Reading · Air handling unit cleaning
Dunsden Green AHU cleaning
Cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces for Dunsden Green, with a survey first and a report with pictures at the end. Call for a fixed quote.
- Drain trays holding standing water
- Air handling units with blocked filters
- Units needing a clean before a new tenant or handover
Aftercare tips
Think of this as the after-treatment advice, in brief:
- Keep the area around the fresh air intake clear
- Check the drain tray is emptying during routine visits
- Do not ignore odours coming through the grilles
- Change filters on schedule and log each change
Once the clean is done, we send a TR19® certificate and a report with before and after photos. They belong in the plant or maintenance log.
Change or clean filters on time. Overloaded filters let more dirt through to the coils and fan.
About our AHU cleaning in Dunsden Green
Coils are where a lot of the dirt ends up. A coated coil restricts airflow and makes the unit work harder. Coils are cleaned carefully, with methods chosen so the fins aren’t flattened. If you have blocked condensate drains and slimy trays and odours coming through the supply air, we can put it right, from supply and extract fans, filter sections and dampers and louvres onwards.
For a building in or near Dunsden Green, access is agreed in advance and the visit is planned around the journey.
Duct Doctor has been trading since 2009, as a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 are in place too, and we carry full insurance.
- Location
- Dunsden Green (RG4)
- Wider area
- Reading
- Paperwork
- Report and photos after the visit
- Quote
- A fixed quote up front
- Hours
- Out of hours as standard, 24/7 emergency line
- Telephone
- 0345 646 2711
- Checked
- 30 October 2026
What happens on the day
We’re used to working while the site is closed. Evenings, nights and weekends are when much of our work happens, so a kitchen or building can carry on as usual the next day. On site, the work takes a single shift for a typical unit, longer for large or heavily soiled ones. For a village or hamlet like Dunsden Green, tell us about narrow lanes, gates and parking when you book.
- 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.
- We clean the coils and clear the tray and drain.
- The unit is closed up and handed back, with a report to follow.
Before we arrive
- Plan for cooking equipment or plant to be off before we arrive
- Let us know about permits to work or site inductions
- Clear loose items from the work area
Getting a quote
To help us quote: where the site is, what it is and its opening hours, photos of the system and any previous report or certificate. Then ring 0345 646 2711 or use the quote form.
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Dunsden Green: your questions answered
Is Dunsden Green in your area for AHU cleaning?
Yes. Our area runs across London and the South East, Dunsden Green included. To start, call 0345 646 2711 or send us an email with a few photos of the system.
Do you work overnight in Dunsden Green?
Yes, out-of-hours work is a big part of what we do. The site is handed back ready to open. Just call us on 0345 646 2711 or send us an email with your opening times and we will plan around them.
How much does AHU cleaning cost in Dunsden Green?
Every site is different, so each gets its own fixed quote. To get one, give us a ring on 0345 646 2711 or drop us a line and tell us about the site and its opening hours.
Can you clean the ducts connected to the AHU?
Yes, supply and extract ducts, grilles and diffusers. The survey shows whether the ducts need cleaning now.
What’s TR19?
A BESA specification, with two parts that matter most here: TR19® Grease for kitchen extracts and TR19® Air for supply and extract systems. It isn’t law, but it’s the benchmark.
Are you insured?
Yes, we’re fully insured. We also hold CHAS and SafeContractor for clients who vet their contractors.
Is a quote from pictures possible?
Yes, for many jobs. Send wide shots, close-ups of any access panels and anything that worries you, and we typically come back within one working day. If pictures are not enough, we’ll survey first.
How long will the unit be out of action?
The work takes a single shift for a typical unit, longer for large or heavily soiled ones. Large plant can be split over several shifts, and you can give us a ring on 0345 646 2711 or email us to plan it.
Also near Dunsden Green
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What happens if it’s left?
Cleaning a unit while it only has light dust is quick. Years of build-up make the job longer and harder, especially where there’s been moisture. A planned visit to Dunsden Green is easier to arrange than an emergency callout.
No two sites are the same, so we price each one individually. Size, access, the condition of the system and when we can work all make a difference.
