Surrey · Air handling unit cleaning
Air handling unit cleaning in Ash, Surrey
Our technicians work in Ash on air handling unit cleaning. Out-of-hours visits, a fixed quote and a written report with photos on every job.
- Odours coming through the supply air
- Leaves and litter drawn into the unit
- Plant that has been serviced but not cleaned
Landlords, agents and facilities managers
For anyone managing more than one site, we can plan visits across the whole estate and price them together. Every building has its own written report, so records stay tidy.
Multi-site operators often want one contractor and one number. We work across London and the South East, so visits at different addresses can be planned together and kept to a regular schedule.
How we handle AHU cleaning in Ash
Think of an AHU clean as a full check-up for the ventilation. We look inside each section, clean what we find and record it with pictures, so you can see the unit’s condition for yourself. The work covers filter sections, supply and extract fans and drain trays, and people most often call us about units that have only ever had filter changes and fan sections that haven’t been cleaned in years.
For a building near Ash, 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.
Every visit ends with a written report and photos, so there’s a dated record of the work. Where the work is a TR19® Grease clean, the certificate is issued through the BESCA Vent Hygiene Elite portal.
- Location
- Ash (GU12, GU10)
- Wider area
- Surrey
- Reporting
- Photo report after each visit
- Quote
- Fixed quote, typically within a working day
- Hours
- Out of hours as standard, 24/7 emergency line
- Call
- 0345 646 2711
- Last updated
- 30 October 2026
What happens if it’s left?
Standing water in a drain tray does not clear itself. Left alone, it can overflow, leak into the plant area or ceiling below and spread smells through the system. Clearing it now is a much smaller job. Systems on quieter sites still build up dirt and wear, just more slowly.
The price reflects the work, not guesswork. That’s why we survey first, from pictures or on site, and the price is agreed before work begins.
Why Ash businesses choose us
- Photo reports with every job
- Fixed quotes, usually within one working day
- A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- One contact for all your sites in London and the South East
Ash questions
Do you do school ventilation cleaning in Ash in the summer holidays?
Yes. The holidays are the usual time for school work. Food Standards Agency records list about 19 schools, colleges and universities with registered kitchens within about a mile and a half of Ash. Booking early in the term gives the best choice of holiday dates.
Do you work in villages like Ash?
Yes. Ash is within the area we cover across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
When should our AHU next be cleaned?
TR19® Air takes a risk-based approach, so it depends on inspection rather than a fixed interval. We recommend a next date in each report.
Can you clean the ducts connected to the AHU?
Yes. Ventilation ductwork cleaning to TR19® Air is part of what we do. It’s often worth doing both at once, and we can quote for both.
What is TR19?
It’s BESA’s specification and the benchmark insurers, fire officers and EHOs look to. It covers how systems are inspected, cleaned and checked, and it takes a risk-based approach.
Can we book visits on a schedule?
Yes. We run scheduled maintenance contracts, with visits at the interval your system needs. The report from each visit recommends the next date.
Do you have a 24/7 line?
Yes. There’s a 24/7 emergency line for anything that can’t wait until a planned visit. Ring any time and tell us what’s happened.
Which sectors do you work in?
Restaurants and pubs, hotels, schools and colleges, hospitals and care homes, offices and retail, as well as food production and leisure sites.
How it works
There’s very little for your team to do on the day. A contact on site lets us in at the agreed time and points us to the system, and the rest is down to us. Before we leave, the area is tidied and the paperwork follows. For a site near Ash, the work is booked around your opening hours, evenings and weekends included.
- The survey covers the unit, its access and how it can be shut down.
- We sheet the area and the unit is isolated.
- Each section is cleaned of dust, debris and slime.
- We clean the coils and clear the tray and drain.
- We close every panel, hand the unit back and send the report and certificate.
Before we arrive
- Arrange a key holder or contact on site
- Agree a time when the area can be out of use
- Find the previous report, if there is one
Get a fixed quote
If you need AHU cleaning in Ash, give us a ring on 0345 646 2711 or drop us a line. Tell us what kind of premises it is and when it’s open, and send pictures or your last report if you can. We normally send a fixed quote within one working day.
