Kent · Air handling unit cleaning
AHU Cleaning in Guston
Our technicians work in Guston on AHU cleaning. Out-of-hours visits, a fixed quote and a written report with pictures on every job.
- Leaves and litter drawn into the unit
- Air handling units with blocked filters
- Plant that needs cleaning after a refit
What affects the quote in Guston
Before we fix a price, we need to know a few things. We check:
- The scale of the work
- What state the system is in
- Site rules, permits and inductions
- The times the site is available
No two sites are the same, so we price each one individually. The size of the job, how we reach it, its condition and the working hours all make a difference.
What to send for a quote
You do not need the technical terms. It helps if you can send:
- Any access panels or hatches you can see
- Photos showing the whole system and its surroundings
- Where the plant sits or the system leaves the building, such as a roof or outside wall
- The site address and the type of premises
We do not publish a price list, because every site is different. Instead, we look at your site first, from pictures or a survey, then send a fixed quote. To get going, call us on 0345 646 2711, or email photos.
AHU cleaning in Guston, done properly
An air handling unit is the heart of a building’s ventilation: it draws air in, filters it, heats or cools it and pushes it round the ductwork. Whatever builds up inside it travels with that air, so cleaning the unit matters as much as cleaning the ducts. Typical jobs include odours coming through the supply air and dirty coils holding back the airflow, on internal panels, supply and extract fans and heating and cooling coils.
In a village or hamlet like Guston, few buildings have mechanical ventilation, but where it’s fitted, it needs the same inspection and cleaning as anywhere.
Duct Doctor has been trading since 2009, as a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we’re fully insured.
- Where
- Guston (CT15)
- Wider area
- Kent
- Records
- Written report with pictures
- Quote
- Fixed quote, normally within a working day
- Hours
- When your site is closed, plus a 24/7 line
- Call
- 0345 646 2711
- Updated
- 30 October 2026
Common problems we fix in Guston
An AHU’s intake draws in outdoor air and everything in it: dust, pollen, leaves and debris. The intake section and first filters take the brunt, and the finer material travels on.
Common reasons sites call us include:
- Rooms that smell stuffy when the system runs
- Air handling units with blocked filters
- Fan sections that haven’t been cleaned in years
- Units needing a clean before a new tenant or handover
Healthcare ventilation, from large hospitals like Royal Victoria Hospital (about 1.9 miles south) to small clinics, depends on clean filters, coils and ducts.
Questions to ask before you book
- What paperwork you get at the end
- Whether the work can be done while the site is closed
- What’s included in the scope, part by part
- Whether the quote is based on a survey or photos
FAQs for Guston
Do you work overnight in Guston?
Yes, nights and weekends are routine for us. That way a site in Guston does not have to lose a day’s trading. Tell us your opening hours when you ask for a quote.
Do you clean school ventilation in Guston in the holidays?
Yes, out-of-term visits are normal for schools. The FSA’s register shows about 5 schools and colleges with food registrations within roughly a mile and a half of Guston. Send us your term dates when you call us on 0345 646 2711, or email photos, and we will fit the work in.
What accreditations do you have?
We hold CHAS, SafeContractor and ISO 9001, alongside BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease. Vent Hygiene Elite is run by BESCA and independently audited.
Do you have a 24/7 line?
Yes. Our emergency line runs 24/7, for problems that can’t wait. Call us any time and explain what’s happened.
Is there a report after cleaning?
Yes, both a certificate and a report with photos. It includes a recommended date for the next check.
What does AHU cleaning cost?
Every site is different, so each gets its own fixed quote. To get one, call us on 0345 646 2711 or send us an email and tell us about the site and its opening hours.
Can one contract cover all our sites?
Yes. We work across South East England and London, so we can schedule a run of sites on one programme. Every site has its own report.
What about areas you can’t get to?
We record them on the report, with a note of where it is, and we tell you what would make it reachable, such as extra access panels in ductwork.
Staff cleaning versus specialist work
Staff cleaning doesn’t replace a specialist visit; it supports it. Regular in-house cleaning slows the build-up, but the parts you cannot see still need a specialist at the right interval.
