Oxfordshire · Air handling unit cleaning

AHU Cleaning in Swinford

Our technicians work in Swinford on cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces. Fixed quotes, work around your opening hours and photo reports as standard.

  • Blocked condensate drains and slimy trays
  • Dirty filters cutting the airflow
  • Fan sections that haven’t been cleaned in years

AHU cleaning in Swinford

AHU cleaning in Swinford

If the units serving a building in Swinford have only had filter changes for years, the coils, fan and casing can be carrying far more dirt than anyone has seen. A full clean deals with all of it. We are often asked to deal with blocked condensate drains and slimy trays and coils clogged with dust and debris, across heating and cooling coils, filter sections and dampers and louvres.

In a village or hamlet like Swinford, few buildings have mechanical ventilation, but those that do need it inspected and cleaned like any other.

We have been trading since 2009, and we’re 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
Swinford (OX29)
Wider area
Oxfordshire
Paperwork
Photo report after each visit
Quotes
A fixed quote up front
Working hours
Nights, weekends or holidays to suit you
Phone
0345 646 2711
Last updated
30 October 2026
The Duct Doctor team standing beside their branded white and blue vans

How it works

The visit has three parts: getting the area ready, doing the work and signing it off. Set-up means sheeting and making equipment safe, while signing off means the written report and pictures. Most of the time goes on the work itself, and that takes from a few hours for a compact unit to a day or more for a large one. Rural roads and tight entrances are worth telling us about before a visit to Swinford.

  1. We look at the unit and the plant area during the survey.
  2. We sheet the area and the unit is isolated.
  3. Each section is cleaned of dust, debris and slime.
  4. We clean the coils and clear the tray and drain.
  5. We close every panel, hand the unit back and send the report and certificate.

Before we arrive

  • Tell us where we can park and unload
  • Mention any locked doors, roof access or ceiling voids
  • Let us know about permits to work or site inductions

How to get a quote

For AHU cleaning in Swinford, call us on 0345 646 2711, or send details by email. Tell us what kind of premises it is and when it’s open, plus photos or the previous report if they’re to hand. We typically send a fixed quote within one working day.

Ask for a quote

Related advice

Keeping the system healthy

Here’s the after-treatment advice, in brief:

  • Don’t store bins or materials near the intake
  • Make sure condensate is draining away
  • Report musty smells from the vents right away
  • Store the TR19 paperwork where auditors can find it

Once the clean is done, we send a TR19® certificate and a report with before and after photos. Keep both with the building’s maintenance records.

Make sure access doors and panels on the unit open easily. If a section is hard to get into, it tends not to get checked.

What your team can do, and what needs us

Some jobs should never be done in-house: entering ducts, working on fans, testing dampers and taking grease readings need training, the right equipment and safe access. Leave those to us.

For ventilation and air handling systems, in-house care is mostly about checks: clear grilles, a log of filter changes and reporting anything odd. The inside of ducts and units needs a specialist.

What affects the cost of AHU cleaning

There’s no set price list, because sites vary so much. The quote depends on:

  • Any permits to work or inductions
  • Where the site is and how we reach it
  • Access, including roofs, risers and ceiling voids
  • How many systems or sites are involved

Combining work into one visit or one programme often makes better use of the time. Mention every system or site you need covered and we’ll price it together.

What we need to know

When you contact us, it’s useful to have:

  • The site address and the type of premises
  • A few general shots of the system
  • Any access panels or hatches you can see
  • Your opening hours and when the area is out of use

Some systems can be priced from photos; 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.

What AHU cleaning looks like in Swinford

The FSA’s food hygiene register lists about 4 schools, colleges and universities and about 6 hospitals, care homes and childcare premises with registered kitchens or food service in Swinford and the streets around it, up to about 1.5 miles out. Many buildings of this kind have supply and extract ductwork that gathers dust and needs inspecting. The nearest hospital to Swinford is Radcliffe Infirmary, about 4.2 miles east. Healthcare ventilation is a good example of why supply ducts need inspecting: the air goes straight to patients. About 57 miles out from central London, Swinford is part of the South East area we work across. A survey and a fixed quote come first, then the visit at a time that suits you.

If you run a surgery, dental practice or care home near Swinford, clean ventilation matters as much to you as to a hospital like Radcliffe Infirmary (about 4.2 miles east).

