Portsmouth · Air handling unit cleaning
Farlington AHU cleaning
AHU cleaning for Farlington, from a team that has been trading since 2009. Out-of-hours visits and 24/7 emergency callout.
- Units needing a clean before a new tenant or handover
- Dust-coated heating and cooling coils
- Fan sections that haven’t been cleaned in years
Between visits
Here’s the after-treatment advice, in brief:
- Clear leaves and litter away from the intake
- Keep filter changes on time and recorded
- File each AHU report in the maintenance log
- Watch for drips or damp patches near the plant
Restart the unit with your site team or maintenance contractor once we’ve finished. Keep an eye on the condensate drain over the next few days to confirm water is draining away.
Make the drain tray part of every maintenance visit. A drain that is cleared early never gets to the slime stage.
AHU cleaning for kitchens and businesses in Farlington
We clean the parts of the unit where dirt and moisture gather: filters, coils, drain trays, fans and the internal panels. Every clean comes with a TR19® certificate and before and after photos in a report. The work covers filter sections, heating and cooling coils and dampers and louvres, and people most often call us about dust-coated heating and cooling coils and dirty filters cutting the airflow.
Around a place like Farlington, ventilation systems tend to be in schools, surgeries, care homes and workplaces. Smaller systems still gather dust and need inspecting.
The sign-off is always in writing: a dated report with photos of the work, and for TR19® Grease cleans, a certificate issued through the BESCA VHE portal. Any parts we couldn’t reach are recorded on it too.
- Location
- Farlington (PO6, PO9, PO7)
- Wider area
- Portsmouth
- Paperwork
- Written report with photos
- Quotes
- A fixed quote up front
- Working hours
- After hours by arrangement; emergencies any time
- Call
- 0345 646 2711
- Updated
- 30 October 2026
Staff cleaning versus specialist work
Day-to-day cleaning is something your team can do: wiping down canopy surfaces, cleaning filters and keeping a simple log. Inside the ducts, risers and fan is specialist work, and that is where we come in.
Logging matters as much as cleaning. A simple log of filter washes, wipe-downs and checks helps show that the system is managed between specialist visits, next to our reports.
Also near Farlington
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Farlington questions
Can you come to Farlington after we close?
Yes, nights and weekends are routine for us. It means the site in Farlington keeps running as normal. Just call 0345 646 2711, or email photos with your opening times and we’ll plan around them.
Do you do school ventilation cleaning in Farlington in the summer holidays?
Yes, holiday work suits schools best. With about 10 schools and colleges on the FSA’s register within roughly a mile and a half of Farlington, it pays to plan holiday dates ahead. You can call us on 0345 646 2711 or drop us a line with the dates the site is empty.
Are you fully insured?
Yes. Full insurance covers our work and have been trading since 2009.
What happens to the waste?
We take it away when we go. During the work, it’s contained so the area stays clean.
Do you give a certificate after the clean?
Yes, both a certificate and a report with pictures. The report also suggests when the unit should next be inspected.
What accreditations do you have?
Duct Doctor is a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we’re fully insured.
Do you survey before quoting?
Yes. For many sites, photos and a few details are enough, and larger or hidden systems get a visit.
Do you offer maintenance contracts?
Yes, of course. Tell us what you have and how it’s used, and we’ll suggest a schedule and quote for it.
When it’s something else
It’s worth knowing the limits before booking:
- The supply and extract ducts, quoted separately
- Problems with the unit’s controls or sensors
- A system that is undersized for the building
Not sure which it is? You can call us on 0345 646 2711, or send details by email and we will tell you honestly before you book.
Parts of the system we cover
- Supply and extract fans
- Dampers and louvres
- Internal panels
- Heating and cooling coils
- Filter sections
- Drain trays
How it works
Our technicians bring everything the work needs, from protective sheeting to tools and access equipment. All we need from you is clear access and the right equipment switched off. On site, the work takes anything from half a day for one small unit to several shifts for a plant room full of them. We plan the journey to Farlington and bring what the job is likely to need.
