Kent · Air handling unit cleaning

AHU Cleaning in Clement Street

Looking for AHU cleaning in Clement Street? We survey first, give you a fixed quote and work around your opening hours, then sign off with a report and pictures.

  • Units needing a clean before a new tenant or handover
  • Odours coming through the supply air
  • Units that have only ever had filter changes

Need AHU cleaning in Clement Street?

Fixed quotes for AHU cleaning in Clement Street

The survey tells us what the work involves. We look at:

  • The condition we find in the survey
  • The size of the system
  • Any permits to work or inductions
  • The times the site is available

Several systems or sites on one quote often makes better use of the time. Tell us about everything you’d like looked at and we’ll price it together.

What we need to know

The more you tell us, the more accurate the quote. With your enquiry, please include:

  • A few general shots of the system
  • How we’d reach plant on a roof or in a plant room
  • Where the site is and what kind of site it is
  • Your opening hours and when the area is out of use

We do not publish a price list, because no two systems are the same. Instead, we look at your site first, from pictures or a survey, then send a fixed quote. To start, call 0345 646 2711 or use the quote form.

How we handle AHU cleaning in Clement Street

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. Common call-outs are for plant that needs cleaning after a refit and dirty fans and fan housings, across heating and cooling coils, filter sections and internal panels.

In rural areas, ventilation units are often in roof voids or outbuildings, where filters and drain trays get forgotten.

The paperwork matters as much as the work. You get a written report with photos after each visit, covering the work done, any areas we couldn’t access and a recommended next date. File it in your maintenance log so it’s ready for an insurer, fire officer or EHO.

Place
Clement Street (BR8)
Region
Kent
Reporting
Photo report after each visit
Quotes
A fixed price before any work starts
Working hours
After hours by arrangement; emergencies any time
Telephone
0345 646 2711
Updated
30 October 2026
Before and after view down the inside of a rectangular extract duct

What we do, step by step

When we arrive, we check the system against the survey or the pictures you sent. Anything unexpected is raised with you before we go further. From there, it takes one overnight shift for many single units, with bigger plant phased. Somewhere like Clement Street, lanes, gates and parking are worth mentioning in advance.

  1. We look at the unit and the plant area during the survey.
  2. We sheet the area and the unit is isolated.
  3. Dirt and debris are removed from each section.
  4. Coils and trays are cleaned and the condensate drain cleared.
  5. We close every panel, hand the unit back and send the report and certificate.

Preparing for the visit

  • Let us know how we reach the system, including roofs, risers and plant rooms
  • Make sure someone can let us in and lock up afterwards
  • Let us know about parking and loading

Getting a quote

Here’s what helps us quote: the address, the type of site and when it’s open, a few photos and any previous report or certificate. Then ring 0345 646 2711, or email photos.

Get a price

Read more

For landlords and multi-site operators

Running several sites is easier with one contractor. We cover South East England and London, so a run of sites can go into one programme and kept on a regular cycle.

Under the Regulatory Reform (Fire Safety) Order 2005, the responsible person must assess and reduce fire risk, and that can be the employer, the owner, a landlord, a facilities manager or a managing agent. With shared responsibility, good records help everyone.

Signs you need AHU cleaning in Clement Street

Planned maintenance often covers belts, motors and filters but not cleaning. That means a unit can tick every service box and still be carrying years of dirt.

The symptoms we’re asked about most are:

  • Condensate trays that will not empty
  • Air handling units never cleaned inside
  • Intake sections clogged with outdoor debris
  • Coils clogged with dust and debris

If you manage a school such as Sutton-At-Hone Church of England Primary School, ventilation cleaning is best booked for the holidays.

Questions to ask before booking

  • Whether the quote shows VAT
  • How areas they cannot reach will be recorded
  • What hours they’ll be on site
  • When the next visit should be, and why

How to choose an extract cleaning contractor

Common questions in Clement Street

Do you work in villages like Clement Street?

Yes, smaller places are covered as well as towns. Just mention lanes, gates or anything else about the site when you book.

Can you clean school ventilation in Clement Street during the holidays?

Yes, holiday work suits schools best. Food Standards Agency records list about 7 schools, colleges and universities with registered kitchens within about a mile and a half of Clement Street. Tell us your holiday dates and we’ll book the visit for when the site is empty.

Do you repair air handling units?

