Essex · Air handling unit cleaning
AHU Cleaning in Cannon's Green
AHU cleaning for Cannon's Green, with a survey first and a report with pictures at the end. Ask us for a fixed quote.
- Units that have only ever had filter changes
- Debris and leaves in the fresh air intake
- Coils clogged with dust and debris
About our AHU cleaning in Cannon's Green
Our AHU cleans for sites in Cannon's Green cover the parts that collect dirt: the filter section, heating and cooling coils, drain trays, fan and casing. You get a TR19® certificate and a photo report showing the unit before and after. If you have air handling units never cleaned inside and debris and leaves in the fresh air intake, we can put it right, from drain trays, filter sections and dampers and louvres onwards.
For a building in or near Cannon's Green, 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.
For insurers and inspectors, the record counts. So every job comes with a written report and photos, and grease extract cleans come with a TR19® certificate issued through the BESCA Vent Hygiene Elite portal.
- Place
- Cannon's Green (CM5)
- Region
- Essex
- Records
- Photo report after every visit
- Quote
- A fixed quote up front
- When we work
- Evenings, overnight and weekends; 24/7 emergencies
- Call
- 0345 646 2711
- Checked
- 30 October 2026
What we’re called out for in Cannon's Green
Most units live out of sight on roofs, in plant rooms or in ceiling voids and are rarely seen by anyone but maintenance staff. It’s easy for a long time to go by without anyone opening the panels.
These are the problems we see most often:
- Coils clogged with dust and debris
- Blocked condensate drains and slimy trays
- Filters that are clogged or overdue
- Plant that needs cleaning after a refit
An inspection comes first for any ventilation job around Cannon's Green, so the cleaning matches what’s there.
Questions to ask before you book
- Whether the quote shows VAT
- Whether the price is fixed
- How they set the interval to the next visit
- Whether the whole system is included, or only the parts that are easy to reach
Also near Cannon's Green
Also in Cannon's Green
How the visit works
Your trading hours come first. We book the visit for a time the area is closed, whether that is an evening, overnight or a weekend. Once we are in, the area is sheeted and anything that has to be off is turned off and cooled, and the job takes from a few hours for a compact unit to a day or more for a large one. The timing of a visit to Cannon's Green is set by you, and the travel is our side of the planning.
- First we agree when the unit can be switched off, including evenings or weekends.
- We take before photos of each section of the unit.
- Filters, coils and internal surfaces are cleaned from intake to discharge.
- The fan and drain tray are cleaned and the drain checked.
- After pictures are taken and the certificate issued.
Getting ready for the visit
- Tell us the best time to work, such as after service or at a weekend
- Make sure equipment near the work can be switched off and left to cool
- Let us know how we reach the system, including roofs, risers and plant rooms
Get a fixed quote
For a fixed quote, call us on 0345 646 2711, or email photos with the site type, your trading hours and a short description of the system. Photos and the last report, if you have one, make the quote quicker. We typically come back within one working day.
Advice
Cannon's Green: your questions answered
Will you come out to Cannon's Green?
Yes, smaller places are covered as well as towns. The journey is planned ahead, so a few details about the route help.
Do you offer AHU cleaning in Cannon's Green?
Yes, Cannon's Green is covered. Get in touch with the details and we’ll arrange a survey.
What do you do with what you remove?
We contain it and take it with us. We collect grease, debris and waste water as we go rather than letting it spread.
What should I send you?
Some photos and a quick description of the system plus the address and your hours. If we need more, we will ask.
How do you keep the site clean during the work?
By covering it before any work starts. We keep the work contained and leave the area clean.
Does the AHU have to be shut down for cleaning?
Yes. The fan must be stopped and the unit isolated, and we time the work to suit the site.
Do you repair air handling units?
Mechanical repairs to the unit are for your HVAC maintenance contractor. We clean the unit and report anything we see that needs attention.
Do you clean the ductwork as well?
Yes, supply and extract ducts, grilles and diffusers. We’ll tell you after the survey whether the ducts need it.
Looking after it afterwards
Think of this as the after-treatment advice, in brief:
- Book the next check in line with the report
- Keep filter changes on time and recorded
- Check the drain tray is emptying during routine visits
- Flag stale or damp smells in the supply air
You receive a TR19® certificate and a photo report after the clean. Keep both with the building’s maintenance records.
Regular filter changes are the best protection an AHU has. Overloaded filters let more dirt through to the coils and fan.
What AHU cleaning looks like in Cannon's Green
About 23 miles out from central London, Cannon's Green 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.
Wherever a school like The Ongar Academy has ducted ventilation, a half-term visit keeps the work out of lesson time.
Cannon's Green is about 7 miles east of Harlow, in Essex. Whatever kind of site you run in Cannon's Green, we can take on AHU cleaning. We can work out of hours so trading is not interrupted. Cannon's Green is one of 644 places in Essex where we work for commercial clients. You can also see our page for Chelmsford, roughly 9 miles from Cannon's Green.
Work in CM5 follows the same survey, fixed quote and written report as everywhere else we cover. We also cover Fyfield (1 mile north-west), Clatterford End (1 mile north-west), Norton Mandeville (1 mile south), Norwood End (1 mile north) and High Ongar (2 miles south). Within a short drive, we also cover Chelmsford (9 miles east), Basildon (14 miles south-east), Harlow (7 miles west), Brentwood (7 miles south), Billericay (10 miles south-east) and Loughton (11 miles south-west).
Around Cannon's Green
Locally, jobs take us to businesses close to Queens Head Public House, among other places. Nearby you’ll also find Willingale Doe (2 miles north-east).
Why act early in Cannon's Green
A clean unit feeds cleaner air into the ductwork, so the whole system stays cleaner for longer. It also means the next inspection has less to find. Our emergency line runs 24/7, but a planned visit to Cannon's Green is calmer for everyone.
The price reflects the work, not guesswork. That’s why we survey first, from photos or on site, and why the quote is fixed before we start.
Why Cannon's Green businesses choose us
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
- Every job surveyed first
- One number for every site across the South East and London
- A fixed price before any work starts
How we price AHU cleaning
We quote each job individually. These are the things that affect it:
- A single visit or a regular plan
- Where the site is and how we reach it
- The condition of the system
- Access, including roofs, risers and ceiling voids
Leaving it longer rarely makes the work cheaper. Problems in a system tend to grow, and a neglected system can mean more work. If you are not sure what’s needed, phone us on 0345 646 2711 or drop us a line for straight advice and a fixed quote.
Asking for a quote
Many jobs can be priced from photos and some basics. Send what you can of the following:
- The roof, plant room or outside wall the system runs to
- A few general shots of the system
- The paperwork from the last visit, if you have it
- Any access panels or hatches you can see
We do not publish a price list, because every site is different. We look at your system first, from pictures or on a visit, and then send you a fixed quote. To start, call us on 0345 646 2711, or email photos.
Different parts, different methods
Fans and fan sections
The fan section is cleaned with the unit switched off and isolated in agreement with the site.
Heating and cooling coils
Cooling coils stay damp in use, so dirt on them can turn sticky. The coil and its drain tray are cleaned as one job.
When something else is needed
AHU cleaning cannot fix everything, and we’d rather say so up front. It does not solve:
- Mechanical faults with motors, belts or bearings
- A system that is undersized for the building
- Problems with the unit’s controls or sensors
Not sure which it is? You can ring 0345 646 2711, or send details by email and we will tell you honestly before booking.
Parts of the system we cover
- Drain trays
- Filter sections
- Heating and cooling coils
- Internal panels
- Supply and extract fans
- Dampers and louvres