Hertfordshire · TR19 inspections and grease testing
TR19 Inspection in Welwyn Garden City
For TR19 inspections, grease thickness testing, pre-clean surveys and post-clean verification in Welwyn Garden City, one call is all it takes: survey, fixed quote, work and sign-off. CHAS and SafeContractor accredited, ISO 9001 and fully insured.
- Sections of duct that can’t be reached
- Cleaning intervals that may not suit the kitchen
- Missing TR19 certificates or history
When to call us in Welwyn Garden City
Not every section of a kitchen extract is easy to get to, so those sections can be skipped time and again. A survey finds the sections that cannot be reached, so the gaps can be closed.
Keep an eye out for these warning signs:
- Ductwork where grease may be over the TR19 limits
- Systems that need surveying before cleaning
- Missing access panels found on survey
- Kitchens whose menu or hours have changed
A kitchen near Welwyn Garden City station that serves breakfast and dinner can run its extract twelve hours or more, which shortens the cleaning interval.
Comparing quotes
- What paperwork you get at the end
- When the next visit should be, and why
- If the quote is a fixed price or an estimate
- What hours they’ll be on site
TR19 inspection in Welwyn Garden City
Many insurers ask for proof that kitchen extract systems are cleaned and inspected to TR19®. Missing records can lead to a claim being reduced or refused. Our TR19 audits give sites in Welwyn Garden City and across Hertfordshire a clear record of the system’s condition. Common call-outs are for systems cleaned on a calendar with no measurements and cleaning intervals that may not suit the kitchen, on deposit thickness tests, pre-clean surveys and access surveys.
Around a town like Welwyn Garden City, extract cleaning normally means a restaurant, pub, takeaway or the kitchen of a school or care home. Each has a canopy, filters, ductwork and a fan to keep clear of grease.
Good records are part of the job. You get a written report with pictures after each visit, listing what was done, anything we couldn’t reach and when the next visit is due. Keep it with your fire safety records so it’s to hand when an insurer or inspector asks.
- Place
- Welwyn Garden City (AL7, AL8, AL6)
- Wider area
- Hertfordshire
- Reporting
- Certificate and photo report
- Price
- A fixed quote up front
- Hours
- After hours by arrangement; emergencies any time
- Phone
- 0345 646 2711
- Updated
- 30 October 2026
What the work involves, part by part
Vertical risers
In buildings with several floors, the riser may pass through other tenants’ space, so access is planned in advance.
Canopy and plenum
We look over the canopy, inside and out, with readings where grease collects.
Grease, kitchens and Welwyn Garden City
The FSA’s data shows about 11 pubs and bars and about 4 hotels and guest houses registered in Welwyn Garden City and the streets around it, up to about 1.5 miles out. Breakfasts, bar meals and functions all put grease into the extract wherever they’re cooked. Hertfordshire Fire and Rescue Service covers Welwyn Garden City. Fire and rescue authorities enforce the Fire Safety Order in most non-domestic premises, and in a kitchen that fire risk includes the grease in the extract. Food hygiene inspections in Welwyn Garden City are the job of Welwyn Hatfield council’s environmental health team. A greasy canopy or dripping filters are the sort of thing an inspection can pick up. Our report lists what was cleaned and when, which is useful to have ready.
Volunteers running a hall kitchen near Church Of Saint Francis Of Assisi, or anywhere in Welwyn Garden City, may not know when the extract was last cleaned, and a grease test settles it. School kitchens, at schools like Peartree Primary School for example, are typically cleaned in the holidays so no lunches are lost.
Welwyn Garden City is in Hertfordshire. Across the AL7 area, we can carry out TR19 inspection at your premises. Our area takes in 381 places across Hertfordshire, from busy centres to quieter spots. You can also see our page for London, about 21 miles away.
Work in AL7, AL8 and AL6 follows the same survey, fixed quote and written report as everywhere else we cover. Whether your site is on Church Road, Station Road and Lynmouth Road or anywhere close by, we can help. Main roads around Welwyn Garden City include the B195 and A1000, which makes travel easy for evening and night visits. Other places close to Welwyn Garden City include Hatfield Hyde (1 mile south), Letty Green (3 miles south-east), West End (3 miles south), Essendon (3 miles south-east) and Staines Green (3 miles east). Within a short drive, we also cover Watford (13 miles south-west), Hemel Hempstead (12 miles west), Stevenage (8 miles north), St Albans (7 miles south-west), Harpenden (7 miles west) and Hitchin (11 miles north). Welwyn Garden City is among the bigger places we cover in Hertfordshire for TR19 inspection.
