Hampshire · Air handling unit cleaning

AHU Cleaning in Sleaford

One call covers air handling unit cleaning in Sleaford: survey, fixed quote, work and sign-off. Fully insured, with CHAS, SafeContractor and ISO 9001.

  • Intake sections clogged with outdoor debris
  • Plant that needs cleaning after a refit
  • Filters that are clogged or overdue

AHU cleaning in Sleaford

How we handle AHU cleaning in Sleaford

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. Clearing and cleaning the tray is central to every AHU clean. Typical jobs include air handling units due a clean after building work and drain trays holding standing water, on drain trays, internal panels and filter sections.

In rural areas, ventilation units are often in roof voids or outbuildings, where filters and drain trays get forgotten.

Nothing is signed off by word of mouth: a dated report with photos of the work, plus a certificate through the BESCA Vent Hygiene Elite portal when the work is a TR19® Grease clean. Any parts we couldn’t reach are recorded on it too.

Where
Sleaford (GU35)
Region
Hampshire
Paperwork
Report and pictures after the visit
Quote
A fixed price before any work starts
When we work
Overnight and weekend work, 24/7 emergency callout
Call
0345 646 2711
Checked
30 October 2026
Duct Doctor duct and vent cleaning vans lined up in a car park with the team

Ventilation in Sleaford buildings

There are about 3 caring premises (care homes, nurseries and hospitals) on the FSA’s food hygiene register in and around Sleaford, up to about a mile and a half out. Buildings like these often rely on mechanical ventilation, which TR19® Air covers. Sleaford, about 41 miles from central London, is within our usual area. We work evenings, overnight and at weekends, so the visit fits around the site. Sleaford’s nearest hospital, Chase Community Hospital, is about 2.1 miles south. Healthcare buildings depend on clean supply and extract ventilation, and the same applies to surgeries, clinics and care homes.

If you run a surgery, dental practice or care home near Sleaford, clean ventilation matters as much to you as to a hospital like Chase Community Hospital (about 2.1 miles south).

Sleaford is about 5 miles east of Alton, in Hampshire. We carry out AHU cleaning for businesses, landlords and public buildings in Sleaford and the rest of Hampshire. Across Hampshire, we cover 683 places, and Sleaford is one of them. You can also see our page for Guildford, roughly 14 miles from Sleaford.

Work in GU35 is surveyed, quoted and booked the same way as anywhere else. Neighbouring places we cover for AHU cleaning include Kingsley (1 mile west), Pinewood Village (1 mile south), Lindford (1 mile south), Frithend (1 mile north) and Bordon (2 miles south). Larger places within reach include Basingstoke (14 miles north-west), Farnborough (12 miles north), Fleet (10 miles north), Aldershot (9 miles north-east), Alton (5 miles west) and Petersfield (10 miles south).

Local landmarks in Sleaford

We work in commercial kitchens and buildings around The New Inn and the streets around them. The closest station to Sleaford is Bentley (Hampshire) station, about 3.2 miles north of the centre. A little further out are Chase Community Hospital (2.1 miles south). Open spaces near Sleaford include Deadwater Valley.

Map of Sleaford © OpenStreetMap contributors

How we price AHU cleaning

The survey tells us what the work involves. The main factors are:

  • Any permits to work or inductions
  • Whether it’s a one-off visit or part of a schedule
  • The scale of the work
  • When the work can happen, such as evenings, overnight or weekends

Kitchens, offices, schools and hospitals are all priced the same way: the size of the job, access, condition and working hours. Call for a fixed quote and we will explain each part.

What to send for a quote

Photos and a few facts are often enough to price the work. Useful things to send:

  • Where the site is and what kind of site it is
  • Close-ups of filters, grilles, hatches or access panels
  • Your last certificate, test record or report
  • Anything you’ve noticed, such as smells, noise, drips or poor airflow

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 any work starts.

Common problems we fix in Sleaford

No filter stops everything. The fine dust that passes the filters lands on the coils, the fan and the internal panels, building up layer by layer.

These are the problems we see most often:

  • Units needing a clean before a new tenant or handover
  • Rooms that smell stuffy when the system runs
  • Blocked condensate drains and slimy trays
  • Dirty fans and fan housings

If you manage a school such as Mill Chase Academy, ventilation cleaning is best booked for the holidays.

