Kent · Air handling unit cleaning
Air handling unit cleaning in South Street, Kent
AHU cleaning in South Street from ventilation hygiene specialists trading since 2009. Out-of-hours visits and 24/7 emergency callout.
- Condensate trays that will not empty
- Dirty fans and fan housings
- Plant that needs cleaning after a refit
AHU cleaning for kitchens and businesses in South Street
Our AHU cleans for sites in South Street cover the parts that collect dirt: filters, coils, drain trays, fans and the internal panels. Every clean comes with a TR19® certificate and before and after pictures in a report. The work covers dampers and louvres, filter sections and supply and extract fans, and the jobs we see most are dirty fans and fan housings and units that have only ever had filter changes.
For a building in or near South Street, access is agreed in advance and the visit is planned around the journey.
Insurers, fire officers and environmental health officers all look at records. That’s why every job is written up in a report with photos, plus a TR19® certificate through the BESCA VHE portal where the work is a TR19® Grease clean.
- Location
- South Street (DA13)
- Wider area
- Kent
- Records
- Photo report after every visit
- Quotes
- A fixed price before work begins
- When we work
- Overnight and weekend work, 24/7 emergency callout
- Call
- 0345 646 2711
- Updated
- 30 October 2026
When it’s something else
We will always give you a straight diagnosis, so here’s what AHU cleaning won’t do:
- Ventilation that was badly designed in the first place
- Problems with the unit’s controls or sensors
- Faulty motors, drives or bearings
Not sure which it is? You can give us a ring on 0345 646 2711 or email us and we’ll tell you honestly.
Parts of the system we cover
- Supply and extract fans
- Internal panels
- Heating and cooling coils
- Filter sections
- Drain trays
- Dampers and louvres
Ventilation in South Street buildings
At about 22 miles from central London, South Street sits well inside the area we cover. A survey and a fixed quote come first, then the visit at a time that suits you.
If you manage a school such as Culverstone Green Primary School, ventilation cleaning is best booked for the holidays.
South Street is about 6 miles south of Gravesend, in Kent. Every kind of commercial site in South Street, we can take on AHU cleaning. Visits can be booked for evenings, overnight or weekends so trading is not interrupted. 922 places in Kent are on our list, from busy centres to quieter spots. We also work in Maidstone, around 10 miles away.
Work in DA13 is surveyed, quoted and booked the same way as anywhere else. We cover sites on South Street and Chapman's Hill and nearby roads. We also cover New Street (1 mile west), Priestwood Green (1 mile east), Culverstone Green (1 mile south), Harvel (1 mile south-east) and Priestwood (1 mile east). We also work in nearby towns such as Maidstone (10 miles south-east), Dartford (8 miles north-west), Sevenoaks (9 miles south-west), Royal Tunbridge Wells (15 miles south), Gravesend (6 miles north) and Tonbridge (11 miles south).
Around South Street
In South Street, that means kitchens and buildings near Trosley Country Park and Meopham School. The nearest railway station is Meopham station, about 2.4 miles north of the centre. A little further out are Leybourne Castle (4.5 miles south-east) and Coldrum Long Barrow (2.3 miles south-east).
Leave it or put it right?
A light clean now is simpler than a heavy one later. Leave it for years and dirt bakes onto coils and casings, especially where there’s been moisture. With notice, the visit to South Street can be fitted around your bookings and events.
One small site or a whole estate, the quote is built the same way: the work involved, the access and the timing. The price is fixed before work begins.
Why us?
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
- Photo reports with every job
- Ventilation hygiene specialists since 2009
- Accredited under CHAS and SafeContractor, with ISO 9001
Read how cleaning jobs are priced and how to check a contractor.
The process
At the end of the visit, someone from your team can look over the work with us. Anything we couldn’t reach or that needs attention is pointed out there and then, and it goes on the report too. The visit takes half a day to a full day per unit, with large plant planned over several shifts. Rural roads and tight entrances are worth telling us about before a visit to South Street.
- The survey covers the unit, its access and how it can be shut down.
- The area is protected and the unit made safe.
- Each section is cleaned of dust, debris and slime.
- Coils and trays are cleaned and the condensate drain cleared.
- The unit is closed up and handed back, with a report to follow.
Before we arrive
- Let us know about parking and loading
- Mention any sign-in, permit or induction we need
- Allow time for equipment near the work to be turned off and cool down
Ask for a quote
The quickest way to a quote is to send photos: 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.
Read more
What your team can do, and what needs us
A few tasks are always specialist work: opening up ductwork, cleaning fans, drop testing fire dampers and measuring grease call for the right kit, training and safe access. That’s our job.
If your staff spot something between visits, like drips, unusual noise, smells or damaged filters, it’s best reported rather than tackled in-house. We’ll take a look and send you a fixed quote.
Fixed quotes for AHU cleaning in South Street
Sites vary more than people expect. The main factors:
- When the work can happen, such as evenings, overnight or weekends
- One-off work versus a regular cycle
- The size of the system
- Site rules, permits and inductions
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 play a part.
What we need to know
What to send for a quote:
- Your opening hours and when the area is out of use
- A few general shots of the system
- Close-ups of filters, grilles, hatches or access panels
- Any symptoms, from odd noises to smells or leaks
If you need AHU cleaning in South Street, call 0345 646 2711 or send us an email. Tell us what kind of premises it is and when it’s open, plus pictures or the previous report if they’re to hand. We typically send a fixed quote within one working day.
What we’re called out for in South Street
Filters catch most of the dust, but not all of it. What gets through settles on coils, fans and the inside of the casing, a little more each month.
Clients usually contact us after spotting something like this:
- Air handling units with blocked filters
- Leaves and litter drawn into the unit
- Dust-coated heating and cooling coils
- Plant that needs cleaning after a refit
For buildings in and around South Street, TR19® Air cleaning starts with an inspection.
Questions to ask before booking
- Whether they’re fully insured
- If the quote is a fixed price or an estimate
- What happens if part of the system can’t be accessed
- What hours they’ll be on site
Common questions in South Street
Can you come to South Street after we close?
Yes, nights and weekends are routine for us. The work in South Street can fit around your hours. Let us know the hours you’re closed and we will book within them.
Can a school’s ventilation in South Street be done out of term time?
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 South Street. You can give us a ring on 0345 646 2711 or send us an email with the dates the site is empty.
Do you offer emergency callouts?
Yes, any time. For anything urgent, such as a fan failure or damage after a fire, ring the 24/7 line and we will talk you through the next steps.
Which accreditations do you hold?
Duct Doctor is a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we are fully insured.
Are you insured?
Yes. Duct Doctor is fully insured, and the details are available on request.
What types of premises do you cover?
All kinds of commercial and public premises: kitchens, offices, schools, healthcare, retail, leisure and food production. Work is timed around how each site runs.
Is South Street in your area?
Yes. We cover South Street and the rest of Kent, as part of our work across South East England and London. To book, call us on 0345 646 2711, or send details by email.
How much notice do you need?
That depends on the slot you want and the size of the job. Tell us your preferred dates when you ask for a quote, and if it’s an emergency, call us any time.
Also near South Street
Other services in South Street
Looking after it afterwards
How long the results last depends on use and care. Here’s what we suggest:
- Report water on the plant room floor
- Flag stale or damp smells in the supply air
- Stick to the filter change plan
- Make sure condensate is draining away
You receive a TR19® certificate and a photo report after the clean. Keep both with the building’s maintenance records.
Keep the area around the intake clear. What’s near the intake ends up in the unit.