Surrey · Air handling unit cleaning
Air handling unit cleaning in Upper Hale, Surrey
AHU cleaning for Upper Hale, from a team that has been trading since 2009. Evenings, overnight and weekends, plus a 24/7 emergency line.
- Air handling units due a clean after building work
- Rooms that smell stuffy when the system runs
- Air handling units never cleaned inside
When it’s something else
It’s worth knowing the limits before booking:
- Controls and BMS settings that run the unit
- Faulty motors, drives or bearings
- Ductwork downstream of the unit, which is a separate clean
Not sure which it is? You can ring 0345 646 2711 or use the quote form and we will tell you honestly.
Parts of the system we cover
- Dampers and louvres
- Internal panels
- Heating and cooling coils
- Drain trays
- Filter sections
- Supply and extract fans
AHU cleaning for kitchens and businesses in Upper Hale
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 the report shows exactly what was done. Common call-outs are for dirty fans and fan housings and leaves and litter drawn into the unit, across filter sections, internal panels and drain trays.
Around a place like Upper Hale, ventilation systems tend to be in schools, surgeries, care homes and workplaces. Smaller systems still gather dust and need inspecting.
The paperwork matters as much as the work. You get a written report with photos after every visit, covering the work done, any areas we couldn’t access and a recommended next date. Keep it with your fire safety records so it’s ready for an insurer, fire officer or EHO.
- Place
- Upper Hale (GU9)
- Wider area
- Surrey
- Paperwork
- Photo report after each visit
- Quote
- A fixed price before work begins
- Working hours
- Evenings, overnight and weekends; 24/7 emergencies
- Call
- 0345 646 2711
- Reviewed
- 30 October 2026

Also in Upper Hale
Part by part
Fans and fan sections
The fan section is cleaned with the unit switched off and isolated in agreement with the site.
Filters
Filter condition tells you a lot about the rest of the unit. They’re photographed before and after for your records.
How we price AHU cleaning
The survey tells us what the work involves. The main factors are:
- The scale of the work
- When the work can happen, such as evenings, overnight or weekends
- Travel, parking and unloading
- Whether it’s a one-off visit or part of a schedule
One small site or a whole estate, we price it on the same basis: what needs doing, how we get to it and when. The price is fixed before we start.
What we need to know
Photos let us diagnose from a distance. Try to include:
- Your opening hours and when the area is out of use
- Any access panels or hatches you can see
- Any symptoms, from odd noises to smells or leaks
- How we’d reach plant on a roof or in a plant room
If you need AHU cleaning in Upper Hale, call us on 0345 646 2711, or send details by email. Tell us what kind of premises it is and when it’s open, and send photos or your last report if you can. A fixed quote normally follows within one working day.
Managing agents and facilities teams in Upper Hale
If you look after several sites, we can plan visits across the whole estate and price them together. Every building has its own written report, so records stay tidy.
Records are where multi-site compliance often slips. Each visit produces a dated report with pictures, ready to show insurers, fire officers or EHOs.
Looking after it afterwards
Here’s the after-treatment advice, in brief:
- Book the next check in line with the report
- Clear leaves and litter away from the intake
- Do not ignore odours coming through the grilles
- Stick to the filter change plan
The ducts served by the unit may need attention too. 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. If a section is hard to get into, it tends not to get checked.
Ventilation in Upper Hale buildings
Going by the FSA’s register, there are about 6 schools, colleges and universities and about 14 hospitals, care homes and childcare premises serving food within about 1.5 miles of central Upper Hale. Buildings like these often rely on mechanical ventilation, which TR19® Air covers. The nearest hospital to Upper Hale is Fleet Community Hospital, about 4.3 miles north-west. Hospitals show how much a building can rely on its ventilation, and smaller healthcare sites rely on theirs too. At about 35 miles from central London, Upper Hale sits well inside the area we cover. We work evenings, overnight and at weekends, so the visit fits around the site.
If you manage a school such as Hale School, ventilation cleaning is best booked for the holidays. Fleet Community Hospital, about 4.3 miles north-west, is the nearest hospital to Upper Hale, and healthcare sites of every size need their supply air kept clean.
