Hertfordshire · Grease filter exchange
Grease Filter Exchange in Chells
Professional grease filter exchange in and around Chells, booked around your opening hours and signed off in writing with photos.
- A greasy plenum behind the filters
- Blocked baffle filters
- Hand-washed filters that still look greasy
For landlords and multi-site operators
Facilities teams in offices, schools and healthcare sites book us too across Hertfordshire. Larger estates can be phased building by building to keep disruption down.
When the building owner and the occupier are different, the lease normally sets out who maintains what. We can quote either party and send the paperwork to whoever needs it.
About our grease filter exchange in Chells
Whether your canopy has baffle or mesh filters, they load up with grease. Once they’re clogged, airflow drops and the extract struggles. Regular exchange keeps the air moving. If you have hand-washed filters that still look greasy and staff short of time to wash filters, we can help, from baffle filters, wall canopies and school and hospital kitchens onwards.
Kitchens around a place like Chells are often in older buildings or single-storey extensions, with the duct running through a roof space or up an outside wall. Flat runs collect grease and need proper access to clean.
Duct Doctor has been trading since 2009, as a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we are fully insured.
- Location
- Chells (SG2, SG1)
- Wider area
- Hertfordshire
- Paperwork
- Written report with photos
- Quote
- A fixed price before any work starts
- Working hours
- Out of hours as standard, 24/7 emergency line
- Call
- 0345 646 2711
- Page updated
- 30 October 2026
Leave it or put it right?
Leaving filters too long pushes more grease into the plenum and ducts. The ductwork then loads up faster, and grease may build up faster than the cleaning interval allows. When a site near Chells shuts unexpectedly, the people who rely on it notice at once.
What you pay reflects the actual work. That’s why we survey first, from pictures or on site, and why the quote is fixed before work begins.
Why book with us
- Fixed quotes, normally within one working day
- Full insurance on every job
- Every visit written up, with photos
- Accredited under CHAS and SafeContractor, with ISO 9001
Read what affects the cost or our accreditations and certificates.
How we price grease filter exchange
Some jobs are bigger than they look, and some smaller. The main factors:
- Where the site is and how we reach it
- Whether we need access equipment or extra panels
- What state the system is in
- Any permits to work or inductions
Leaving it longer rarely makes the work cheaper. Problems in a system tend to grow, and a neglected system can mean more work. If you’re not sure what’s needed, give us a ring on 0345 646 2711 or send us an email and we will give you an honest view and a fixed quote.
Asking for a quote
The more you tell us, the more accurate the quote. With your enquiry, please include:
- Your opening hours and when the area is out of use
- Wide pictures of the system and the area around it
- The site address and the type of premises
- The paperwork from the last visit, if you have it
If you need grease filter exchange in Chells, call 0345 646 2711 or email us. Let us know the site type and the opening hours, plus photos or the previous report if they’re to hand. We typically send a fixed quote within one working day.
How it works
We start by comparing what we find with the survey or your pictures. If anything is different, we talk it through with the person on site before carrying on. From there, it takes well under an hour for most canopies. For a place like Chells, we load the van from the survey notes so the work can be done in one visit where possible.
- First, we check the canopies and the filters in them.
- We note any filters that are bent, damaged or missing.
- Greasy filters are swapped for clean ones.
- We check the filters are seated and the canopy is ready to use.
- We tell you if the plenum or canopy needs a clean.
Preparing for the visit
- Tell us the best time to work, such as after service or at a weekend
- Let us know about permits to work or site inductions
- Name a contact who can let us in at the agreed time
Getting a quote
We do not publish a price list, because every site is different. We look at your system first, from photos or on a visit, then send a fixed quote. To get going, call 0345 646 2711 or send us an email.
Advice
What grease filter exchange looks like in Chells
Look up Chells on the FSA’s food hygiene register and you will find about 42 cafés, restaurants and staff canteens and about 41 takeaways within roughly a mile and a half of the centre of Chells. Where they cook under a canopy, the grease filters are the first line of defence and clog quickly. Environmental health officers from Stevenage council inspect food businesses in Chells. A greasy canopy or dripping filters are the sort of thing an inspection can pick up. Our report lists what was cleaned and when, which is useful to have ready. The fire and rescue service for Chells is Hertfordshire Fire and Rescue Service. The Fire Safety Order puts the duty on whoever runs a kitchen to control its fire risk, and a greasy duct is fuel.