Related advice
AHU cleaning around Ash
Food Standards Agency records list about 19 schools, colleges and universities and about 13 care, childcare and hospital premises registered as food businesses across Ash and its immediate surroundings (about a mile and a half). Busy, occupied buildings like these are where clean supply air matters most. Ash is about 32 miles from central London, well within the area we cover across London and the South East. Evening, overnight and weekend visits are all possible. Guildford Hospital is the nearest hospital, about 4.8 miles east of Ash. Clean air matters most where people are unwell, and that’s as true in a care home as in a hospital.
School buildings such as Walsh CofE Junior School are typically done in the holidays, so classrooms are not disturbed. Hospitals such as Guildford Hospital (about 4.8 miles east) show how much a building can rely on clean ventilation, and smaller healthcare sites near Ash are no different. Workplaces around Ash station with an air handling unit need the filters, coils and drain tray looked at, as well as the ducts.
Ash is about 2 miles east of Aldershot, in Surrey. Whether your site is in the middle of Ash or further out, we cover AHU cleaning for every kind of premises, from a single unit to a large public building. Across Surrey, we cover 395 places, and Ash is one of them. Our Guildford page covers sites nearby (6 miles or so).
AHU cleaning in GU12 and GU10 follows the same survey, fixed quote and written report as everywhere else we cover. If you need AHU cleaning at premises on Ash Church Road, Square Field Way and Littlefield Close or a nearby road, our technicians can take on the work. Main roads around Ash include the A331 and B3206, which makes travel easy for evening and night visits. If your site is just outside Ash, we cover Ash Green (1 mile east), Tongham (1 mile south-west), Ash Vale (1 mile north), Seale (2 miles south) and Aldershot (2 miles west). Within a short drive, we also cover Guildford (6 miles east), Woking (8 miles north-east), Camberley (6 miles north), Farnham (4 miles south-west), Egham (15 miles north-east) and Frimley (5 miles north).
Local landmarks in Ash
In Ash, that means kitchens and buildings near Aldershot Park, The Connaught School and The Dover Arms and the streets around them. The nearest railway station is Ash station, about 0.5 miles north-east. Nearby you’ll also find Farnham Castle (4 miles south-west) and Ash Museum (within half a mile north-east). Green spaces nearby include Rowhill Nature Reserve and Hog's Back.
What affects the cost of AHU cleaning
There’s no set price list, because no two systems are the same. What we look at:
- The times the site is available
- The size of the system
- Site requirements such as sign-in and permits
- The condition we find in the survey
Putting the work off seldom saves money. Problems in a system tend to grow, and a neglected system can mean more work. If you are unsure, ring 0345 646 2711 or send us an email for straight advice and a fixed quote.
What to send for a quote
To help us quote quickly, please include:
- The site address and the type of premises
- Detail shots of panels, filters and grilles
- Photos showing the whole system and its surroundings
- Any previous report or certificate
Need a price for AHU cleaning? Please call us on 0345 646 2711, or send details by email with a few details about the site. We will explain what we’d do and send a fixed quote before anything is booked.
Keeping the system healthy
So the system stays in good health:
- Keep inspection doors on the unit in good order
- Note any water around the unit or leaks below it
- Make sure condensate is draining away
- Keep filter changes on time and recorded
Stick to the filter change schedule, as that does more than anything to keep the unit clean. Log every change so it’s easy to see when the next is due.
Keep the area around the intake clear. What’s near the intake ends up in the unit.
Different parts, different methods
Fans and fan sections
The fan section is cleaned with the unit switched off and isolated with your site team.
Rooftop and plant room units
Rooftop units take the weather, and intakes can collect leaves and debris. The intake section gets particular attention.
What your team can do, and what needs us
A few tasks are always specialist work: entering ducts, working on fans, testing dampers and taking grease readings need training, the right equipment and safe access. That is our job.
Day-to-day cleaning is something your team can do: wiping down canopy surfaces, cleaning filters and keeping a simple log. Inside the ducts, risers and fan is specialist work, and that’s where we come in.