Hertfordshire · Grease filter exchange
Shenleybury grease filter exchange
Grease filter exchange for Shenleybury and the surrounding area: diagnosis first, then a fixed quote, the work and a report with pictures. Ask us for a fixed quote.
- Filters left unwashed on busy weeks
- A canopy running with filters missing
- Smoke and heat lingering under the hood
Grease filter exchange in Shenleybury
A filter that does not sit right lets grease straight past. Bent, damaged or missing filters leave gaps and every filter is checked when we swap them. Damaged filters are flagged so they can be replaced. The work covers mesh filters, school and hospital kitchens and island canopies, and the jobs we see most are a canopy that drips grease and filters left unwashed on busy weeks.
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.
We are CHAS and SafeContractor accredited, we hold ISO 9001 and we’re fully insured. On top of that, we are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, trading since 2009.
- Where
- Shenleybury (WD7)
- Region
- Hertfordshire
- Reporting
- Photo report after every visit
- Price
- Fixed quote, usually within a working day
- Hours
- Nights, weekends or holidays to suit you
- Call
- 0345 646 2711
- Page updated
- 30 October 2026
Grease filter exchange in Shenleybury: the local picture
The FSA’s food hygiene register includes about 8 bars, pubs and nightclubs across Shenleybury and its immediate surroundings (about a mile and a half). A pub or hotel kitchen that cooks every day builds up grease in its extract like any other. The fire and rescue service for Shenleybury is Hertfordshire Fire and Rescue Service. In most workplaces, including commercial kitchens, it’s the fire and rescue authority that enforces the Fire Safety Order. Kitchens in Shenleybury get their food hygiene inspections from Hertsmere council. They look at how clean the premises and equipment are, and the kitchen extract is part of that. Our report lists what was cleaned and when, which is useful to have ready.
Historic houses near Shenleybury, such as Wyllyotts Manor about 4.1 miles east, are a reminder that older buildings with event kitchens can have long, awkward duct routes. If you run catering at a healthcare site, such as a hospital like Kingsley Green about 0.7 miles west, the extract may need cleaning more often than a part-time kitchen.
Shenleybury is about 3 miles north of Borehamwood, in Hertfordshire. Shenleybury gets the same approach as every site we work on: a survey first, a fixed quote, work timed around your hours and a report with pictures. Our area takes in 381 places across Hertfordshire, large and small. You can also see our page for London, roughly 16 miles from Shenleybury.
Every address in WD7 is within our area for grease filter exchange, from busy streets to back roads. If you need grease filter exchange at premises on Hugo Gryn Way, Farm Close and Shenleybury or a nearby road, we can help. Other places close to Shenleybury include Broad Colney (1 mile north-west), London Colney (1 mile north), Tyttenhanger (2 miles north), Colney Heath (3 miles north-east) and North Mymms (3 miles east). We also work in nearby towns such as Watford (5 miles south-west), Hemel Hempstead (8 miles north-west), Stevenage (15 miles north), St Albans (4 miles north-west), Welwyn Garden City (8 miles north-east) and Harpenden (8 miles north).
What’s near Shenleybury
In Shenleybury, that means kitchens and buildings near The Black Lion pub, Manor Lodge School and North Mimms Park. Shenleybury’s nearest station is Radlett station, about 1.8 miles south-west. Nearby you will also find Hilfield Castle (4 miles south-west) and The Maltings (3.8 miles north-west). Open spaces near Shenleybury include Verulamium Lake and Broad Colney Lakes.
Also near Shenleybury
Also in Shenleybury
When to call us in Shenleybury
Wherever you are, Shenleybury included, filter washing is the job that gets skipped when the kitchen is busy. A missed wash or two is all it takes for a filter bank to clog.
These are the problems we see most often:
- A greasy plenum behind the filters
- Missing filters in the filter bank
- Grease dripping from the canopy
- Filters left unwashed on busy weeks
School kitchens, at schools like Clore Shalom School for example, are normally cleaned in the holidays so no lunches are lost.
Before you book anyone
- When they can work, and whether that is outside your opening hours
- Proof of insurance
- If the quote is a fixed price or an estimate
- Their accreditations, such as BESCA Vent Hygiene Elite, CHAS or SafeContractor
Keeping the system healthy
Aftercare is simple, and it makes the next visit easier:
- Wipe the outside of the canopy as part of daily cleaning
- Clear anything stored on or near the canopy
- Report a dripping canopy early
- Always run the extract while cooking
There’s no waiting: the canopy is ready as soon as the clean set is fitted. We take the greasy filters with us to be cleaned.
