Hertfordshire · Air handling unit cleaning
AHU Cleaning in Markyate
Looking for AHU cleaning in Markyate? We diagnose first, fix the price and book the work around your hours, finishing with a written report and photos.
- Condensate trays that will not empty
- Units that have only ever had filter changes
- Air handling units with blocked filters
About our AHU cleaning in Markyate
Heating and cooling coils trap dust that gets past the filters. A coated coil restricts airflow and makes the unit work harder. We clean coils with methods suited to their condition, taking care not to damage the fins. Typical jobs include air handling units never cleaned inside and fan sections that haven’t been cleaned in years, across heating and cooling coils, dampers and louvres and filter sections.
For a building near Markyate, the visit is planned around how it’s used, and the journey is planned ahead. The work is the same as in any town: inspect, clean, record.
The report is your system’s health record: dated, with pictures, and showing what was done. For TR19® Grease cleans, the certificate comes through the BESCA Vent Hygiene Elite portal and sits alongside the report.
- Place
- Markyate (AL3)
- Region
- Hertfordshire
- Records
- Photo report after each visit
- Price
- A fixed price before we start
- Working hours
- When your site is closed, plus a 24/7 line
- Telephone
- 0345 646 2711
- Page updated
- 30 October 2026
Different parts, different methods
Filters
Filter condition tells you a lot about the rest of the unit. We photograph them for the report.
Internal casing and panels
We open each section through its doors and close them securely when we are done, and check every one is shut.
Between visits
No system stays clean for ever, but care slows the build-up. A few tips:
- Report water on the plant room floor
- Change filters on schedule and log each change
- Report stiff or damaged access doors
- Flag stale or damp smells in the supply air
The report shows each section of the unit before and after, and note any part we couldn’t get to. It also notes faults we spotted, such as damaged panels or a blocked drain.
Change or clean filters on time. Overloaded filters let more dirt through to the coils and fan.
Why act early in Markyate
Cleaning a unit while it only has light dust is quick. Years of build-up make the job longer and harder, especially where there’s been moisture. Around Markyate, a kitchen or building out of action is missed right away.
Working hours, access and the scale of the site can all change the price. We take each of them into account, and the price is fixed before any work starts.
What you get with us
- We diagnose before we treat
- Accredited under CHAS and SafeContractor, with ISO 9001
- A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- Evenings, overnight and weekends, plus 24/7 emergency callout
Take a look at how cleaning jobs are priced and our accreditations and certificates.
Markyate: your questions answered
Will you come out to Markyate?
Yes. Markyate is within the area we cover across London and the South East. A survey first, from photos or a visit, means we arrive with the right kit.
Can you do AHU cleaning in Markyate?
Yes. Our area runs across London and the South East, Markyate included. A fixed quote usually follows within one working day of the survey details.
Will we get paperwork for the AHU clean?
Yes. You get a TR19® certificate plus before and after photos. They’re worth keeping with the plant records.
What accreditations do you have?
BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease, plus CHAS, SafeContractor and ISO 9001. We’re fully insured and have been trading since 2009.
Can you clean the AHU out of hours?
Yes. We work evenings, overnight and weekends, so the building keeps running in the day.
What is TR19?
TR19® is BESA’s specification for ventilation hygiene. TR19® Grease, a standalone specification since 2019, covers grease in kitchen extract systems, and TR19® Air covers general supply and extract systems.
Do you do ventilation duct cleaning too?
Yes. Ventilation ductwork cleaning to TR19® Air is part of what we do. It’s often worth doing both at once, and we can quote for both.
Do you offer emergency callouts?
Yes, day and night, every day of the year. Our office is open from 8am to 6pm on weekdays, with the emergency line covering every other hour.
Multi-site and managed buildings
For anyone managing more than one site, we can plan visits across the whole estate and price them together. Every building has its own written report, so each one has its own record.
