Hertfordshire · Ductwork cleaning

Ductwork cleaning in Graveley, Hertfordshire

Our technicians work in Graveley on ductwork cleaning. Fixed quotes, work around your opening hours and photo reports on every job.

  • Readings above 200 microns from a grease thickness test
  • Fat dripping from the ductwork
  • Thick crusts of old grease along the duct

Ductwork cleaning in Graveley

Ductwork cleaning in Graveley, done properly

Duct cleaning is the hardest part of an extract clean, and the part most often skipped. Sections with no way in can go uncleaned for years. Each section we can reach is cleaned, and any we can’t is written down, so you know exactly where you stand. Common call-outs are for a rancid smell from the extract duct and duct runs that can’t be reached, on horizontal duct runs, bends and junctions and access panels.

In a village or hamlet like Graveley, the kitchens that need extract cleaning are typically a pub, a school, a care home or a hall kitchen, wherever there is one. Every one of them still needs its extract kept clear of grease, whatever the size of the place.

Our accreditations include CHAS, SafeContractor and ISO 9001, and we’re fully insured. We’re also a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, trading since 2009.

Where
Graveley (SG4)
Wider area
Hertfordshire
Reporting
TR19® certificate and photo report
Price
Fixed quote, normally within a working day
Hours
Nights, weekends or holidays to suit you
Call
0345 646 2711
Updated
30 October 2026
The Duct Doctor team standing beside their branded white and blue vans

Between visits

Think of this as the after-treatment advice, in brief:

  • Flag drips from the duct straight away
  • Keep the fan on while anything is cooking
  • Keep access panels clear of stored items
  • File each certificate and photo report in the maintenance log

Every panel we open is refitted when we finish, and the surrounding area is left clean. Waste grease and water are taken away.

Extra access panels mean more of the duct gets cleaned each time. Grease you can reach is grease that gets removed.

When something else is needed

We won’t sell you work that doesn’t address the problem, so these are the things it will not cover:

  • Fire dampers that do not close (they need testing and remedials)
  • Undersized or badly laid-out ducts
  • Parts of the duct with no way in

If you are not sure, just ring 0345 646 2711, or email photos and we will give you a straight answer before booking.

What we work on in Graveley

  • Access panels
  • Bends and junctions
  • Attenuators
  • Horizontal duct runs
  • Multi-storey ducts
  • Vertical risers

Staff cleaning versus specialist work

Staff cleaning and specialist work aren’t the same thing. Wiping filters daily and washing them weekly keeps the visible parts in order, but grease that has passed the filters is out of reach. Reaching it takes a specialist with the right equipment.

For ventilation and air handling systems, in-house care is mostly about checks: clear grilles, a log of filter changes and reporting anything odd. The inside of ducts and units needs a specialist.

What we do, step by step

The visit has three parts: getting the area ready, doing the work and signing it off. Getting ready means protecting surfaces and switching off what needs to be off, and the sign-off is a written report with photos. Most of the time goes on the work itself, which takes a few hours for a short run, longer for long runs and tall risers. Pictures of the system and its access let us plan the work in Graveley before we set off.

  1. The duct route is surveyed and every access point found.
  2. We take grease readings along the route.
  3. Once the kitchen has closed, we protect the area and open the panels.
  4. Thick grease is scraped out, then the runs and risers are degreased.
  5. We close up, re-test, photograph and record anything out of reach.

How to prepare

  • Move anything stored near the system
  • Tell us about site rules, permits or sign-in
  • Let us know about parking and loading

How to get a quote

Here’s what helps us quote: the address, the type of site and when it’s open, pictures of the system and any previous report or certificate. Then phone us on 0345 646 2711 or email us.

Get a price

Read more

How the job changes from site to site

Multi-storey and shared buildings

A fire in a duct in a shared building can affect far more than one kitchen, which makes keeping it clean all the more important. Your certificate and report give building managers the record they need.

Horizontal duct runs

Horizontal runs carry the extract along ceilings and through voids. Grease drops out of the slowing air along them, so each section is cleaned through its access panels.

Graveley questions

Which environmental health team covers Graveley?

That is North Hertfordshire council, whose environmental health officers carry out food hygiene inspections in Graveley. An officer may look up into the canopy, so clean filters on the day and a recent certificate on file both help.

Can a school canteen extract in Graveley be done out of term time?

Yes, holiday work suits schools best. There are about 8 schools, colleges and universities on the FSA’s food hygiene register within about 1.5 miles of Graveley. You can call 0345 646 2711 or use the quote form with the dates the site is empty.

What do you do to protect the area?

We cover floors and nearby surfaces with sheeting before work begins, and waste is contained as we go. At the end, the area is cleaned down.

Do you offer emergency callouts?

