Hertfordshire · Ductwork cleaning
Ductwork Cleaning in Holwell
Ductwork cleaning in Holwell, surveyed first and signed off with a written report and pictures. Call for a fixed quote.
- A rancid smell from the extract duct
- Heavy grease at the base of a riser
- Thick crusts of old grease along the duct
Ductwork cleaning in Holwell
Between the canopy and the fan runs the ductwork, hidden above ceilings and inside walls. Grease settles along every metre of it and a fire in the duct can spread through the building. Our ductwork cleaning reaches inside the runs and risers through access panels, to BESA TR19® Grease. Common call-outs are for years of grease along the duct floor and grease seeping out of the duct seams, on vertical risers, attenuators and multi-storey ducts.
Work in a small place like Holwell 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.
Good records are part of the job. You get a written report with pictures after every visit, listing what was done, anything we couldn’t reach and when the next visit is due. File it in your maintenance log so it’s to hand when an insurer or inspector asks.
- Where
- Holwell (SG5)
- Wider area
- Hertfordshire
- Paperwork
- Certificate plus before-and-after photos
- Quotes
- Fixed quote, usually within a working day
- Working hours
- After hours by arrangement; emergencies any time
- Phone
- 0345 646 2711
- Updated
- 30 October 2026
Staff cleaning versus specialist work
Keep a record of what your team does. A dated log of in-house cleaning and checks helps show that the system is managed between specialist visits, next to our reports.
Away from the kitchen, the in-house job is mainly checking: clear grilles, a log of filter changes and reporting anything odd. The inside of ducts and units needs a specialist.
Grease, kitchens and Holwell
The Food Standards Agency lists about 4 bars, pubs and nightclubs as registered food businesses within 1.5 miles or so of the middle of Holwell. Wherever they cook, the canopy, duct and fan collect grease just as a restaurant’s do. Environmental health officers from North Hertfordshire council inspect food businesses in Holwell. A greasy canopy or dripping filters are the sort of thing an inspection can pick up. Keeping each certificate and photo report on file helps show the extract is looked after. Hertfordshire Fire and Rescue Service covers Holwell. Grease in a kitchen extract is a recognised fire risk, and the fire authority enforces the law on managing it in most commercial premises.
Church and community hall kitchens, near Church of St Peter (C of E) at Corner with Holwell Road or anywhere around Holwell, are easy to forget, but their extracts collect grease like any other. For schools such as The Priory School, kitchen extract cleaning is usually booked for the holidays, when the canteen is closed.
Holwell is about 3 miles north-west of Hitchin, in Hertfordshire. We carry out ductwork cleaning for businesses, landlords and public buildings in Holwell and the rest of Hertfordshire. We cover 381 places across Hertfordshire, from busy centres to quieter spots. We also work in Milton Keynes, around 20 miles away.
All of SG5 is within our area for ductwork cleaning, from the main roads to the quietest streets. If you need ductwork cleaning at premises on Gurney's Lane, Pirton Road and Rand's Meadow or anywhere close by, our technicians can take on the work. We also cover the places around Holwell: Pirton (2 miles south-west), Shillington (3 miles west), Apsley End (3 miles west), Hanscombe End (3 miles west) and Pegsdon (3 miles south-west). Larger places within reach include Stevenage (7 miles south-east), Welwyn Garden City (14 miles south), Harpenden (12 miles south), Hitchin (3 miles south-east), Letchworth (3 miles east) and Letchworth Garden City (3 miles east).
Around Holwell
Holwell’s nearest station is Hitchin station, roughly 2.8 miles south-east. Other landmarks nearby include Wymondley Castle (4.3 miles south-east) and Fairfield Hospital (2.7 miles north-east). Not far away are Markham's Hill and Oughtonhead Nature Reserve.
Common questions in Holwell
Will you come out to Holwell?
Yes. Villages and rural sites across the South East are part of our work, Holwell included. The journey is planned ahead, so a few details about the route help.
Do you clean school canteen extracts around Holwell out of term?
Yes, holiday work suits schools best. Food Standards Agency records list about 2 schools, colleges and universities with registered kitchens within about a mile and a half of Holwell. You can phone us on 0345 646 2711 or send us an email with the dates the site is empty.
What paperwork do you give after a duct clean?
