Essex · Air handling unit cleaning
AHU Cleaning in Roxwell
Cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces for Roxwell, with a survey first and a report with photos at the end. Ask us for a fixed quote.
- Stale or musty smells from the ventilation
- Intake sections clogged with outdoor debris
- Dust-coated heating and cooling coils
How it works
Your staff don’t need to do much on the day. Someone lets us in at the agreed time and shows us where everything is, and we take it from there. Before we leave, the area is tidied and the paperwork follows. A few photos of the system help us make the most of a visit to a place like Roxwell.
- The survey covers the unit, its access and how it can be shut down.
- We sheet the area and the unit is isolated.
- Each section is cleaned of dust, debris and slime.
- We clean the coils and clear the tray and drain.
- We close every panel, hand the unit back and send the report and certificate.
Preparing for the visit
- Let us know about permits to work or site inductions
- Clear loose items from the work area
- Dig out any earlier paperwork for the system
Getting a quote
The quickest way to a quote is to send pictures: the system from a couple of angles, plus any access panels or hatches. Tell us what kind of site it is and when it’s open, and many jobs can be priced from that alone.
Advice
AHU cleaning in Roxwell, done properly
Drain trays under cooling coils are meant to empty. When the drain blocks, water sits there and the tray turns slimy, right in the path of the air going into the building. Cleaning and clearing it is a key part of the job. We’re often asked to deal with dust built up on fan impellers and debris and leaves in the fresh air intake, on internal panels, supply and extract fans and drain trays.
Somewhere as small as Roxwell, ducted ventilation is typically limited to a school, a care home, a surgery or a converted business building, wherever there is one, but where it’s fitted, it needs the same inspection and cleaning as anywhere.
The paperwork matters as much as the work. You get a written report with pictures after each visit, covering the work done, any areas we couldn’t access and a recommended next date. Keep it with your fire safety records so it’s ready for an insurer, fire officer or EHO.

- Location
- Roxwell (CM1)
- Wider area
- Essex
- Records
- Written report with pictures
- Quote
- A fixed quote up front
- Hours
- When your site is closed, plus a 24/7 line
- Call
- 0345 646 2711
- Checked
- 30 October 2026
Questions from Roxwell
Can you work in Roxwell outside opening hours?
Yes, evening, overnight and weekend work is normal for us. The work in Roxwell can fit around your hours. Tell us your opening hours when you ask for a quote.
Is Roxwell in your area for AHU cleaning?
Yes, Roxwell is within the area we cover across London and the South East. Get in touch with the details and we will arrange a survey.
Do you give a certificate after the clean?
Yes. A TR19® certificate and photo report are sent after the clean, with any faults we noticed.
Do you offer emergency callouts?
Yes, day and night, every day of the year. Office hours are Monday to Friday, 8am to 6pm, and the emergency line covers the rest.
Can one contract cover all our sites?
Yes. Tell us the addresses and what each needs and you’ll get one fixed quote.
How much does AHU cleaning cost?
It depends on the site, so we quote each one individually. For a quote, call us on 0345 646 2711 or email us with the site type, opening hours and a few photos.
Do you clean the ductwork as well?
Yes. Ductwork is cleaned through access panels, with anything inaccessible recorded, and new panels can be fitted.
What do you need from me for a quote?
The site address, the type of premises and your opening hours, along with a few photos and any previous report.
What staff can safely do
A few tasks are always specialist work: opening up ductwork, cleaning fans, drop testing fire dampers and measuring grease need training, the right equipment and safe access. Leave those to us.
Staff cleaning and specialist work are not the same thing. Wiping filters daily and washing them weekly keeps the visible parts in order, but grease that has passed the filters is out of reach. Reaching it takes a specialist with the right equipment.
Ventilation in Roxwell buildings
We cover Roxwell, about 27 miles from central London, as part of our work across London and the South East. Evening, overnight and weekend visits are all possible. For Roxwell, the closest hospital is Chelmsford and Essex Hospital, roughly 3.9 miles south-east. Hospitals show how much a building can rely on its ventilation, and smaller healthcare sites rely on theirs too.
