Wokingham · Grease filter exchange
Knowl Hill grease filter exchange
For a scheduled grease filter exchange, swapping dirty canopy filters for clean ones in Knowl Hill, one call is all it takes, from survey to sign-off. CHAS and SafeContractor accredited, ISO 9001 and fully insured.
- Smoke and heat lingering under the hood
- Blocked baffle filters
- Grease left in baffles after washing
About our grease filter exchange in Knowl Hill
Grease filters are the first line of defence in a kitchen extract. They catch grease before it reaches the plenum and ductwork, but only while they’re reasonably clean. With grease filter exchange, clean filters replace greasy ones at regular intervals. The work covers school and hospital kitchens, restaurants and pubs and baffle filters, and the jobs we see most are missing filters in the filter bank and weak extraction at the canopy.
In a village or hamlet like Knowl Hill, the kitchens that need extract cleaning are normally a pub, a school, a care home or a hall kitchen, wherever there is one. Each still has a canopy and duct that collect grease, whatever the size of the place.
Duct Doctor has been trading since 2009, and 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.
- Location
- Knowl Hill (RG10)
- Wider area
- Wokingham
- Records
- Report and pictures after the visit
- Quote
- A fixed quote up front
- Hours
- Nights, weekends or holidays to suit you
- Phone
- 0345 646 2711
- Last updated
- 30 October 2026
The process
There are three stages on the day: set-up, the treatment itself and the sign-off. Set-up means sheeting and making equipment safe, and the sign-off is a written report with pictures. The middle part takes longest, which takes a short visit, depending on how many filters the canopies hold. Visits to a village like Knowl Hill are booked in advance, at a time that suits whoever runs the site.
- We record the number, size and type of your filters.
- An exchange schedule is agreed to suit your cooking.
- On each visit, we remove the greasy filters.
- A clean set is fitted and checked for gaps.
- The dirty filters leave with us and the next visit is booked.
How to prepare
- Mention any sign-in, permit or induction we need
- Let us know about parking and loading
- Allow time for equipment near the work to be turned off and cool down
How to get a quote
There’s no standard price list, because no two systems are the same. We look at your system first, from pictures or on a visit, and then give you a fixed quote. To get going, call 0345 646 2711 or send us an email.
Advice
Nearby places to Knowl Hill
Also in Knowl Hill
What affects the quote in Knowl Hill
You’ll get a fixed price before we start. It takes into account:
- How many systems or sites are involved
- The times the site is available
- The condition we find in the survey
- Access, including roofs, risers and ceiling voids
A single site or a whole portfolio, the quote is built the same way: the work involved, the access and the timing. The price is fixed before any work starts.
Asking for a quote
A few details help us quote accurately. When you get in touch, it helps to send:
- Anything you’ve noticed, such as smells, noise, drips or poor airflow
- Wide pictures of the system and the area around it
- The roof, plant room or outside wall the system runs to
- Any previous report or certificate
To get a fixed quote, call 0345 646 2711 or email us with the site type, your trading hours and a short description of the system. A few photos and your last certificate or report help a lot. You’ll usually have a quote within one working day.
What we are called out for in Knowl Hill
The type of cooking matters. Fryers, grills and woks load filters faster than ovens and steamers so no single schedule suits every kitchen.
These are the problems we see most often:
- Blocked baffle filters
- Smoke and heat lingering under the hood
- A canopy running with filters missing
- A greasy plenum behind the filters
Historic houses near Knowl Hill, such as Harleyford Manor about 3 miles north, are a reminder that older buildings with event kitchens can have long, awkward duct routes.
What to look for in a quote
- Whether the whole system is included, or only the parts that are easy to reach
- Proof of insurance
- Whether the figure could change on the day
- What paperwork you get at the end
What your team can do, and what needs us
Staff cleaning doesn’t replace a specialist visit; it supports it. Regular in-house cleaning slows the build-up, but hidden parts of the system still need specialist attention.
When your team notices a problem between visits, like drips, unusual noise, smells or damaged filters, it’s best reported rather than tackled in-house. We will take a look and give you a fixed quote.
For landlords and multi-site operators
Keeping records across a portfolio is half the battle. Every visit ends with a dated report and pictures, so you can show an insurer or inspector what was done at each site.
We regularly work with managing agents. Tell us the site, the work and the access arrangements, and we’ll send a fixed quote.
