Hertfordshire · Air handling unit cleaning
AHU Cleaning in Micklefield Green
AHU cleaning for Micklefield Green and the surrounding area: a survey, a fixed price, careful work and proper paperwork. Ask us for a fixed quote.
- Debris and leaves in the fresh air intake
- Dust built up on fan impellers
- Dirty coils holding back the airflow
What we do, step by step
Your staff do not need to do much on the day. Someone lets us in at the agreed time and shows us where everything is, and we take it from there. Afterwards, the area is left tidy and the written report follows. Photos of the system and how to reach it help us plan a visit to Micklefield Green.
- We start with a survey of the unit and a fixed quote for the work.
- We arrange the shutdown with your staff and sheet the area.
- Filters are dealt with as agreed, and the coils, fan and casing cleaned.
- We clean out the drain tray and make sure it drains.
- You get a TR19® certificate and a photo report.
How to prepare
- Let us know about parking and loading
- Let us know about permits to work or site inductions
- Find the previous report, if there is one
Ask for a quote
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. Add the site type and your opening hours, and many jobs can be priced from that alone.
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How we handle AHU cleaning in Micklefield Green
Think of an AHU clean as a full check-up for the ventilation. Every section is opened, cleaned and photographed, so the report shows exactly what was done. We’re often asked to deal with air handling units due a clean after building work and dirty filters cutting the airflow, on drain trays, internal panels and heating and cooling coils.
In a village or hamlet like Micklefield Green, few buildings have mechanical ventilation, but those that do need it inspected and cleaned like any other.
It’s worth checking any contractor’s accreditations. We are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we hold CHAS, SafeContractor and ISO 9001, with full insurance on top.
- Where
- Micklefield Green (WD3)
- Wider area
- Hertfordshire
- Records
- Written report with photos
- Quote
- A fixed price before work begins
- Hours
- Overnight and weekend work, 24/7 emergency callout
- Phone
- 0345 646 2711
- Updated
- 30 October 2026
Towns and villages near Micklefield Green
Also in Micklefield Green
What AHU cleaning looks like in Micklefield Green
There are about 4 schools, colleges and universities and about 3 caring premises (care homes, nurseries and hospitals) on the FSA’s food hygiene register within about 1.5 miles of central Micklefield Green. Many buildings of this kind have supply and extract ductwork that gathers dust and needs inspecting. We cover Micklefield Green, about 21 miles from central London, as part of our work across London and the South East. Evening, overnight and weekend visits are all possible. Micklefield Green’s nearest hospital, Leavesden Hospital, is about 3.9 miles north-east. If you run a surgery, clinic or care home, your ventilation deserves the same care as a hospital’s, on a smaller scale.
If you run a surgery, dental practice or care home near Micklefield Green, clean ventilation matters as much to you as to a hospital like Leavesden Hospital (about 3.9 miles north-east).
Micklefield Green is about 3 miles north of Rickmansworth, in Hertfordshire. For AHU cleaning in and around Micklefield Green, it’s easy to get a fixed quote: please call us on 0345 646 2711, or send details by email. Our area covers London and the South East, Micklefield Green included. Micklefield Green is one of 381 towns, villages and districts in Hertfordshire we cover for commercial clients. You can also see our page for London, about 21 miles away.
Work in WD3 follows the same survey, fixed quote and written report as everywhere else we cover. We also cover Sarratt (1 mile north-west), Chandler's Cross (1 mile east), Loudwater (1 mile south), Bucks Hill (1 mile north) and Chorleywood West (2 miles south). We also work in nearby towns such as Watford (4 miles east), Hemel Hempstead (6 miles north), St Albans (9 miles north-east), Welwyn Garden City (15 miles north-east), Harpenden (11 miles north-east) and Hatfield (12 miles north-east).
Local landmarks in Micklefield Green
Around Micklefield Green, our work takes us to kitchens and buildings near St Clement Danes School, York House School and The Cock Public House. The nearest railway station is Chorleywood station, about 2 miles south-west. Well-known places in the area include Leavesden Hospital (3.9 miles north-east) and Chiltern Open Air Museum (3.6 miles south-west). Not far away are Tumbling Bay and Chorleywood Common.
