Hertfordshire · Grease filter exchange
Grease filter exchange in Tewin, Hertfordshire
Need grease filter exchange in Tewin? We survey first, give you a fixed quote and work around your opening hours, then sign off with a report and photos.
- Grease dripping from the canopy
- Filters so greasy the air can barely pass
- Weak extraction at the canopy
FAQs for Tewin
Who is the fire and rescue service for Tewin?
That’s Hertfordshire Fire and Rescue Service. 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 do school kitchen extract cleaning in Tewin in the summer holidays?
Yes, and it’s the easiest time to do it. With about 5 schools and colleges on the FSA’s register within roughly a mile and a half of Tewin, it pays to plan holiday dates ahead. Booking early in the term gives the best choice of holiday dates.
Is there a cleaning option for the filters we have?
Yes, filters can be cleaned on a schedule as well as exchanged. We’ll talk you through which suits your kitchen when we quote.
Which sectors do you work in?
All kinds of commercial and public premises: from restaurants, pubs and hotels to schools, hospitals, care homes, offices, shops and food production sites. We fit the work around how the site operates.
Are you accredited?
CHAS, SafeContractor, ISO 9001 and BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease. We’ve been trading since 2009 and we are fully insured.
Can you give a price for filter changes?
Every kitchen is different, so we need to know the filters and interval first. You get a fixed price before the service starts.
What’s the right interval for changing filters?
It varies from kitchen to kitchen. We look at your cooking and set an interval to match and can change if your kitchen gets busier.
Are you insured?
Yes. We carry full insurance, and we’ve been trading since 2009.
Grease filter exchange for kitchens and businesses in Tewin
The filters in the canopy are the first thing cooking vapour meets. 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. We are often asked to deal with a canopy running with filters missing and bent or damaged filters that don’t sit properly, on island canopies, school and hospital kitchens and baffle filters.
Work in a small place like Tewin starts with a call to agree access and timings, and the clean itself is the same full TR19® job as in any town: canopy, filters, duct, fan and discharge, with a certificate and photo report at the end.
Nothing is signed off by word of mouth: a dated report with pictures of the work, plus a certificate through the BESCA Vent Hygiene Elite portal when the work is a TR19® Grease clean. Any parts we couldn’t reach are recorded on it too.
- Where
- Tewin (AL6)
- Region
- Hertfordshire
- Reporting
- Report and photos after the visit
- Quote
- Fixed quote, typically within a working day
- When we work
- Overnight and weekend work, 24/7 emergency callout
- Call
- 0345 646 2711
- Page updated
- 30 October 2026
For landlords and multi-site operators
The Fire Safety Order 2005 puts the duty to manage fire risk on the responsible person, and that can be the employer, the owner, a landlord, a facilities manager or a managing agent. With shared responsibility, good records help everyone.
We also work for facilities teams across offices, schools and healthcare across Hertfordshire. Larger estates can be phased building by building to keep disruption down.
Different parts, different methods
The plenum
Heavy grease in the plenum often follows clogged or missing filters or that the next TR19 clean is due.
Canopy filter housings
The trough or channel under the filters fills with grease. If it needs attention, we will tell you.
What affects the cost of grease filter exchange
We quote each job individually. This is what makes a difference:
- The condition we find in the survey
- The scale of the work
- A single visit or a regular plan
- Site requirements such as sign-in and permits
What you pay reflects the actual work. That is why we survey first, from pictures or on site, and the price is agreed before any work starts.
Helping us quote
To help us quote quickly, please include:
- The site address and the type of premises
- Your opening hours and when the area is out of use
- The paperwork from the last visit, if you have it
- Photos showing the whole system and its surroundings
Getting a quote doesn’t take long. Call or email with a few details and you will typically have a fixed price within one working day. Where a survey is needed, we arrange a time that suits the site.
Between visits
Looking after the system between visits is straightforward, and it makes the next visit easier:
- Don’t let the full clean slip because filters are changed
- Never leave gaps in the filter bank
- Clear anything stored on or near the canopy
- Tell us if the menu or opening hours change
Between visits, check that every filter is still in place. A missing filter leaves a gap for grease, so let us know if one goes missing or gets damaged.
If cooking has stepped up, the filter schedule should too. Changing the interval early stops grease building up unseen behind the canopy.
