Surrey · Air handling unit cleaning
AHU Cleaning in Mytchett
Specialist AHU cleaning for Mytchett: a survey, a fixed price, careful work and proper paperwork. Call for a fixed quote.
- Drain trays holding standing water
- Plant that has been serviced but not cleaned
- Dirty fans and fan housings
FAQs for Mytchett
Can you work in Mytchett outside opening hours?
Yes, evening, overnight and weekend work is normal for us. It means the site in Mytchett keeps running as normal. When you phone us on 0345 646 2711, or email photos, mention when the site is quiet.
Can you clean school ventilation in Mytchett during the holidays?
Yes, holiday work suits schools best. The FSA’s register shows about 17 schools and colleges with food registrations within roughly a mile and a half of Mytchett. Send us your term dates when you phone us on 0345 646 2711, or email photos, and we’ll fit the work in.
What’s TR19?
TR19® is the BESA specification for keeping ventilation systems clean. Since 2019, TR19® Grease has been a standalone specification for grease in kitchen extract systems, and TR19® Air covers general supply and extract systems.
Does the AHU have to be shut down for cleaning?
Yes, while the clean is under way. We can work evenings, overnight or at weekends so the building is not left without ventilation when it’s busy.
Are you accredited?
Our accreditations are CHAS, SafeContractor and ISO 9001, and we are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. The Vent Hygiene Elite scheme is run by BESCA and audited independently.
When should our AHU next be cleaned?
There’s no single answer; it comes down to the building and the unit. Regular inspection shows when it’s due, and the report recommends a next date.
Do you clean the ductwork as well?
Yes. We reach the ducts through access panels, and any sections we can’t reach are noted in the report, with new panels fitted where needed.
Are you fully insured?
Yes. We’re fully insured, and we can share the details when you need them.
How we handle AHU cleaning in Mytchett
An AHU clean is a thorough examination and treatment of the unit. We look inside each section, clean what we find and record it with pictures, so you can see the unit’s condition for yourself. Common call-outs are for units needing a clean before a new tenant or handover and leaves and litter drawn into the unit, across dampers and louvres, internal panels and heating and cooling coils.
For a building near Mytchett, the visit is planned around how it’s used, and the journey is planned ahead. The work is the same as in any town: inspect, clean, record.
Duct Doctor has been trading since 2009, and we are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 are in place too, and we’re fully insured.
- Place
- Mytchett (GU16)
- Wider area
- Surrey
- Paperwork
- Written report with photos
- Quotes
- Fixed quote, normally within a working day
- Working hours
- When your site is closed, plus a 24/7 line
- Call
- 0345 646 2711
- Page updated
- 30 October 2026
What a clean will not put right
We’ll always give you a straight diagnosis, so here’s what AHU cleaning will not do:
- Controls and BMS settings that run the unit
- Coils that are corroded or leaking and need replacing
- Dirty ducts beyond the unit itself
Not sure which it is? You can phone us on 0345 646 2711, or email photos and we will tell you honestly.
Where we work
- Drain trays
- Filter sections
- Supply and extract fans
- Heating and cooling coils
- Internal panels
- Dampers and louvres
What we do, step by step
We work around your opening hours, not the other way round. Most visits are booked for when the area is out of use, such as evenings, overnight, early mornings or weekends. When the team arrives, the work area is protected and the relevant equipment is switched off to cool, and the work takes from a few hours for a compact unit to a day or more for a large one. For a site near Mytchett, the work is booked around your opening hours, evenings and weekends included.
- We agree a shutdown window that suits the building.
- Before cleaning, each section is photographed.
- We work through the unit from the intake to the outlet.
- The fan and drain tray are cleaned and the drain checked.
- After pictures are taken and the certificate issued.
Getting ready for the visit
- Let us know about parking and loading
- Dig out any earlier paperwork for the system
- Arrange a key holder or contact on site
Get a fixed quote
Getting a quote doesn’t take long. Call or email with a few details and you will normally have a fixed price within one working day. If we need to see the system first, we book a survey around your hours.
Advice
Part by part
Heating and cooling coils
Cooling coils stay damp in use, so dirt on them can turn sticky. We clean the coil and the tray beneath it together.
Fans and fan sections
Build-up on fan blades can upset the balance and add wear. A clean fan runs more smoothly.