Looking after it afterwards
Once we have finished, these simple steps help:
- Make sure we can reach the canopy on exchange day
- Report a dripping canopy early
- Make sure no filter is left out
- Report damaged filters so they can be replaced
Nothing changes for your staff, except one less greasy job. Just keep the canopy clear for the next visit and let us know of any changes to opening hours.
Damaged filters leave gaps in the defence. Sorting them now keeps grease where it can be caught.
When something else is needed
We will not sell you work that does not address the problem, so these are the things it will not cover:
- A canopy that doesn’t capture the vapour properly
- A heavily greased plenum or canopy, which needs cleaning to TR19
- Grease deep in the extract system
If you are not sure, just phone us on 0345 646 2711 or email us and we’ll give you a straight answer before you book.
What the work covers
- Wall canopies
- School and hospital kitchens
- Island canopies
- Restaurants and pubs
- Mesh filters
- Baffle filters
Questions from Knowl Hill
Can you come to Knowl Hill after we close?
Yes, we can come after you close and finish before you open. It means the site in Knowl Hill keeps running as normal. When you ring 0345 646 2711 or drop us a line, mention when the site is quiet.
Which fire service covers Knowl Hill?
Royal Berkshire Fire and Rescue Service is the fire and rescue service for Knowl Hill. TR19® isn’t law, but it’s the benchmark many fire officers and insurers look to when they ask how often the extract is cleaned.
Do you work in Knowl Hill?
Yes. Knowl Hill is part of the area we cover, as part of our area across London and the South East.
How much notice do you need?
It depends on the time you need and how big the job is. Mention your preferred dates with your enquiry, and for anything urgent, ring our 24/7 emergency line.
How do you protect the area?
With sheeting and covers, before anything else happens. We keep the work contained and leave the area clean.
Do you clean filters as well as exchanging them?
Yes, filters can be cleaned on a schedule as well as exchanged. We’ll explain the options when we quote.
What accreditations do you have?
Duct Doctor is a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 are in place too, and we are fully insured.
Can we book visits on a schedule?
Yes. Plans on a 3, 6 or 12-monthly cycle are available, to suit the system and how it’s used.
Grease, kitchens and Knowl Hill
According to Food Standards Agency records, there are about 5 pubs and bars within about 1.5 miles of central Knowl Hill. Any of them serving cooked food has an extract to keep clean, from canopy to discharge. Knowl Hill is covered by Royal Berkshire Fire and Rescue Service. Its fire safety officers can audit commercial kitchens, and grease in the extract is part of a kitchen’s fire risk. Environmental health officers from Windsor and Maidenhead council inspect food businesses in Knowl Hill. An officer looking round a kitchen will see the canopy, and grease there is hard to miss. Keeping each certificate and photo report on file helps show the extract is looked after.
Healthcare kitchens can’t easily close, so their extracts are cleaned overnight or between meal services; the nearest hospital to Knowl Hill is St Mark's Hospital, about 3.3 miles east. If you run a church or community hall kitchen, near Saint Peter or elsewhere in Knowl Hill, its extract still collects grease from every lunch and event.
Knowl Hill is about 4 miles west of Maidenhead, in Wokingham. Whether your site is in the middle of Knowl Hill or further out, we cover grease filter exchange for every kind of premises, from a single unit to a large public building. Knowl Hill is one of 35 towns, villages and districts in Wokingham where we work for commercial clients. Reading is in our area too, about 8 miles from Knowl Hill.
All of RG10 is within our area for grease filter exchange, from busy streets to back roads. We cover sites on Star Lane, Choseley Road and Choseley Close and nearby roads. Neighbouring places we cover for grease filter exchange include Warren Row (1 mile north-west), Cold Harbour (1 mile south-east), Bowsey Hill (1 mile west), Cockpole Green (2 miles north-west) and Wargrave (2 miles west). Larger places within reach include Reading (8 miles south-west), Wokingham (7 miles south), Woodley (5 miles south-west), Earley (7 miles south-west), Crowthorne (9 miles south) and Lower Earley (7 miles south-west).
What’s near Knowl Hill
We work in commercial kitchens and buildings around Seven Stars Public House And Attached Stables. For rail, the closest station is Wargrave station, about 2.7 miles west of the centre. Nearby you will also find Frazer Nash Archives (3.6 miles west) and St Mark's Hospital (3.3 miles east). Open spaces near Knowl Hill include Weycock Hill and Hurley Chalk Pit.