If you look after a school kitchen, at a school such as The Nobel School or anywhere near Chells, the holidays are the usual time for a TR19® clean. Kitchens that cook twelve hours or more a day, as some healthcare kitchens do, fall into BESA’s three-monthly minimum; Lister Hospital is the nearest hospital to Chells, about 2.1 miles north-west. Where a hall near St Hugh & St John, or anywhere in Chells, hosts lunch clubs or events, its extract gathers grease just as a café’s does.
Chells is about 1 mile east of Stevenage, in Hertfordshire. Chells gets the same approach as every site we work on: diagnosis first, a fixed price, out-of-hours working where necessary and a written report with pictures. Our Hertfordshire coverage runs to 381 places, Chells among them. Our Milton Keynes page covers sites nearby, about 27 miles away.
Here we cover the SG2 and SG1 postcode area for grease filter exchange. If you need grease filter exchange at premises on Scott Road, Eliot Road and Newton Road or anywhere close by, we can help. If your site is just outside Chells, we cover Stevenage (1 mile west), St Nicholas (1 mile north-west), Pin Green (1 mile west), Aston End (1 mile south-east) and Bedwell (1 mile south-west). Further out, we also cover St Albans (13 miles south-west), Bishop's Stortford (14 miles east), Welwyn Garden City (8 miles south), Harpenden (10 miles south-west), Hitchin (5 miles north-west) and Hoddesdon (13 miles south-east).
What’s near Chells
We work in commercial kitchens and buildings around Lodge Farm Primary School and the streets around them. For rail, the closest station is Stevenage station, about 1.8 miles south-west. Well-known places in the area include Lister Hospital (2.1 miles north-west) and Benington Castle (2.4 miles south-east). The countryside around Chells includes Pryor's Wood.
When something else is needed
Grease filter exchange cannot fix everything, and we’d rather say so up front. It doesn’t solve:
- Smell complaints that need odour control equipment
- A canopy too small for the cooking beneath it
- A heavily greased plenum or canopy, which needs cleaning to TR19
If you’re not sure, just phone us on 0345 646 2711 or use the quote form and we will give you a straight answer before you book.
Parts of the system we cover
- Restaurants and pubs
- Baffle filters
- Wall canopies
- Island canopies
- School and hospital kitchens
- Mesh filters
Different parts, different methods
Baffle filters
Baffle filters are a common choice for commercial canopies. They still need regular cleaning, because the grease they collect builds up.
Busy restaurant and pub kitchens
Heavy cooking means more grease reaching every part of the system. Changing them on time protects the ducts behind.
Also near Chells
More services for Chells
FAQs for Chells
Which fire authority looks after Chells?
Chells is in the area of Hertfordshire Fire and Rescue Service. If a fire safety officer visits a commercial kitchen, they may ask about the fire risk assessment and how the extract is kept clean.
Do you work overnight in Chells?
Yes, we can come after you close and finish before you open. It means the site in Chells keeps running as normal. Your opening times are the first thing we ask for.
What do you do with what you remove?
We take it away when we go. While we work, it’s kept contained so the area stays clean.
What types of filter do you exchange?
We work with both baffle and mesh filters. The first step is recording what you have and plan the exchange around them.
How long will you be on site?
We will confirm the time with your quote. For a typical site, it takes less than an hour in most kitchens.
How far ahead should we book?
For planned work, earlier is better, especially if the next clean or test is due soon. Emergencies are different, because our line is open 24/7.
Is TR19 a legal requirement?
No, not in itself. Insurers, fire officers and EHOs look to TR19® as the benchmark, and many insurance policies ask for proof of TR19® cleaning. The law behind it is the Fire Safety Order 2005 in England and Wales.
Do you offer maintenance contracts?
Yes, of course. Tell us what you have and how it’s used and we will propose a schedule with a fixed quote.
Staff cleaning versus specialist work
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 can diagnose it and quote.
Keep a record of what your team does. A dated log of in-house cleaning and checks helps show that the system is managed between specialist visits, next to our reports.