Damaged filters leave gaps in the defence. Replacing them early protects the plenum and ductwork.
How it works
We start by comparing what we find with the survey or your photos. Anything unexpected is raised with you before we go further. From there, it takes a few minutes per canopy, longer for a large kitchen with several canopies. Rural roads and tight entrances are worth telling us about before a visit to Shenleybury.
- 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.
- Clean filters go in and we check they sit snugly.
- We take the greasy set away and confirm the next date.
Preparing for the visit
- Tell us the best time to work, such as after service or at a weekend
- Dig out any earlier paperwork for the system
- Make sure someone can let us in and lock up afterwards
How to get a quote
For a fixed quote, phone us on 0345 646 2711 or drop us a line and tell us the type of site, your opening hours and roughly what the system looks like. Photos and the last report, if you have one, make the quote quicker. You will normally have a quote within one working day.
Advice
How we price grease filter exchange
A fixed price needs a few facts first. We check:
- How many systems or sites are involved
- How big the system is
- Parking and loading at the site
- Whether we need access equipment or extra panels
What you pay reflects the actual work. That’s why every job is surveyed first, and the price is agreed before any work starts.
Helping us quote
Many jobs can be priced from pictures and some basics. Useful things to send:
- The times we could work without disrupting the site
- The site address and the type of premises
- Wide pictures of the system and the area around it
- Where the plant sits or the system leaves the building, such as a roof or outside wall
Need a price for grease filter exchange? Please ring 0345 646 2711 or email us with a few details about the site. We’ll talk you through the work and send you a fixed quote before you commit to anything.
Questions from Shenleybury
Who is the fire and rescue service for Shenleybury?
That is Hertfordshire Fire and Rescue Service. A recent cleaning certificate and a note of the next clean date show that grease in the extract is being managed.
Can you come to Shenleybury after we close?
Yes, evening, overnight and weekend work is normal for us. The work in Shenleybury can fit around your hours. When you phone us on 0345 646 2711, or email photos, mention when the site is quiet.
Can you come out in an emergency?
Yes. Our emergency line runs 24/7, for problems that cannot wait. Ring any time and tell us what’s happened.
Does the law say we must follow TR19?
No. The law sets the duty, and TR19® is the recognised benchmark for meeting it. Under the Fire Safety Order 2005, the responsible person must reduce fire risk, and without records, many insurers may refuse or reduce a claim.
Does a filter exchange replace TR19 cleaning?
It is not. Clean filters help keep grease down, but the ducts and plenum still need cleaning at the right interval.
Do you deal with bent or broken filters?
We check every filter at each visit. We tell you about any that are damaged, because gaps let grease into the plenum.
Is there a cleaning option for the filters we have?
We can. Cleaning your existing filters is an option while others want an exchange. Either way, the canopy is not left without filters during service.
Do you have insurance?
Yes. Full insurance covers our work and have been trading since 2009.
In-house cleaning or a specialist?
Day-to-day cleaning is something your team can do: wiping canopies, washing grease filters and recording it in a log. Inside the ducts, risers and fan is specialist work, and that is where we come in.
If your staff spot something between visits, like drips, unusual noise, smells or damaged filters, it’s best reported rather than tackled in-house. We’ll take a look and give you a fixed quote.
Why act early in Shenleybury
Clogged filters choke the extract. Heat and fumes hang in the kitchen while the fan strains. Keeping filters clean keeps the extract working properly. Somewhere as small as Shenleybury, losing a kitchen or building to a fault is felt by everyone who uses it.
Kitchens, offices, schools and hospitals are all priced the same way: the size of the job, access, condition and working hours. Ask for a fixed quote and we will explain each part.
Why choose Duct Doctor in Shenleybury
- Accredited under CHAS and SafeContractor, with ISO 9001
- Work around your opening hours, with 24/7 emergency cover
- We’re fully insured
- Fixed quotes from a survey or pictures
When something else is needed
Not every problem is solved by grease filter exchange, and we’d rather say so up front. It will not put right:
- A fan that’s failing or too weak for the system
- A canopy too small for the cooking beneath it
- Odours from the discharge that filters will not stop
Not sure which it is? You can call 0345 646 2711 or drop us a line and we’ll tell you honestly.
Where we work
- Restaurants and pubs
- Mesh filters
- Wall canopies
- School and hospital kitchens
- Island canopies
- Baffle filters