AHU cleaning is what we offer here, not mechanical repairs. If we spot a fault, we note it in the report for your maintenance team to follow up.

Will the ventilation be off while you clean?

Yes. The unit has to be shut down and isolated before it’s opened. We agree the timing with your site team.

Which accreditations do you hold?

We hold CHAS, SafeContractor and ISO 9001, alongside BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease. Vent Hygiene Elite is run by BESCA and independently audited.

What do you clean inside the unit?

Everything inside the unit that air passes over, from intake to discharge, including coils, fan and drain trays. The photo report shows each section before and after.

Can you price the work without visiting?

Yes, for many jobs. Send wide shots, close-ups of any access panels and anything that worries you, and we typically come back within one working day. Some sites still need a visit, and we’ll say so.

Do you do ventilation duct cleaning too?

Yes, the ductwork, grilles and diffusers the unit serves. The survey shows whether the ducts need cleaning now.

Aftercare tips

Looking after the system between visits is straightforward, and it makes the next visit easier:

  • Keep inspection doors on the unit in good order
  • Plan the next inspection before the last report gets filed away
  • Note any water around the unit or leaks below it
  • Keep filter changes on time and recorded

The report shows each section of the unit before and after, along with anything we couldn’t reach. Any defects we noticed, like a leaking tray or damaged lining, are listed.

Change or clean filters on time. Overloaded filters let more dirt through to the coils and fan.

When it’s something else

Not every problem is solved by AHU cleaning, and we’d rather say so up front. It doesn’t solve:

  • Ductwork downstream of the unit, which is a separate clean
  • Building management system faults
  • Mechanical faults with motors, belts or bearings

If in doubt, give us a ring on 0345 646 2711 or drop us a line and we’ll say what we think.

Where we work

  • Supply and extract fans
  • Filter sections
  • Heating and cooling coils
  • Internal panels
  • Drain trays
  • Dampers and louvres

Staff cleaning versus specialist work

Keep a record of what your team does. A simple log of filter washes, wipe-downs and checks shows an inspector that the system is looked after between visits, next to our reports.

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. Leave those to us.

AHU cleaning around Clement Street

Going by the FSA’s register, there are about 7 schools, colleges and universities and about 16 caring premises (care homes, nurseries and hospitals) serving food across Clement Street and its immediate surroundings (about a mile and a half). Where buildings like these have air handling units, filters, coils and drain trays need regular attention. West Hill Hospital is the nearest hospital, about 2.2 miles north of Clement Street. Healthcare ventilation is a good example of why supply ducts need inspecting: the air goes straight to patients. At about 14 miles from central London, Clement Street sits well inside the area we cover. The visit is fixed around your opening hours, not ours.

Healthcare buildings such as West Hill Hospital, about 2.2 miles north, depend on their ventilation; if you manage a surgery, clinic or care home near Clement Street, yours matters too.

Clement Street is about 2 miles south of Dartford, in Kent. Whatever kind of site you run in Clement Street, AHU cleaning is something we can help with. We can work out of hours so the site keeps running. Clement Street is one of 922 places in Kent we cover for AHU cleaning. Our London page covers sites nearby, about 14 miles away.

Work in BR8 is surveyed, quoted and booked the same way as anywhere else. Close by, we work in Hawley (1 mile north-east), Sutton at Hone (1 mile east), South Darenth (2 miles south-east), Darenth (2 miles east) and St Margarets (2 miles east). We also work in nearby towns such as Sevenoaks (9 miles south), Gravesend (7 miles east), Tonbridge (15 miles south), Northfleet (6 miles east), Kings Hill (13 miles south-east) and Swanscombe (4 miles north-east).

Around Clement Street

We work in commercial kitchens and buildings around Dartford Heath, Wilmington Academy and The Plough pub. For rail, the closest station is Farningham Road station, about 1.3 miles south-east. Nearby you will also find Eynsford Castle (3 miles south) and West Hill Hospital (2.2 miles north). Open spaces near Clement Street include Wansunt Pit.

Map of Clement Street © OpenStreetMap contributors
BESCA Vent Hygiene EliteMember, cleaning to BESA TR19® Grease
CHAS · SafeContractorISO 9001 and fully insured
Certificate and photo reportWith every clean
24/7 emergency calloutEvenings, nights and weekends
Since 2009South East England and London