Essex · Air handling unit cleaning

AHU Cleaning in Stow Maries

We cover Stow Maries for AHU cleaning. Fixed quotes, work around your opening hours and photo reports as standard.

  • Air handling units with blocked filters
  • Rooms that smell stuffy when the system runs
  • Fan sections that haven’t been cleaned in years

AHU cleaning in Stow Maries

AHU cleaning in Stow Maries

All the building’s air passes through the fan, so dirt on the impeller and housing gets spread around. Fan, housing and the surrounding panels are cleaned as part of the job, once the unit has been shut down and isolated. If you’re dealing with blocked condensate drains and slimy trays and dirty filters cutting the airflow, we can help, from internal panels, heating and cooling coils and supply and extract fans onwards.

Work in a small place like Stow Maries starts with agreeing access and timings.

We’re CHAS and SafeContractor accredited, we hold ISO 9001 and we are fully insured. On top of that, we’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, trading since 2009.

Before and after view down the inside of a rectangular extract duct
Location
Stow Maries (CM3)
Wider area
Essex
Reporting
Written report with photos
Quotes
Fixed quote, typically within a working day
When we work
Overnight and weekend work, 24/7 emergency callout
Telephone
0345 646 2711
Checked
30 October 2026

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.

Heating and cooling coils

Coil fins are close together and catch the dust the filters miss. We clean them with care so the fins aren’t damaged.

Fixed quotes for AHU cleaning in Stow Maries

The diagnosis comes before the price. The main factors are:

  • Whether several sites go on one quote
  • The condition of the system
  • Parking and loading at the site
  • Working hours and out-of-hours timing

The cost depends on the size of the system, the condition it’s in and how easy it is to reach. You get a fixed price before any work starts, so you know where you stand.

Helping us quote

When you contact us, it’s useful to have:

  • The site address and the type of premises
  • Your last certificate, test record or report
  • Photos showing the whole system and its surroundings
  • Close-ups of filters, grilles, hatches or access panels

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.

For landlords and multi-site operators

Facilities teams in offices, schools and healthcare sites book us too in Stow Maries and across Essex. Larger estates can be phased building by building around the people who use them.

We regularly work with managing agents. Send the address, what’s needed and how access works, and we’ll send a fixed quote.

The process

There are three stages on the day: set-up, the treatment itself and the sign-off. Getting ready means protecting surfaces and switching off what needs to be off, while signing off means the written report and pictures. The middle part takes longest, which takes half a day to a full day per unit, with large plant planned over several shifts. Somewhere like Stow Maries, lanes, gates and parking are worth mentioning in advance.

  1. We look at the unit and the plant area during the survey.
  2. The area is protected and the unit made safe.
  3. Dirt and debris are removed from each section.
  4. We clean the coils and clear the tray and drain.
  5. The unit is closed up and handed back, with a report to follow.

Before we arrive

  • Let us know about parking and loading
  • Arrange a key holder or contact on site
  • Let us know when the site is closed or quiet

Ask for a quote

There’s no standard price list, because every site is different. We look at your system first, from photos or on a visit, and then give you a fixed quote. To start, call us on 0345 646 2711, or send details by email.

Get a price

Related advice

Do you need AHU cleaning in Stow Maries?

It matters for two reasons: the unit supplies the air people breathe, and a dirty unit has to work harder. For anyone working, learning or staying in a building in Stow Maries, that is air they breathe for hours at a time.

Keep an eye out for these warning signs:

  • Debris and leaves in the fresh air intake
  • Plant that has been serviced but not cleaned
  • Air handling units due a clean after building work
  • Coils clogged with dust and debris

In Stow Maries, we look inside the system before deciding what needs cleaning.

What to look for in a quote

  • Whether VAT is included
  • Whether the whole system is included, or only the parts that are easy to reach
  • What paperwork you get at the end
  • Whether inaccessible sections are listed on the report

Our hiring checklist

Ventilation in Stow Maries buildings

About 34 miles out from central London, Stow Maries is part of the South East area we work across. We work evenings, overnight and at weekends, so the visit fits around the site.

For schools like Cold Norton Primary School, the holidays are the usual time to inspect and clean ventilation.

Stow Maries is about 5 miles south of Maldon, in Essex. Stow Maries gets the same approach as every site we work on: a survey first, a fixed quote, work timed around your hours and a report with photos. Stow Maries is one of 644 places in Essex where we work for AHU cleaning. Our Chelmsford page covers sites nearby, about 9 miles away.

All of CM3 is covered for AHU cleaning, from the main roads to the quietest streets. That includes premises on The Street, Church Lane and Woodham Road and nearby roads. Close by, we work in Great Canney (1 mile north), Cold Norton (1 mile north-east), Farther Howegreen (1 mile north-east), Howegreen (1 mile north) and North Fambridge (2 miles south-east). Larger places within reach include Chelmsford (9 miles north-west), Basildon (10 miles south-west), Brentwood (15 miles west), Maldon (5 miles north), Canvey Island (10 miles south) and Billericay (10 miles west).

Landmarks near Stow Maries

Around Stow Maries, our work takes us to kitchens and buildings near The Prince Of Wales Public House and William de Ferrers School, among other places. For rail, the closest station is North Fambridge station, about 1.7 miles south-east of the centre. Not far away are Stow Maries Halt.

Map of Stow Maries © OpenStreetMap contributors

When something else is needed

We’ll always give you a straight diagnosis, so here’s what this work cannot put right:

  • Leaking heating or cooling coils
  • A system that is undersized for the building
  • Faulty motors, drives or bearings

If in doubt, call us on 0345 646 2711 or send us an email and we’ll say what we think before you book.

What we work on in Stow Maries

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

FAQs for Stow Maries

Can you come to Stow Maries after we close?

Yes, we can come after you close and finish before you open. It means the site in Stow Maries keeps running as normal. Just give us a ring on 0345 646 2711 or email us with your opening times and we’ll plan around them.

Can you get to a site in Stow Maries?

Yes. Stow Maries is within the area we cover across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.

What does AHU cleaning cost?

Size, condition, access and working hours all affect the cost. Call for a fixed quote and we’ll typically reply within one working day.

What about areas you can’t get to?

Anything we can’t reach goes on the report, with a note of where it is, and we explain what access is needed, for example new access panels.

How do you protect the area?

Protection goes down first: sheeting over floors, worktops and anything close to the work. The area is left tidy, with our waste taken away.

Do you offer emergency callouts?

Yes, 24/7. Our office is open from 8am to 6pm on weekdays, with the emergency line covering every other hour.

What do you clean inside the unit?

Filters, coils, drain trays, the fan and the internal surfaces are all covered. Filters are cleaned or changed as agreed in the quote.

Does the AHU have to be shut down for cleaning?

Yes. We cannot clean a running unit, so it’s switched off and made safe first. The shutdown is planned with whoever runs the building.

Looking after it afterwards

Think of this as the after-treatment advice, in brief:

  • Keep filter changes on time and recorded
  • Note any water around the unit or leaks below it
  • Don’t ignore odours coming through the grilles
  • Make sure condensate is draining away

The report suggests a date for the next inspection or clean, based on what we found. TR19® Air is risk-based, so the interval depends on the unit and how the building is used.

Make the drain tray part of every maintenance visit. Catching a slow drain early stops standing water building up.

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