Towns and villages near Mytchett
More services for Mytchett
Looking after it afterwards
Looking after the system between visits is straightforward, and it makes the next visit easier:
- Look at the condensate drain whenever the unit is serviced
- Change filters on schedule and log each change
- Keep inspection doors on the unit in good order
- File each AHU report in the maintenance log
If the ductwork hasn’t been cleaned, consider it next. Cleaning the unit and ducts together gives the best result, and we can survey both.
Make sure access doors and panels on the unit open easily. Sections that are awkward to open are the ones that get skipped.
Multi-site and managed buildings
Managing agents often deal with us directly. Send the address, what’s needed and how access works, and we will send a fixed quote.
From a single site to a large estate, the standard is the same: a survey first, a fixed quote, the work timed around the site and a report with photos.
What affects the cost of AHU cleaning
Your quote is based on your site. We take into account:
- Whether it’s a one-off visit or part of a schedule
- How big the system is
- Any permits to work or inductions
- The condition of the system
You won’t find a price list here, because the cost depends on the site in front of us. Call for a fixed quote, and we will talk you through it.
What we need to know
You don’t need the technical terms. It helps if you can send:
- Problems your staff have spotted
- Any access panels or hatches you can see
- Where the site is and what kind of site it is
- How we’d reach plant on a roof or in a plant room
To get a fixed quote, phone us on 0345 646 2711, or send details by email with the site type, your trading hours and a short description of the system. Photos and the last report, if you have one, make the quote quicker. You’ll normally have a quote within one working day.
Staff cleaning versus specialist work
Staff cleaning and specialist work aren’t the same thing. Wiping filters daily and washing them weekly keeps the visible parts in order, but they do not reach the grease that builds up further in. That part needs specialist access and equipment.
Staff cleaning does not replace a specialist visit; it supports it. Regular in-house cleaning slows the build-up, but hidden parts of the system still need specialist attention.
What AHU cleaning looks like in Mytchett
There are about 17 schools, colleges and universities, about 24 care, childcare and hospital premises and about 6 hotels and guest houses on the FSA’s food hygiene register in and around Mytchett, up to about a mile and a half out. Many buildings of this kind have supply and extract ductwork that gathers dust and needs inspecting. Mytchett, about 31 miles from central London, is within our usual area. A survey and a fixed quote come first, then the visit at a time that suits you. Frimley Park Hospital is the nearest hospital, about 2 miles north of Mytchett. Hospitals show how much a building can rely on its ventilation, and smaller healthcare sites rely on theirs too.
Wherever a school like Mytchett Primary School has ducted ventilation, a half-term visit keeps the work out of lesson time. Healthcare ventilation, from large hospitals like Frimley Park Hospital (about 2 miles north) to small clinics, depends on clean filters, coils and ducts.
Mytchett is about 2 miles south of Frimley, in Surrey. Mytchett gets the same approach as every site we work on: a survey first, a fixed quote, work timed around your hours and a report with photos. Mytchett is one of 395 towns, villages and districts in Surrey we cover for commercial clients. For sites nearby, see our Guildford page (7 miles or so).
Work in GU16 is surveyed, quoted and booked the same way as anywhere else. You’ll find streets such as Wynfields, Coleford Close and Burgess Close, and we cover them all for AHU cleaning. Being close to the B3411, Mytchett is easy for our technicians to reach at any hour. We also cover the places around Mytchett: North Camp (1 mile south-west), Ash Vale (2 miles south), Farnborough (2 miles west), Cove (3 miles west) and Southwood (3 miles west). We also work in nearby towns such as Guildford (7 miles south-east), Woking (7 miles east), Camberley (3 miles north), Farnham (6 miles south-west), Egham (12 miles north-east) and Walton-on-Thames (15 miles north-east).
Landmarks near Mytchett
Locally, jobs take us to businesses close to Henry Tyndale School, Prince of Wales pub and Sixth Form College, among other places. Nearby too are Frimley Lodge Park (0.6 miles north) and National Aerospace Library (1.4 miles west). Mytchett’s nearest station is Farnborough North station, roughly 1.1 miles north-west of the centre. Well-known places in the area include Frimley Park Hospital (2 miles north) and Royal Army Dental Corps Historical Museum (1.8 miles south-west). Open spaces near Mytchett include Danger Hill and Aunt's Pool.