An inspection comes first for any ventilation job around Roxwell, so the cleaning matches what’s there.
Roxwell is about 4 miles west of Chelmsford, in Essex. Whether your site is in the middle of Roxwell or further out, AHU cleaning is available to all kinds of commercial premises, from small sites to large estates. Our Essex coverage runs to 644 places, Roxwell among them.
AHU cleaning in CM1 follows the same survey, fixed quote and written report as everywhere else we cover. You’ll find streets such as The Street, Church Green and St Michael's Drive, and we cover them all for AHU cleaning. If your site is just outside Roxwell, we cover Boyton Cross (1 mile north-east), Newney Green (1 mile south), Chalk End (2 miles north-west), Shellow Bowells (2 miles west) and Radley Green (2 miles south-west). Within a short drive, we also cover Chelmsford (4 miles east), Basildon (13 miles south), Braintree (12 miles north-east), Harlow (12 miles west), Brentwood (9 miles south) and Maldon (13 miles east).
What’s near Roxwell
Around Roxwell, our work takes us to kitchens and buildings near The Chequers Inn. The nearest railway station is Chelmsford station, roughly 3.8 miles east. Well-known places in the area include Willingale Doe (2.8 miles west) and Peter Edwards Museum And Library (3.9 miles east). Open spaces near Roxwell include Newland Grove.
Why deal with it now?
Cleaning a unit while it only has light dust is quick. Leave it for years and dirt bakes onto coils and casings, particularly where damp has made it stick. If the system at a site near Roxwell fails, there may be nowhere nearby to move to.
What you pay reflects the actual work. That’s why we survey first, from pictures or on site, and the price is agreed before work begins.
Why choose Duct Doctor in Roxwell
- Accredited under CHAS and SafeContractor, with ISO 9001
- One contact for all your sites in London and the South East
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
- Evenings, overnight and weekends, plus 24/7 emergency callout
Take a look at how cleaning jobs are priced and our accreditations.
Signs you need AHU cleaning in Roxwell
Planned maintenance often covers belts, motors and filters but not cleaning. So a unit can be well maintained and still dirty.
What we are most often called out for:
- Drain trays holding standing water
- Intake sections clogged with outdoor debris
- Plant that has been serviced but not cleaned
- Filters that are clogged or overdue
Healthcare buildings such as Chelmsford and Essex Hospital, about 3.9 miles south-east, depend on their ventilation; if you manage a surgery, clinic or care home near Roxwell, yours matters too.
What your quote should include
- Whether a survey comes first
- Whether the work can be done while the site is closed
- How they set the interval to the next visit
- What insurance they carry
More services for Roxwell
Honest limits
Some problems need a different service or another trade:
- Airflow problems caused by the system’s design
- Faulty motors, drives or bearings
- Damaged coils beyond cleaning
Not sure which it is? You can call us on 0345 646 2711 or email us and we will tell you honestly.
Where we work
- Filter sections
- Supply and extract fans
- Drain trays
- Internal panels
- Heating and cooling coils
- Dampers and louvres
Between visits
So the system stays in good health:
- Report stiff or damaged access doors
- Note any water around the unit or leaks below it
- Clear leaves and litter away from the intake
- Stick to the filter change plan
The report suggests a date for the next inspection or clean, based on what we found. Under TR19® Air the timing is set by inspection and risk, not a fixed calendar.
Regular inspection under TR19® Air shows when cleaning is due, rather than waiting for a problem.
For landlords and multi-site operators
Under the Regulatory Reform (Fire Safety) Order 2005, the responsible person must assess and reduce fire risk, which may be the employer, owner, landlord, FM or managing agent. Where responsibility is shared, records matter even more.
We regularly work with managing agents. Tell us the site, the work and the access arrangements, and we’ll send a fixed quote.