Upper Hale is about 2 miles north of Farnham, in Surrey. We carry out AHU cleaning for businesses, landlords and public buildings in Upper Hale and the rest of Surrey. Upper Hale is one of 395 towns, villages and districts in Surrey where we work for commercial clients. Guildford is in our area too, about 10 miles from Upper Hale.
We work across the GU9 postcode area for AHU cleaning and the streets around it. Streets in the area include Queens Lane, Ball and Wicket Lane and Upper Hale Road, all of which we cover for AHU cleaning. Being close to the A3016 and B3005, Upper Hale is simple for us to get to for AHU cleaning. We also cover the places around Upper Hale: Heath End (1 mile east), Hale (1 mile south-east), Weybourne (1 mile east), Badshot Lea (1 mile east) and Farnham (2 miles south). Further out, we also cover Guildford (10 miles east), Woking (11 miles north-east), Camberley (7 miles north-east), Frimley (6 miles north-east), Haslemere (11 miles south) and Cranleigh (15 miles south-east).
What’s near Upper Hale
Locally, jobs take us to businesses close to Farnham Heath End School, Weybourne LNR and The Six Bells pub. Upper Hale’s nearest station is Farnham station, roughly 1.6 miles south. Well-known places in the area include Fleet Community Hospital (4.3 miles north-west) and Hart Shopping Centre (3.7 miles north-west). Green spaces nearby include Aunt's Pool and Beacon Hill.
Why it’s worth doing now in Upper Hale
Cleaning a unit while it only has light dust is quick. Leave it for years and dirt bakes onto coils and casings, especially where there’s been moisture. A site near Upper Hale that has to close at short notice is hard to cover for.
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.
Why choose Duct Doctor in Upper Hale
- Survey first, then a fixed quote
- Fixed quotes from a survey or photos
- In business since 2009
- Full insurance on every job
Upper Hale questions
Can you get to a site in Upper Hale?
Yes, we work in villages as well as towns, and Upper Hale is covered. The journey is planned ahead, so a few details about the route help.
Can ventilation in schools around Upper Hale be cleaned out of term?
Yes, out-of-term visits are normal for schools. The FSA’s register shows about 6 schools and colleges with food registrations within roughly a mile and a half of Upper Hale. You can give us a ring on 0345 646 2711 or drop us a line with the dates the site is empty.
What types of premises do you cover?
Any site with a kitchen or a ventilation system to look after, from a small pub to a hospital. Hotels, schools, care homes, offices, shops and leisure sites are all part of our work.
Which parts of an air handling unit do you clean?
We clean the filter section, heating and cooling coils, drain trays, fan and internal casing. Filters are cleaned or changed as agreed in the quote.
What accreditations do you have?
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.
How much does AHU cleaning cost in Upper Hale?
Every site is different, so each gets its own fixed quote. To get one, call 0345 646 2711, or email photos with the site type, opening hours and a few pictures.
What do you do with what you remove?
It leaves the site with us at the end of the visit. During the work, it’s contained to keep the area clean.
Will we get paperwork for the AHU clean?
Yes. A TR19® certificate and photo report are sent after the clean, including anything we think needs attention.
How the visit works
There are three stages on the day: getting the area ready, doing the work and signing it off. Getting ready means protecting surfaces and switching off what needs to be off, and the sign-off is a written report with photos. Most of the time goes on the work itself, which takes half a day to a full day per unit, with large plant planned over several shifts. For a place like Upper Hale, we load the van from the survey notes so the work can be done in one visit where possible.
- We start with a survey of the unit and a fixed quote for the work.
- With your site team, the unit is switched off and isolated, then the area around it protected.
- Filters, coils, fan section and casing are cleaned in turn.
- Standing water and slime come out of the tray and the drain is checked.
- We close up the unit and send the certificate and before and after pictures.
Getting ready for the visit
- Move anything stored near the system
- Let us know when the site is closed or quiet
- Find the previous report, if there is one
Getting a quote
Photos are the quickest way to a quote: the system from a couple of angles, plus any access panels or hatches. Tell us what kind of site it is and when it’s open, and we can price many jobs without a visit.