Kent · Air handling unit cleaning
AHU Cleaning in Congelow
For cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces in Congelow, one call is all it takes: survey, fixed quote, work and sign-off. CHAS and SafeContractor accredited, ISO 9001 and fully insured.
- Blocked condensate drains and slimy trays
- Dirty filters cutting the airflow
- Dirty fans and fan housings
About our AHU cleaning in Congelow
Drain trays under cooling coils are meant to empty. If the outlet blocks, standing water and slime build up, right in the path of the air going into the building. Cleaning and clearing it is a key part of the job. We’re often asked to deal with plant that has been serviced but not cleaned and fan sections that haven’t been cleaned in years, on drain trays, internal panels and heating and cooling coils.
For a building in or near Congelow, access is agreed in advance and the visit is planned around the journey, and the ventilation is inspected, cleaned and recorded the same as anywhere.
The report is your system’s health record: dated, with photos, and showing what was done. For TR19® Grease cleans, the certificate comes through the BESCA Vent Hygiene Elite portal and sits alongside the report.
- Where
- Congelow (ME18)
- Wider area
- Kent
- Records
- Photo report after each visit
- Quote
- A fixed price before we start
- Working hours
- Out of hours as standard, 24/7 emergency line
- Phone
- 0345 646 2711
- Updated
- 30 October 2026
Looking after it afterwards
Simple habits between visits make a real difference. We recommend:
- Stick to the filter change plan
- Make sure condensate is draining away
- Do not store bins or materials near the intake
- Report stiff or damaged access doors
The report suggests a date for the next inspection or clean, taking into account how dirty it was. Under TR19® Air the timing is set by inspection and risk, not a fixed calendar.
Keep the unit’s doors and panels in working order. If a section is hard to get into, it tends not to get checked.
Honest limits
It’s worth knowing the limits before booking:
- Controls and BMS settings that run the unit
- The supply and extract ducts, quoted separately
- Breakdowns that need a mechanical engineer
Not sure which it is? You can phone us on 0345 646 2711 or drop us a line and we will tell you honestly.
Parts of the system we cover
- Drain trays
- Supply and extract fans
- Filter sections
- Dampers and louvres
- Heating and cooling coils
- Internal panels
Why act early in Congelow
A light clean now is simpler than a heavy one later. Leave it for years and dirt bakes onto coils and casings, particularly where damp has made it stick. If the system at a site near Congelow fails, there may be nowhere nearby to move to.
What you pay reflects the actual work. That is why we survey first, from pictures or on site, and the price is agreed before any work starts.
Why choose Duct Doctor in Congelow
- A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- In business since 2009
- CHAS, SafeContractor and ISO 9001
- Photo reports with every job
Take a look at our cost guide and our accreditations and certificates.
Congelow: your questions answered
Can a school’s ventilation in Congelow be done out of term time?
Yes. Half-terms and the summer break are the natural time for school work. There are about 3 schools, colleges and universities on the FSA’s food hygiene register within about 1.5 miles of Congelow. Just give us a ring on 0345 646 2711 or use the quote form with your term dates and we’ll plan around them.
Can you come to Congelow after we close?
Yes, we can come after you close and finish before you open. That way a site in Congelow doesn’t have to lose a day’s trading. Your opening times are the first thing we ask for.
How much does AHU cleaning cost in Congelow?
We don’t publish prices, because the cost depends on the job: the size of the system, its condition, access and when we can work. We fix the price before any work starts.
Will we get paperwork for the AHU clean?
Yes, both a certificate and a report with photos. It includes a recommended date for the next check.
Do you survey before quoting?
Yes. Photos often do the job, while bigger or harder-to-see systems are surveyed on site.
Can you clean the ducts connected to the AHU?
Yes. We reach the ducts through access panels, and any sections we cannot reach are noted in the report, with new panels fitted where necessary.
Which sectors do you work in?
We work for restaurants, pubs, hotels, schools, colleges, hospitals, care homes, offices and shops, plus food production and leisure sites.
Can you set up regular visits?
Yes. Tell us what you have and how it’s used, and we’ll suggest a schedule and quote for it.