Why it’s worth doing now in Tewin
In Tewin, as everywhere, a filter service is not a substitute for TR19 cleaning. But clean filters do help the system between cleans, and that shows when the next clean comes round. In a small place like Tewin, a system that fails can take a site out of use.
A single site or a whole portfolio, we price it on the same basis: what needs doing, how we get to it and when. The price is fixed before we start.
Why choose Duct Doctor in Tewin
- Photo reports with every job
- Work around your opening hours, with 24/7 emergency cover
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
- We are fully insured
Take a look at how cleaning jobs are priced and our accreditations.
Nearby places to Tewin
What else we do in Tewin
In-house cleaning or a specialist?
Good housekeeping makes our visits easier, not unnecessary. Regular in-house cleaning slows the build-up, but the parts you can’t see still need a specialist at the right interval.
Your own staff can handle the daily basics: wiping down canopy surfaces, cleaning filters and keeping a simple log. Inside the ducts, risers and fan is specialist work, and that’s where we come in.
Grease filter exchange around Tewin
The FSA’s food hygiene register includes about 4 pubs and bars in and around Tewin, up to about a mile and a half out. A pub or hotel kitchen that cooks every day builds up grease in its extract like any other. The fire and rescue service for Tewin is Hertfordshire Fire and Rescue Service. Fire and rescue authorities enforce the Fire Safety Order in most non-domestic premises, and in a kitchen that fire risk includes the grease in the extract. Environmental health officers from East Hertfordshire council inspect food businesses in Tewin. The cleanliness of the kitchen and its equipment, extraction included, is part of what they check. A TR19® certificate and photo report after each clean gives you a record to show an inspector.
Historic houses near Tewin, such as Digswell House about 2.1 miles west, are a reminder that older buildings with event kitchens can have long, awkward duct routes. Term dates shape school work: for a school like Ridgeway Academy, an extract clean fits neatly into a half-term or summer break. Kitchens that cook twelve hours or more a day, as some healthcare kitchens do, fall into BESA’s three-monthly minimum; Queen Elizabeth II Hospital is the nearest hospital to Tewin, about 2.8 miles south-west.
Tewin is about 2 miles north-east of Welwyn Garden City, in Hertfordshire. If you need grease filter exchange in Tewin, it’s easy to get a fixed quote: please ring 0345 646 2711 or email us. We work across South East England and London, Tewin included. Across Hertfordshire, we cover 381 places, Tewin among them. There’s also a page for London, roughly 22 miles from Tewin.
All of AL6 is covered for grease filter exchange, from the main roads to the quietest streets. Local streets include Upper Green Road, Godfries Close and Harwood Close, and we cover them all for grease filter exchange. Close by, we work in Tewin Wood (1 mile north), Burnham Green (1 mile north-west), Harmer Green (1 mile north-west), Haldens (1 mile west) and Bramfield (1 mile east). Within a short drive, we also cover Watford (15 miles south-west), Hemel Hempstead (14 miles west), Stevenage (6 miles north), St Albans (9 miles south-west), Bishop's Stortford (14 miles east) and Harpenden (8 miles west).
Landmarks near Tewin
We work in commercial kitchens and buildings around Rose And Crown Public House and Panshanger Park. For rail, the closest station is Welwyn North station, roughly 1.6 miles west of the centre. Nearby you will also find Howard Centre (2.4 miles south-west) and Queen Elizabeth II Hospital (2.8 miles south-west). Open spaces near Tewin include Tewin Orchard and Hopkyns Wood.
The process
At the end of the visit, someone from your team can look over the work with us. We point out anything that couldn’t be reached or needs a follow-up, and it goes on the report too. The visit 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 Tewin.
- We start by noting how many filters you have and what type they are.
- We agree a schedule that suits how much the kitchen cooks.
- At each visit, the greasy filters are lifted out.
- Clean, dry filters are fitted in their place, with no gaps left between them.
- Anything we notice, such as bent filters or a dirty plenum, is pointed out.
Before we arrive
- Let us know about permits to work or site inductions
- Allow time for equipment near the work to be turned off and cool down
- Mention any locked doors, roof access or ceiling voids
Getting a quote
The quickest way to a quote is to send pictures: wide shots of the system, close-ups of anything that worries you and how we’d get to it. Add the site type and your opening hours, and we can price many jobs without a visit.