Hampshire · Canopy and hood cleaning
Alverstoke canopy cleaning
Canopy cleaning for Alverstoke, from a team that has been trading since 2009. Out-of-hours visits and 24/7 emergency callout.
- A sticky, discoloured canopy
- An EHO comment about the canopy
- Filters that clog soon after cleaning
The process
Before we leave, we walk the area with whoever is on site. We point out anything that couldn’t be reached or needs a follow-up, and the same goes into the written report. The visit takes a few hours, depending on the size of the canopy and how much grease has built up. Seeing the system in pictures first means the trip to Alverstoke can be planned properly.
- We start by checking the canopy and what’s behind its filters.
- Equipment is turned off and cooled, and the area under the canopy is protected.
- Thick grease is scraped away before the canopy is degreased.
- Plenum, housing, troughs and canopy are all cleaned and checked.
- The canopy is signed off with before and after photos and a next clean date.
Preparing for the visit
- Name a contact who can let us in at the agreed time
- Allow time for equipment near the work to be turned off and cool down
- Tell us about site rules, permits or sign-in
Ask for a quote
Want a quote for canopy cleaning? Please phone us on 0345 646 2711 or send us an email and tell us about the site. We’ll talk you through the work and give you a fixed quote before anything is booked.
Advice
Canopy cleaning for kitchens and businesses in Alverstoke
Canopy cleaning is part of every full TR19® Grease clean, but a canopy can also need cleaning on its own, between full system cleans. Where that is the case, we’ll be clear that the ducts and fan are not included, so your records stay accurate. We’re often asked to deal with a plenum thick with grease behind the filters and drips from the canopy onto the range, across island canopies, canopy light fittings and baffle filters.
In a village or hamlet like Alverstoke, the kitchens that need extract cleaning are usually a pub, a school, a care home or a hall kitchen, wherever there is one. Every one of them still needs its extract kept clear of grease, whatever the size of the place.
Our accreditations include CHAS, SafeContractor and ISO 9001, and we are fully insured. On top of that, we are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, trading since 2009.

- Place
- Alverstoke (PO12)
- Wider area
- Hampshire
- Records
- Certificate and photo report
- Price
- A fixed price before work begins
- Working hours
- Evenings, overnight and weekends; 24/7 emergencies
- Telephone
- 0345 646 2711
- Updated
- 30 October 2026
Keeping the system healthy
A little care between visits keeps the system in better shape. Our advice:
- Wipe the canopy down at close every day
- Keep every filter in place while cooking
- Check and empty canopy gutters regularly
- Make sure filters sit tight in the housing
Keep the photo report with your maintenance log, so it’s ready when an EHO, insurer or fire officer asks. Before and after photos speak for themselves.
Don’t let canopy gutters fill to the brim. Overflowing troughs are the usual cause of drips onto the range, so make emptying them part of the closing routine.
Leave it or put it right?
A blocked plenum and clogged filters cut the airflow at the canopy. The kitchen gets hotter and smokier, and the fan works harder for less. A clean canopy and plenum let the extract do its job. It’s worth booking a check, because nobody sees inside a duct day to day.
We do not list prices on the website, because the cost depends on the site in front of us. For a fixed quote, ring 0345 646 2711 or send us an email, and we’ll explain what it covers.
Why choose Duct Doctor in Alverstoke
- Trading since 2009
- A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- Fully insured
- Accredited under CHAS and SafeContractor, with ISO 9001
Take a look at our cost guide and how to check a contractor.
What canopy cleaning can’t fix
In fairness, there are a few things this work will not fix:
- A fan that cannot pull enough air because it’s worn out
- A light fitting that doesn’t work
- Filters that no longer seal in the housing
If in doubt, call 0345 646 2711, or email photos and we’ll say what we think.
What we work on in Alverstoke
- Island canopies
- Grease gutters
- Canopy light fittings
- Plenum chambers
- Baffle filters
- Wall canopies
For landlords and multi-site operators
Landlords, managing agents and facilities managers book us, not only the businesses that use the systems. Shared systems, like a riser serving several units, need a clear agreement on who books the work, and we can quote for the whole system.
Under the Regulatory Reform (Fire Safety) Order 2005, the responsible person must assess and reduce fire risk, and that can be the employer, the owner, a landlord, a facilities manager or a managing agent. Where responsibility is shared, records matter even more.
More services for Alverstoke
Questions from Alverstoke
Do you cover smaller places like Alverstoke?
Yes, smaller places are covered as well as towns. Photos of the system and directions to the site help us plan the visit.
Which fire service covers Alverstoke?
