Hertfordshire · TR19 inspections and grease testing
TR19 inspections in Tyttenhanger
Looking for TR19 inspection in Tyttenhanger? We diagnose first, fix the price and book the work around your hours, finishing with a written report and photos.
- Extracts that may be over the 200 micron mean
- Parts of the system left out of past cleans
- Sites with gaps in their extract records
When it’s something else
To be straight with you, there are a few things this work will not fix:
- Fan breakdowns, which need a repair visit
- Removing the grease, which is a separate clean
- Design faults in the extract system
If you are not sure, just call 0345 646 2711 or drop us a line and we will give you a straight answer before booking.
What the work covers
- Insurer audits
- Post-clean checks
- Deposit thickness tests
- Access surveys
- Wet film thickness tests
- Pre-clean surveys
How we handle TR19 inspection in Tyttenhanger
Not every kitchen fits neatly into a calendar. In a busy kitchen, grease can build faster than the minimum intervals allow for, which is why measurement matters. We give your risk assessment measured figures rather than guesses. The work covers deposit thickness tests, insurer audits and pre-clean surveys, and the jobs we see most are uncertainty over how often to clean and systems cleaned on a calendar with no measurements.
Work in a small place like Tyttenhanger 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.
We’re CHAS and SafeContractor accredited, we hold ISO 9001 and we are fully insured. We are also a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we have been trading since 2009.
- Location
- Tyttenhanger (AL4)
- Wider area
- Hertfordshire
- Reporting
- TR19® certificate and photo report
- Quote
- Fixed quote, usually within a working day
- Working hours
- Out of hours as standard, 24/7 emergency line
- Call
- 0345 646 2711
- Reviewed
- 30 October 2026
Why it’s worth doing now in Tyttenhanger
Sites in Tyttenhanger that have never measured grease can’t tell whether their cleaning interval suits the kitchen. Measured readings let a competent person set the interval. Our emergency line runs 24/7, but a planned visit to Tyttenhanger is calmer for everyone.
The price reflects the work, not guesswork. That is why every job is surveyed first, and why the quote is fixed before work begins.
Why choose Duct Doctor in Tyttenhanger
- Fully insured
- CHAS, SafeContractor and ISO 9001
- In business since 2009
- Fixed quotes from a survey or pictures
Read what affects the cost and our accreditations and certificates.
Questions from Tyttenhanger
Can you work in Tyttenhanger outside opening hours?
Yes, we can come after you close and finish before you open. That way a site in Tyttenhanger doesn’t have to lose a day’s trading. Just give us a ring on 0345 646 2711, or send details by email with your opening times and we will plan around them.
Who enforces fire safety at workplaces in Tyttenhanger?
Fire safety enforcement in Tyttenhanger is handled by Hertfordshire Fire and Rescue Service. It’s worth keeping your fire risk assessment, TR19® certificates and photo reports together, ready to show.
What happens if you can’t reach some of it?
The report shows them clearly. Often the fix is extra access, such as new panels in ductwork, and we can fit those.
How far ahead should we book?
It depends on the time you need and how big the job is. Mention your preferred dates with your enquiry, and for anything urgent, ring our 24/7 emergency line.
How often should grease be tested?
Enough to be sure grease stays within the TR19® Grease figures between cleans. If readings rise, the interval should shorten.
Do you offer emergency callouts?
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.
What is post-clean verification?
A post-clean check records grease readings and photos after the work, whoever did the clean.
Which sectors do you work in?
We work for restaurants, pubs, hotels, schools, colleges, hospitals, care homes, offices and shops, as well as food production and leisure sites.
Tyttenhanger kitchens: local notes
According to Food Standards Agency records, there are about 15 bars, pubs and nightclubs within roughly a mile and a half of the centre of Tyttenhanger. Where they serve hot food, their kitchen extracts need cleaning to TR19® like any restaurant’s. Tyttenhanger is covered by Hertfordshire Fire and Rescue Service. Its fire safety officers can audit commercial kitchens, and grease in the extract is part of a kitchen’s fire risk. It’s St Albans City council that sends environmental health officers to food businesses in Tyttenhanger. They look at how clean the premises and equipment are, and the kitchen extract is part of that. Our report lists what was cleaned and when, which is useful to have ready.
