Essex · Air handling unit cleaning

Great Bentley AHU cleaning

Need AHU cleaning in Great Bentley? We diagnose first, fix the price and book the work around your hours, finishing with a written report and pictures.

  • Intake sections clogged with outdoor debris
  • Air handling units with blocked filters
  • Coils clogged with dust and debris

AHU cleaning near Great Bentley

About our AHU cleaning in Great Bentley

An air handling unit is the heart of a building’s ventilation: air is pulled in, filtered, conditioned and sent out through the ducts. Whatever builds up inside it travels with that air, so cleaning the unit matters as much as cleaning the ducts. Common call-outs are for dirty coils holding back the airflow and filters that are clogged or overdue, across drain trays, filter sections and heating and cooling coils.

Smaller buildings around Great Bentley often keep their ventilation units in a roof void or plant cupboard, where they’re easy to forget. Filters, coils and drain trays need attention whatever the size of the unit.

Accreditations are easy to claim and worth checking. Ours are BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease, plus CHAS, SafeContractor and ISO 9001, and we’re fully insured.

The Duct Doctor team standing beside their branded white and blue vans
Place
Great Bentley (CO7)
Region
Essex
Reporting
Photo report after every visit
Price
A fixed price before any work starts
Hours
When your site is closed, plus a 24/7 line
Telephone
0345 646 2711
Updated
30 October 2026

What affects the quote in Great Bentley

We do not publish a price list, because sites vary so much. The quote depends on:

  • The size of the system
  • When the work can happen, such as evenings, overnight or weekends
  • What state the system is in
  • Whether we need access equipment or extra panels

Every site is different, so we price each one individually. Size, access, the condition of the system and when we can work all play a part.

Asking for a quote

When you contact us, these details help:

  • The site address and the type of premises
  • Photos showing the whole system and its surroundings
  • Your last certificate, test record or report
  • Your opening hours and when the area is out of use

We do not publish a price list, because every site is different. Instead, we look at your site first, from photos or a survey, then send a fixed quote. To get going, call us on 0345 646 2711, or send details by email.

For landlords and multi-site operators

Records are where multi-site compliance often slips. Each visit produces a dated report with pictures, so you can show an insurer or inspector what was done at each site.

Where a tenant occupies the premises but the landlord owns the building, it’s worth checking the lease for who maintains the systems. We can quote either party, and the report can go to both.

What we are called out for in Great Bentley

Most units live out of sight on roofs, in plant rooms or in ceiling voids, so they’re easy to forget about. Months can pass without anyone looking inside.

Common reasons sites call us include:

  • Air handling units never cleaned inside
  • Dirty fans and fan housings
  • Coils clogged with dust and debris
  • Blocked condensate drains and slimy trays

If you manage offices or shops near Great Bentley station, their ventilation can be inspected and cleaned out of hours.

Comparing quotes

  • Whether a written report and pictures are included
  • What’s included in the scope, part by part
  • If they look at the system before pricing
  • If the quote is a fixed price or an estimate

Questions to ask before you book

Great Bentley buildings and their air

About 56 miles out from central London, Great Bentley is part of the South East area we work across. A survey and a fixed quote come first, then the visit at a time that suits you.

If you manage a school such as Great Bentley Primary School, ventilation cleaning is best booked for the holidays.

Great Bentley is about 5 miles north-west of Clacton-on-Sea, in Essex. Wherever you are in the CO7 postcode area, we can carry out AHU cleaning at your premises. Our Essex coverage runs to 644 places, Great Bentley among them. Our Chelmsford page covers sites nearby (26 miles or so).

Our technicians cover all of CO7 for AHU cleaning and the roads nearby. AHU cleaning is available to premises on Station Road, Forge Lane and Moors Close and the roads around them. Other places close to Great Bentley include Aingers Green (1 mile south), Frating Green (2 miles north-west), South Heath (2 miles south), Thorrington (2 miles south-west) and Frating (2 miles west). We also work in nearby towns such as Colchester (8 miles west), Clacton-on-Sea (5 miles south-east), Harwich (10 miles north-east), Camulodunum (9 miles west), Greenstead (6 miles north-west) and Tiptree (14 miles west).

