Hertfordshire · Ductwork cleaning
Duct cleaning in Whempstead
Ductwork cleaning for commercial sites in Whempstead and across Hertfordshire. CHAS, SafeContractor and ISO 9001, and fully insured.
- Duct runs that can’t be reached
- A rancid smell from the extract duct
- High readings at a recent grease test
Ductwork cleaning in Whempstead
No two duct runs are the same, in Whempstead or anywhere else. A few metres to an outside wall, or a riser up through the building to a roof fan. We map the route during the survey, so we know where to get in and how long it will take. The work covers bends and junctions, access panels and horizontal duct runs, and people most often call us about thick crusts of old grease along the duct and a grease test showing the duct is overdue.
Somewhere as small as Whempstead, commercial kitchens are few: perhaps a pub, a school or care home kitchen, or a hall used for events. Every one of them still needs its extract kept clear of grease.
We’re CHAS and SafeContractor accredited, we hold ISO 9001 and we’re fully insured. On top of that, we’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, trading since 2009.

- Place
- Whempstead (SG12)
- Wider area
- Hertfordshire
- Reporting
- TR19® certificate and photo report
- Quotes
- A fixed quote up front
- Working hours
- When your site is closed, plus a 24/7 line
- Phone
- 0345 646 2711
- Reviewed
- 30 October 2026
Why act early in Whempstead
Grease narrows the duct and slows the air. Less air moves, so heat and smoke stay in the kitchen while the fan strains and grease can drip from duct joints. With notice, the visit to Whempstead can be fitted around your bookings and events.
Kitchens, offices, schools and hospitals are all priced the same way: how much there is, how we reach it, what state it’s in and when we can work. Ask for a fixed quote and we will go through it with you.
Why choose Duct Doctor in Whempstead
- A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- One contact for all your sites in London and the South East
- Fixed quotes, usually within one working day
- Evenings, overnight and weekends, plus 24/7 emergency callout
Take a look at our cost guide and our accreditations.
Nearby places to Whempstead
Other services in Whempstead
Different parts, different methods
Access panels
After cleaning, every panel is closed and sealed so the duct stays tight. We will tell you if any panel needs replacing.
Vertical risers
A riser takes the duct up through one or more floors. Grease collects on the walls and at the foot of the riser, which is one of the points we test.
Multi-site and managed buildings
We regularly work with managing agents. Tell us the site, the work and the access arrangements and we will come back with a fixed quote.
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 pictures, so each one has its own record.
Your questions about ductwork cleaning in Whempstead
Can you get to a site in Whempstead?
Yes, Whempstead is part of our area, however small the site. Let us know about access, parking and anything unusual about getting there when you book.
Who would carry out a food hygiene inspection at a kitchen in Whempstead?
Food hygiene inspections in Whempstead are carried out by East Hertfordshire council. Ratings are published by the Food Standards Agency, so a clean extract and good records are worth keeping up.
Is a quote from pictures possible?
Yes, for many jobs. Send a few wide photos plus close-ups of panels, filters or grilles, and a fixed quote normally follows within one working day. Some sites still need a visit, and we’ll say so.
How much notice should we give?
Earlier is better, particularly for night and weekend visits. We typically quote within one working day, and there’s a 24/7 line for emergencies.
What’s TR19?
TR19® is the BESA specification for keeping ventilation systems clean. Since 2019, TR19® Grease has been a standalone specification for grease in kitchen extract systems, while TR19® Air covers other supply and extract ductwork.
What information do you need?
Only a few details: the address, the site type, your opening hours and how we reach the system. Photos and the last report help too. After that, simply ring 0345 646 2711 or drop us a line.
Do you work with multi-site operators?
Yes. Send the list of sites and the work at each and you’ll get one fixed quote.
What happens to the waste?
We take it away when we go. During the work, it’s contained to keep the area clean.
Honest limits
In fairness, there are a few things this work will not fix:
- Duct sections that need replacing
- Parts of the duct with no way in
- A worn-out fan that needs replacing
Not sure which it is? You can ring 0345 646 2711, or send details by email and we will tell you honestly before booking.
