Essex · Air handling unit cleaning
Boreham AHU cleaning
Cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces in Boreham, surveyed first and signed off with a written report and pictures. Call for a fixed quote.
- Units that have only ever had filter changes
- Leaves and litter drawn into the unit
- Air handling units due a clean after building work
Honest limits
Some problems need a different service or another trade:
- Damaged coils beyond cleaning
- Faulty motors, drives or bearings
- Ductwork downstream of the unit, which is a separate clean
Not sure which it is? You can ring 0345 646 2711 or drop us a line and we’ll tell you honestly.
Where we work
- Drain trays
- Heating and cooling coils
- Filter sections
- Internal panels
- Dampers and louvres
- Supply and extract fans
About our AHU cleaning in Boreham
All the building’s air passes through the fan, so dust on its blades and housing ends up in the airstream. We clean the fan section along with the rest of the unit, once the unit has been shut down and isolated. We’re often asked to deal with rooms that smell stuffy when the system runs and plant that has been serviced but not cleaned, across drain trays, dampers and louvres and internal panels.
Smaller buildings around Boreham often keep their ventilation units in a roof void or plant cupboard, out of sight and easy to overlook. Every unit, large or small, has filters, coils and a drain tray to keep clean.
Duct Doctor has been trading since 2009, as a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 are in place too, and we carry full insurance.
- Where
- Boreham (CM3)
- Region
- Essex
- Records
- Photo report after each visit
- Quote
- Fixed quote, typically within a working day
- Working hours
- Nights, weekends or holidays to suit you
- Call
- 0345 646 2711
- Updated
- 30 October 2026
The process
The first job on site is protection: sheeting goes over floors and surfaces close to the work. Then we make the system safe and start. The work on site takes a single shift for a typical unit, longer for large or heavily soiled ones, and we clear up before we go. Visits to a place like Boreham are planned ahead, so we arrive with what the survey says the job needs.
- We agree a shutdown window that suits the building.
- Before cleaning, each section is photographed.
- Filters, coils and internal surfaces are cleaned from intake to discharge.
- The fan and drain tray are cleaned and the drain checked.
- We take after photos and issue the certificate and report.
Preparing for the visit
- Dig out any earlier paperwork for the system
- Name a contact who can let us in at the agreed time
- Mention any sign-in, permit or induction we need
Getting a quote
There’s no standard price list, because every site is different. Instead, we look at your site first, from photos or a survey, and then give you a fixed quote. To start, call us on 0345 646 2711 or send us an email.
Advice
Looking after it afterwards
Here’s the after-treatment advice, short and simple:
- Make sure the unit’s access doors open easily
- Diary the inspection date recommended in the report
- Note any water around the unit or leaks below it
- 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.
Have the unit inspected regularly, in line with the risk-based approach of TR19® Air instead of leaving it to guesswork.
Signs you need AHU cleaning in Boreham
Planned maintenance often covers belts, motors and filters but not cleaning. So a unit can be well maintained and still dirty.
Common reasons sites call us are:
- Units needing a clean before a new tenant or handover
- Fan sections that haven’t been cleaned in years
- Filters that are clogged or overdue
- Dirty coils holding back the airflow
Healthcare buildings such as Priory Hospital, about 2.6 miles south-west, depend on their ventilation; if you manage a surgery, clinic or care home near Boreham, yours matters too.
Questions to ask before booking
- What happens if part of the system cannot be accessed
- Whether they recommend a next date
- Whether they’re fully insured
- What’s included in the scope, part by part
Different parts, different methods
Internal casing and panels
Damaged internal linings or loose panels can shed material into the air. We note any we find in the report.
Heating and cooling coils
Heating and cooling coils have tightly packed fins that trap fine dust. They’re cleaned using methods that won’t bend or flatten the fins.
Multi-site and managed buildings
Running several sites is easier with one contractor. We cover South East England and London, so visits at different addresses can be planned together and kept on a regular cycle.
If you look after several sites, we can schedule visits across all of them on one quote. Each site gets its own report and photos, so each one has its own record.
AHU cleaning in Boreham: local notes
The FSA’s food hygiene register lists about 4 schools, colleges and universities with registered kitchens or food service within roughly a mile and a half of the centre of Boreham. Busy, occupied buildings like these are where clean supply air matters most. Priory Hospital is the nearest hospital, about 2.6 miles south-west of Boreham. Healthcare buildings depend on clean supply and extract ventilation, and the same applies to surgeries, clinics and care homes. We cover Boreham, about 33 miles from central London, as part of our work across London and the South East. Visits are booked around your hours, evenings and weekends included.
Wherever a school like Boreham Primary School has ducted ventilation, a half-term visit keeps the work out of lesson time.
Boreham is about 3 miles north-east of Chelmsford, in Essex. Every kind of commercial site in Boreham, we can take on AHU cleaning. We can work out of hours so the site keeps running. Boreham is one of 644 places in Essex where we work for AHU cleaning.
All of CM3 is covered for AHU cleaning, from busy streets to back roads. Whether your site is on Church Road, St Andrews Road and Seabrook Gardens or a nearby road, our technicians can take on the work. With the B1137 close by, Boreham is simple for us to get to for AHU cleaning. Other places close to Boreham include Mowden (1 mile east), Springfield (2 miles south-west), Little Baddow (2 miles south-east), Hatfield Peverel (2 miles north-east) and Sandon (3 miles south). Further out, we also cover Chelmsford (3 miles south-west), Basildon (14 miles south), Braintree (8 miles north), Brentwood (14 miles south-west), Maldon (6 miles east) and Billericay (11 miles south-west).
Near you in Boreham
Locally, jobs take us to businesses close to Six Bells Public House and Boswells School. The nearest railway station is Beaulieu Park station, roughly 1 mile west of the centre. Nearby you will also find Priory Hospital (2.6 miles south-west) and Bond Street Chelmsford (3.4 miles south-west). The countryside around Boreham includes Newland Grove.
What happens if it’s left?
Leave an AHU uncleaned and the dirt doesn’t stay put. It’s carried through the ductwork and out of the grilles, which is why the unit and the ducts are best cleaned together. Booking now means the visit to Boreham is planned around you, not forced by a breakdown.
Several systems or sites on one quote can make for a more efficient booking. Tell us about everything you’d like looked at, and you will get one fixed quote.
What you get with us
- Out-of-hours work and a 24/7 emergency line
- We diagnose before we treat
- One contact for all your sites in London and the South East
- BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
Read what affects the cost and our accreditations and certificates.
Questions from Boreham
Is Boreham within the area you cover?
Yes. Boreham is within the area we cover across London and the South East. The journey is planned ahead, so a few details about the route help.
Do you work overnight in Boreham?
Yes, nights and weekends are routine for us. The site is handed back ready to open. Your opening times are the first thing we ask for.
What does AHU cleaning cost?
It depends on the site, so we quote each one individually. To get one, phone us on 0345 646 2711, or email photos with the site type, opening hours and a few photos.
What does TR19 mean?
TR19® is BESA’s specification for ventilation hygiene. TR19® Grease, a standalone specification since 2019, covers grease in kitchen extract systems, and TR19® Air covers general supply and extract systems.
What happens if you cannot reach some of it?
The report shows them clearly. In ductwork, new access panels are often the answer, which we can install.
Is there a report after cleaning?
Yes. You get a TR19® certificate plus before and after pictures. Keep them in the maintenance log.
Do you offer emergency callouts?
Yes. There’s a 24/7 emergency line, for problems that can’t wait. Call us any time and explain what’s happened.
What should I send you?
Where the site is, what it is and when it’s open, along with a few photos and any previous report.