West Sussex · Canopy and hood cleaning
Canopy Cleaning in Whitehall
Our technicians work in Whitehall on canopy and hood cleaning. Fixed quotes, work around your opening hours and photo reports on every job.
- Grease filters blocking between washes
- Wet, greasy drips from the hood
- Heavy deposits behind the grease filters
Canopy cleaning in Whitehall, done properly
Think of the canopy as the mouth of the extract. If it’s coated in grease, everything downstream gets more of it. We start the check-up there, and the treatment is a thorough degrease of the hood, plenum and housing. If you have filters that clog soon after cleaning and grease dripping from the canopy edge, we can help.
Rural kitchens often have long, low duct runs through a roof space or along an outside wall, and those horizontal sections are where grease settles. We agree access and timings in advance.
The sign-off is always in writing: a dated report with pictures of the work, plus a certificate through the BESCA Vent Hygiene Elite portal when the work is a TR19® Grease clean. Any parts we couldn’t reach are recorded on it too.
- Location
- Whitehall (RH13)
- Region
- West Sussex
- Records
- Certificate and photo report
- Price
- Fixed quote, normally within a working day
- When we work
- Out of hours as standard, 24/7 emergency line
- Phone
- 0345 646 2711
- Last updated
- 30 October 2026
How the job changes from site to site
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. It catches whatever gets past the filters, and it’s cleaned every time we clean the canopy.
How we price canopy cleaning
We do not publish a price list, because no two systems are the same. The quote depends on:
- The scale of the work
- Whether it’s a one-off visit or part of a schedule
- When the work can happen, such as evenings, overnight or weekends
- Whether several sites go on one quote
Leaving it longer rarely makes the work cheaper. Build-up, wear and faults tend to get worse, not better, which can make the next visit longer. If you are unsure, call us on 0345 646 2711 or drop us a line for straight advice and a fixed quote.
What to send for a quote
Photos and a few facts are often enough to price the work. Useful things to send:
- Any symptoms, from odd noises to smells or leaks
- The times we could work without disrupting the site
- The roof, plant room or outside wall the system runs to
- Wide photos of the system and the area around it
Getting a quote doesn’t take long. Send a few details and pictures, and we usually reply with a fixed quote within one working day. If we need to see the system first, we book a survey around your hours.
The process
Night work is normal for us. A lot of visits happen overnight or at weekends, 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. Visits to a village like Whitehall are booked in advance, at a time that suits whoever runs the site.
- We start by checking the canopy and what’s behind its filters.
- We protect everything below once it has cooled.
- Heavy deposits come off by hand, then the surfaces are degreased.
- Plenum, housing, troughs and canopy are all cleaned and checked.
- You get pictures of the result and a recommended date for the next clean.
Before we arrive
- Mention any locked doors, roof access or ceiling voids
- Dig out any earlier paperwork for the system
- Tell us the best time to work, such as after service or at a weekend
Get a fixed quote
Quoting starts with a diagnosis, from your photos and details or, where that is not enough, a survey on site. Then we send a fixed price so you know the cost before work begins.
Related advice
Signs you need canopy cleaning in Whitehall
Filters that are missing, damaged or badly seated leave gaps. More grease reaches the plenum and housing than they’re designed to take, which shows up as heavy deposits when the filters come out.
Most sites get in touch when they notice one of these:
- A sticky, discoloured canopy
- Filters that clog soon after cleaning
- A plenum thick with grease behind the filters
- Fat running down the front of the hood
Church and community hall kitchens, near The Church of St Mary the Virgin or anywhere around Whitehall, are easy to forget, but their extracts collect grease like any other.
What to look for in a quote
- What records you will receive afterwards
- Whether they recommend a next date
- Whether the figure could change on the day
- Whether the whole system is included, or only the parts that are easy to reach
What happens if it’s left?
Fresh grease comes off far more easily than old. Heat from the range bakes canopy grease into a hard, dark layer, so the longer it’s left, the longer the clean takes. Rural sites can’t always move to another kitchen or room when something fails.
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 work begins, so you know where you stand.
