Surrey · Air handling unit cleaning
Air handling unit cleaning in Boundstone, Surrey
One call covers AHU cleaning in Boundstone, from survey to sign-off. Fully insured, with CHAS, SafeContractor and ISO 9001.
- Dirty filters cutting the airflow
- Units that have only ever had filter changes
- Fan sections that haven’t been cleaned in years
Multi-site and managed buildings
We work for landlords, managing agents and facilities managers as well as the people running the site. Where a system serves more than one tenant, such as a shared riser, it helps to agree who arranges the work, and we can quote for the whole system.
For anyone managing more than one site, we can schedule visits across all of them on one quote. Every building has its own written report, so each one has its own record.
AHU cleaning in Boundstone
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, which is why we clean the unit itself, not just the ducts. The work covers internal panels, supply and extract fans and drain trays, and people most often call us about rooms that smell stuffy when the system runs and dirty filters cutting the airflow.
For a building near Boundstone, 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, 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.
- Place
- Boundstone (GU10)
- Wider area
- Surrey
- Reporting
- Report and pictures after the visit
- Quote
- A fixed price before work begins
- Working hours
- Nights, weekends or holidays to suit you
- Call
- 0345 646 2711
- Last updated
- 30 October 2026
Nearby places to Boundstone
What else we do in Boundstone
What the work involves, part by part
Filters
Dirty filters cut airflow and let dirt slip past their frames. We clean the frames and rails so the filters sit tight.
Rooftop and plant room units
Units on roofs and in plant rooms can be awkward to reach. We plan safe access as part of the survey so the quote reflects it.
Ventilation in Boundstone buildings
There are about 6 schools, colleges and universities and about 7 care, childcare and hospital premises on the FSA’s food hygiene register within about 1.5 miles of central Boundstone. Busy, occupied buildings like these are where clean supply air matters most. About 38 miles out from central London, Boundstone is part of the South East area we work across. Evening, overnight and weekend visits are all possible.
Ventilation work in and around Boundstone is risk-based: inspect, then clean what needs it. For schools like St Peter's CofE Primary School, the holidays are the usual time to inspect and clean ventilation.
Boundstone is about 2 miles south-west of Farnham, in Surrey. If you need AHU cleaning in Boundstone, it’s easy to get a fixed quote: please call us on 0345 646 2711 or use the quote form. Our area covers London and the South East, including Boundstone. Across Surrey, we cover 395 places, and Boundstone is one of them. For sites nearby, see our Guildford page, about 11 miles away.
Our technicians cover all of GU10 for AHU cleaning and the streets around it. AHU cleaning is available to premises on Jubilee Lane, Vine Way and Vine Lane and nearby roads. If your site is just outside Boundstone, we cover Shortheath (1 mile north), Wrecclesham (1 mile north-west), Rowledge (1 mile south-west), Holt Pound (1 mile west) and Batt's Corner (2 miles south-west). Larger places within reach include Guildford (11 miles east), Woking (13 miles north-east), Camberley (11 miles north), Frimley (9 miles north), Haslemere (8 miles south-east) and Cranleigh (15 miles east).
Local landmarks in Boundstone
We work in commercial kitchens and buildings around Edgeborough School, Weydon School and Underdown nature reserve. The nearest railway station is Farnham station, about 1.7 miles north-east. Nearby you will also find Farnham Castle (2 miles north) and Museum of Farnham (1.6 miles north). The countryside around Boundstone includes Culverswell Hill and Farnham Heath.
Leave it or put it right?
A slimy drain tray only gets worse. Leave it and you risk overflows, leaks into the space below and odours carried round the building. Clearing it now is a much smaller job. It’s better to plan the work at a site near Boundstone than wait for a failure.
When the work has to happen, how we reach it and how big the site is can all change the price. We take each of them into account, and the price is fixed before work begins.