Why us?
- A written report with photos after each visit
- Every job surveyed first
- Fixed quotes from a survey or pictures
- In business since 2009
What affects the cost of AHU cleaning
A fixed price needs a few facts first. We check:
- Whether it’s a one-off visit or part of a schedule
- Site requirements such as sign-in and permits
- Working hours and out-of-hours timing
- The condition of the system
What you pay depends on the size of the system, the condition it’s in and access to every part of it. You get a fixed price before we start, so you know where you stand.
What we need to know
There’s no need for technical detail. It helps if you can send:
- The site address and the type of premises
- How we’d reach plant on a roof or in a plant room
- Wide photos of the system and the area around it
- Problems your staff have spotted
Quotes are quick. Send a few details and photos, and we usually reply with a fixed quote within one working day. Where a survey is needed, we arrange a time that suits the site.
What your team can do, and what needs us
Your own staff can handle the daily basics: wiping canopies, washing grease filters and recording it in a log. Inside the ducts, risers and fan is specialist work, and that is where we come in.
Away from the kitchen, the in-house job is mainly checking: clear grilles, a log of filter changes and reporting anything odd. Cleaning inside ducts and units is specialist work.
Dunsden Green buildings and their air
There are about 5 care, childcare and hospital premises on the FSA’s food hygiene register within about 1.5 miles of central Dunsden Green. Where buildings like these have air handling units, filters, coils and drain trays need regular attention. Dunsden Green, about 36 miles from central London, is within our usual area. Visits are booked around your hours, evenings and weekends included. Dunsden Green’s nearest hospital, Royal Berkshire Hospital, is about 2.8 miles south. Hospitals show how much a building can rely on its ventilation, and smaller healthcare sites rely on theirs too.
Healthcare buildings such as Royal Berkshire Hospital, about 2.8 miles south, depend on their ventilation; if you manage a surgery, clinic or care home near Dunsden Green, yours matters too. School buildings such as St Martin's Catholic Primary School are usually done in the holidays, so classrooms are not disturbed.
Dunsden Green is about 1 mile north-east of Caversham, in Reading. Across the RG4 area, we cover AHU cleaning for commercial sites. 34 places in Reading are on our list, large and small.
We work across the RG4 postcode area for AHU cleaning and the roads nearby. If your site is just outside Dunsden Green, we cover Littlestead Green (1 mile west), Play Hatch (1 mile south), Caversham Park Village (1 mile south-west), Emmer Green (1 mile south-west) and Caversham (1 mile south-west). We also work in nearby towns such as Norcot (4 miles south-west), West Reading (4 miles south-west), Tilehurst Within (5 miles south-west), Shinfield (6 miles south), Arborfield Garrison (8 miles south) and Horncastle (5 miles south-west).
What’s near Dunsden Green
In Dunsden Green, that means kitchens and buildings near Ali's Pond Local Nature Reserve, Highdown School and Sixth Form Centre and The Flowing Spring pub and the streets around them. The closest station to Dunsden Green is Reading station, about 2.6 miles south-west of the centre. A little further out are Royal Berkshire Hospital (2.8 miles south) and Berkshire Medical Heritage Centre Museum (2.8 miles south). Open spaces near Dunsden Green include Sonning Hill and South Lake.
For landlords and multi-site operators
The Fire Safety Order 2005 puts the duty to manage fire risk on the responsible person, which may be the employer, owner, landlord, FM or managing agent. With shared responsibility, good records help everyone.
For anyone managing more than one site, we can plan visits across the whole estate and price them together. Each site gets its own report and pictures, so records stay tidy.
Honest limits
In fairness, there are a few things this work will not fix:
- Coils that are corroded or leaking and need replacing
- Ductwork downstream of the unit, which is a separate clean
- Controls and BMS settings that run the unit
If you’re not sure, just call us on 0345 646 2711 or use the quote form and we’ll give you a straight answer.
What the work covers
- Filter sections
- Supply and extract fans
- Internal panels
- Heating and cooling coils
- Drain trays
- Dampers and louvres