Portsmouth · Air handling unit cleaning
AHU Cleaning in Fratton
AHU cleaning in Fratton, surveyed first and signed off with a written report and photos. Call for a fixed quote.
- Leaves and litter drawn into the unit
- Blocked condensate drains and slimy trays
- Dust built up on fan impellers
Landlords, agents and facilities managers
Facilities teams in offices, schools and healthcare sites book us too in Fratton and across Portsmouth. Work can be phased by floor, building or site around the people who use them.
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.
About our AHU cleaning in Fratton
No two plant rooms are the same, from a small ceiling-mounted unit to a large rooftop plant. We look at the unit first, from pictures or a site visit, and give you a fixed quote, so you know where you stand. If you are dealing with rooms that smell stuffy when the system runs and units needing a clean before a new tenant or handover, we can put it right, from internal panels, dampers and louvres and drain trays onwards.
Around a place like Fratton, ventilation systems tend to be in schools, surgeries, care homes and workplaces. Even a small system collects dust in its ducts and filters.
Duct Doctor has been trading since 2009, and we are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we carry full insurance.
- Where
- Fratton (PO1, PO4, PO3)
- Region
- Portsmouth
- Records
- Written report with pictures
- Price
- Fixed quote, typically within a working day
- Hours
- After hours by arrangement; emergencies any time
- Telephone
- 0345 646 2711
- Reviewed
- 30 October 2026
What happens on the day
Our technicians bring everything the work needs, including protection sheets, the right tools and access kit. You only need to give us clear access and switch off what needs to be off. On site, the work takes one overnight shift for many single units, with bigger plant phased. For a place like Fratton, we load the van from the survey notes so the work can be done in one visit where possible.
- We agree a shutdown window that suits the building.
- We take before photos of each section of the unit.
- Filters, coils and internal surfaces are cleaned from intake to discharge.
- We finish with the fan section and the drain tray.
- We take after pictures and issue the certificate and report.
Getting ready for the visit
- Agree a time when the area can be out of use
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
- Mention any parking or loading restrictions
Get a fixed quote
We do not publish a price list, because every site is different. We look at your system first, from photos or on a visit, then send a fixed quote. To get going, give us a ring on 0345 646 2711, or send details by email.
Advice
Different parts, different methods
Drain trays
Older trays can corrode and start leaking. We record their condition with pictures so you can decide on any repairs.
Filters
What’s on the filters is a good clue to what’s further in. They’re photographed before and after for your records.
What happens if it’s left?
A slimy drain tray only gets worse. Left alone, it can overflow, leak into the plant area or ceiling below and spread smells through the system. Clearing it now is a much smaller job. Even a site near Fratton that is only busy part of the week needs its system checked on a schedule.
The price reflects the work, not guesswork. That’s why we survey first, from photos or on site, and why the quote is fixed before any work starts.
Why choose Duct Doctor in Fratton
- One number for every site across the South East and London
- In business since 2009
- A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- We are fully insured
Take a look at how cleaning jobs are priced and how to check a contractor.
What your team can do, and what needs us
If your staff spot something between visits, like drips, unusual noise, smells or damaged filters, they should report it rather than try to fix it. We can diagnose it and quote.
Some jobs should never be done in-house: entering ducts, working on fans, testing dampers and taking grease readings call for the right kit, training and safe access. Leave those to us.
Also in Fratton
Keeping the system healthy
Aftercare is simple, and it helps at the next visit:
- Clear leaves and litter away from the intake
- Report water on the plant room floor
- Make sure condensate is draining away
- Store the TR19 paperwork where auditors can find it
Stick to the filter change schedule, as that does more than anything to keep the unit clean. Log every change so it’s easy to see when the next is due.
Regular inspection under TR19® Air shows when cleaning is due, rather than waiting for a problem.
Your questions about AHU cleaning in Fratton
Can you get to a site in Fratton?
Yes, we work in villages as well as towns, and Fratton is covered. Just mention lanes, gates or anything else about the site when you book.
Can a school’s ventilation in Fratton be done out of term time?
Yes, out-of-term visits are normal for schools. Food Standards Agency records list about 49 schools, colleges and universities with registered kitchens within about a mile and a half of Fratton. Send us your term dates when you phone us on 0345 646 2711, or send details by email, and we’ll fit the work in.
Do you look at the system first?
Yes. Photos often do the job, while bigger or harder-to-see systems are surveyed on site.
Are you accredited?
Our accreditations are CHAS, SafeContractor and ISO 9001, alongside BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease. Vent Hygiene Elite is run by BESCA and independently audited.
Do you have insurance?
Yes. Full insurance covers our work, and we have been trading since 2009.
Do you give a certificate after the clean?
Yes, a TR19® certificate and a photo report. It includes a recommended date for the next check.
Do you work evenings or weekends?
Yes. We work evenings, overnight and weekends, so offices, schools and shops can carry on.
What does TR19 mean?
A BESA specification in two main parts: TR19® Grease for kitchen extract systems and TR19® Air for general ventilation. It is not legislation, but it’s the standard people check against.
When something else is needed
Before booking, it helps to know what’s not included:
- Ventilation that was badly designed in the first place
- Mechanical faults with motors, belts or bearings
- Controls and BMS settings that run the unit
If in doubt, call us on 0345 646 2711, or email photos and we’ll say what we think before you book.
Where we work
- Supply and extract fans
- Filter sections
- Internal panels
- Drain trays
- Heating and cooling coils
- Dampers and louvres
Ventilation in Fratton buildings
Food Standards Agency records list about 49 schools, colleges and universities, about 61 caring premises (care homes, nurseries and hospitals) and about 21 hotels and B&Bs registered as food businesses within roughly a mile and a half of the centre of Fratton. Classrooms, bedrooms and care spaces are often served by ducted air, and that ductwork collects dust over time. Fratton’s nearest hospital, St Mary's Hospital, is about under half a mile east. Hospitals show how much a building can rely on its ventilation, and smaller healthcare sites rely on theirs too.
Hospitals such as St Mary's Hospital (about less than half a mile east) show how much a building can rely on clean ventilation, and smaller healthcare sites near Fratton are no different. Workplaces around Fratton station with an air handling unit need the filters, coils and drain tray looked at, as well as the ducts. If you manage a school such as Penhale Infant School & Nursery, ventilation cleaning is best booked for the holidays.
Fratton is about 1 mile south-east of Portsmouth, in Portsmouth. Sites in Fratton get the same service as everywhere we cover: diagnosis first, a fixed price, out-of-hours working where necessary and a written report with photos. Across Portsmouth, we cover 19 places, and Fratton is one of them.
AHU cleaning in PO1, PO4 and PO3 is surveyed, quoted and booked the same way as anywhere else. AHU cleaning is available to premises on Renny Road, Clive Road and Union Road and nearby roads. With the A288 close by, Fratton is easy for our technicians to reach for AHU cleaning. Neighbouring places we cover for AHU cleaning include Kingston (1 mile north-east), Portsmouth (1 mile north-west), Landport (1 mile west), Baffins (1 mile north-east) and Copnor (1 mile north-east). We also work in nearby towns such as Wymering (3 miles north), Paulsgrove (3 miles north), Cosham (3 miles north), Drayton (3 miles north) and Farlington (4 miles north-east).
Near you in Fratton
Locally, jobs take us to businesses close to The Portsmouth Academy, Alexandra Park and St Edmund's Catholic School, among other places. There’s a railway station in Fratton itself: Fratton station. A little further out are St Mary's Hospital (within half a mile east) and Charles Dickens Birthplace Museum (0.8 miles north-west). Green spaces nearby include Milton Locks and Portsdown Hill.