Hampshire · TR19 inspections and grease testing
TR19 inspections and grease testing in Denvilles, Hampshire
TR19 inspection in Denvilles from ventilation hygiene specialists trading since 2009. Evenings, overnight and weekends, plus a 24/7 emergency line.
- Extracts that have never been grease tested
- Missing access panels found on survey
- Heavy grease suspected in the plenum or ducts
How we handle TR19 inspection in Denvilles
Post-clean verification is a check carried out once the cleaning is done, with fresh grease readings, photos and a look at the areas that were cleaned. It shows whether the system was left in the condition the paperwork describes. If you have systems that need surveying before cleaning and cleaning intervals that may not suit the kitchen, we can help.
Kitchens around a place like Denvilles 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.
Think of the report as the system’s health record: a dated account with photos of everything we did. Grease extract cleans are also certificated to TR19® Grease through the BESCA VHE portal, ready for your insurer.
- Location
- Denvilles (PO9, PO10)
- Wider area
- Hampshire
- Reporting
- TR19® certificate and photo report
- Quotes
- A fixed price before any work starts
- Working hours
- When your site is closed, plus a 24/7 line
- Telephone
- 0345 646 2711
- Checked
- 30 October 2026
Fixed quotes for TR19 inspection in Denvilles
Sites vary more than people expect. The main factors:
- The number of sites or systems
- How big the system is
- When the work can happen, such as evenings, overnight or weekends
- The condition we find in the survey
Whatever the type of site, the quote works the same way: the size of the job, access, condition and working hours. Ask for a fixed quote and we will go through it with you.
What to send for a quote
To help us quote quickly, please include:
- Any access panels or hatches you can see
- Wide pictures of the system and the area around it
- How we’d reach plant on a roof or in a plant room
- When the site is open and when it’s quiet
Getting a quote does not take long. Call or email with a few details and you’ll normally have a fixed price within one working day. Where a survey is needed, we arrange a time that suits the site.
Places near Denvilles
Also in Denvilles
Why deal with it now?
If a kitchen in Denvilles has been cleaned on the same calendar for years, there’s no way to know if that interval is right without measuring. Testing gives you the evidence to set it properly. A quieter site near Denvilles still needs its system looked after.
Every site is different, so each one gets its own fixed quote. The size of the job, how we reach it, its condition and the working hours all play a part.
What you get with us
- CHAS, SafeContractor and ISO 9001
- Each visit written up, with pictures
- Ventilation hygiene specialists since 2009
- Fixed quotes from a survey or photos
Take a look at what affects the cost and our accreditations and certificates.
When it’s something else
We’d rather tell you now than book work that won’t help, so here are the limits:
- Installation problems, which fall under design guidance such as DW172
- Parts of the duct nobody can reach yet
- Fire safety duties beyond the extract system
Not sure which it is? You can ring 0345 646 2711, or send details by email and we’ll tell you honestly before you book.
What we work on in Denvilles
- Insurer audits
- Post-clean checks
- Pre-clean surveys
- Wet film thickness tests
- Access surveys
- Deposit thickness tests
Signs you need TR19 inspection in Denvilles
Grease in a duct is flammable fuel. Flames from the range can be pulled into the canopy and travel through the ducts to other parts of the building. Knowing how much there is lets you act before it becomes a hazard.
Look out for any of the following:
- Kitchens taken over with no cleaning records
- Extracts that may be over the 200 micron mean
- Systems cleaned on a calendar with no measurements
- Uncertainty over how often to clean
A hospital like Havant War Memorial Hospital, about 1 mile west, is the kind of site where a kitchen may cook for patients, staff and visitors all day.
What your quote should include
- What records you’ll receive afterwards
- When the next visit should be, and why
- Proof of accreditation you can verify
- What hours they’ll be on site
What happens on the day
There are three stages on the day: set-up, the treatment itself and the sign-off. Set-up means sheeting and making equipment safe, and the sign-off is a written report with photos. Most of the time goes on the work itself, which takes a couple of hours for a typical kitchen extract system. For a site near Denvilles, the work is booked around your opening hours, evenings and weekends included.
- First we book a time that won’t 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.