Where we work
- Horizontal duct runs
- Access panels
- Bends and junctions
- Attenuators
- Vertical risers
- Multi-storey ducts
What affects the cost of ductwork cleaning
There’s no set price list, because sites vary so much. The quote depends on:
- The number of sites or systems
- How easy every part is to reach
- Site rules, permits and inductions
- Parking and loading at the site
Several systems or sites on one quote often makes better use of the time. Mention every system or site you need covered and we’ll price it together.
What we need to know
Many jobs can be priced from photos and some basics. Send what you can of the following:
- The site address and the type of premises
- How we’d reach plant on a roof or in a plant room
- The times we could work without disrupting the site
- The paperwork from the last visit, if you have it
Want a quote for ductwork cleaning? Please ring 0345 646 2711 or send us an email with a few details about the site. We will explain what we’d do and send a fixed quote before you commit to anything.
Kitchen extracts in Whempstead
Food Standards Agency records include about 4 pubs, bars and clubs in and around Whempstead, up to about a mile and a half out. Where they serve hot food, their kitchen extracts need cleaning to TR19® like any restaurant’s. Whempstead 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. Environmental health officers from East Hertfordshire council inspect food businesses in Whempstead. An officer looking round a kitchen will see the canopy, and grease there is hard to miss. Before-and-after photos from each clean are a simple way to show the extract is in hand.
Aston Bury, about 2.6 miles west, is one of the historic houses near Whempstead; if you run event catering at a venue like that, cleans can be booked between functions. Volunteers running a hall kitchen near Parish Church of All Saints, or anywhere in Whempstead, may not know when the extract was last cleaned, and a grease test settles it. Bursars and site managers at schools such as Munden Church of England Voluntary Controlled Primary School tend to book extract cleaning for when the kitchen is empty.
Whempstead is about 5 miles south-east of Stevenage, in Hertfordshire. Whempstead gets the same approach as every site we work on: a survey first, a fixed quote, work timed around your hours and a report with photos. Our area takes in 381 places across Hertfordshire, large and small. We also work in London, around 26 miles away.
Here we cover the SG12 postcode area for ductwork cleaning. Local streets include Whempstead Road and Mill Lane, and we cover them all for ductwork cleaning. Other places close to Whempstead include Dane End (1 mile east), Burn's Green (1 mile north-west), Sacombe (1 mile south-east), Haultwick (2 miles north-east) and Sacombe Green (2 miles south-east). Larger places within reach include Stevenage (5 miles north-west), St Albans (13 miles south-west), Bishop's Stortford (10 miles east), Welwyn Garden City (7 miles south-west), Harpenden (12 miles west) and Hitchin (9 miles north-west).
Landmarks near Whempstead
The nearest railway station is Watton-At-Stone station, roughly 1.8 miles south-west. Nearby you’ll also find Hertford County Hospital (5.4 miles south) and Benington Castle (2 miles north-west). Green spaces nearby include Astonbury Wood.
What we do, step by step
We are used to working while the site is closed. Evenings, nights and weekends are when much of our work happens, so the site can open as normal afterwards. The visit itself takes from a few hours to more than one visit, depending on duct length and access. Seeing the system in pictures first means the trip to Whempstead can be planned properly.
- First we diagnose: the route, the access and the grease levels.
- You get a fixed price before work starts.
- We clean section by section, working from panel to panel.
- We take extra care at bends and at the foot of risers.
- The duct is signed off with readings, photos and a next clean date.
Before we arrive
- Plan for cooking equipment or plant to be off before we arrive
- Name a contact who can let us in at the agreed time
- Find the previous report, if there is one
Getting a quote
Here’s what helps us quote: the address, the type of site and when it’s open, a few photos and any previous report or certificate. Once you have those, call us on 0345 646 2711 or use the quote form.
Advice
Aftercare tips
Here’s the after-treatment advice, in brief:
- Have the grease measured if cooking hours go up
- Ask us about extra access panels where sections can’t be reached
- Keep the fan on while anything is cooking
- Leave a way through to the access panels
After the clean, the same points are tested again, so the report shows the before and after figures. Before and after pictures sit next to the numbers.
Grease that never reaches the duct never needs cleaning out of it. Keep the filters clean, well fitted and in place whenever you cook.