When the duct is cleaned as part of a full TR19 clean, you get a TR19 certificate and a photo report. It includes readings, pictures and any unreachable sections.
Can one contract cover all our sites?
Yes. Our area covers London and the South East, so sites at different addresses can be planned together on one programme. Every site has its own report.
What if parts of the system can’t be reached?
They’re marked on the report. Often the fix is extra access, such as new panels in ductwork, which we can install.
Do you look at the system first?
Yes, every time. Diagnosis comes before treatment: the survey shows what needs doing and what access we need and the fixed quote is built on it.
Do you install duct access panels?
Yes, we do. The survey or clean shows where sections couldn’t be reached, and we can fit them so those sections are cleaned in future.
Can you come out in an emergency?
Yes, day and night, every day of the year. Office hours are Monday to Friday, 8am to 6pm, with the emergency line covering every other hour.
How it works
We turn up at the time agreed with you, often in the evening, overnight or at the weekend so the site keeps working. Equipment that has to be off is switched off and allowed to cool first, and the area around the work is covered and protected. On site, it takes anything from a few hours to several visits, depending on the length of duct. Pictures of the system and its access let us plan the work in Holwell before we set off.
- The duct route is surveyed and every access point found.
- Grease thickness is measured at set points.
- Out of hours, the area is protected and the access panels opened.
- Thick grease is scraped out, then the runs and risers are degreased.
- Panels are closed, readings and photos repeated, and unreachable sections recorded.
Getting ready for the visit
- Mention any parking or loading restrictions
- Clear the space around the work
- Let us know when the site is closed or quiet
How to get a quote
Want a quote for ductwork cleaning? Please give us a ring on 0345 646 2711 or use the quote form and tell us about the site. We’ll talk you through the work and give you a fixed quote before you commit to anything.
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What affects the cost of ductwork cleaning
The survey tells us what the work involves. We look at:
- The times the site is available
- Whether it’s a one-off visit or part of a schedule
- Where the site is and how we reach it
- How many systems or sites are involved
Working hours, access and the scale of the site all affect the cost. We take each of them into account, and the price is fixed before any work starts.
Helping us quote
Photos let us diagnose from a distance. The most useful are:
- When the site is open and when it’s quiet
- Where the site is and what kind of site it is
- Photos showing the whole system and its surroundings
- Your last certificate, test record or report
Quoting starts with a diagnosis, from your photos and details or, where that isn’t enough, a survey on site. Then we send a fixed price so you know the cost before we start.
What we’re called out for in Holwell
Ducts in Holwell gather grease for the same reasons as ducts anywhere: daily cooking hours, the menu and the state of the filters. Under BESA guidance, the minimum interval is 3, 6 or 12 months, by daily cooking hours.
The symptoms we’re asked about most are:
- Fat dripping from the ductwork
- An insurer asking for TR19 evidence
- A rancid smell from the extract duct
- A grease test showing the duct is overdue
Kitchens that cook twelve hours or more a day, as some healthcare kitchens do, fall into BESA’s three-monthly minimum; Fairfield Hospital is the nearest hospital to Holwell, about 2.7 miles north-east.
Comparing quotes
- How areas they can’t reach will be recorded
- If the quote is a fixed price or an estimate
- What records you will receive afterwards
- What’s included in the scope, part by part
Different parts, different methods
Attenuators and discharge
Some systems have attenuators to reduce noise, and their linings can soak up grease. We clean what can be reached and note anything that cannot.
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.
Why it’s worth doing now in Holwell
A partly blocked duct slows the airflow. The fan works harder, the kitchen gets hotter and smoke lingers at the canopy, and grease may start to leak from joints. Out of sight is the usual reason a rural system goes too long without attention.
Every site is different, so each one gets its own fixed quote. The size of the job, how we reach it, its condition and the working hours all make a difference.
What you get with us
- Fixed quotes from a survey or photos
- We diagnose before we treat
- One contact for all your sites in London and the South East
- Trading since 2009
Read our cost guide and how to check a contractor.
Places near Holwell
What else we do in Holwell
Managing agents and facilities teams in Holwell
From a single site to a large estate, you get the same standard: the system surveyed, the price fixed, the visit fitted around trading and everything written up afterwards.
Managing agents often deal with us directly. Send the address, what’s needed and how access works and we will come back with a fixed quote.