Hertfordshire · Ductwork cleaning
Lemsford ductwork cleaning
Ductwork cleaning for Lemsford, from a team that has been trading since 2009. Evenings, overnight and weekends, plus a 24/7 emergency line.
- A duct clean needed for an insurer
- Thick crusts of old grease along the duct
- Readings above 200 microns from a grease thickness test
Ductwork cleaning for kitchens and businesses in Lemsford
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. We open up every reachable section and record any we can’t reach, so you know exactly where you stand. If you’re dealing with a duct clean needed for an insurer and a rancid smell from the extract duct, we can help, from access panels, multi-storey ducts and vertical risers onwards.
Work in a small place like Lemsford starts with a call to agree access and timings, and the clean covers the whole system, as it would anywhere: canopy, filters, duct, fan and discharge, with a certificate and photo report at the end.
The sign-off is always in writing: a written report, dated and illustrated with pictures, plus a certificate through the BESCA Vent Hygiene Elite portal when the work is a TR19® Grease clean. It shows what was done and what, if anything, couldn’t be reached.
- Location
- Lemsford (AL8)
- Wider area
- Hertfordshire
- Records
- Certificate and photo report
- Price
- Fixed quote, usually within a working day
- Working hours
- Overnight and weekend work, 24/7 emergency callout
- Call
- 0345 646 2711
- Updated
- 30 October 2026
Signs you need ductwork cleaning in Lemsford
Grease filters that do not seal let fat straight through. The duct then takes grease that the filters should have stopped and it fills faster.
Look out for any of the following:
- Duct runs with no cleaning record
- Gaps where access panels were never fitted
- Hardened, baked-on grease in long horizontal runs
- Heavy grease at the base of a riser
Digswell House, about 1.9 miles north-east, is one of the historic houses near Lemsford; if you run event catering at a venue like that, cleans can be booked between functions.
What to look for in a quote
- When the next visit should be, and why
- What records you’ll receive afterwards
- How areas they can’t reach will be recorded
- Proof of accreditation you can verify
What ductwork cleaning looks like in Lemsford
Look up Lemsford on the FSA’s food hygiene register and you will find about 31 cafés, restaurants and staff canteens and about 7 takeaways in and around Lemsford, up to about a mile and a half out. Where they cook under a canopy, grease does not stop at the filters: it settles along the duct and up the riser. Environmental health officers from Welwyn Hatfield council inspect food businesses in Lemsford. The cleanliness of the kitchen and its equipment, extraction included, is part of what they check. Keeping each certificate and photo report on file helps show the extract is looked after. Lemsford is covered by Hertfordshire Fire and Rescue Service. In most workplaces, including commercial kitchens, it’s the fire and rescue authority that enforces the Fire Safety Order.
If you run catering at a healthcare site, such as a hospital like Queen Elizabeth II Hospital about 2.1 miles south-east, the extract may need cleaning more often than a part-time kitchen. Term dates shape school work: for a school like Applecroft School, an extract clean fits neatly into a half-term or summer break.
Lemsford is about 2 miles west of Welwyn Garden City, in Hertfordshire. Lemsford 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. Across Hertfordshire, we cover 381 places, Lemsford among them. For sites nearby, see our London page (21 miles or so).
Work in AL8 follows the same survey, fixed quote and written report as everywhere else we cover. You will find streets such as Mill Close, Lemsford Village and Great North Road, all of which we cover for ductwork cleaning. Close by, we work in Stanborough (1 mile south), Coleman Green (2 miles west), Cooper's Green (2 miles south-west), Hatfield (2 miles south) and Smallford (3 miles south-west). Further out, we also cover Watford (12 miles south-west), Hemel Hempstead (10 miles west), Stevenage (8 miles north), St Albans (5 miles south-west), Harpenden (5 miles west) and Hitchin (11 miles north).
Around Lemsford
Locally, jobs take us to businesses close to Stanborough Park, Stanborough School and The Sun Inn. The closest station to Lemsford is Welwyn Garden City station, about 1.2 miles east. Other landmarks nearby include Queen Elizabeth II Hospital (2.1 miles south-east) and The Bunker at Hatfield Police Station (2.1 miles south). For a walk, there’s Lemsford Springs.
Questions from Lemsford
Do you work overnight in Lemsford?
