Hertfordshire · Grease filter exchange
Round Bush grease filter exchange
Grease filter exchange for Round Bush and the surrounding area: diagnosis first, then a fixed quote, the work and a report with photos. Ask us for a fixed quote.
- Filter washing that keeps being missed
- Grease building up behind the canopy filters
- Hand-washed filters that still look greasy
Landlords, agents and facilities managers
If you look after several sites, we can plan visits across the whole estate and price them together. Each site gets its own report and photos, so each one has its own record.
Facilities teams in offices, schools and healthcare sites book us too in Round Bush and across Hertfordshire. Work can be phased by floor, building or site to keep disruption down.
Grease filter exchange in Round Bush, done properly
We set up grease filter exchange for kitchens in Round Bush on a schedule that suits their cooking. The heavier the cooking, the more often filters need changing while a lighter kitchen can go longer. The interval is agreed before the first visit. We are often asked to deal with filters that leave gaps in the canopy and filters that come out of the sink still dirty, across mesh filters, wall canopies and school and hospital kitchens.
For a kitchen in or near Round Bush, the visit is planned around opening hours and the journey, and the clean covers the whole system, as it would anywhere: canopy, filters, duct, fan and discharge, with a certificate and photo report at the end.
Think of the report as the system’s health record: dated, with pictures, and showing what was done. Grease extract cleans are also certificated to TR19® Grease through the BESCA VHE portal and sits alongside the report.
- Place
- Round Bush (WD25)
- Wider area
- Hertfordshire
- Records
- Photo report after every visit
- Price
- Fixed quote, normally within a working day
- Working hours
- Out of hours as standard, 24/7 emergency line
- Call
- 0345 646 2711
- Page updated
- 30 October 2026
FAQs for Round Bush
Can you work in Round Bush outside opening hours?
Yes, out-of-hours work is a big part of what we do. The work in Round Bush can fit around your hours. Just ring 0345 646 2711 or use the quote form with your opening times and we will plan around them.
Which fire and rescue service is responsible for Round Bush?
It’s Hertfordshire Fire and Rescue Service, which covers Round Bush. A recent cleaning certificate and a note of the next clean date show that grease in the extract is being managed.
How regularly do grease filters need exchanging?
It varies from kitchen to kitchen. The schedule is based on how heavily you cook and can change if your kitchen gets busier.
Is filter exchange enough instead of a full extract clean?
No. Some grease passes the filters as vapour and settles in the ducts and the whole system still needs its TR19 clean.
Do you offer emergency callouts?
Yes, 24/7. Office hours are Monday to Friday, 8am to 6pm, and the emergency line covers the rest.
Do you have insurance?
Yes. Full insurance covers our work, and we’ve been trading since 2009.
How much does a filter exchange service cost?
Every kitchen is different, so we quote once we know your filters and schedule. We send you a fixed quote before the first visit.
What do you do with what you remove?
It leaves the site with us at the end of the visit. While we work, it’s kept contained to keep the area clean.
Signs you need grease filter exchange in Round Bush
What a kitchen cooks affects how fast filters clog. Frying, grilling and chargrilling produce far more grease than steaming or baking, so the right exchange interval varies.
Most sites get in touch when they notice one of these:
- Filter washing that keeps being missed
- Grease left in baffles after washing
- Grease filters clogged with grease
- Damaged filters letting grease past
Term dates shape school work: for a school like Fair Field Junior School, an extract clean fits neatly into a half-term or summer break.
Comparing quotes
- How areas they cannot reach will be recorded
- When the next visit should be, and why
- Proof of insurance
- Whether the whole system is included, or only the parts that are easy to reach
What happens if it’s left?
Leaving filters too long pushes more grease into the plenum and ducts. The ductwork then loads up faster and grease readings can rise between cleans. Systems in rural buildings are often out of sight and out of mind.
Kitchens, offices, schools and hospitals are all priced the same way: how much there is, how we reach it, what state it’s in and when we can work. Ask for a fixed quote and we’ll explain each part.
Why choose Duct Doctor in Round Bush
- Full insurance on every job
- Accredited under CHAS and SafeContractor, with ISO 9001
- One number for every site across the South East and London
- Survey first, then a fixed quote
Read what affects the cost and our accreditations and certificates.
