Hampshire · TR19 inspections and grease testing
TR19 inspections and grease testing in Four Marks, Hampshire
For TR19 inspection in Four Marks, one call is all it takes, from survey to sign-off. CHAS and SafeContractor accredited, ISO 9001 and fully insured.
- Heavy grease suspected in the plenum or ducts
- Cleaning intervals that may not suit the kitchen
- Systems that need surveying before cleaning
TR19 inspection in Four Marks
Post-clean verification is a check carried out once the cleaning is done, with fresh grease readings, pictures and a look at the areas that were cleaned. It gives you evidence of how the system was actually left. Typical jobs include missing TR19 certificates or history and uncertainty over how often to clean, on pre-clean surveys, post-clean checks and deposit thickness tests.
For a smaller kitchen near Four Marks, a TR19® clean is the same job as anywhere: canopy, filters, plenum, duct, fan and discharge. The visit is booked around your opening hours, and the journey is planned ahead.
Our accreditations include CHAS, SafeContractor and ISO 9001, and we are fully insured. We are also a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we’ve been trading since 2009.
- Location
- Four Marks (GU34)
- Region
- Hampshire
- Paperwork
- TR19® certificate and photo report
- Price
- A fixed quote up front
- Working hours
- Out of hours as standard, 24/7 emergency line
- Call
- 0345 646 2711
- Last updated
- 30 October 2026
FAQs for Four Marks
Do you work at weekends in Four Marks?
Yes, nights and weekends are routine for us. That way a site in Four Marks does not have to lose a day’s trading. Just phone us on 0345 646 2711, or email photos with your opening times and we’ll plan around them.
Which fire authority looks after Four Marks?
Fire safety enforcement in Four Marks is handled by Hampshire and Isle of Wight 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 carry out TR19 audits for insurers?
Yes, for kitchens across the South East and London. Tell us what your insurer has asked for and we’ll set the report out to match.
What is post-clean verification?
A post-clean check records grease readings and photos after the work, whoever did the clean.
What accreditations do you have?
Duct Doctor is a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 are in place too, and we carry full insurance.
What types of premises do you cover?
Any site with a kitchen or a ventilation system to look after, from a single café to a large school. We work with hotels, schools, care homes, offices, retail and leisure sites.
How much does TR19 inspection cost?
The cost depends on the size of the system, its condition, access and timing. Ask us for a fixed quote, normally ready within one working day.
What about areas you can’t get to?
Anything we cannot reach goes on the report, with pictures where possible, and we tell you what would make it reachable, such as extra access panels in ductwork.
Towns and villages near Four Marks
What else we do in Four Marks
What we do, step by step
On the day, we arrive at the time agreed with you, often in the evening, overnight or at the weekend so the site keeps working. Equipment that has to be off is switched off and allowed to cool before we start, and floors and nearby surfaces are sheeted. On site, it takes an hour or two for a single kitchen, longer for a large or complex system. Getting to the system matters more than parking in a place like Four Marks, so let us know how to reach it.
- 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.
- We photograph the test points and record any sections we can’t reach.
- We send a report setting out the readings, pictures and next steps.
Getting ready for the visit
- Make sure someone can let us in and lock up afterwards
- Mention any locked doors, roof access or ceiling voids
- Tell us the best time to work, such as after service or at a weekend
Ask for a quote
Quotes are quick. Send a few details and pictures, and we normally reply with a fixed quote within one working day. If we need to see the system first, we book a survey around your hours.
Related advice
Signs you need TR19 inspection in Four Marks
Grease builds up as cooking vapour cools inside the extract. The thickest layers can sit out of sight in the plenum, at bends and along flat runs.
It’s time to book a visit if you see:
- An insurer’s request for a TR19 audit
- Extracts that have never been grease tested
- Ductwork where grease may be over the TR19 limits
- Surveys needed before quoting a full clean
Healthcare kitchens cannot easily close, so their extracts are cleaned overnight or between meal services; the nearest hospital to Four Marks is Alton Community Hospital, about 3.3 miles north-east.