Why choose Duct Doctor in Whitehall
- Full insurance on every job
- In business since 2009
- Survey first, then a fixed quote
- Work around your opening hours, with 24/7 emergency cover
In-house cleaning or a specialist?
A few tasks are always specialist work: entering ducts, working on fans, testing dampers and taking grease readings need training, the right equipment and safe access. That is our job.
Staff cleaning and specialist work are not the same thing. A daily filter wipe and a weekly filter wash keep grease down at the front of the system, but grease that has passed the filters is out of reach. Reaching it takes a specialist with the right equipment.
Whitehall kitchens: local notes
Food Standards Agency records include about 3 pubs and bars within about 1.5 miles of central Whitehall. Breakfasts, bar meals and functions all put grease into the extract wherever they’re cooked. West Sussex Fire and Rescue Service covers Whitehall. Grease in a kitchen extract is a recognised fire risk, and the fire authority enforces the law on managing it in most commercial premises. It’s Horsham council that sends environmental health officers to food businesses in Whitehall. The cleanliness of the kitchen and its equipment, extraction included, is part of what they check. Our report lists what was cleaned and when, which is useful to have ready.
If you look after a school kitchen, at a school such as Shipley CofE Primary School or anywhere near Whitehall, the holidays are the usual time for a TR19® clean.
Whitehall is about 6 miles south-west of Horsham, in West Sussex. For canopy cleaning in and around Whitehall, please call 0345 646 2711 or email us for a fixed quote. Our area covers London and the South East, Whitehall included. Whitehall is one of 371 places in West Sussex where we work for canopy cleaning. For sites nearby, see our Brighton page (15 miles or so).
Every address in RH13 is within our area for canopy cleaning, from busy streets to back roads. If your site is just outside Whitehall, we cover Shipley (1 mile north-east), Broomer's Corner (1 mile west), Dragons Green (1 mile north), Dial Post (2 miles south-east) and West Grinstead (2 miles east). We also work in nearby towns such as Crawley (12 miles north-east), Horsham (6 miles north-east), Worthing (11 miles south), Haywards Heath (12 miles east), Burgess Hill (11 miles east) and Littlehampton (13 miles south-west).
Landmarks near Whitehall
The closest station to Whitehall is Billingshurst station, about 3.8 miles north-west. Not far away are Knepp Wildland.
Looking after it afterwards
To keep the system working properly between visits:
- Leave the extract running until cooking stops
- Keep every filter in place while cooking
- Check filters aren’t leaving gaps
- Wash or exchange the filters on a regular cycle
After the clean you get a photo report showing the canopy, plenum and housing before and after. The report lists what was cleaned and any part we couldn’t get to, so the record is honest and complete.
A change in how the canopy behaves is worth reporting. It can mean the cooking has changed or the interval is too long, which a grease thickness test can confirm.
FAQs for Whitehall
Which environmental health team covers Whitehall?
The local authority for Whitehall is Horsham council, and its environmental health team does the inspecting. How often a business is inspected depends on the risk rating the council gives it, so it’s worth staying ready all year.
Do you work in villages like Whitehall?
Yes, Whitehall is part of our area, however small the site. A survey first, from pictures or a visit, means we arrive with the right kit.
Can you clean the canopy outside our opening hours?
We clean when the kitchen is closed: evenings, overnight, early mornings or weekends. The range must be switched off and cooled first.
Can you come out in an emergency?
Yes. If something urgent happens, like a fan failing or damage after a fire, call our 24/7 line, and we will advise on what to do next.
Are the filters cleaned too?
We remove the filters to reach the plenum, and they’re cleaned before going back in. Any that are damaged are noted on the report.
Is the inside of the hood cleaned?
Inside and out, including the seams, troughs and gutters. The plenum and filter housing behind the filters are cleaned too.
How do you protect the area?
By covering it before any work starts. The work is kept contained and clean down when we finish.
How much does canopy cleaning cost in Whitehall?
Size, condition, access and working hours all affect the cost. Call for a fixed quote, typically ready within one working day.