Swinford is about 6 miles west of Oxford, in Oxfordshire. Across the OX29 area, we can carry out AHU cleaning at your premises. Swinford is one of 443 places in Oxfordshire we cover for AHU cleaning. Our Oxford page covers sites nearby (6 miles or so).

Postcode districts we cover here for AHU cleaning: OX29. Close by, we work in Eynsham (1 mile north-west), Farmoor (1 mile south-east), Cassington (1 mile north-east), Filchampstead (2 miles south) and Wytham (2 miles east). Further out, we also cover Oxford (6 miles east), Didcot (12 miles south-east), Bicester (12 miles north-east), Abingdon-on-Thames (7 miles south-east), Witney (6 miles west) and Carterton (10 miles west).

Around Swinford

Locally, jobs take us to businesses close to The Talbot Public House and Attached Stable and Bartholomew School. For rail, the closest station is Hanborough station, roughly 3.6 miles north. Other landmarks nearby include Oxford Castle and earlier settlement remains (4.4 miles east) and Oxford Bus Museum (3.6 miles north). For a walk, there’s Cumnor Hill and Hook Meadow and The Trap Grounds.

Map of Swinford © OpenStreetMap contributors

Your questions about AHU cleaning in Swinford

Is Swinford within the area you cover?

Yes, Swinford is part of our area, however small the site. Let us know about access, parking and anything unusual about getting there when you book.

Do you do school ventilation cleaning in Swinford in the summer holidays?

Yes, out-of-term visits are normal for schools. There are about 4 schools, colleges and universities on the FSA’s food hygiene register within about 1.5 miles of Swinford. Tell us your holiday dates and we’ll book the visit for when the site is empty.

How long does it take to clean an air handling unit?

The work takes half a day to a full day per unit, with large plant planned over several shifts. Bigger units can be phased, so phone us on 0345 646 2711, or email photos to talk it through.

What if parts of the system can’t be reached?

We never leave them off the paperwork. The report says which parts couldn’t be reached and why, along with a quote to put access in.

Do you offer maintenance contracts?

Yes. Regular plans can run on 3, 6 or 12-monthly cycles, to suit the system and how it’s used.

Which parts of an air handling unit do you clean?

The main parts are the filters, coils, drain tray, fan and inside of the casing. We confirm the scope after looking at the unit.

Do you survey before quoting?

Yes, always. Diagnosis comes before treatment: the survey shows what needs doing and what access we need, and the quote is based on that.

What’s TR19?

TR19® is BESA’s specification for ventilation hygiene. Since 2019, TR19® Grease has been a standalone specification for grease in kitchen extract systems, while TR19® Air covers other supply and extract ductwork.

What we are called out for in Swinford

Wherever there’s a cooling coil, there’s condensate. A blocked outlet or a badly sloped tray leaves standing water, and that’s where slime and odours start.

Most sites get in touch when they notice something like this:

  • Odours coming through the supply air
  • Dirty filters cutting the airflow
  • Dirty coils holding back the airflow
  • Air handling units due a clean after building work

Classrooms and halls at schools such as Eynsham Community Primary School are easiest to work in when pupils are away.

Comparing quotes

  • Whether a written report and photos are included
  • How VAT is shown on the quote
  • Exactly which parts of the system are covered
  • Whether they’re fully insured

Choosing a duct cleaning contractor

Why it’s worth doing now in Swinford

Leave an AHU uncleaned and the dirt doesn’t stay put. It moves on into the ductwork and out into the rooms, so cleaning the ducts without the unit only goes so far. A planned visit to Swinford is easier to arrange than an emergency callout.

What you pay reflects the actual work. That’s why every job is surveyed first, and why the quote is fixed before work begins.

Why Swinford businesses choose us

  • Photo reports with every job
  • CHAS and SafeContractor accredited, with ISO 9001
  • Fixed quotes, normally within one working day
  • A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease

Take a look at how cleaning jobs are priced and how to check a contractor.

What a clean will not put right

It’s worth knowing the limits before booking:

  • Faulty motors, drives or bearings
  • Dirty ducts beyond the unit itself
  • Problems with the unit’s controls or sensors

If in doubt, call 0345 646 2711 or email us and we’ll say what we think.

Where we work

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