Essex · Air handling unit cleaning
Great Warley AHU cleaning
Need AHU cleaning in Great Warley? We survey first, send you a fixed quote and work around your opening hours, finishing with a written report and pictures.
- Dirty filters cutting the airflow
- Leaves and litter drawn into the unit
- Fan sections that haven’t been cleaned in years
Looking after it afterwards
Once we have finished, these simple steps help:
- Diary the inspection date recommended in the report
- Check the drain tray is emptying during routine visits
- Do not store bins or materials near the intake
- Store the TR19 paperwork where auditors can find it
Photos in the report cover the filters, coils, drain tray, fan and casing, and note any part we couldn’t get to. Any defects we noticed, like a leaking tray or damaged lining, are listed.
Check drain trays and condensate drains during routine maintenance. Catching a slow drain early stops standing water building up.
How we handle AHU cleaning in Great Warley
Every supply and extract system relies on the air handling unit at its centre: air is pulled in, filtered, conditioned and sent out through the ducts. Anything that collects inside the unit can end up in the rooms it serves, which is why we clean the unit itself, not just the ducts. Typical jobs include odours coming through the supply air and units that have only ever had filter changes, across internal panels, filter sections and supply and extract fans.
For a building in or near Great Warley, access is agreed in advance and the visit is planned around the journey.
It’s worth checking any contractor’s accreditations. Ours are BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease, plus CHAS, SafeContractor and ISO 9001, and we’re fully insured.
- Where
- Great Warley (CM13)
- Wider area
- Essex
- Records
- Photo report after every visit
- Quotes
- A fixed quote up front
- When we work
- Overnight and weekend work, 24/7 emergency callout
- Telephone
- 0345 646 2711
- Reviewed
- 30 October 2026
Multi-site and managed buildings
Facilities teams in offices, schools and healthcare sites book us too in Great Warley and across Essex. Work can be phased by floor, building or site to keep disruption down.
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 send the paperwork to whoever needs it.
How the visit works
A visit follows the same order every time: sheeting and protection first, make the system safe, do the work, tidy up and hand over the paperwork. On site, the work takes from a few hours for a compact unit to a day or more for a large one. If the van will struggle with a lane or gateway near Great Warley, let us know and we will plan around it.
- We look at the unit and the plant area during the survey.
- The area is protected and the unit made safe.
- Dirt and debris are removed from each section.
- We clean the coils and clear the tray and drain.
- The unit is closed up and handed back, with a report to follow.
Getting ready for the visit
- Clear the space around the work
- Let us know about parking and loading
- Find the previous report, if there is one
Getting a quote
For AHU cleaning in Great Warley, ring 0345 646 2711 or use the quote form. Tell us what kind of premises it is and when it’s open, and send photos or your last report if you can. A fixed quote usually follows within one working day.
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What AHU cleaning can’t fix
In fairness, some problems need a different fix:
- Damaged coils beyond cleaning
- Faulty motors, drives or bearings
- Airflow problems caused by the system’s design
If in doubt, give us a ring on 0345 646 2711 or email us and we’ll say what we think before you book.
Where we work
- Supply and extract fans
- Heating and cooling coils
- Dampers and louvres
- Internal panels
- Drain trays
- Filter sections
Great Warley questions
Can a school’s ventilation in Great Warley be done out of term time?
Yes, holiday work suits schools best. The FSA’s register shows about 5 schools and colleges with food registrations within roughly a mile and a half of Great Warley. Booking early in the term gives the best choice of holiday dates.
Will you come out to Great Warley?
Yes, we work in villages as well as towns, and Great Warley is covered. Photos of the system and directions to the site help us plan the visit.
What information do you need?
Where the site is, what it is and when it’s open, plus pictures of the system and your last certificate or report if you have one.
How do you protect the area?
Floors and surfaces near the work are sheeted before work begins, and waste is contained as we go. Before we leave, we tidy up and clean down.
Will we get paperwork for the AHU clean?
Yes, both a certificate and a report with photos. It includes a recommended date for the next check.
What’s TR19?