Local landmarks in Welwyn Garden City
Locally, jobs take us to businesses close to Stanborough Park, Sir Frederic Osborn School and The Bakehouse pub. Welwyn Garden City’s nearest station is Welwyn Garden City station, roughly 0.5 miles west of the centre. Well-known places in the area include The Bunker at Hatfield Police Station (2.9 miles south-west) and Queen Elizabeth II Hospital (1.1 miles south). For a walk, there’s Lemsford Springs.
How the visit works
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. The visit takes a morning or less for one kitchen, more where there are several systems. Three things shape a visit in Welwyn Garden City: when you’re closed, where we can park and how we get to the system.
- First we book a time that won’t disrupt cooking.
- The system is checked from canopy to discharge.
- Grease readings are taken at set points using WFTT or DTT.
- We photograph the test points and record any sections we can’t reach.
- The findings go into a report with readings, photos and a recommended next clean.
Before we arrive
- Dig out any earlier paperwork for the system
- Make sure equipment near the work can be switched off and left to cool
- Arrange a key holder or contact on site
Getting a quote
We do not publish a price list, because every site is different. 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 us.
Related advice
Managing agents and facilities teams in Welwyn Garden City
From a single site to a large estate, the standard is the same: a survey first, a fixed quote, the work timed around the site and a report with photos.
We work for landlords, managing agents and facilities managers as well as the people running the site. Shared systems, like a riser serving several units, need a clear agreement on who books the work, and we’re happy to quote for all of it.
Why deal with it now?
If a kitchen in Welwyn Garden City has been cleaned on the same calendar for years, there’s no way to know if that interval is right without measuring. Measured readings let a competent person set the interval. Before an inspection or an insurer’s visit in Welwyn Garden City, it helps to have up-to-date records.
What you pay reflects the actual work. That’s why we survey first, from photos or on site, and why the quote is fixed before we start.
Why Welwyn Garden City businesses choose us
- Ventilation hygiene specialists since 2009
- Work around your opening hours, with 24/7 emergency cover
- Accredited under CHAS and SafeContractor, with ISO 9001
- We diagnose before we treat
Questions from Welwyn Garden City
Can a school canteen extract in Welwyn Garden City be done out of term time?
Yes. Half-terms and the summer break are the natural time for school work. There are about 21 schools, colleges and universities on the FSA’s food hygiene register within about 1.5 miles of Welwyn Garden City. Send us your term dates when you call us on 0345 646 2711 or email us, and we will fit the work in.
Which council inspects kitchens in Welwyn Garden City?
Food hygiene inspections in Welwyn Garden City are carried out by Welwyn Hatfield council. Ratings are published by the Food Standards Agency, so a clean extract and good records are worth keeping up.
Do you work out of hours?
Yes. Evenings, nights and weekends are normal working hours for us, so the site doesn’t lose a service.
Do we have to follow TR19 by law?
No. TR19® is a specification, not a statute. In practice, an insurer can refuse or reduce a claim without proof of TR19 cleaning, so it matters in practice.
What do you do to protect the area?
We start with protection: sheeting over floors, worktops and anything close to the work. The area is left tidy, with our waste taken away.
What is TR19?
TR19® is BESA’s specification for ventilation hygiene. TR19® Grease, a standalone specification since 2019, covers grease in kitchen extract systems, while TR19® Air covers other supply and extract ductwork.
What do the grease readings need to be?
TR19® Grease says the mean shouldn’t exceed 200 microns between cleans, and anywhere at 500 microns or more needs spot cleaning straight away.
Is a quote from photos possible?
In many cases, yes. With good photos, the site type and your last report, we can price many jobs. Where we can’t see enough, we arrange a survey.
When something else is needed
An honest diagnosis matters more to us than a booking, so here’s what this work can’t put right:
- Heavy deposits found on test, which still need cleaning
- The legal duty, which stays with the responsible person
- Fan breakdowns, which need a repair visit
If in doubt, give us a ring on 0345 646 2711, or send details by email and we will say what we think.
Where we work
- Pre-clean surveys
- Deposit thickness tests
- Access surveys
- Wet film thickness tests
- Insurer audits
- Post-clean checks
What affects the quote in Welwyn Garden City
Some jobs are bigger than they look, and some smaller. The main factors:
- Access, including roofs, risers and ceiling voids
- Parking and loading at the site
- The scale of the work
- One-off work versus a regular cycle
We do not list prices on the website, because the cost depends on the site in front of us. Call for a fixed quote, and we’ll explain what it covers.
Asking for a quote
What to send for a quote:
- Photos showing the whole system and its surroundings
- When the site is open and when it’s quiet
- Any access panels or hatches you can see
- Any symptoms, from odd noises to smells or leaks
For TR19 inspection in Welwyn Garden City, give us a ring on 0345 646 2711, or email photos. Tell us what kind of premises it is and when it’s open, plus pictures or the previous report if they’re to hand. A fixed quote typically follows within one working day.