Essex · Air handling unit cleaning
Air handling unit cleaning in Lower Green, Essex
Air handling unit cleaning for businesses, landlords and public buildings in Lower Green. BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease.
- Dust built up on fan impellers
- Plant that needs cleaning after a refit
- Odours coming through the supply air
Common problems we fix in Lower Green
Filters catch most of the dust, but not all of it. The fine dust that passes the filters lands on the coils, the fan and the internal panels, building up layer by layer.
If you notice any of these, it’s worth a diagnosis:
- Plant that needs cleaning after a refit
- Air handling units never cleaned inside
- Drain trays holding standing water
- Dust built up on fan impellers
For sites in and around Lower Green, the units and the ductwork are both looked at.
Comparing quotes
- What insurance they carry
- What paperwork you get at the end
- If they look at the system before pricing
- Whether the quote shows VAT
AHU cleaning in Lower Green, done properly
The fan pushes every bit of air in the system, 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. The work covers internal panels, filter sections and heating and cooling coils, and people most often call us about fan sections that haven’t been cleaned in years and dirty filters cutting the airflow.
For a building in or near Lower Green, 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 is why every job is written up in a report with pictures, plus a TR19® certificate through the BESCA VHE portal where the work is a TR19® Grease clean.

- Location
- Lower Green (CB11)
- Region
- Essex
- Paperwork
- Written report with pictures
- Quote
- Fixed quote, typically within a working day
- When we work
- Nights, weekends or holidays to suit you
- Telephone
- 0345 646 2711
- Page updated
- 30 October 2026
Nearby places to Lower Green
More services for Lower Green
Why act early in Lower Green
Stuffy rooms and stale smells in a building in Lower Green can sometimes be traced back to the AHU. Cleaning it deals with the cause rather than the symptom. Out of sight is the usual reason a rural system goes too long without attention.
Putting the work off seldom saves money. Problems in a system tend to grow, which can make the next visit longer. If you’re unsure, call 0345 646 2711 or use the quote form and we’ll give you an honest view and a fixed quote.
Why Lower Green businesses choose us
- Full insurance on every job
- Fixed quotes from a survey or pictures
- One number for every site across the South East and London
- Accredited under CHAS and SafeContractor, with ISO 9001
Read what affects the cost or our accreditations.
In-house cleaning or a specialist?
Staff cleaning does not replace a specialist visit; it supports it. Regular in-house cleaning slows the build-up, but the parts you can’t see still need a specialist at the right interval.
Your own staff can handle the daily basics: wiping canopies, washing grease filters and recording it in a log. What they can’t safely do is clean inside the ductwork, the fan or the risers, which is where we come in.
What AHU cleaning looks like in Lower Green
We cover Lower Green, about 35 miles from central London, as part of our work across London and the South East. We work evenings, overnight and at weekends, so the visit fits around the site.
Ventilation work in and around Lower Green is risk-based: inspect, then clean what needs it.
Lower Green is in Essex. Whether your site is in the middle of Lower Green or further out, AHU cleaning is available to all kinds of commercial premises, from a single unit to a large public building. Lower Green is one of 644 places in Essex we cover for AHU cleaning. Our Chelmsford page covers sites nearby (24 miles or so).
Work in CB11 is surveyed, quoted and booked the same way as anywhere else. Local streets include Park Lane and Waterwick Hill, and we cover them all for AHU cleaning. Close by, we work in Anstey (2 miles south-west), Brent Pelham (2 miles south), Daw's End (2 miles south-west), Great Hormead (4 miles south-west) and Furneux Pelham (4 miles south). Larger places within reach include Harlow (15 miles south), Saffron Walden (7 miles east), Great Dunmow (14 miles south-east), Stansted Mountfitchet (8 miles south-east), Newhall (15 miles south) and Elsenham (8 miles south-east).
Near you in Lower Green
A little further out are The Warren (1 mile west).
What affects the cost of AHU cleaning
Some jobs are bigger than they look, and some smaller. The main factors:
- The size of the system
- What state the system is in
- Site requirements such as sign-in and permits
- Whether we need access equipment or extra panels
The cost depends on how big the system is, the condition it’s in and how easy it is to reach. We give you a fixed price before work begins, so you know where you stand.
What to send for a quote
We can often survey from pictures. Try to include:
- When the site is open and when it’s quiet
- The roof, plant room or outside wall the system runs to
- Anything you’ve noticed, such as smells, noise, drips or poor airflow
- The site address and the type of premises
Quoting starts with a diagnosis, either from photos and details you send or from a site visit. Then we send a fixed price, before we start.
Your questions about AHU cleaning in Lower Green
Can you come to Lower Green after we close?
Yes, nights and weekends are routine for us. The work in Lower Green can fit around your hours. Your opening times are the first thing we ask for.
Will you come out to Lower Green?
Yes, Lower Green is part of our area, however small the site. The journey is planned ahead, so a few details about the route help.
What accreditations do you have?
CHAS, SafeContractor, ISO 9001 and BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease. We have been trading since 2009 and we’re fully insured.
Will you repair the fan or motor?
The clean includes noting faults, but repairs sit with your maintenance contractor, with pictures where it helps.
How much does AHU cleaning cost?
The cost depends on the size of the system, its condition, access and timing. Call for a fixed quote and we will typically reply within one working day.
Do you look at the system first?
Yes. We always survey first, from your pictures and details, or with a visit where necessary. Then you get a fixed quote.
What information do you need?
A short description and a few photos plus the address and your hours. If we need more, we’ll ask.
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’ll advise on what to do next.
For landlords and multi-site operators
When the building owner and the occupier are different, it’s worth checking the lease for who maintains the systems. We are happy to deal with either side, and the report can go to both.
For anyone managing more than one site, we can plan visits across the whole estate and price them together. Each site gets its own report and photos, so each one has its own record.
How the visit works
Night work is normal for us. Evenings, nights and weekends are when much of our work happens, so the site can open as normal afterwards. On site, the work takes half a day to a full day per unit, with large plant planned over several shifts. A quick note on how to find the site and where to park makes a visit to Lower Green run smoothly.
- The survey covers the unit, its access and how it can be shut down.
- The area is protected and the unit made safe.
- Dirt and debris are removed from each section.
- Coils and trays are cleaned and the condensate drain cleared.
- The unit is closed up and handed back, with a report to follow.
Getting ready for the visit
- Allow time for equipment near the work to be turned off and cool down
- Move anything stored near the system
- Agree a time when the area can be out of use
Get a fixed quote
Here’s what helps us quote: the address, the type of site and when it’s open, pictures of the system and the last certificate or report, if there is one. Then phone us on 0345 646 2711, or send details by email.
Read more
Between visits
Results last longer with the right care. Here’s what we suggest:
- File each AHU report in the maintenance log
- Keep filter changes on time and recorded
- Plan the next inspection before the last report gets filed away
- Clear leaves and litter away from the intake
Photos in the report cover the filters, coils, drain tray, fan and casing, along with anything we couldn’t reach. It also notes faults we spotted, such as damaged panels or a blocked drain.
Make sure access doors and panels on the unit open easily. If a section is hard to get into, it tends not to get checked.