What to look for in a quote

  • What paperwork you get at the end
  • Whether the work can be done while the site is closed
  • How areas they cannot reach will be recorded
  • Whether the price is fixed

Our hiring checklist

What happens on the day

There’s very little for your team to do on the day. A contact on site lets us in at the agreed time and points us to the system, and the rest is down to us. Before we leave, the area is tidied and the paperwork follows. In a small place like Sleaford, the journey is planned ahead and the visit arranged around the site’s hours.

  1. The survey covers the unit, its access and how it can be shut down.
  2. The area is protected and the unit made safe.
  3. Dirt and debris are removed from each section.
  4. We clean the coils and clear the tray and drain.
  5. The unit is closed up and handed back, with a report to follow.

How to prepare

  • Make sure someone can let us in and lock up afterwards
  • Plan for cooking equipment or plant to be off before we arrive
  • Mention any sign-in, permit or induction we need

Get a fixed quote

For a fixed quote, phone us on 0345 646 2711 or use the quote form and tell us the type of site, your opening hours and roughly what the system looks like. A few pictures and your last certificate or report help a lot. You will normally have a quote within one working day.

Get a quick quote

Read more

Managing agents and facilities teams in Sleaford

Landlords, managing agents and facilities managers book us, not only the businesses that use the systems. Where a system serves more than one tenant, such as a shared riser, it helps to agree who arranges the work, and we can quote for the whole system.

When the building owner and the occupier are different, it’s worth checking the lease for who maintains the systems. We are happy to deal with either side, and the report can go to both.

Looking after it afterwards

Good habits slow the build-up between visits. Our tips:

  • Flag stale or damp smells in the supply air
  • Keep inspection doors on the unit in good order
  • Book the next check in line with the report
  • Watch for drips or damp patches near the plant

When we’ve closed the unit up, it can be restarted with your site team. Keep an eye on the condensate drain over the next few days to confirm water is draining away.

Make sure access doors and panels on the unit open easily. Sections that are awkward to open are the ones that get skipped.

How the job changes from site to site

Fans and fan sections

Every bit of air passes the fan, so a dirty fan sends dirt downstream. We clean the impeller, housing and surrounding section.

Filters

Dirty filters cut airflow and let dirt slip past their frames. The filter section is cleaned so new or cleaned filters sit properly.

Sleaford questions

Can you come to Sleaford after we close?

Yes, we can come after you close and finish before you open. The work in Sleaford can fit around your hours. Just call 0345 646 2711, or send details by email with your opening times and we will plan around them.

Is Sleaford within the area you cover?

Yes, Sleaford is part of our area, however small the site. A survey first, from pictures or a visit, means we arrive with the right kit.

How long will the unit be out of action?

It takes a single shift for a typical unit, longer for large or heavily soiled ones. The unit’s size and condition make the biggest difference, and we’ll confirm the time when we quote.

Can you look after several sites?

Yes. Our area covers London and the South East, so we can schedule a run of sites as one programme. Every site has its own report.

How much notice should we give?

It depends on the time you need and how big the job is. Tell us your preferred dates when you ask for a quote, and if it’s an emergency, call us any time.

How do you keep the site clean during the work?

Floors and surfaces near the work are sheeted before work begins, and waste is contained as we go. At the end, the area is cleaned down.

How much does AHU cleaning cost in Sleaford?

We don’t publish prices, because the cost depends on the job: how big it is, what state it’s in, how we reach it and the working hours. We fix the price before any work starts.

What’s TR19?

It’s BESA’s specification and the benchmark insurers, fire officers and EHOs look to. It sets out inspection, cleaning and record keeping, and it takes a risk-based approach.

Why act early in Sleaford

Cleaning a unit while it only has light dust is quick. Years of build-up make the job longer and harder, particularly where damp has made it stick. Our emergency line runs 24/7, but a planned visit to Sleaford is calmer for everyone.

You will not find a price list here, because the cost depends on the site in front of us. Call for a fixed quote, and we will explain what it covers.

Why us?

  • A written report with photos after every visit
  • Evenings, overnight and weekends, plus 24/7 emergency callout
  • Fixed quotes from a survey or pictures
  • Survey first, then a fixed quote

Take a look at our cost guide or our accreditations.

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