- We start with a survey of the unit and a fixed quote for the work.
- With your site team, the unit is switched off and isolated, then the area around it protected.
- Filters, coils, fan section and casing are cleaned in turn.
- Standing water and slime come out of the tray and the drain is checked.
- A TR19® certificate and photo report follow the clean.
Getting ready for the visit
- Find the previous report, if there is one
- Tell us about site rules, permits or sign-in
- Agree a time when the area can be out of use
Ask for a quote
Some systems can be priced from pictures; others need a survey. Larger sites, and anything hidden behind walls, ceilings or floors, are normally surveyed first. Either way, you get a fixed price before we start.
Related advice
Ventilation in Farlington buildings
Food Standards Agency data includes about 10 schools, colleges and universities, about 24 caring premises (care homes, nurseries and hospitals) and about 3 hotels, B&Bs and guest houses within roughly a mile and a half of the centre of Farlington. Busy, occupied buildings like these are where clean supply air matters most. About 1.6 miles west of Farlington is Queen Alexandra Hospital, the nearest hospital. Healthcare buildings depend on clean supply and extract ventilation, and the same applies to surgeries, clinics and care homes.
Classrooms and halls at schools such as Solent Infant School are easiest to work in when pupils are away. Queen Alexandra Hospital, about 1.6 miles west, is the nearest hospital to Farlington, and healthcare sites of every size need their supply air kept clean.
Farlington is about 2 miles south of Purbrook, in Portsmouth. From the centre of Farlington to the outskirts, AHU cleaning is available to all kinds of commercial premises, from small sites to large estates. We cover 19 places across Portsmouth, large and small.
We cover every part of PO6, PO9 and PO7 for AHU cleaning and the streets around it. AHU cleaning is available to premises on Galt Road, Grant Road and Havant Road and nearby roads. We also cover Drayton (1 mile west), Widley (1 mile north-west), Cosham (1 mile west), Bedhampton (1 mile north-east) and Purbrook (2 miles north). Within a short drive, we also cover Portsmouth (3 miles south-west), Southsea (5 miles south), Milton (4 miles south), Landport (4 miles south-west), Baffins (3 miles south) and Rudmore (3 miles south-west).
Around Farlington
We work in commercial kitchens and buildings around Springfield School, Springfield School and New Inn, among other places. For rail, the closest station is Cosham station, about 1.5 miles west of the centre. Other landmarks nearby include Warblington Castle (2.9 miles east) and Queen Alexandra Hospital (1.6 miles west). Open spaces near Farlington include Portsdown Hill and Southmoor Nature Reserve.
Part by part
Heating and cooling coils
Dirt on a coil slows the air and makes it harder for the coil to heat or cool. Cleaning restores the open path through the fins.
Rooftop and plant room units
Units on roofs and in plant rooms can be awkward to reach. We plan safe access as part of the survey so the quote reflects it.
Why act early in Farlington
Facilities teams are often asked for evidence that the ventilation is looked after. A TR19® certificate and photo report give you that, for audits, tenants or your own peace of mind. A visit arranged in advance is far less disruptive than a callout on a busy day.
Kitchens, offices, schools and hospitals are all priced the same way: the size of the job, access, condition and working hours. Ask for a fixed quote and we will go through it with you.
What you get with us
- Survey first, then a fixed quote
- Work around your opening hours, with 24/7 emergency cover
- CHAS and SafeContractor accredited, with ISO 9001
- Fully insured
Take a look at what affects the cost and how to check a contractor.
Multi-site and managed buildings
When the building owner and the occupier are different, the lease normally sets out who maintains what. We can quote either party, and the report can go to both.
The Fire Safety Order 2005 puts the duty to manage fire risk on the responsible person, and that can be the employer, the owner, a landlord, a facilities manager or a managing agent. Where responsibility is shared, records matter even more.