Your own staff can handle the daily basics: wiping down canopy surfaces, cleaning filters and keeping a simple log. What they cannot safely do is clean inside the ductwork, the fan or the risers, and that’s where we come in.
How the visit works
At the end of the visit, someone from your team can look over the work with us. We point out anything that couldn’t be reached or needs a follow-up, and the same goes into the written report. The visit takes a single shift for a typical unit, longer for large or heavily soiled ones. Visits to a village like Guston are booked in advance, at a time that suits whoever runs the site.
- First the unit is surveyed, from photos or a visit, and the scope agreed.
- The unit is shut down with your site team and the area protected.
- Filters, coils, fan section and casing are cleaned in turn.
- We clean out the drain tray and make sure it drains.
- You get a TR19® certificate and a photo report.
Preparing for the visit
- Make sure someone can let us in and lock up afterwards
- Allow time for equipment near the work to be turned off and cool down
- Mention any sign-in, permit or induction we need
Getting a quote
Getting a quote doesn’t take long. Send a few details and photos, and we typically reply with a fixed quote within one working day. If we need to see the system first, we book a survey around your hours.
Read more
Keeping the system healthy
Good habits slow the build-up between visits. Our tips:
- Keep inspection doors on the unit in good order
- Plan the next inspection before the last report gets filed away
- Make sure condensate is draining away
- Keep the area around the fresh air intake clear
Photos in the report cover the filters, coils, drain tray, fan and casing, and note any part we couldn’t get to. Any defects we noticed, like a leaking tray or damaged lining, are listed.
Keep the unit’s doors and panels in working order. If a section is hard to get into, it tends not to get checked.
Landlords, agents and facilities managers
Records are where multi-site compliance often slips. Every visit ends with a dated report and pictures, so you can show an insurer or inspector what was done at each site.
Managing agents often deal with us directly. Send the address, what’s needed and how access works, and we’ll send a fixed quote.
Also near Guston
What else we do in Guston
AHU cleaning in Guston: local notes
The FSA’s food hygiene register lists about 5 schools, colleges and universities and about 4 hospitals, care homes and childcare premises with registered kitchens or food service within roughly a mile and a half of the centre of Guston. Where buildings like these have air handling units, filters, coils and drain trays need regular attention. The nearest hospital to Guston is Royal Victoria Hospital, about 1.9 miles south. Clean air matters most where people are unwell, and that’s as true in a care home as in a hospital.
Classrooms and halls at schools such as Duke of York's Royal Military School are easiest to work in when pupils are away.
Guston is about 2 miles north-east of Dover, in Kent. We provide AHU cleaning for businesses, landlords and public buildings in Guston and the rest of Kent. We cover 922 places across Kent, from busy centres to quieter spots. We also work in Maidstone, about 35 miles from Guston.
We cover every part of the CT15 postcode area for AHU cleaning and the roads nearby. That includes premises on The Street, Chance Meadow and The Lane and the roads around them. Other places close to Guston include East Langdon (1 mile north-east), Church Whitfield (1 mile north-west), West Cliffe (1 mile east), Martin Mill (2 miles north-east) and Charlton-in-Dover (2 miles south-west). Further out, we also cover Canterbury (14 miles north-west), Folkestone (8 miles south-west), Ramsgate (13 miles north), Broadstairs (15 miles north), Deal (5 miles north-east) and Hythe (12 miles south-west).
Local landmarks in Guston
Around Guston, our work takes us to kitchens and buildings near Connaught Park, St Edmund's Catholic School and Swingate Inn, among other places. The closest station to Guston is Martin Mill station, about 1.6 miles north-east. Other landmarks nearby include Royal Victoria Hospital (1.9 miles south) and Dover Castle (1.8 miles south). Not far away are Dover Western Heights.
When it’s something else
A few issues sit outside what this work can do:
- Faulty motors, drives or bearings
- Ductwork downstream of the unit, which is a separate clean
- Leaking heating or cooling coils
If in doubt, call 0345 646 2711 or use the quote form and we’ll say what we think.
Parts of the system we cover
- Dampers and louvres
- Supply and extract fans
- Filter sections
- Drain trays
- Heating and cooling coils
- Internal panels