Oxfordshire · Air handling unit cleaning
Longcot AHU cleaning
We cover Longcot for AHU cleaning. Out-of-hours visits, a fixed quote and a written report with photos on every job.
- Intake sections clogged with outdoor debris
- Dirty coils holding back the airflow
- Plant that needs cleaning after a refit
What we’re called out for in Longcot
No filter stops everything. What gets through settles on coils, fans and the inside of the casing, a little more each month.
These are the problems we see most often:
- Dirty filters cutting the airflow
- Dust-coated heating and cooling coils
- Air handling units never cleaned inside
- Condensate trays that will not empty
Faringdon Day Hospital, about 2.9 miles north, is the nearest hospital to Longcot, and healthcare sites of every size need their supply air kept clean.
Questions to ask before booking
- Whether they recommend a next date
- Whether the quote is based on a survey or pictures
- Their accreditations, such as BESCA Vent Hygiene Elite, CHAS or SafeContractor
- Exactly which parts of the system are covered
AHU cleaning for kitchens and businesses in Longcot
No two plant rooms are the same, whether it’s a compact unit in a ceiling void or a big unit on the roof. We look at the unit first, from photos or a site visit, and give you a fixed quote, so you know where you stand. If you are dealing with intake sections clogged with outdoor debris and dust-coated heating and cooling coils, we can help.
Somewhere as small as Longcot, ducted ventilation is usually limited to a school, a care home, a surgery or a converted business building, wherever there is one, but where it’s fitted, it needs the same inspection and cleaning as anywhere.
It’s worth checking any contractor’s accreditations. We are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we hold CHAS, SafeContractor and ISO 9001, and we’re fully insured.
- Place
- Longcot (SN7)
- Region
- Oxfordshire
- Reporting
- Written report with photos
- Quote
- A fixed price before work begins
- Working hours
- Out of hours as standard, 24/7 emergency line
- Call
- 0345 646 2711
- Page updated
- 30 October 2026
How the visit works
Your staff do not need to do much on the day. Someone lets us in at the agreed time and shows us where everything is, and we take it from there. Afterwards, the area is left tidy and the written report follows. In a small place like Longcot, the journey is planned ahead and the visit arranged around the site’s hours.
- We look at the unit and the plant area during the survey.
- The area is protected and the unit made safe.
- Each section is cleaned of dust, debris and slime.
- Coils and trays are cleaned and the condensate drain cleared.
- We close every panel, hand the unit back and send the report and certificate.
Preparing for the visit
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
- Tell us the best time to work, such as after service or at a weekend
- Name a contact who can let us in at the agreed time
Get a fixed quote
Photos are the quickest way to a quote: the system from a couple of angles, plus any access panels or hatches. Add the site type and your opening hours, and many jobs can be priced from that alone.
Advice
Ventilation in Longcot buildings
The nearest hospital to Longcot is Faringdon Day Hospital, about 2.9 miles north. Healthcare ventilation is a good example of why supply ducts need inspecting: the air goes straight to patients.
School buildings such as Longcot and Fernham Church of England Primary School are usually done in the holidays, so classrooms aren’t disturbed.
Longcot is in Oxfordshire. For AHU cleaning in and around Longcot, it’s easy to get a fixed quote: please give us a ring on 0345 646 2711 or drop us a line. We work across South East England and London, Longcot included. Longcot is one of 443 towns, villages and districts in Oxfordshire we cover for commercial clients. Oxford is in our area too, around 19 miles away.
AHU cleaning in SN7 is surveyed, quoted and booked the same way as anywhere else. AHU cleaning is available to premises on The Green, Church Close and Hughes Crescent and the roads around them. Other places close to Longcot include Fernham (1 mile north-east), Little Coxwell (2 miles north), Great Coxwell (2 miles north), Woolstone (2 miles south-east) and Uffington (2 miles south-east). Larger places within reach include Abingdon-on-Thames (15 miles east), Witney (13 miles north-east), Carterton (10 miles north), Wantage (8 miles east), Grove (8 miles east) and Faringdon (3 miles north).