How we price AHU cleaning
Sites vary more than people expect. The main factors:
- How big the system is
- Where the site is and how we reach it
- Access, including roofs, risers and ceiling voids
- The condition we find in the survey
One small site or a whole estate, the quote is built the same way: what needs doing, how we get to it and when. You’ll have a fixed price before any work starts.
Helping us quote
There’s no need for technical detail. It helps if you can send:
- Wide pictures of the system and the area around it
- Any symptoms, from odd noises to smells or leaks
- The paperwork from the last visit, if you have it
- The roof, plant room or outside wall the system runs to
For a fixed quote, call us on 0345 646 2711 or drop us a line and tell us the type of site, your opening hours and roughly what the system looks like. A few photos and your last certificate or report help a lot. You’ll normally have a quote within one working day.
What we’re called out for in Congelow
Mechanical servicing keeps a unit running, but it does not always include cleaning the inside. So a unit can be well maintained and still dirty.
These are the problems we see most often:
- Odours coming through the supply air
- Condensate trays that won’t empty
- Air handling units with blocked filters
- Dust-coated heating and cooling coils
Healthcare buildings such as Oakwood Hospital, about 4.3 miles north-east, depend on their ventilation; if you manage a surgery, clinic or care home near Congelow, yours matters too.
Before booking anyone
- Whether the quote is based on a survey or photos
- If the quote is a fixed price or an estimate
- Which accreditations they hold, and whether you can check them
- How VAT is shown on the quote
AHU cleaning in Congelow: local notes
There are about 3 schools, colleges and universities on the FSA’s food hygiene register within 1.5 miles or so of the middle of Congelow. Classrooms, bedrooms and care spaces are often served by ducted air, and that ductwork collects dust over time. Oakwood Hospital is the nearest hospital, about 4.3 miles north-east of Congelow. Hospitals show how much a building can rely on its ventilation, and smaller healthcare sites rely on theirs too. At about 30 miles from central London, Congelow sits well inside the area we cover. Evening, overnight and weekend visits are all possible.
In Congelow, we look inside the system before deciding what needs cleaning.
Congelow is about 5 miles south-west of Maidstone, in Kent. Sites in Congelow get the same service as everywhere we cover: a survey first, a fixed quote, work timed around your hours and a report with pictures. Our Kent coverage runs to 922 places, and Congelow is one of them.
AHU cleaning in ME18 is surveyed, quoted and booked the same way as anywhere else. We also cover Benover (1 mile south-east), Yalding (1 mile north), Laddingford (1 mile south-west), Hunton (1 mile east) and Nettlestead Green (1 mile north-west). Within a short drive, we also cover Maidstone (5 miles north-east), Sevenoaks (11 miles north-west), Royal Tunbridge Wells (9 miles south-west), Gravesend (15 miles north), Tonbridge (7 miles west) and Northfleet (15 miles north).
Local landmarks in Congelow
Around Congelow, our work takes us to kitchens and buildings near The Bull Public House and the streets around them. The nearest railway station is Yalding station, roughly 1 mile north-west of the centre. Well-known places in the area include Teapot Island (0.6 miles north-west) and Oakwood Hospital (4.3 miles north-east).
What we do, step by step
Each visit runs to the same pattern: sheeting and protection first, make the system safe, carry out the AHU cleaning, tidy up and hand over the paperwork. On site, the work takes from a few hours for a compact unit to a day or more for a large one. We agree a date with you, plan the drive to Congelow and turn up when the site is quiet.
- First the unit is surveyed, from pictures 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.
- Standing water and slime come out of the tray and the drain is checked.
- We close up the unit and send the certificate and before and after pictures.
How to prepare
- Tell us the best time to work, such as after service or at a weekend
- Allow time for equipment near the work to be turned off and cool down
- Find the previous report, if there is one
Getting a quote
There’s no standard price list, because every site is different. Instead, we look at your site first, from pictures or a survey, and then send you a fixed quote. To get going, give us a ring on 0345 646 2711 or email us.
Related advice
Staff cleaning versus specialist work
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 aren’t 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. Reaching it takes a specialist with the right equipment.