It’s the industry benchmark for cleaning ventilation and kitchen extract systems, written by BESA. It covers how systems are inspected, cleaned and checked and expects a risk-based approach.
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 so your maintenance contractor can deal with it.
Are you insured?
Yes. Full insurance covers our work and have been trading since 2009.
When to call us in Great Warley
An AHU’s intake draws in outdoor air and everything in it: dust, pollen, leaves and debris. Most of it lands at the intake and the first stage of filters, and some travels further into the unit.
Most sites get in touch when they notice one of these:
- Rooms that smell stuffy when the system runs
- Dirty coils holding back the airflow
- Drain trays holding standing water
- Fan sections that haven’t been cleaned in years
If you run a surgery, dental practice or care home near Great Warley, clean ventilation matters as much to you as to a hospital like Spire Hartswood Hospital (about 0.7 miles north-east).
Before you book anyone
- Which accreditations they hold, and whether you can check them
- Whether VAT is included
- Whether a written report and photos are included
- Whether the price is fixed
What AHU cleaning looks like in Great Warley
The FSA’s food hygiene register lists about 5 schools, colleges and universities, about 8 care, childcare and hospital premises and about 3 hotels and B&Bs with registered kitchens or food service in Great Warley and the streets around it, up to about 1.5 miles out. Buildings like these often rely on mechanical ventilation, which TR19® Air covers. At about 18 miles from central London, Great Warley sits well inside the area we cover. We work evenings, overnight and at weekends, so the visit fits around the site. About 0.7 miles north-east of Great Warley is Spire Hartswood Hospital, the nearest hospital. Healthcare ventilation is a good example of why supply ducts need inspecting: the air goes straight to patients.
If you manage a school such as Woodlands School Great Warley, ventilation cleaning is best booked for the holidays.
Great Warley is about 3 miles south of Brentwood, in Essex. Great Warley 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 pictures. Great Warley is one of 644 places in Essex we cover for AHU cleaning. Chelmsford is in our area too, around 13 miles away.
Postcode districts we cover here for AHU cleaning: CM13. That includes premises on Forge Close, Dark Lane and Great Warley Street and the roads around them. Close by, we work in Cranham (2 miles south), Puddle Dock (2 miles south), Harold Wood (2 miles west), Upminster (3 miles south-west) and Emerson Park (3 miles south-west). We also work in nearby towns such as Chelmsford (13 miles north-east), Basildon (8 miles east), Harlow (14 miles north-west), Brentwood (3 miles north), Canvey Island (14 miles east) and Billericay (6 miles north-east).
Landmarks near Great Warley
Locally, jobs take us to businesses close to Thatchers Arms Inn, Brentwood County High School and Tylers Common. The closest station to Great Warley is Brentwood station, roughly 1.7 miles north-east of the centre. A little further out are Upminster Tithe Barn Museum of Nostalgia (2.1 miles south-west) and Spire Hartswood Hospital (0.7 miles north-east). The countryside around Great Warley includes Warley Place.
Towns and villages near Great Warley
Other services in Great Warley
What affects the cost of AHU cleaning
You’ll get a fixed price before work begins. It’s based on:
- A single visit or a regular plan
- What state the system is in
- Parking and loading at the site
- Whether we need access equipment or extra panels
Every site is different, so we price each one individually. The size of the job, how we reach it, its condition and the working hours all play a part.
What we need to know
When you call or email, these details help:
- Where the plant sits or the system leaves the building, such as a roof or outside wall
- When the site is open and when it’s quiet
- Anything you’ve noticed, such as smells, noise, drips or poor airflow
- Close-ups of filters, grilles, hatches or access panels
For a fixed quote, ring 0345 646 2711 or send us an email and tell us the type of site, your opening hours and roughly what the system looks like. A few pictures and your last certificate or report help a lot. You will typically have a quote within one working day.
What the work involves, part by part
Rooftop and plant room units
Units outside are exposed to weather and windblown debris. The intake section gets particular attention.
Filters
What’s on the filters is a good clue to what’s further in. They’re photographed before and after for your records.