting starts with a diagnosis, from your photos and details or, where that isn’t enough, a survey on site. After that, you get a fixed price for the work, before any work starts.
Related advice
Why it’s worth doing now in Ash
Grease on the canopy is sitting just above the heat source. A flare-up can catch it and be drawn into the plenum and duct, where a fire is much harder to stop. A clean canopy takes that fuel away. Even a site near Ash that is only busy part of the week needs its system checked on a schedule.
A single site or a whole portfolio, we price it on the same basis: the work involved, the access and the timing. The price is fixed before we start.
Why book with us
- Every job surveyed first
- Accredited under CHAS and SafeContractor, with ISO 9001
- Photo reports with every job
- Full insurance on every job
Landlords, agents and facilities managers
We work for landlords, managing agents and facilities managers as well as the people running the site. 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.
Running several sites is easier with one contractor. We work across London and the South East, so visits at different addresses can be planned together and kept on a regular cycle.
What we are called out for in Ash
The canopy takes the hottest, wettest air in the kitchen. 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.
Clients normally contact us after spotting one of these:
- Grease filters blocking between washes
- An EHO comment about the canopy
- Condensation running down the canopy
- Poor capture at the hood
If you run catering at a healthcare site, such as a hospital like Guildford Hospital about 4.8 miles east, the extract may need cleaning more often than a part-time kitchen.
What to look for in a quote
- Exactly which parts of the system are covered
- How they set the interval to the next visit
- If they look at the system before pricing
- If the quote is a fixed price or an estimate
What canopy cleaning looks like in Ash
Food Standards Agency records list about 15 restaurants, cafés and works canteens and about 18 takeaways within roughly a mile and a half of the centre of Ash. Where they cook under a hood, the plenum behind the filters is where grease hides. Ash sits within the area of Surrey 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. Food hygiene inspections in Ash are the job of Guildford council’s environmental health team. They look at how clean the premises and equipment are, and the kitchen extract is part of that. Keeping each certificate and photo report on file helps show the extract is looked after.
School kitchens, at schools like Walsh CofE Junior School for example, are typically cleaned in the holidays so no lunches are lost. If you run a church or community hall kitchen, near Church of St Peter or elsewhere in Ash, its extract still collects grease from every lunch and event.
Ash is about 2 miles east of Aldershot, in Surrey. Ash gets the same approach as every site we work on: diagnosis first, a fixed price, out-of-hours working where necessary and a written report with photos. Across Surrey, we cover 395 places, Ash among them. We also work in Guildford, about 6 miles from Ash.
We work across the GU12 and GU10 postcode area for canopy cleaning and the streets around it. Streets in the area include Ash Church Road, Square Field Way and Littlefield Close, all of which we cover for canopy cleaning. Ash sits on or near the A331 and B3206, which makes travel easy for evening and night visits. If your site is just outside Ash, we cover Ash Green (1 mile east), Tongham (1 mile south-west), Ash Vale (1 mile north), Seale (2 miles south) and Aldershot (2 miles west). Larger places within reach include Guildford (6 miles east), Woking (8 miles north-east), Camberley (6 miles north), Farnham (4 miles south-west), Egham (15 miles north-east) and Frimley (5 miles north).
What’s near Ash
We work in commercial kitchens and buildings around Aldershot Park, The Connaught School and The Dover Arms and the streets around them. For rail, the closest station is Ash station, about 0.5 miles north-east of the centre. Nearby you’ll also find Farnham Castle (4 miles south-west) and Ash Museum (less than half a mile north-east). The countryside around Ash includes Rowhill Nature Reserve and Hog's Back.
How the job changes from site to site
Plenums and filter housings
Behind the grease filters is the plenum. Grease that slips past the filters settles there, so it’s scraped and degreased on every canopy clean.
School and staff canteen kitchens
In a school or workplace canteen, the canopy is often the only part of the extract staff ever see. We clean it and the plenum behind the filters, so what’s out of sight is dealt with too.
What affects the cost of canopy cleaning
The price is fixed before any work begins. It takes into account:
- Site rules, permits and inductions
- Where the site is and how we reach it
- A single visit or a regular plan
- Access, including roofs, risers and ceiling voids
Leaving it longer rarely makes the work cheaper. Build-up, wear and faults tend to get worse, not better, and a neglected system can mean more work. If you’re not sure what’s needed, call 0345 646 2711, or email photos for straight advice and a fixed quote.
What we need to know
A few details help us quote accurately. With your enquiry, please include:
- A few general shots of the system
- Problems your staff have spotted
- The roof, plant room or outside wall the system runs to
- The times we could work without disrupting the site
Getting a quote doesn’t take long. Send a few details and pictures, and we typically reply with a fixed quote within one working day. If we need to see the system first, we book a survey around your hours.