Managing agents and facilities teams in Micklefield Green
Landlords, managing agents and facilities managers book us, not only the businesses that use the systems. Where a system serves more than one tenant, such as a shared riser, it helps to agree who arranges the work, and we are happy to quote for all of it.
Managing agents often deal with us directly. Tell us the site, the work and the access arrangements, and we’ll send a fixed quote.
Micklefield Green questions
Can you work in Micklefield Green outside opening hours?
Yes, evening, overnight and weekend work is normal for us. The work in Micklefield Green can fit around your hours. When you phone us on 0345 646 2711, or send details by email, mention when the site is quiet.
Do you do school ventilation cleaning in Micklefield Green in the summer holidays?
Yes. Half-terms and the summer break are the natural time for school work. Food Standards Agency records list about 4 schools, colleges and universities with registered kitchens within about a mile and a half of Micklefield Green. Just call 0345 646 2711 or drop us a line with your term dates and we’ll plan around them.
Can you clean the ducts connected to the AHU?
Yes. We clean supply and extract ductwork to TR19® Air as well. It’s often worth doing both at once, and we can survey both on the same visit.
Do you look at the system first?
Yes. Every job is surveyed first, either from photos and details you send or on a site visit. Then you get a fixed quote.
Do you need to switch the unit off?
Yes. Cleaning needs the unit off and isolated, so we plan it for a time that suits the building.
Can we book visits on a schedule?
Yes. We run scheduled maintenance contracts, set at the interval the system needs. Each report recommends when the next visit should be.
Do you have a 24/7 line?
Yes. Our emergency line runs 24/7, for problems that cannot wait. Call us any time and explain what’s happened.
Is Micklefield Green in your area?
Yes. We cover Micklefield Green and the rest of Hertfordshire, as part of our work across South East England and London. To book, call us on 0345 646 2711 or use the quote form.
Do you need AHU cleaning in Micklefield Green?
Cooling coils create condensation, and that water has to go somewhere. A blocked outlet or a badly sloped tray leaves standing water, and slime and smells soon follow.
Clients usually contact us after spotting something like this:
- Dirty fans and fan housings
- Filters that are clogged or overdue
- Odours coming through the supply air
- Debris and leaves in the fresh air intake
Wherever a school like Sarratt Church of England Primary School has ducted ventilation, a half-term visit keeps the work out of lesson time.
Before you book anyone
- Whether the quote shows VAT
- If the quote is a fixed price or an estimate
- When they can work, and whether that’s outside your opening hours
- What paperwork you get at the end
Why act early in Micklefield Green
A clogged coil or dirty fan makes the unit work harder for the same airflow. That means more wear on the motor and rooms that feel less fresh, and a clean on your terms beats a breakdown on nobody’s. It’s worth booking a check, because nobody sees inside a duct day to day.
Putting the work off seldom saves money. Build-up, wear and faults tend to get worse, not better, and a neglected system can mean more work. If you are not sure what’s needed, call 0345 646 2711, or email photos and we will give you an honest view and a fixed quote.
Why choose Duct Doctor in Micklefield Green
- Fully insured
- Accredited under CHAS and SafeContractor, with ISO 9001
- BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- One number for every site across the South East and London
Take a look at our cost guide and how to check a contractor.
What the work involves, part by part
Drain trays
Drain trays can rust and leak over time. Their condition goes into the report with pictures so you can decide on any repairs.
Fans and fan sections
The fan section is cleaned with the unit switched off and isolated with your site team.
Keeping the system healthy
Good habits slow the build-up between visits. Our tips:
- Clear leaves and litter away from the intake
- Book the next check in line with the report
- File each AHU report in the maintenance log
- Flag stale or damp smells in the supply air
When we’ve closed the unit up, it can be restarted with your site team. Keep an eye on the condensate drain over the next few days to make sure it stays clear.
Make the drain tray part of every maintenance visit. A drain that is cleared early never gets to the slime stage.
What your team can do, and what needs us
If your staff spot something between visits, such as dripping grease, a noisy fan, a smell or a filter that won’t come clean, it’s best reported rather than tackled in-house. We can diagnose it and quote.
Staff cleaning and specialist work are not the same thing. A daily filter wipe and a weekly filter wash keep grease down at the front of the system, but they don’t reach the grease that builds up further in. That part needs specialist access and equipment.