Surrey · TR19 inspections and grease testing
Sandhills TR19 inspection
Specialist TR19 inspection for Sandhills: diagnosis first, then a fixed quote, the work and a report with pictures. Call for a fixed quote.
- Parts of the system left out of past cleans
- Kitchen extract systems with no recent grease readings
- Systems that need surveying before cleaning
Signs you need TR19 inspection in Sandhills
Looking at a canopy tells you little about what’s in the duct. Clean filters can hide a heavy layer behind them, so readings are the reliable guide.
It’s time to book a visit if you see:
- Post-clean verification after another contractor’s clean
- Systems that need surveying before cleaning
- An insurer’s request for a TR19 audit
- Extracts that have never been grease tested
For schools such as King Edward's School Witley, kitchen extract cleaning is normally booked for the holidays, when the canteen is closed.
Before you book anyone
- How VAT is shown on the quote
- Proof of insurance
- Whether a survey comes first
- When they can work, and whether that is outside your opening hours
TR19 inspection for kitchens and businesses in Sandhills
BESA sets minimum cleaning intervals by daily use: every 3 months for heavy use of 12 to 16 hours a day, every 6 months for moderate use of 6 to 12 hours, and every 12 months for light use of 2 to 6 hours. Those are minimums, and grease readings help set the real interval. The work covers insurer audits, deposit thickness tests and pre-clean surveys, and common reasons people get in touch are extracts that may be over the 200 micron mean and checking the result of a recent clean.
Work in a small place like Sandhills starts with a call to agree access and timings, and the clean covers the whole system, as it would anywhere: canopy to discharge, then a TR19® certificate and a photo report.
Duct Doctor has been trading since 2009, and we are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 are in place too, and we’re fully insured.
- Where
- Sandhills (GU8)
- Wider area
- Surrey
- Paperwork
- Certificate plus before-and-after pictures
- Price
- Fixed quote, normally within a working day
- When we work
- Nights, weekends or holidays to suit you
- Phone
- 0345 646 2711
- Updated
- 30 October 2026
What your team can do, and what needs us
Staff cleaning doesn’t replace a specialist visit; it supports it. 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 canopies, washing grease filters and recording it in a log. Inside the ducts, risers and fan is specialist work, and that’s where we come in.
What a clean will not put right
Before booking, it helps to know what’s not included:
- Hidden runs that need access panels first
- Heavy deposits found on test, which still need cleaning
- Design faults in the extract system
Not sure which it is? You can phone us on 0345 646 2711 or send us an email and we’ll tell you honestly before you book.
What we work on in Sandhills
- Pre-clean surveys
- Insurer audits
- Access surveys
- Post-clean checks
- Wet film thickness tests
- Deposit thickness tests
TR19 inspection around Sandhills
Surrey Fire and Rescue Service covers Sandhills. The Fire Safety Order puts the duty on whoever runs a kitchen to control its fire risk, and a greasy duct is fuel. At about 35 miles from central London, Sandhills sits well inside the area we cover. A survey and a fixed quote come first, then the visit at a time that suits you.
Where a hall near Church of All Saints, or anywhere in Sandhills, hosts lunch clubs or events, its extract gathers grease just as a café’s does. A kitchen near Witley station that serves breakfast and dinner can run its extract twelve hours or more, which shortens the cleaning interval.
Sandhills is about 8 miles south-east of Farnham, in Surrey. Across the GU8 area, we can carry out TR19 inspection at your premises. Sandhills is one of 395 towns, villages and districts in Surrey where we work for commercial clients. You can also see our page for Guildford, about 9 miles away.
Postcode districts we cover here for TR19 inspection: GU8. Local streets include Brook Road, Sebastopol Lane and Hatch Lane, and we cover them all for TR19 inspection. If your site is just outside Sandhills, we cover Brook (1 mile west), Wormley (1 mile east), Hambledon (1 mile east), Bowlhead Green (1 mile west) and Witley (1 mile north). Larger places within reach include Guildford (9 miles north-east), Woking (13 miles north), Camberley (14 miles north), Farnham (8 miles north-west), Frimley (13 miles north) and Haslemere (4 miles south-west).
