Essex · Grease filter exchange
Grease Filter Exchange in Great Waltham
We cover Great Waltham for grease filter exchange. Out-of-hours visits, a fixed quote and a written report with pictures on every job.
- Filters that come out of the sink still dirty
- Poor airflow through the filters
- Bent or damaged filters that don’t sit properly
Grease filter exchange for kitchens and businesses in Great Waltham
Good filters only work when they fit properly. Gaps in the filter bank are a direct route into the plenum and every filter is checked when we swap them. We point out any that need replacing. The work covers school and hospital kitchens, baffle filters and mesh filters, and common reasons people get in touch are missing filters in the filter bank and hand-washed filters that still look greasy.
For a kitchen in or near Great Waltham, the visit is planned around opening hours and the journey, and the clean itself is the same full TR19® job as in any town: canopy to discharge, then a TR19® certificate and a photo report.
Think of the report as the system’s health record: dated, with photos, and showing what was done. For TR19® Grease cleans, the certificate comes through the BESCA Vent Hygiene Elite portal, ready for your insurer.

- Location
- Great Waltham (CM3)
- Region
- Essex
- Records
- Report and photos after the visit
- Quotes
- A fixed quote up front
- Hours
- Out of hours as standard, 24/7 emergency line
- Call
- 0345 646 2711
- Reviewed
- 30 October 2026
What happens if it’s left?
Grease dripping from the canopy is a sign the filters can’t hold any more. Left, it ends up on equipment, food areas and staff, which an EHO may well notice. Rural sites cannot always move to another kitchen or room when something fails.
Working hours, access and the scale of the site all affect the cost. We take each of them into account, and the price is fixed before any work starts.
Why choose Duct Doctor in Great Waltham
- Photo reports with every job
- A fixed price before any work starts
- Evenings, overnight and weekends, plus 24/7 emergency callout
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
Towns and villages near Great Waltham
Also in Great Waltham
What grease filter exchange looks like in Great Waltham
The FSA’s data shows about 7 pubs and bars registered across Great Waltham and its immediate surroundings (about a mile and a half). Any of them serving cooked food has an extract to keep clean, from canopy to discharge. It’s Chelmsford council that sends environmental health officers to food businesses in Great Waltham. A greasy canopy or dripping filters are the sort of thing an inspection can pick up. A TR19® certificate and photo report after each clean gives you a record to show an inspector. Essex County Fire and Rescue Service covers Great Waltham. Grease in a kitchen extract is a recognised fire risk, and the fire authority enforces the law on managing it in most commercial premises.
If you run catering at a healthcare site, such as a hospital like Broomfield Hospital about 1.4 miles south, the extract may need cleaning more often than a part-time kitchen. Volunteers running a hall kitchen near Church of SS Mary and Laurence, or anywhere in Great Waltham, may not know when the extract was last cleaned, and a grease test settles it.
Great Waltham is about 4 miles north of Chelmsford, in Essex. Great Waltham 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. Across Essex, we cover 644 places, Great Waltham among them.
Grease filter exchange in CM3 follows the same survey, fixed quote and written report as everywhere else we cover. Grease filter exchange is available to premises on Brook Mead, Cherry Garden Road and Chelmsford Road and the roads around them. Nearby, we also carry out grease filter exchange in Breeds (1 mile south-west), Minnow End (1 mile south-east), Little Waltham (1 mile south-east), Broomfield (2 miles south-east) and Chignall Smealy (2 miles south-west). Larger places within reach include Chelmsford (4 miles south), Basildon (15 miles south), Braintree (8 miles north-east), Harlow (15 miles west), Brentwood (13 miles south-west) and Maldon (11 miles south-east).
Near you in Great Waltham
We work in commercial kitchens and buildings around The Beehive pub, among other places. For rail, the closest station is Beaulieu Park station, roughly 3.7 miles south-east. Well-known places in the area include Broomfield Hospital (1.4 miles south). Open spaces near Great Waltham include Little Waltham Meadows.
Your questions about grease filter exchange in Great Waltham
Can the work in Great Waltham be done at night or at weekends?
Yes, out-of-hours work is a big part of what we do. The site is handed back ready to open. Tell us your opening hours when you ask for a quote.
