Hampshire · Air handling unit cleaning

Air handling unit cleaning in Blackfield, Hampshire

AHU cleaning for commercial sites in Blackfield and across Hampshire. BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease.

  • Air handling units never cleaned inside
  • Intake sections clogged with outdoor debris
  • Drain trays holding standing water

Book AHU cleaning in Blackfield

How we handle AHU cleaning in Blackfield

The fan pushes every bit of air in the system, 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. If you are dealing with units needing a clean before a new tenant or handover and stale or musty smells from the ventilation, we can help.

In a place like Blackfield, air handling units are often tucked into roof spaces or small plant rooms, where they’re easy to forget. Every unit, large or small, has filters, coils and a drain tray to keep clean.

The paperwork matters as much as the work. Each visit is written up with pictures, covering the work done, any areas we couldn’t access and a recommended next date. File it in your maintenance log so it’s to hand when an insurer or inspector asks.

Five Duct Doctor technicians in navy uniforms with the company vans
Location
Blackfield (SO45)
Region
Hampshire
Records
Report and pictures after the visit
Price
Fixed quote, usually within a working day
Hours
Nights, weekends or holidays to suit you
Phone
0345 646 2711
Updated
30 October 2026

Signs you need AHU cleaning in Blackfield

Most units live out of sight on roofs, in plant rooms or in ceiling voids, so they’re easy to forget about. Months can pass without anyone looking inside.

Signs it’s time to call us include:

  • Leaves and litter drawn into the unit
  • Units needing a clean before a new tenant or handover
  • Blocked condensate drains and slimy trays
  • Dust-coated heating and cooling coils

School buildings such as Blackfield Primary School are typically done in the holidays, so classrooms are not disturbed.

What your quote should include

  • Whether they recommend a next date
  • What paperwork you get at the end
  • What hours they’ll be on site
  • If the quote is a fixed price or an estimate

How to choose an extract cleaning contractor

How we price AHU cleaning

Sites vary more than people expect. The main factors:

  • The scale of the work
  • Site requirements such as sign-in and permits
  • The times the site is available
  • The number of sites or systems

One small site or a whole estate, the quote is built the same way: what needs doing, how we get to it and when. You will have a fixed price before we start.

Helping us quote

Photos let us diagnose from a distance. The most useful are:

  • Wide pictures of the system and the area around it
  • Any symptoms, from odd noises to smells or leaks
  • Any previous report or certificate
  • How we’d reach plant on a roof or in a plant room

Here’s what helps us quote: the address, the type of site and when it’s open, pictures of the system and any previous report or certificate. Then give us a ring on 0345 646 2711 or email us.

What AHU cleaning looks like in Blackfield

There are about 5 schools, colleges and universities and about 5 care, childcare and hospital premises on the FSA’s food hygiene register across Blackfield and its immediate surroundings (about a mile and a half). Classrooms, bedrooms and care spaces are often served by ducted air, and that ductwork collects dust over time. For Blackfield, the closest hospital is Coldeast, roughly 5.2 miles north-east. Clean air matters most where people are unwell, and that’s as true in a care home as in a hospital.

Healthcare buildings such as Coldeast, about 5.2 miles north-east, depend on their ventilation; if you manage a surgery, clinic or care home near Blackfield, yours matters too.

Blackfield is about 3 miles south-east of Hythe, in Hampshire. We provide AHU cleaning for commercial premises of every kind in Blackfield and the rest of Hampshire. Across Hampshire, we cover 683 places, Blackfield among them. For sites nearby, see our Southampton page (7 miles or so).

Work in SO45 is surveyed, quoted and booked the same way as anywhere else. AHU cleaning is available to premises on Newlands Copse, St Michaels Close and Dark Lane and the roads around them. We also cover Langley (1 mile south), Roughdown (1 mile west), Holbury (1 mile north-west), Fawley (1 mile north-east) and Stonehills (1 mile north-east). Larger places within reach include Gosport (9 miles east), Eastleigh (10 miles north), Fareham (8 miles east), Totton (9 miles north-west), Chandler's Ford (12 miles north) and Hedge End (7 miles north-east).

Around Blackfield

Locally, jobs take us to businesses close to The New Forest Academy and Church of All Saints, among other places. For rail, the closest station is Hamble station, roughly 4.1 miles north-east. A little further out are Beaulieu Abbey And Display Of Monastic Life (3.8 miles west) and Coldeast (5.2 miles north-east). For a walk, there’s Mercury Marshes.