Yes. We work evenings, overnight and at weekends. Your customers, staff or residents in Lemsford needn’t be disturbed. Tell us your opening hours when you ask for a quote.
Can school kitchens in Lemsford be cleaned in the holidays?
Yes, out-of-term visits are normal for schools. With about 12 schools and colleges on the FSA’s register within roughly a mile and a half of Lemsford, it pays to plan holiday dates ahead. Just call us on 0345 646 2711 or use the quote form with your term dates and we’ll plan around them.
Which accreditations do you hold?
CHAS, SafeContractor, ISO 9001 and BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease. We are fully insured and have been trading since 2009.
Do you work with multi-site operators?
Yes. Send the list of sites and the work at each and we will quote them together.
How long does it take to clean extract ducts?
Duct length, access and grease levels all affect it. Typically it takes from a few hours to more than one visit, depending on duct length and access.
What does ductwork cleaning cost?
There’s no set price, as it depends on the job: the size of the system, its condition, access and when we can work. You get a fixed price before work begins.
Do you offer maintenance contracts?
Yes, of course. Tell us what you have and how it’s used and we will propose a schedule with a fixed quote.
Do we lose a day’s trading?
Not normally. We work when the area is out of use, such as evenings, overnight, early mornings or weekends, so you keep your normal hours.
What your team can do, and what needs us
Logging matters as much as cleaning. A dated log of in-house cleaning and checks helps show that the system is managed between specialist visits, alongside our reports.
A few tasks are always specialist work: entering ducts, working on fans, testing dampers and taking grease readings call for the right kit, training and safe access. That’s our job.
Nearby places to Lemsford
Other services in Lemsford
How it 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. On site, the work takes from a few hours to more than one visit, depending on duct length and access. Seeing the system in photos first means the trip to Lemsford can be planned properly.
- Diagnosis: a survey of the duct’s route, size and access.
- You get a fixed price before work starts.
- Each section is cleaned in turn through its access panel.
- We take extra care at bends and at the foot of risers.
- The duct is signed off with readings, pictures and a next clean date.
Before we arrive
- Mention any parking or loading restrictions
- Have your last certificate or report to hand
- Clear the space around the work
How to get a quote
If you need ductwork cleaning in Lemsford, call 0345 646 2711 or send us an email. Let us know the site type and the opening hours, and send pictures or your last report if you can. We usually send a fixed quote within one working day.
Read more
Different parts, different methods
Bends and transitions
Grease tends to pile up at elbows. We clean it back by hand and with degreaser, and readings are taken there before and after.
Access panels
We can fit new access panels where the duct needs them, making future cleans more complete. The survey shows where they’re needed.
Why deal with it now?
A dirty duct is something insurers ask about. Many require cleaning to TR19, and they can refuse or reduce a claim without proof. Your certificate and photo report show the ducts were cleaned. A planned visit to Lemsford is easier to arrange than an emergency callout.
Every site is different, so we price each one individually. The size of the job, how we reach it, its condition and the working hours all play a part.
Why us?
- Out-of-hours work and a 24/7 emergency line
- A single point of contact for sites across the South East and London
- Each visit written up, with pictures
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
Take a look at what affects the cost or how to check a contractor.
Multi-site and managed buildings
When the building owner and the occupier are different, it’s worth checking the lease for who maintains the systems. We’re happy to deal with either side and send the paperwork to whoever needs it.
Facilities teams in offices, schools and healthcare sites book us too in Lemsford and across Hertfordshire. Work can be phased by floor, building or site to keep disruption down.
What affects the cost of ductwork cleaning
There’s no set price list, because sites vary so much. What we look at:
- Whether it’s a one-off visit or part of a schedule
- What state the system is in
- Access, including roofs, risers and ceiling voids
- Parking and loading at the site
Whatever the type of site, the quote works the same way: how much there is, how we reach it, what state it’s in and when we can work. Call for a fixed quote and we’ll explain each part.
Helping us quote
When you contact us, it’s useful to have:
- The postcode and the type of business
- How we’d reach plant on a roof or in a plant room
- Any previous report or certificate
- Close-ups of filters, grilles, hatches or access panels
Photos are the quickest way to a quote: wide shots of the system, close-ups of anything that worries you and how we’d get to it. Tell us what kind of site it is and when it’s open, and many jobs can be priced from that alone.