Fire safety enforcement in Alverstoke is handled by Hampshire and Isle of Wight Fire and Rescue Service. Records of extract cleaning are a sensible thing to have ready if a fire safety officer carries out an audit.
How do you keep the site clean during the work?
We start with protection: floor sheeting and covers over nearby surfaces and equipment. We tidy up and take our waste away before we leave.
What should I send you?
Where the site is, what it is and when it’s open, along with a few pictures and any previous report.
Are you insured?
Yes. We’re fully insured, and the details are available on request.
What causes grease to drip from the hood?
A canopy only holds so much grease. Once the troughs and plenum are full, it runs down and drips, often mixed with condensation. A thorough clean stops it.
Where does the waste go?
We take it away when we go. During the work, it’s contained so the area stays clean.
What is TR19?
TR19® is BESA’s specification for ventilation hygiene. TR19® Grease, a standalone specification since 2019, covers grease in kitchen extract systems, while TR19® Air covers other supply and extract ductwork.
Alverstoke kitchens: local notes
Alverstoke lies within about 1 mile of the sea. Near the sea, the fan and discharge at the top of a kitchen extract corrode faster than they would inland. Food Standards Agency records include about 27 pubs and bars and about 3 hotels and B&Bs in and around Alverstoke, up to about a mile and a half out. Wherever they cook, the canopy, duct and fan collect grease just as a restaurant’s do. Kitchens in Alverstoke get their food hygiene inspections from Gosport council. They look at how clean the premises and equipment are, and the kitchen extract is part of that. A dated certificate in the maintenance file answers the question before it’s asked.
For schools such as Alverstoke Community Infant School, kitchen extract cleaning is usually booked for the holidays, when the canteen is closed. Healthcare kitchens cannot easily close, so their extracts are cleaned overnight or between meal services; the nearest hospital to Alverstoke is Gosport War Memorial Hospital, about 0.9 miles north.
Alverstoke is about 2 miles south of Gosport, in Hampshire. If you need canopy cleaning in Alverstoke, it’s easy to get a fixed quote: please call 0345 646 2711 or send us an email. We work across South East England and London, including Alverstoke. We cover 683 places across Hampshire, large and small.
Every address in PO12 is covered for canopy cleaning, from busy streets to back roads. We cover sites on The Lane, Fort Road and Church Road and nearby roads. We also cover the places around Alverstoke: Clayhall (1 mile east), Haslar (1 mile east), Privett (1 mile north-west), Portsmouth Point (2 miles north-east) and Portsea (2 miles north-east). We also work in nearby towns such as Havant (9 miles north-east), Fareham (5 miles north), Horndean (11 miles north-east), Hedge End (12 miles north-west), Waterlooville (9 miles north-east) and Purbrook (8 miles north-east).
Around Alverstoke
In Alverstoke, that means kitchens and buildings near Bay House School and Village Home pub. The closest station to Alverstoke is Portsmouth Harbour station, about 2.1 miles north-east. Well-known places in the area include Tricorn Centre (3 miles north-east) and Gosport War Memorial Hospital (0.9 miles north). Open spaces near Alverstoke include West of the River Alver.
When to call us in Alverstoke
Any canopy in Alverstoke that’s used for cooking will gather grease in the end. It’s fuel, sitting directly over the burners, which is why a flare-up near a dirty canopy is so dangerous.
The symptoms we’re asked about most are:
- Wet, greasy drips from the hood
- Smoke hanging around the canopy during service
- Drips from the canopy onto the range
- A plenum thick with grease behind the filters
Church and community hall kitchens, near The Little Church or anywhere around Alverstoke, are easy to forget, but their extracts collect grease like any other.
What your quote should include
- Whether inaccessible sections are listed on the report
- Whether a survey comes first
- Their accreditations, such as BESCA Vent Hygiene Elite, CHAS or SafeContractor
- Whether a written report and pictures are included
How we price canopy cleaning
Every site gets its own quote. This is what makes a difference:
- Access, including roofs, risers and ceiling voids
- Whether it’s a one-off visit or part of a schedule
- How big the system is
- Any permits to work or inductions
What you pay depends on how big the system is, what state it’s in and access to every part of it. We give you a fixed price before any work starts, so you know where you stand.
Asking for a quote
A few details help us quote accurately. When you get in touch, it helps to send:
- The roof, plant room or outside wall the system runs to
- Detail shots of panels, filters and grilles
- Wide photos of the system and the area around it
- Your opening hours and when the area is out of use
For a fixed quote, ring 0345 646 2711 or drop us a line with the site type, your trading hours and a short description of the system. A few pictures and your last certificate or report help a lot. You’ll typically have a quote within one working day.