For schools such as Nicholas Breakspear School, kitchen extract cleaning is normally booked for the holidays, when the canteen is closed. Batchwood Hall, about 3.3 miles north-west, is one of the historic houses near Tyttenhanger; if you run event catering at a venue like that, cleans can be booked between functions.
Tyttenhanger is about 2 miles south-east of St Albans, in Hertfordshire. For TR19 inspection in and around Tyttenhanger, please phone us on 0345 646 2711, or send details by email for a fixed quote. Our area covers London and the South East, including Tyttenhanger. Tyttenhanger is one of 381 places in Hertfordshire we cover for commercial clients. For sites nearby, see our London page (19 miles or so).
Every address in AL4 is covered for TR19 inspection, from busy streets to back roads. Whether your site is on Highfield Lane and Tyttenhanger Green or anywhere close by, our technicians can take on the work. Nearby, we also carry out TR19 inspection in London Colney (1 mile south), Sleapshyde (1 mile north-east), Smallford (2 miles north-east), Broad Colney (2 miles south) and Colney Heath (2 miles east). Further out, we also cover Watford (7 miles south-west), Hemel Hempstead (7 miles west), Stevenage (13 miles north), Welwyn Garden City (6 miles north-east), Harpenden (6 miles north-west) and Hitchin (15 miles north).
What’s near Tyttenhanger
Locally, jobs take us to businesses close to The Plough pub, Highfield Park and Windermere Primary School and the streets around them. The nearest railway station is St Albans station, about 1.7 miles north-west of the centre. A little further out are Hill End Hospital (0.9 miles north-west) and St Albans Musical Museum (1.9 miles north-west). The countryside around Tyttenhanger includes Colney Heath Local Nature Reserve and Verulamium Lake.
For landlords and multi-site operators
For anyone managing more than one site, we can schedule visits across all of them on one quote. 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 work across London and the South East, so visits at different addresses can be planned together and kept on a regular cycle.
Also near Tyttenhanger
Also in Tyttenhanger
How it works
At the end of the visit, someone from your team can look over the work with us. We point out anything that couldn’t be reached or needs a follow-up, and it goes on the report too. The visit takes a couple of hours for a typical kitchen extract system. Somewhere like Tyttenhanger, 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.
- Grease readings are taken at set points using WFTT or DTT.
- Photos are taken at each point, and access gaps noted.
- The findings go into a report with readings, pictures and a recommended next clean.
Before we arrive
- Make sure someone can let us in and lock up afterwards
- Move anything stored near the system
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
Get a fixed quote
We don’t publish a price list, because no two systems are the same. Instead, we look at your site first, from pictures or a survey, and then give you a fixed quote. To get going, ring 0345 646 2711 or send us an email.
Read more
Do you need TR19 inspection in Tyttenhanger?
When a site in Tyttenhanger changes owner or cleaning contractor, the records do not always follow. Without them, nobody knows how much grease is in the system or when it was last cleaned.
It’s time to book a visit if you see:
- Insurers asking for TR19 evidence
- Kitchen extract systems with no recent grease readings
- Missing access panels found on survey
- Systems that need surveying before cleaning
Church and community hall kitchens, near Church of St Mark or anywhere around Tyttenhanger, are easy to forget, but their extracts collect grease like any other.
Questions to ask before booking
- If they look at the system before pricing
- Whether they recommend a next date
- What insurance they carry
- Proof of accreditation you can verify
Part by part
Restaurants, pubs and hotels
A kitchen running from breakfast to late service builds grease quickly. Regular testing shows whether the cleaning interval keeps up.
Schools, hospitals and care homes
Inspections are planned around mealtimes and holidays to avoid disruption.
What affects the quote in Tyttenhanger
Before we fix a price, we need to know a few things. We look at:
- What state the system is in
- Working hours and out-of-hours timing
- Site requirements such as sign-in and permits
- One-off work versus a regular cycle
Combining work into one visit or one programme often makes better use of the time. Tell us about everything you’d like looked at and we’ll price it together.
What to send for a quote
To help us quote quickly, please include:
- Your last certificate, test record or report
- The site address and the type of premises
- A few general shots of the system
- The times we could work without disrupting the site
Every quote begins with a look at the system, from your photos and details or, where that is not enough, a survey on site. Then we send a fixed price, before work begins.