The Fire Safety Order 2005 puts the duty to manage fire risk on the responsible person, and that can be the employer, the owner, a landlord, a facilities manager or a managing agent. With shared responsibility, good records help everyone.
The process
There’s very little for your team to do on the day. A contact on site lets us in at the agreed time and points us to the system, and we take it from there. Afterwards, the area is left tidy and the written report follows. Everything the job in Markyate needs is worked out beforehand, from the survey.
- We look at the unit and the plant area during the survey.
- We sheet the area and the unit is isolated.
- Each section is cleaned of dust, debris and slime.
- Coils and trays are cleaned and the condensate drain cleared.
- We close every panel, hand the unit back and send the report and certificate.
Getting ready for the visit
- Tell us the best time to work, such as after service or at a weekend
- Tell us about site rules, permits or sign-in
- Clear loose items from the work area
Getting a quote
Need a price for AHU cleaning? Please phone us on 0345 646 2711, or email photos with a few details about the site. We’ll explain what we’d do and send a fixed quote before anything is booked.
Advice
What AHU cleaning looks like in Markyate
Markyate, about 28 miles from central London, is within our usual area. We work evenings, overnight and at weekends, so the visit fits around the site. For Markyate, the closest hospital is Luton and Dunstable Hospital, roughly 4.1 miles north. 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 manage a school such as Markyate Village School and Nursery, ventilation cleaning is best booked for the holidays. Healthcare buildings such as Luton and Dunstable Hospital, about 4.1 miles north, depend on their ventilation; if you manage a surgery, clinic or care home near Markyate, yours matters too.
Markyate is in Hertfordshire. We carry out AHU cleaning for businesses, landlords and public buildings in Markyate and the rest of Hertfordshire. Our Hertfordshire coverage runs to 381 places, Markyate among them. There’s also a page for Milton Keynes, about 19 miles away.
We work across the AL3 postcode area for AHU cleaning and the roads nearby. Local streets include High Street, London Road and Sebright Road, all of which we cover for AHU cleaning. Neighbouring places we cover for AHU cleaning include Roe End (1 mile south-west), Flamstead (2 miles south-east), Friar's Wash (2 miles south-east) and Trowley Bottom (2 miles south-east). Larger places within reach include Watford (12 miles south), Hemel Hempstead (6 miles south), Stevenage (13 miles north-east), St Albans (8 miles south-east), Welwyn Garden City (12 miles east) and Harpenden (5 miles east).
Landmarks near Markyate
In Markyate, that means kitchens and buildings near The Local pub and the streets around them. The nearest railway station is Luton Airport Parkway station, roughly 3.8 miles north-east of the centre. Well-known places in the area include Mossman Collection (2.6 miles north-east) and Luton Castle (3.3 miles north-east). Open spaces near Markyate include Landpark Wood.
What affects the cost of AHU cleaning
The quote reflects the site in front of us. We take into account:
- The scale of the work
- The number of sites or systems
- The times the site is available
- Whether it’s a one-off visit or part of a schedule
Several systems or sites on one quote can make for a more efficient booking. Tell us about everything you’d like looked at and we’ll price it together.
Asking for a quote
What to send for a quote:
- The paperwork from the last visit, if you have it
- The site address and the type of premises
- Anything you’ve noticed, such as smells, noise, drips or poor airflow
- When the site is open and when it’s quiet
Quoting starts with a diagnosis, either from pictures and details you send or from a site visit. After that, you get a fixed price for the work so you know the cost before work begins.
What a clean won’t put right
To be straight with you, there are a few things this work will not fix:
- Breakdowns that need a mechanical engineer
- Controls and BMS settings that run the unit
- Dirty ducts beyond the unit itself
If you are not sure, just phone us on 0345 646 2711 or drop us a line and we will give you a straight answer before booking.
What the work covers
- Drain trays
- Filter sections
- Dampers and louvres
- Heating and cooling coils
- Supply and extract fans
- Internal panels