Why book with us
- Accredited under CHAS and SafeContractor, with ISO 9001
- Photo reports with every job
- Evenings, overnight and weekends, plus 24/7 emergency callout
- Fixed quotes from a survey or photos
See how cleaning jobs are priced or our accreditations and certificates.
Aftercare tips
Results last longer with the right care. We suggest:
- Flag stale or damp smells in the supply air
- Check the drain tray is emptying during routine visits
- File each AHU report in the maintenance log
- Keep the area around the fresh air intake clear
Once the clean is done, we send a TR19® certificate and a report with before and after photos. Keep both with the building’s maintenance records.
Change or clean filters on time. Overloaded filters let more dirt through to the coils and fan.
When something else is needed
Before you book, it helps to know what’s not included:
- Building management system faults
- Faulty motors, drives or bearings
- Coils that are corroded or leaking and need replacing
If in doubt, give us a ring on 0345 646 2711, or send details by email and we will say what we think.
What the work covers
- Internal panels
- Dampers and louvres
- Supply and extract fans
- Drain trays
- Heating and cooling coils
- Filter sections
What happens on the day
On the day, we arrive at the time agreed with you, often in the evening, overnight or at the weekend so the site keeps working. Equipment that has to be off is switched off and allowed to cool before any work starts, and the area around the work is covered and protected. On site, it takes half a day to a full day per unit, with large plant planned over several shifts. A site near Boundstone usually has room to park, so the questions are about access to the system and your hours.
- First we agree when the unit can be switched off, including evenings or weekends.
- 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
- Name a contact who can let us in at the agreed time
- Tell us about site rules, permits or sign-in
- Have your last certificate or report to hand
Get a fixed quote
Every quote begins with a look at the system, from your pictures and details or, where that isn’t enough, a survey on site. Then we send a fixed price so you know the cost before any work starts.
Related advice
What affects the quote in Boundstone
The diagnosis comes before the price. We look at:
- One-off work versus a regular cycle
- How easy every part is to reach
- The size of the system
- The condition of the system
Kitchens, offices, schools and hospitals are all priced the same way: how much there is, how we reach it, what state it’s in and when we can work. Ask for a fixed quote and we will go through it with you.
Helping us quote
What to send for a quote:
- Your last certificate, test record or report
- A few general shots of the system
- Any access panels or hatches you can see
- Your opening hours and when the area is out of use
If you need AHU cleaning in Boundstone, phone us on 0345 646 2711, or email photos. Tell us what kind of premises it is and when it’s open, plus pictures or the previous report if they’re to hand. We typically send a fixed quote within one working day.
Questions from Boundstone
Can you clean school ventilation in Boundstone during the holidays?
Yes, and it’s the easiest time to do it. Food Standards Agency records list about 6 schools, colleges and universities with registered kitchens within about a mile and a half of Boundstone. Send us your term dates when you call 0345 646 2711 or use the quote form, and we will fit the work in.
Can you come to Boundstone after we close?
Yes, evening, overnight and weekend work is normal for us. It means the site in Boundstone keeps running as normal. Tell us your opening hours when you ask for a quote.
Will we get paperwork for the AHU clean?
Yes. You receive a certificate and a report showing each section before and after, including anything we think needs attention.
Can you quote from pictures?
Yes, where the photos show enough. If not, a site survey comes first, then a fixed quote.
Where does the waste go?
Anything we remove is contained as we work and taken away with us, including grease, debris and dirty water. We don’t leave it behind.
Do you survey before quoting?
Yes, always. Diagnosis comes before treatment: the survey shows what needs doing and what access we need, and the quote is based on that.
What’s TR19?
TR19® is BESA’s specification for ventilation hygiene. Since 2019, TR19® Grease has been a standalone specification for grease in kitchen extract systems, while TR19® Air covers other supply and extract ductwork.
How long does it take to clean an air handling unit?
It takes from a few hours for a compact unit to a day or more for a large one. The unit’s size and condition make the biggest difference, and we’ll confirm the time when we quote.