Map of Blackfield © OpenStreetMap contributors

Blackfield questions

Can you come to Blackfield after we close?

Yes. We work evenings, overnight and at weekends. Your customers, staff or residents in Blackfield needn’t be disturbed. Let us know the hours you are closed and we will book within them.

Can ventilation in schools around Blackfield be cleaned out of term?

Yes. Half-terms and the summer break are the natural time for school work. Food Standards Agency records list about 5 schools, colleges and universities with registered kitchens within about a mile and a half of Blackfield. Send us your term dates when you phone us on 0345 646 2711, or email photos, and we will fit the work in.

Do you work with multi-site operators?

Yes. Our area covers London and the South East, so we can schedule a run of sites on one programme. Each site gets its own report and pictures.

Do you have insurance?

Yes, we are fully insured. We also hold CHAS and SafeContractor for clients who vet their contractors.

Do you work in Blackfield?

Yes. We work in Blackfield and the rest of Hampshire, within our South East and London area. For a fixed quote, phone us on 0345 646 2711 or send us an email.

Which sectors do you work in?

Any commercial site with kitchens or ventilation, from a single café to a large school. We work with hotels, schools, care homes, offices, retail and leisure sites.

What is TR19?

It’s the industry benchmark for cleaning ventilation and kitchen extract systems, written by BESA. It sets out inspection, cleaning and record keeping, and it takes a risk-based approach.

How far ahead should we book?

That depends on the slot you want and the size of the job. Tell us your preferred dates when you ask for a quote, and if it’s an emergency, call us any time.

What the work involves, part by part

Filters

Every AHU relies on its filters to catch dust before it reaches the coils. As part of the clean, filters are checked and cleaned or replaced as agreed, and clean the filter housing.

Fans and fan sections

Dust on a fan impeller adds weight and wear. Cleaning keeps it running as intended.

The process

We are used to working while the site is closed. Evenings, nights and weekends are when much of our work happens, so the site can open as normal afterwards. On site, the work takes half a day to a full day per unit, with large plant planned over several shifts. In a smaller place like Blackfield, parking is rarely the issue, but tell us about gates, roof access and opening hours.

  1. First the unit is surveyed, from pictures or a visit, and the scope agreed.
  2. We arrange the shutdown with your staff and sheet the area.
  3. Filters, coils, fan section and casing are cleaned in turn.
  4. Drain trays are cleared and cleaned and the outlet checked.
  5. You get a TR19® certificate and a photo report.

Preparing for the visit

  • Have your last certificate or report to hand
  • Let us know when the site is closed or quiet
  • Clear loose items from the work area

Getting a quote

There’s no standard price list, because every site is different. We look at your system first, from pictures or on a visit, and then give you a fixed quote. To get going, phone us on 0345 646 2711 or use the quote form.

Ask for a quote

Related advice

Staff cleaning versus specialist work

When your team notices a problem between visits, such as dripping grease, a noisy fan, a smell or a filter that will not come clean, they should report it rather than try to fix it. We can diagnose it and quote.

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, which is where we come in.

When something else is needed

We’d rather tell you now than book work that won’t help, so here are the limits:

  • The supply and extract ducts, quoted separately
  • Building management system faults
  • A system that’s undersized for the building

If in doubt, give us a ring on 0345 646 2711 or email us and we will say what we think before you book.

Parts of the system we cover

  • Supply and extract fans
  • Filter sections
  • Heating and cooling coils
  • Drain trays
  • Internal panels
  • Dampers and louvres

Why deal with it now?

A clean unit feeds cleaner air into the ductwork, so the ducts and grilles stay cleaner between cleans. It also means the next inspection has less to find. A site near Blackfield that has to close at short notice is hard to cover for.

Whatever the type of site, the quote works the same way: how much there is, how we reach it, what state it’s in and when we can work. Ask for a fixed quote and we will explain each part.

Why book with us

  • CHAS, SafeContractor and ISO 9001
  • We diagnose before we treat
  • Fixed quotes, typically within one working day
  • One contact for all your sites in London and the South East

See what affects the cost or our accreditations and certificates.

BESCA Vent Hygiene EliteMember, cleaning to BESA TR19® Grease
CHAS · SafeContractorISO 9001 and fully insured
Certificate and photo reportWith every clean
24/7 emergency calloutEvenings, nights and weekends
Since 2009South East England and London