Preparing for the visit
- Plan for cooking equipment or plant to be off before we arrive
- Let us know about parking and loading
- Name a contact who can let us in at the agreed time
Ask for a quote
There’s no standard price list, because no two systems are the same. Instead, we look at your site first, from photos or a survey, and then give you a fixed quote. To get going, give us a ring on 0345 646 2711, or email photos.
Related advice
Part by part
Horizontal duct runs
If a run has no access panel, we note it so it can be fixed before the clean.
Restaurants, pubs and hotels
A kitchen running from breakfast to late service builds grease quickly. Regular testing shows whether the cleaning interval keeps up.
Looking after it afterwards
A little care between visits keeps the system in better shape. We recommend:
- Report grease dripping from the canopy
- Keep access panels clear and unpainted
- Diary the next grease test and clean
- Never cook with filters missing
Keep the verification report next to the certificate it relates to. Together they show the system was cleaned and checked.
Clean, correctly fitted filters stop more grease reaching the duct. Gaps around filters let grease get past them.
Kitchen extracts in Denvilles
Denvilles lies within about 1 mile of the sea. Salt air speeds up corrosion of roof-level fans, discharge cowls and their fixings. The FSA’s data shows about 22 bars, pubs and nightclubs and about 4 hotels and guest houses registered in Denvilles and the streets around it, up to about 1.5 miles out. A pub or hotel kitchen that cooks every day builds up grease in its extract like any other. Hampshire and Isle of Wight Fire and Rescue Service covers Denvilles. In most workplaces, including commercial kitchens, it’s the fire and rescue authority that enforces the Fire Safety Order.
If you look after a school kitchen, at a school such as Warblington School or anywhere near Denvilles, the holidays are the usual time for a TR19® clean. For kitchens close to Warblington station, where the day often starts early and ends late, the extract can be cleaned overnight.
Denvilles is about 1 mile south-east of Havant, in Hampshire. Whatever kind of site you run in Denvilles, we can take on TR19 inspection. We can work out of hours so the site keeps running. Denvilles is one of 683 places in Hampshire where we work for TR19 inspection. We also work in Portsmouth, around 6 miles away.
Work in PO9 and PO10 follows the same survey, fixed quote and written report as everywhere else we cover. That includes premises on New Lane, Pook Lane and Elder Road and the roads around them. Other places close to Denvilles include Warblington (1 mile south), Havant (1 mile north-west), Emsworth (1 mile east), Langstone (1 mile south-west) and Leigh Park (1 mile north-west). Larger places within reach include Gosport (9 miles south-west), Fareham (10 miles west), Horndean (4 miles north-west), Hedge End (15 miles west), Waterlooville (4 miles north-west) and Petersfield (10 miles north).
Landmarks near Denvilles
We work in commercial kitchens and buildings around Six Bells pub, St Albans Church and Fairfield Infant School. Denvilles has its own railway station: Warblington station. Other landmarks nearby include Warblington Castle (0.7 miles south) and Havant War Memorial Hospital (1 mile west). Open spaces near Denvilles include Brook Meadow (Emsworth).
Common questions in Denvilles
Can you get to a site in Denvilles?
Yes, Denvilles is part of our area, however small the site. Just mention lanes, gates or anything else about the site when you book.
Is TR19 inspection any different in a coastal place like Denvilles?
It can. Denvilles is within about 1 mile of the coast, and salt air speeds up corrosion. Corroded fixings and housings are noted on the report so they can be dealt with.
At what point does grease need cleaning?
Between cleans, the mean should stay at 200 microns or below, with 500 microns or more anywhere needing immediate spot cleaning.
Can you come out in an emergency?
Yes, day and night, every day of the year. Our office is open from 8am to 6pm on weekdays, with the emergency line covering every other hour.
Do you work out of hours?
Yes. Give us your opening hours with your enquiry and we will plan the visit around them.
Do we have to follow TR19 by law?
No. It’s the benchmark rather than the law. Without TR19 records, an insurance claim can be reduced or refused, so following it is the sensible course.
What accreditations do you have?
Duct Doctor is a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we carry full insurance.
Can you price the work without visiting?
Yes, for many jobs. Send wide shots, close-ups of any access panels and anything that worries you, and a fixed quote usually follows within one working day. Some sites still need a visit, and we’ll say so.