Near you in Sandhills
Around Sandhills, our work takes us to kitchens and buildings near Rodborough, Dog And Pheasant Public House and Witley CofE Controlled Infant School and the streets around them. For rail, the closest station is Witley station, about 0.5 miles east of the centre. Other landmarks nearby include Milford Hospital (2.7 miles north-east). Green spaces nearby include Hydon's Ball and Farncombe Wood.
Fixed quotes for TR19 inspection in Sandhills
There’s no set price list, because sites vary so much. What we look at:
- Parking and loading at the site
- The condition of the system
- Whether several sites go on one quote
- Whether it’s a one-off visit or part of a schedule
What you pay depends on the size of the system, what state it’s in and how easy it is to reach. You get a fixed price before we start, so there are no surprises.
Asking for a quote
A few details help us quote accurately. With your enquiry, please include:
- Close-ups of filters, grilles, hatches or access panels
- Your opening hours and when the area is out of use
- Where the plant sits or the system leaves the building, such as a roof or outside wall
- Any previous report or certificate
For a fixed quote, give us a ring on 0345 646 2711 or drop us a line and tell us the type of site, your opening hours and roughly what the system looks like. Photos and the last report, if you have one, make the quote quicker. You’ll usually have a quote within one working day.
Sandhills questions
Who is the fire and rescue service for Sandhills?
Surrey Fire and Rescue Service is the fire and rescue service for Sandhills. Records of extract cleaning are a sensible thing to have ready if a fire safety officer carries out an audit.
Can you work in Sandhills outside opening hours?
Yes, nights and weekends are routine for us. The work in Sandhills can fit around your hours. When you call 0345 646 2711 or use the quote form, mention when the site is quiet.
What does TR19 inspection cost?
The cost depends on the size of the system, its condition, access and timing. Call for a fixed quote, normally ready within one working day.
Which sectors do you work in?
Commercial premises of every kind: kitchens, offices, schools, healthcare, retail, leisure and food production. We fit the work around how the site operates.
What is post-clean verification?
Verification means repeat readings and pictures once the clean is done. The report flags anything missed.
What grease levels does TR19 allow?
The TR19® Grease figures are a mean of 200 microns or less between cleans, and immediate spot cleaning wherever a reading hits 500 microns. We show your readings against those figures.
Can you come out in an emergency?
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.
How often should grease be tested?
Often enough to know the mean stays under 200 microns between cleans. If readings rise, the interval should shorten.
What we do, step by step
When we arrive, we check the system against the survey or the pictures you sent. If anything is different, we talk it through with the person on site before carrying on. After that, the work takes a morning or less for one kitchen, more where there are several systems. Photos of the system and how to reach it help us plan a visit to Sandhills.
- Post-clean verification is booked once the clean is done.
- We open the access points used on the clean.
- We repeat the WFTT or DTT readings.
- Photos are taken to show the condition after the clean.
- We report the findings and flag any areas that need more work.
Getting ready for the visit
- Move anything stored near the system
- Name a contact who can let us in at the agreed time
- Agree a time when the area can be out of use
Getting a quote
To help us quote: the address, the type of site and when it’s open, pictures of the system and any previous report or certificate. Once you have those, call 0345 646 2711 or email us.
Related advice
Different parts, different methods
Vertical risers
In buildings with several floors, the riser may pass through other tenants’ space, so access is planned in advance.
Canopy and plenum
Filters can look fine while the plenum behind them is heavily coated. So we measure behind the filters, not just in front.
Nearby places to Sandhills
Other services in Sandhills
Leave it or put it right?
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. If the system at a site near Sandhills fails, there may be nowhere nearby to move to.
What you pay reflects the actual work. That is why every job is surveyed first, and why the quote is fixed before work begins.
What you get with us
- Out-of-hours work and a 24/7 emergency line
- One contact for all your sites in London and the South East
- Every job surveyed first
- A fixed price before any work starts
Take a look at what affects the cost or our accreditations.