Kent · Air handling unit cleaning
Air handling unit cleaning in Lydd, Kent
AHU cleaning in Lydd from ventilation hygiene specialists trading since 2009. Out-of-hours visits and 24/7 emergency callout.
- Dust built up on fan impellers
- Plant that has been serviced but not cleaned
- Leaves and litter drawn into the unit
About our AHU cleaning in Lydd
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. The work covers dampers and louvres, internal panels and filter sections, and people most often call us about intake sections clogged with outdoor debris and filters that are clogged or overdue.
Around a place like Lydd, ventilation systems tend to be in schools, surgeries, care homes and workplaces. Even a small system collects dust in its ducts and filters.
Insurers, fire officers and environmental health officers all look at records. So every job comes with a written report and pictures, plus a TR19® certificate through the BESCA VHE portal where the work is a TR19® Grease clean.

- Location
- Lydd (TN29)
- Region
- Kent
- Records
- Report and photos after the visit
- Price
- A fixed quote up front
- Hours
- Evenings, overnight and weekends; 24/7 emergencies
- Telephone
- 0345 646 2711
- Last updated
- 30 October 2026
Why it’s worth doing now in Lydd
If people in a building in Lydd complain about stuffy or smelly air, the AHU is worth looking at. A clean tackles the source instead of masking it. Booking now means the visit to Lydd is planned around you, not forced by a breakdown.
You won’t find a price list here, because the cost depends on the site in front of us. Call for a fixed quote, and we’ll explain what it covers.
Why us?
- Trading since 2009
- CHAS and SafeContractor accredited, with ISO 9001
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
- We’re fully insured
Read what affects the cost and our accreditations.
How the job changes from site to site
Drain trays
Standing water in a tray sits right where the air passes. We clean it and note if the slope or the drain needs attention.
Internal casing and panels
Loose or damaged linings inside a unit can break up into the airstream. We note any we find in the report.
Ventilation in Lydd buildings
There are about 3 caring premises (care homes, nurseries and hospitals) on the FSA’s food hygiene register within 1.5 miles or so of the middle of Lydd. Buildings like these often rely on mechanical ventilation, which TR19® Air covers. We cover Lydd, about 58 miles from central London, as part of our work across London and the South East. Visits are booked around your hours, evenings and weekends included.
Wherever a school like Lydd Primary School has ducted ventilation, a half-term visit keeps the work out of lesson time.
Lydd is about 11 miles south-west of Hythe, in Kent. Sites in Lydd get the same service as everywhere we cover: diagnosis first, a fixed price, out-of-hours working where needed and a written report with photos. Our Kent coverage runs to 922 places, Lydd among them. Our Maidstone page covers sites nearby (27 miles or so).
Here we cover the TN29 postcode area for AHU cleaning. Whether your site is on Church Road, Station Road and High Street or a nearby road, our technicians can take on the work. With the B2075 close by, Lydd is easy for our technicians to reach at any hour. Neighbouring places we cover for AHU cleaning include Lydd-on-Sea (2 miles east), Greatstone-on-Sea (3 miles north-east), Old Romney (3 miles north), New Romney (3 miles north-east) and Littlestone-on-Sea (3 miles north-east). We also work in nearby towns such as Ashford (13 miles north), Folkestone (15 miles north-east), Hythe (11 miles north-east), Tenterden (12 miles north-west), Cheriton (14 miles north-east) and Kennington (15 miles north).
Local landmarks in Lydd
In Lydd, that means kitchens and buildings near The Dolphin Hotel. A little further out are Lydd Town Museum (within half a mile south-west) and Romney 'castle' (2.9 miles north). Open spaces near Lydd include Dungeness National and Burnthouse Pen.
Honest limits
Not every problem is solved by AHU cleaning, and we will tell you before any work starts. It doesn’t solve:
- Mechanical faults with motors, belts or bearings
- Damaged coils beyond cleaning
- Building management system faults
If in doubt, give us a ring on 0345 646 2711 or send us an email and we’ll say what we think.
What the work covers
- Internal panels
- Heating and cooling coils
- Dampers and louvres
- Filter sections
- Drain trays
- Supply and extract fans
Lydd: your questions answered
Do you cover Lydd for AHU cleaning?
Yes, Lydd is covered. Just give us a ring on 0345 646 2711 or email us with a few details of the site.
Do you work overnight in Lydd?
Yes, evening, overnight and weekend work is normal for us. Your customers, staff or residents in Lydd needn’t be disturbed. Your opening times are the first thing we ask for.
How long does it take to clean an air handling unit?
The work takes anything from half a day for one small unit to several shifts for a plant room full of them. Large plant can be split over several shifts, and you can call us on 0345 646 2711 or email us to plan it.
How often do AHUs need cleaning?
It depends on the unit, the filters and how the building is used. Regular inspection shows when it’s due, and the report recommends a next date.
Are you fully insured?
Yes. Duct Doctor is fully insured, and the details are available on request.
How much does AHU cleaning cost in Lydd?
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 repair air handling units?
We clean the unit and flag faults rather than repair them, with pictures where it helps.
Can you quote from photos?
Often, yes. With good photos, the site type and your last report, we can price many jobs. Where we can’t see enough, we arrange a survey.
In-house cleaning or a specialist?
Day-to-day cleaning is something your team can do: wiping down canopy surfaces, cleaning filters and keeping a simple log. Inside the ducts, risers and fan is specialist work, and that’s where we come in.
In-house cleaning and specialist cleaning do different jobs. 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.
Looking after it afterwards
Think of this as the after-treatment advice, in brief:
- Don’t ignore odours coming through the grilles
- Keep the area around the fresh air intake clear
- Make sure condensate is draining away
- Store the TR19 paperwork where auditors can find it
Restart the unit with your site team or maintenance contractor once we have finished. Check the drain tray is emptying over the first few days to make sure it stays clear.
Change or clean filters on time. Once filters clog, dirt starts getting past them.
Towns and villages near Lydd
What else we do in Lydd
Common problems we fix in Lydd
Filters that aren’t changed or cleaned on time clog up, cutting airflow and sometimes letting dirty air bypass them altogether. After that, the coils and fan collect what the filter should have caught.
These are the problems we see most often:
- Air handling units never cleaned inside
- Air handling units due a clean after building work
- Stale or musty smells from the ventilation
- Leaves and litter drawn into the unit
An inspection comes first for any ventilation job around Lydd, so the cleaning matches what’s there.
Questions to ask before booking
- How areas they can’t reach will be recorded
- Whether a survey comes first
- Whether the price is fixed
- Which accreditations they hold, and whether you can check them
What we do, step by step
Your staff don’t need to do much on the day. Someone lets us in at the agreed time and shows us where everything is, and the rest is down to us. Afterwards, the area is left tidy and the written report follows. Tell us when your site near Lydd is quiet and the visit will be booked for then.
- First the unit is surveyed, from photos or a visit, and the scope agreed.
- With your site team, the unit is switched off and isolated, then the area around it protected.
- We clean or change the filters as agreed, then clean the coils, fan and internal panels.
- Drain trays are cleared and cleaned and the outlet checked.
- We close up the unit and send the certificate and before and after pictures.
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
- Have your last certificate or report to hand
How to get a quote
The quickest way to a quote is to send pictures: 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.