Will you come out to Great Waltham?
Yes. Great Waltham is within the area we cover across London and the South East. The journey is planned ahead, so a few details about the route help.
How much notice do you need?
That depends on the slot you want and the size of the job. Tell us your preferred dates when you ask for a quote, and if it’s an emergency, call us any time.
Which records should we keep?
Each report and certificate we give you, kept together in your maintenance log, along with your own cleaning log. BESA says certificates should show the date, location and technician.
What types of premises do you cover?
Commercial premises of every kind: from restaurants, pubs and hotels to schools, hospitals, care homes, offices, shops and food production sites. Work is timed around how each site runs.
Do we need to close while you work?
Not typically. Visits are timed for when the area is closed, such as overnight or at a weekend, so you keep your normal hours.
Do you look at the system first?
Yes. For many sites, photos and a few details are enough, and larger or hidden systems get a visit.
Can we book visits on a schedule?
Yes. We run scheduled maintenance contracts, set at the interval the system needs. Each report recommends when the next visit should be.
Looking after it afterwards
Aftercare is simple, and it makes the next visit easier:
- Do not refit a filter that is bent
- Keep the extract on whenever the range is in use
- Never leave gaps in the filter bank
- Report a dripping canopy early
If the plenum behind the filters looks greasy, we say so. That might mean bringing a TR19® clean forward and we can book that in.
Clean filters plus regular full cleans keep the system in good health. Setting both up on a schedule keeps everything on track.
How the job changes from site to site
School, care home and staff kitchens
Lighter kitchens can often go longer between changes. The interval is set to fit.
Mesh filters
Grease lodges deep in the layers of a mesh filter, which makes hand-washing hard work.
How we price grease filter exchange
We don’t publish a price list, because sites vary so much. What we look at:
- Parking and loading at the site
- The scale of the work
- How easy every part is to reach
- When the work can happen, such as evenings, overnight or weekends
One small site or a whole estate, the quote is built the same way: the work involved, the access and the timing. The price is fixed before any work starts.
Helping us quote
We can often survey from photos. The most useful are:
- Any previous report or certificate
- Any access panels or hatches you can see
- A few general shots of the system
- The site address and the type of premises
Every quote begins with a look at the system, either from pictures and details you send or from a site visit. Then we send a fixed price, before any work starts.
Honest limits
A few issues sit outside what this work can do:
- A canopy too small for the cooking beneath it
- Cooking smells reaching neighbours, which need odour control
- Grease already built up in the ductwork, which needs a full TR19 clean
Not sure which it is? You can phone us on 0345 646 2711, or send details by email and we will tell you honestly before you book.
What the work covers
- School and hospital kitchens
- Island canopies
- Mesh filters
- Wall canopies
- Restaurants and pubs
- Baffle filters
Common problems we fix in Great Waltham
However long the kitchen cooks each day, the filters see every minute of it. A kitchen that cooks all day loads its filters quickly, so it needs more frequent changes.
What we’re most often called out for:
- Poor airflow through the filters
- Damaged filters letting grease past
- Filter washing that keeps being missed
- Grease left in baffles after washing
For schools such as Chelmer Valley High School, kitchen extract cleaning is normally booked for the holidays, when the canteen is closed.
What your quote should include
- What insurance they carry
- Their accreditations, such as BESCA Vent Hygiene Elite, CHAS or SafeContractor
- Exactly which parts of the system are covered
- Whether VAT is included
The process
The first job on site is protection: floors, worktops and anything near the work are covered. Then we make the system safe and start. The work on site takes well under an hour for most canopies, and we clear up before we go. Visits to a village like Great Waltham are booked in advance, at a time that suits whoever runs the site.
- The filters in each canopy are measured and counted.
- We set the interval with you.
- The dirty set is lifted out.
- Clean filters go in and we check they sit snugly.
- The dirty filters leave with us and the next visit is booked.
Preparing for the visit
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
- Move anything stored near the system
- Let us know about permits to work or site inductions
Get a fixed quote
Photos are the quickest way to a quote: the system from a couple of angles, plus any access panels or hatches. Tell us what kind of site it is and when it’s open, and we can price many jobs without a visit.