Hampshire · TR19 inspections and grease testing
TR19 Inspection in Thedden
Need TR19 inspection in Thedden? We survey first, send you a fixed quote and work around your opening hours, then sign off with a report and pictures.
- Post-clean verification after another contractor’s clean
- Uncertainty over how often to clean
- Surveys needed before quoting a full clean
The process
Everything the job needs comes with us, including protection sheets, the right tools and access kit. You only need to give us clear access and switch off what needs to be off. On site, the work takes a morning or less for one kitchen, more where there are several systems. Somewhere like Thedden, lanes, gates and parking are worth mentioning in advance.
- First we book a time that will not disrupt cooking.
- Every part of the system is examined, end to end.
- We take WFTT or DTT readings at set points along the system.
- Each test point and any access problems are photographed.
- You get a report with readings, pictures and recommendations.
Preparing for the visit
- Mention any locked doors, roof access or ceiling voids
- Tell us about site rules, permits or sign-in
- Clear loose items from the work area
Ask for a quote
Quotes are quick. Send a few details and pictures, and we usually reply with a fixed quote within one working day. If we need to see the system first, we book a survey around your hours.
Read more
TR19 inspection for kitchens and businesses in Thedden
Insurance policies often require evidence of TR19® cleaning and inspection. Without it, a claim can be refused or reduced. A TR19 audit sets out the system’s condition, with readings and pictures, for sites in Thedden and the rest of Hampshire. The work covers pre-clean surveys, post-clean checks and deposit thickness tests, and common reasons people get in touch are insurance renewals needing proof of TR19 cleaning and systems cleaned on a calendar with no measurements.
Work in a small place like Thedden 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.
It’s worth checking any contractor’s accreditations. Ours are BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease, plus CHAS, SafeContractor and ISO 9001, and we’re fully insured.
- Location
- Thedden (GU34)
- Wider area
- Hampshire
- Reporting
- TR19® certificate and photo report
- Quotes
- A fixed price before any work starts
- Hours
- Out of hours as standard, 24/7 emergency line
- Call
- 0345 646 2711
- Last updated
- 30 October 2026

Also in Thedden
When it’s something else
We’d rather tell you now than book work that won’t help, so these are the things it will not cover:
- Mechanical faults in the extract
- The legal duty, which stays with the responsible person
- Removing the grease, which is a separate clean
If you’re not sure, just call 0345 646 2711 or send us an email and we’ll give you a straight answer before you book.
Where we work
- Wet film thickness tests
- Insurer audits
- Pre-clean surveys
- Access surveys
- Post-clean checks
- Deposit thickness tests
Why it’s worth doing now in Thedden
Do not wait for an EHO visit or insurance renewal to find gaps in your extract records. A recent inspection report means you’re ready when asked. A planned visit to Thedden is easier to arrange than an emergency callout.
When the work has to happen, how we reach it and how big the site is can all change the price. We take each of them into account, and the price is fixed before we start.
What you get with us
- One number for every site across the South East and London
- Fixed quotes, typically within one working day
- Every job surveyed first
- Work around your opening hours, with 24/7 emergency cover
Thedden: your questions answered
Do you work at weekends in Thedden?
Yes, out-of-hours work is a big part of what we do. Your customers, staff or residents in Thedden needn’t be disturbed. When you call 0345 646 2711 or use the quote form, mention when the site is quiet.
Which environmental health team covers Thedden?
That is East Hampshire council, whose environmental health officers carry out food hygiene inspections in Thedden. Have your latest TR19® certificate and photo report to hand, as an officer may ask how the extract is maintained.
When should we have our next grease test?
Enough to be sure grease stays within the TR19® Grease figures between cleans. If readings rise, the interval should shorten.
Is Thedden in your area?
Yes. Thedden is part of the area we cover, as part of our area across London and the South East.
Do you have a 24/7 line?
Yes, any time. If something urgent happens, like a fan failing or damage after a fire, call our 24/7 line and we’ll talk you through the next steps.
Why survey before a clean?
We look at the system from canopy to discharge, take grease readings and check access. From it, we plan the clean and quote a fixed price.
Are you accredited?
Duct Doctor is a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we’re fully insured.
How much does TR19 inspection cost in Thedden?
The cost depends on the size of the system, its condition, access and timing. Ask us for a fixed quote and we will normally reply within one working day.
What affects the quote in Thedden
A fixed price needs a few facts first. We check:
- How big the system is
- The condition we find in the survey
- The number of sites or systems
- Whether it’s a one-off visit or part of a schedule
No two sites are the same, so we price each one individually. The size of the job, how we reach it, its condition and the working hours all make a difference.
What to send for a quote
To speed up the quote, please include:
- Photos showing the whole system and its surroundings
- The postcode and the type of business
- When the site is open and when it’s quiet
- Any previous report or certificate
To help 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 send details by email.
Managing agents and facilities teams in Thedden
Landlords, managing agents and facilities managers book us, not only the businesses that use the systems. Where a system serves more than one tenant, such as a shared riser, it helps to agree who arranges the work, and we can quote for the whole system.
Records are where multi-site compliance often slips. Each visit produces a dated report with pictures, ready to show insurers, fire officers or EHOs.
Grease, kitchens and Thedden
Thedden is about 47 miles from central London, well within the area we cover across London and the South East. A survey and a fixed quote come first, then the visit at a time that suits you. Fire safety in Thedden falls to Hampshire and Isle of Wight 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.
Term dates shape school work: for a school like Amery Hill School, an extract clean fits neatly into a half-term or summer break. If your kitchen is in a listed or historic building, like the houses around Thedden (Bentworth Hall is about 1 mile west), fitting access panels needs care. Volunteers running a hall kitchen near St Peter's, or anywhere in Thedden, may not know when the extract was last cleaned, and a grease test settles it.
Thedden is about 2 miles west of Alton, in Hampshire. Every kind of commercial site in Thedden, we can take on TR19 inspection. Visits can be booked for evenings, overnight or weekends so the site keeps running. Thedden is one of 683 places in Hampshire we cover for TR19 inspection. For sites nearby, see our Reading page (21 miles or so).
TR19 inspection in GU34 follows the same survey, fixed quote and written report as everywhere else we cover. Other places close to Thedden include Beech (1 mile south-east), Wivelrod (1 mile south-west), Bentworth (1 mile north-west), Holt End (1 mile west) and New Copse (2 miles west). Further out, we also cover Basingstoke (9 miles north), Winchester (14 miles south-west), Farnborough (15 miles north-east), Fleet (12 miles north-east), Aldershot (13 miles north-east) and Petersfield (10 miles south).
Near you in Thedden
Thedden’s nearest station is Alton station, roughly 2.6 miles east. A little further out are Alton Community Hospital (1.6 miles east) and Barton Castle (3.9 miles west). For a walk, there’s King's Hill.
How the job changes from site to site
Canopy and plenum
We look over the canopy, inside and out, with readings where grease collects.
Schools, hospitals and care homes
In healthcare and care settings, kitchens may run from early until late. Testing shows if the cleaning interval keeps pace.
What staff can safely do
Logging matters as much as cleaning. A dated log of in-house cleaning and checks shows an inspector that the system is looked after between visits, alongside our reports.
Good housekeeping makes our visits easier, not unnecessary. Regular in-house cleaning slows the build-up, but the parts you cannot see still need a specialist at the right interval.