What’s near Great Bentley

Typical jobs here are in premises near The Plough Inn. Great Bentley has its own railway station: Great Bentley station. Not far away are Weeleyhall Wood.

Map of Great Bentley © OpenStreetMap contributors

Great Bentley questions

Can you work in Great Bentley outside opening hours?

Yes, we can come after you close and finish before you open. The work in Great Bentley can fit around your hours. Just phone us on 0345 646 2711, or send details by email with your opening times and we will plan around them.

Is Great Bentley within the area you cover?

Yes, Great Bentley is part of our area, however small the site. Photos of the system and directions to the site help us plan the visit.

What is TR19?

TR19® is the BESA specification for keeping ventilation systems clean. TR19® Grease, a standalone specification since 2019, covers grease in kitchen extract systems, while TR19® Air covers other supply and extract ductwork.

What happens if you can’t reach some of it?

They’re listed in the report, never skipped quietly. You will know exactly which parts weren’t reached and why, and we can quote to improve the access.

Can you look after several sites?

Yes. You deal with one contact for every site across London and the South East, and visits can be set on a regular cycle.

Can you price the work without visiting?

Yes, if we can see what we need. Otherwise, we book a survey at a time that suits the site, then a fixed quote.

Do you offer emergency callouts?

Yes. Our emergency line runs 24/7 for anything that cannot wait until a planned visit. Ring any time and tell us what’s happened.

Will you repair the fan or motor?

We clean the unit and flag faults rather than repair them, with photos where it helps.

What your team can do, and what needs us

Logging matters as much as cleaning. A dated log of in-house cleaning and checks helps show that the system is managed between specialist visits, alongside our reports.

When your team notices a problem between visits, like drips, unusual noise, smells or damaged filters, they should report it rather than try to fix it. We can diagnose it and quote.

What happens if it’s left?

Dirty coils and fans make the unit strain to move the same air. That means more wear on the motor and rooms that feel less fresh, and a clean on your terms beats a breakdown on nobody’s. A planned visit to Great Bentley fits your hours; an emergency doesn’t.

Combining work into one visit or one programme often makes better use of the time. Tell us about everything you’d like looked at and we’ll price it together.

Why Great Bentley businesses choose us

  • Full insurance on every job
  • One contact for all your sites in London and the South East
  • Trading since 2009
  • Every visit written up, with photos

Read what affects the cost or our accreditations and certificates.

The process

Before we leave, we walk the area with whoever is on site. We point out anything that couldn’t be reached or needs a follow-up, and the same goes into the written report. The visit takes a single shift for a typical unit, longer for large or heavily soiled ones. Getting to the system matters more than parking in a place like Great Bentley, so let us know how to reach it.

  1. We survey the unit from pictures or on site and agree what’s included.
  2. With your site team, the unit is switched off and isolated, then the area around it protected.
  3. Filters are dealt with as agreed, and the coils, fan and casing cleaned.
  4. Standing water and slime come out of the tray and the drain is checked.
  5. You get a TR19® certificate and a photo report.

Before we arrive

  • Mention any locked doors, roof access or ceiling voids
  • Find the previous report, if there is one
  • Tell us the best time to work, such as after service or at a weekend

How to get a quote

Here’s what helps us quote: where the site is, what it is and its opening hours, photos of the system and any previous report or certificate. Then call us on 0345 646 2711, or send details by email.

Get a price

Advice

When it’s something else

An honest diagnosis matters more to us than a booking, so here’s what AHU cleaning will not do:

  • The supply and extract ducts, quoted separately
  • Mechanical faults with motors, belts or bearings
  • Coils that are corroded or leaking and need replacing

If you are not sure, just give us a ring on 0345 646 2711 or drop us a line and we’ll give you a straight answer before you book.

Where we work

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