What’s near Longcot
We work in commercial kitchens and buildings around Bricklayers Arms and Faringdon Community College and the streets around them. Other landmarks nearby include Faringdon Day Hospital (2.9 miles north) and Uffington Museum (2.1 miles south-east). For a walk, there’s Badbury Hill.
What affects the quote in Longcot
We don’t publish a price list, because sites vary so much. What we look at:
- The scale of the work
- Parking and loading at the site
- The condition we find in the survey
- Site requirements such as sign-in and permits
Putting the work off seldom saves money. Problems in a system tend to grow, which can make the next visit longer. If you’re not sure what’s needed, phone us on 0345 646 2711, or email photos for straight advice and a fixed quote.
What to send for a quote
Photos let us diagnose from a distance. The most useful are:
- When the site is open and when it’s quiet
- Any symptoms, from odd noises to smells or leaks
- Your last certificate, test record or report
- A few general shots of the system
For AHU cleaning in Longcot, give us a ring on 0345 646 2711, or email photos. Tell us what kind of premises it is and when it’s open, and send photos or your last report if you can. We usually send a fixed quote within one working day.
What your team can do, and what needs us
If your staff spot something between visits, such as dripping grease, a noisy fan, a smell or a filter that won’t come clean, they should report it rather than try to fix it. We can diagnose it and quote.
Staff cleaning doesn’t replace a specialist visit; it supports it. Clean filters and tidy surfaces slow the build-up, but hidden parts of the system still need specialist attention.
FAQs for Longcot
Do you work overnight in Longcot?
Yes, evening, overnight and weekend work is normal for us. The work in Longcot can fit around your hours. Tell us your opening hours when you ask for a quote.
Is Longcot in your area for AHU cleaning?
Yes, we work in Longcot and the places around it. Just give us a ring on 0345 646 2711 or drop us a line with a few details of the site.
What happens if you can’t reach some of it?
The report shows them clearly. In ductwork, new access panels are often the answer, which we can install.
What do you clean inside the unit?
Filters, coils, drain trays, the fan and the internal surfaces are all covered. What happens to the filters is agreed when we quote.
Can you look after several sites?
Yes. Tell us the addresses and what each needs and you’ll get one fixed quote.
Is a quote from photos possible?
Yes, if we can see what we need. Otherwise, we book a survey at a time that suits the site, then a fixed quote.
How long does an AHU clean take?
Typically the clean takes a single shift for a typical unit, longer for large or heavily soiled ones. The shutdown is planned to fit, out of hours if needed.
Where does the waste go?
We take it away when we go. During the work, it’s contained to keep the area clean.
How the job changes from site to site
Internal casing and panels
Dust settles on every internal surface of the unit. Each section is cleaned from the intake through to the outlet.
Fans and fan sections
The fan section is cleaned with the unit switched off and isolated in agreement with the site.
Why it’s worth doing now in Longcot
A light clean now is simpler than a heavy one later. Leave it for years and dirt bakes onto coils and casings, particularly where damp has made it stick. Out of sight is the usual reason a rural system goes too long without attention.
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.
Why choose Duct Doctor in Longcot
- Each visit written up, with pictures
- Accredited under CHAS and SafeContractor, with ISO 9001
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
- Work around your opening hours, with 24/7 emergency cover
Read our cost guide and how to check a contractor.
What AHU cleaning cannot fix
Not every problem is solved by AHU cleaning, and we’d rather say so up front. It will not put right:
- Damaged coils beyond cleaning
- Breakdowns that need a mechanical engineer
- Ventilation that was badly designed in the first place
Not sure which it is? You can phone us on 0345 646 2711 or use the quote form and we will tell you honestly before you book.
Parts of the system we cover
- Heating and cooling coils
- Drain trays
- Dampers and louvres
- Internal panels
- Filter sections
- Supply and extract fans