What your quote should include
- Proof of insurance
- What’s included in the scope, part by part
- Whether a survey comes first
- When the next visit should be, and why
Leave it or put it right?
Surveying first means the clean goes to plan. Access problems are spotted in advance rather than on the night, so the clean covers the whole system. A quieter site near Four Marks still needs its system looked after.
Working hours, access and the scale of the site can all change the price. We take each of them into account and give you a fixed price before work begins.
Why Four Marks businesses choose us
- Evenings, overnight and weekends, plus 24/7 emergency callout
- Every job surveyed first
- Fixed quotes, typically within one working day
- In business since 2009
What TR19 inspection looks like in Four Marks
The fire and rescue service for Four Marks is Hampshire and Isle of Wight Fire and Rescue Service. In most workplaces, including commercial kitchens, it’s the fire and rescue authority that enforces the Fire Safety Order. Four Marks, about 49 miles from central London, is within our usual area. Visits are booked around your hours, evenings and weekends included.
Church and community hall kitchens, near Church of the Good Shepherd or anywhere around Four Marks, are easy to forget, but their extracts collect grease like any other. For schools such as Four Marks Church of England Primary School, kitchen extract cleaning is normally booked for the holidays, when the canteen is closed.
Four Marks is about 4 miles south-west of Alton, in Hampshire. We provide TR19 inspection for commercial premises of every kind in Four Marks and the rest of Hampshire. Our Hampshire coverage runs to 683 places, Four Marks among them. We also work in Southampton, around 20 miles away.
Postcode districts we cover here for TR19 inspection: GU34. Whether your site is on Read's Field, River Close and Chalk Close or a nearby road, we can help. Nearby, we also carry out TR19 inspection in Medstead (1 mile north), Soldridge (1 mile west), South Town (2 miles north-west), New Copse (2 miles north) and Hattingley (2 miles north-west). Within a short drive, we also cover Basingstoke (11 miles north), Winchester (12 miles west), Fleet (15 miles north-east), Horndean (14 miles south), Alton (4 miles north-east) and Petersfield (9 miles south-east).
Landmarks near Four Marks
The nearest railway station is Alton station, roughly 4.6 miles north-east of the centre. Well-known places in the area include Barton Castle (3.5 miles north-west) and Alton Community Hospital (3.3 miles north-east). The countryside around Four Marks includes Red Hill.
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.
For ventilation and air handling systems, in-house care is mostly about checks: keeping grilles clear, noting unusual noise or smells and logging filter changes. The inside of ducts and units needs a specialist.
What affects the quote in Four Marks
A fixed price needs a few facts first. We check:
- When the work can happen, such as evenings, overnight or weekends
- Access, including roofs, risers and ceiling voids
- The number of sites or systems
- One-off work versus a regular cycle
We don’t list prices on the website, because the cost depends on the site in front of us. Call for a fixed quote, and we’ll talk you through it.
Asking for a quote
When you call or email, it’s useful to have:
- How we’d reach plant on a roof or in a plant room
- The times we could work without disrupting the site
- The postcode and the type of business
- Any access panels or hatches you can see
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.
For landlords and multi-site operators
If you look after several sites, we can plan visits across the whole estate and price them together. Each site gets its own report and photos, so each one has its own record.
Multi-site operators often want one contractor and one number. We cover South East England and London, so a run of sites can go into one programme and kept to a regular schedule.
What a clean will not put right
In fairness, some problems need a different fix:
- Hidden runs that need access panels first
- The responsible person’s own fire risk assessment
- Fan breakdowns, which need a repair visit
If in doubt, call 0345 646 2711 or drop us a line and we’ll say what we think before you book.
What the work covers
- Wet film thickness tests
- Deposit thickness tests
- Post-clean checks
- Access surveys
- Pre-clean surveys
- Insurer audits