Yes, any time. If something urgent happens, like a fan failing or damage after a fire, call our 24/7 line, and we’ll advise on what to do next.

Will the duct clean disrupt the kitchen?

When the kitchen is closed. Long ducts can be split across visits, with the kitchen ready to cook each morning.

What if parts of the system cannot be reached?

Anything we cannot reach goes on the report, with a note of where it is, and we tell you what would make it reachable, such as extra access panels in ductwork.

What accreditations do you have?

CHAS, SafeContractor, ISO 9001 and BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease. We’re fully insured and have been trading since 2009.

Can you set up regular visits?

Yes, of course. Tell us what you have and how it’s used, and we’ll suggest a schedule and quote for it.

Why act early in Graveley

TR19® is not law, but the duty to manage fire risk is. The Fire Safety Order 2005 makes the responsible person assess and reduce fire risk, and grease in the duct is part of that. If the system at a site near Graveley fails, there may be nowhere nearby to move to.

Leaving it longer rarely makes the work cheaper. Problems in a system tend to grow, and a neglected system can mean more work. If you are unsure, give us a ring on 0345 646 2711, or email photos for straight advice and a fixed quote.

Why us?

  • A single point of contact for sites across the South East and London
  • Fixed quotes, typically within one working day
  • BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
  • Work around your opening hours, with 24/7 emergency cover

Take a look at our cost guide and our accreditations.

What affects the quote in Graveley

The price is fixed before any work begins. It takes into account:

  • How big the system is
  • The number of sites or systems
  • Where the site is and how we reach it
  • Working hours and out-of-hours timing

The cost depends on how big the system is, the condition it’s in and how easy it is to reach. We give you a fixed price before work begins, so you know where you stand.

Helping us quote

Photos let us diagnose from a distance. Try to include:

  • A few general shots of the system
  • Any symptoms, from odd noises to smells or leaks
  • The paperwork from the last visit, if you have it
  • Your opening hours and when the area is out of use

Quotes are quick. Send a few details and pictures, and we typically reply with a fixed quote within one working day. If we need to see the system first, we book a survey around your hours.

What ductwork cleaning looks like in Graveley

There are about 8 restaurants, cafés and canteens and about 3 takeaways and sandwich shops within 1.5 miles or so of the middle of Graveley, according to the Food Standards Agency’s register. Behind every canopy among them is a run of ductwork that collects grease out of sight. The fire and rescue service for Graveley is Hertfordshire Fire and Rescue Service. Grease in a kitchen extract is a recognised fire risk, and the fire authority enforces the law on managing it in most commercial premises. In Graveley, food businesses are inspected by environmental health officers from North Hertfordshire council. The cleanliness of the kitchen and its equipment, extraction included, is part of what they check. A dated certificate in the maintenance file answers the question before it’s asked.

If your kitchen is in a listed or historic building, like the houses around Graveley (Knebworth House is about 4.4 miles south), fitting access panels needs care. For schools such as Graveley Primary School, kitchen extract cleaning is usually booked for the holidays, when the canteen is closed. A hall kitchen that only cooks for events, whether near Church of St Mary or elsewhere in Graveley, still needs its extract cleaned, just less often.

Graveley is about 2 miles north-west of Stevenage, in Hertfordshire. We carry out ductwork cleaning for commercial premises of every kind in Graveley and the rest of Hertfordshire. We cover 381 places across Hertfordshire, large and small. We also work in Milton Keynes, about 25 miles from Graveley.

Postcode districts we cover here for ductwork cleaning: SG4. Streets in the area include High Street, Oak Lane and Ashwell Close, all of which we cover for ductwork cleaning. Other places close to Graveley include Todd's Green (1 mile south-west), Great Wymondley (1 mile north-west), Little Wymondley (1 mile west), Titmore Green (1 mile south-west) and Lower Titmore Green (1 mile south-west). Within a short drive, we also cover St Albans (14 miles south), Welwyn Garden City (10 miles south), Harpenden (10 miles south-west), Hitchin (3 miles west), Hoddesdon (15 miles south-east) and Hatfield (12 miles south).

Local landmarks in Graveley

In Graveley, that means kitchens and buildings near Waggon And Horses Public House, Church of Saint Nicholas and The John Henry Newman School, among other places. For rail, the closest station is Stevenage station, about 2.4 miles south of the centre. Other landmarks nearby include Wymondley Castle (1.1 miles west) and Stevenage Museum (2.4 miles south). Open spaces near Graveley include Purwell Ninesprings.

Map of Graveley © OpenStreetMap contributors
BESCA Vent Hygiene EliteMember, cleaning to BESA TR19® Grease
CHAS · SafeContractorISO 9001 and fully insured
Certificate and photo reportWith every clean
24/7 emergency calloutEvenings, nights and weekends
Since 2009South East England and London