Hampshire · Air handling unit cleaning
Firgo AHU cleaning
Air handling unit cleaning for commercial sites in Firgo and across Hampshire. CHAS, SafeContractor and ISO 9001, and fully insured.
- Plant that needs cleaning after a refit
- Dirty coils holding back the airflow
- Odours coming through the supply air
How the job changes from site to site
Internal casing and panels
Loose or damaged linings inside a unit can break up into the airstream. We note any we find in the report.
Drain trays
Standing water in a tray sits right where the air passes. We clean it and report anything about the tray or drain that needs fixing.
AHU cleaning in Firgo, done properly
An AHU clean is a thorough examination and treatment of the unit. Every section is opened, cleaned and photographed, so the report shows exactly what was done. The work covers internal panels, supply and extract fans and filter sections, and common reasons people get in touch are dust built up on fan impellers and air handling units due a clean after building work.
For a building in or near Firgo, access is agreed in advance and the visit is planned around the journey, and the ventilation is inspected, cleaned and recorded the same as anywhere.
The report is your system’s health record: dated, with photos, and showing what was done. Grease extract cleans are also certificated to TR19® Grease through the BESCA VHE portal, ready for your insurer.
- Where
- Firgo (RG28)
- Wider area
- Hampshire
- Records
- Written report with photos
- Quotes
- Fixed quote, usually within a working day
- Hours
- Out of hours as standard, 24/7 emergency line
- Phone
- 0345 646 2711
- Updated
- 30 October 2026
Towns and villages near Firgo
What else we do in Firgo
Firgo: your questions answered
Do you cover Firgo for AHU cleaning?
Yes, Firgo is covered. Get in touch with the details and we’ll arrange a survey.
Can you work in Firgo outside opening hours?
Yes. We work evenings, overnight and at weekends. Your customers, staff or residents in Firgo needn’t be disturbed. Just call 0345 646 2711 or email us with your opening times and we will plan around them.
Do you look at the system first?
Yes. We always survey first, either from photos and details you send or on a site visit. Then you get a fixed quote.
Do you repair air handling units?
The clean includes noting faults, but repairs sit with your maintenance contractor, with pictures where it helps.
Do you have insurance?
Yes. Duct Doctor is fully insured, and the details are available on request.
Will the ventilation be off while you clean?
Yes. We cannot clean a running unit, so it’s switched off and made safe first. We agree the timing with your site team.
What does AHU cleaning cost?
We don’t publish prices, because the cost depends on the job: the size of the system, its condition, access and when we can work. We fix the price before work begins.
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.
Staff cleaning versus specialist work
Logging matters as much as cleaning. A simple log of filter washes, wipe-downs and checks shows an inspector that the system is looked after between visits, alongside our reports.
Staff cleaning and specialist work aren’t the same thing. A daily filter wipe and a weekly filter wash keep grease down at the front of the system, but they do not reach the grease that builds up further in. That part needs specialist access and equipment.
AHU cleaning around Firgo
At about 58 miles from central London, Firgo sits well inside the area we cover. The visit is fixed around your opening hours, not ours.
Classrooms and halls at schools such as Testbourne Community School are easiest to work in when pupils are away.
Firgo is about 6 miles east of Andover, in Hampshire. We carry out AHU cleaning for commercial premises of every kind in Firgo and the rest of Hampshire. 683 places in Hampshire are on our list, large and small. For sites nearby, see our Southampton page, about 20 miles away.
Postcode districts we cover here for AHU cleaning: RG28. Nearby, we also carry out AHU cleaning in Hurstbourne Priors (2 miles north-west), Whitchurch (2 miles north), Wells-in-the-Field (2 miles north-east), Freefolk (3 miles north-east) and Cole Henley (4 miles north). Further out, we also cover Basingstoke (11 miles north-east), Winchester (10 miles south), Andover (6 miles west), Chandler's Ford (15 miles south), Tadley (13 miles north-east) and Hyde (9 miles south).
Around Firgo
The nearest railway station is Whitchurch (Hampshire) station, roughly 2.4 miles north.
What we do, step by step
There are three stages on the day: set-up, the treatment itself and the sign-off. Set-up means sheeting and making equipment safe, and the sign-off is a written report with photos. Most of the time goes on the work itself, which takes half a day to a full day per unit, with large plant planned over several shifts. The timing of a visit to Firgo is set by you, and the travel is our side of the planning.
- We start with a survey of the unit and a fixed quote for the work.
- The unit is shut down with your site team and the area protected.
- Filters, coils, fan section and casing are cleaned in turn.
- We clean out the drain tray and make sure it drains.
- You get a TR19® certificate and a photo report.
How to prepare
- Mention any locked doors, roof access or ceiling voids
- Make sure equipment near the work can be switched off and left to cool
- Tell us the best time to work, such as after service or at a weekend
Get a fixed quote
Photos are enough for some jobs, while others need a look on site. Big or complicated sites, and systems that are hard to see in photos, get a survey first. Either way, you get a fixed price before we start.
Related advice
Do you need AHU cleaning in Firgo?
Most units live out of sight on roofs, in plant rooms or in ceiling voids, so they’re easy to forget about. It’s easy for a long time to go by without anyone opening the panels.
Clients normally contact us after spotting one of these:
- Fan sections that haven’t been cleaned in years
- Air handling units with blocked filters
- Dust-coated heating and cooling coils
- Plant that has been serviced but not cleaned
In Firgo, we look inside the system before deciding what needs cleaning.
Comparing quotes
- Which accreditations they hold, and whether you can check them
- Whether a survey comes first
- Whether they’re fully insured
- Whether the whole system is included, or only the parts that are easy to reach
Aftercare tips
A little care between visits keeps the system in better shape. We recommend:
- Don’t ignore odours coming through the grilles
- Do not store bins or materials near the intake
- Change filters on schedule and log each change
- Store the TR19 paperwork where auditors can find it
We recommend when the unit should next be inspected or cleaned, taking into account how dirty it was. TR19® Air is risk-based, so the interval depends on the unit and how the building is used.
Don’t let leaves, litter or stored materials build up near the fresh air intake. Anything around the intake is likely to be drawn in.
When it’s something else
AHU cleaning cannot fix everything, and we’d rather say so up front. It will not put right:
- Faulty motors, drives or bearings
- Building management system faults
- A system that is undersized for the building
If you’re not sure, just call 0345 646 2711 or use the quote form and we’ll give you a straight answer.
Parts of the system we cover
- Supply and extract fans
- Drain trays
- Internal panels
- Filter sections
- Dampers and louvres
- Heating and cooling coils
Managing agents and facilities teams in Firgo
Under the Regulatory Reform (Fire Safety) Order 2005, the responsible person must assess and reduce fire risk, 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.
If you look after several sites, we can schedule visits across all of them on one quote. Each site gets its own report and pictures, so records stay tidy.