Nearby places to Round Bush
More services for Round Bush
The process
On the day, we arrive at the time agreed with you, often in the evening, overnight or at the weekend so the site keeps working. Anything that needs to be off for the work is switched off and left to cool first, and the area around the work is covered and protected. The work itself takes a few minutes per canopy, longer for a large kitchen with several canopies. Seeing the system in pictures first means the trip to Round Bush can be planned properly.
- We start by noting how many filters you have and what type they are.
- Together we set how often the filters should be changed.
- Each visit starts with the used filters being removed.
- We fit clean filters and check they sit snugly in the housing.
- Anything we notice, such as bent filters or a dirty plenum, is pointed out.
Getting ready for the visit
- Let us know about parking and loading
- Arrange a key holder or contact on site
- Let us know when the site is closed or quiet
Getting a quote
Here’s what helps us quote: the address, the type of site and when it’s open, a few pictures and any previous report or certificate. Once you have those, call 0345 646 2711 or email us.
Advice
What affects the quote in Round Bush
Every site gets its own quote. This is what makes a difference:
- Where the site is and how we reach it
- The condition we find in the survey
- The number of sites or systems
- One-off work versus a regular cycle
What you pay depends on the size of the system, what state it’s in and access to every part of it. You get a fixed price before any work starts, so there are no surprises.
What we need to know
When you contact us, it’s useful to have:
- Close-ups of filters, grilles, hatches or access panels
- Problems your staff have spotted
- The roof, plant room or outside wall the system runs to
- When the site is open and when it’s quiet
Need a price for grease filter exchange? Please call 0345 646 2711 or email us with a few details about the site. We’ll talk you through the work and give you a fixed quote before anything is booked.
Staff cleaning versus specialist work
Away from the kitchen, the in-house job is mainly checking: clear grilles, a log of filter changes and reporting anything odd. Cleaning inside ducts and units is specialist work.
Day-to-day cleaning is something your team can do: wiping down canopy surfaces, cleaning filters and keeping a simple log. What they can’t safely do is clean inside the ductwork, the fan or the risers, which is where we come in.
Part by part
The plenum
Behind the filters sits the plenum, where air gathers before the duct. Grease that gets past the filters settles there.
Canopy filter housings
Filters sit in a housing or channel in the canopy. A damaged housing leaves gaps.
Kitchen extracts in Round Bush
Look up Round Bush on the FSA’s food hygiene register and you’ll find about 23 restaurants, cafés and canteens and about 9 takeaways in and around Round Bush, up to about a mile and a half out. Any of those kitchens with a canopy relies on its filters to catch grease before it reaches the duct. In Round Bush, food businesses are inspected by environmental health officers from Hertsmere council. 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. Hertfordshire Fire and Rescue Service covers Round Bush. Its fire safety officers can audit commercial kitchens, and grease in the extract is part of a kitchen’s fire risk.
A hospital like Shenley Hospital, about 2.7 miles north-east, is the kind of site where a kitchen may cook for patients, staff and visitors all day. Older buildings often hide long, awkward duct runs, and if you run a kitchen at a historic venue in the area (High Elms Manor is about 2.9 miles north-west), access may need planning.
Round Bush is about 2 miles north of Bushey, in Hertfordshire. Whether your site is in the middle of Round Bush or further out, we cover grease filter exchange for every kind of premises, from a single unit to a large public building. Round Bush is one of 381 towns, villages and districts in Hertfordshire we cover for commercial clients. There’s also a page for London, about 16 miles away.
Every address in WD25 is within our area for grease filter exchange, from busy streets to back roads. You’ll find streets such as Round Bush Lane, Primrose Lane and Radlett Road, all of which we cover for grease filter exchange. We also cover the places around Round Bush: Aldenham (1 mile west), Kemprow (1 mile north), Patchetts Green (1 mile south-west), Letchmore Heath (1 mile south-east) and Radlett (1 mile north-east). We also work in nearby towns such as Hemel Hempstead (7 miles north-west), St Albans (6 miles north), Welwyn Garden City (11 miles north-east), Harpenden (10 miles north), Hoddesdon (15 miles east) and Cheshunt (13 miles east).
Local landmarks in Round Bush
In Round Bush, that means kitchens and buildings near Garston Park, Three Compasses Public House and Queens' School and the streets around them. The nearest railway station is Radlett station, roughly 1.5 miles north-east of the centre. Nearby you’ll also find Radlett and District Museum (1.4 miles north-east) and Shenley Hospital (2.7 miles north-east). The countryside around Round Bush includes Stanmore Common.