Surrey · Air handling unit cleaning
Walton-on-Thames AHU cleaning
Specialist AHU cleaning for Walton-on-Thames: a survey, a fixed price, careful work and proper paperwork. Call for a fixed quote.
- Dirty filters cutting the airflow
- Fan sections that haven’t been cleaned in years
- Rooms that smell stuffy when the system runs
AHU cleaning in Walton-on-Thames
Heating and cooling coils trap dust that gets past the filters. Dirt on the fins holds back air and makes the unit work harder to do the same job. We clean coils with methods suited to their condition, taking care not to damage the fins. The work covers supply and extract fans, dampers and louvres and internal panels, and common reasons people get in touch are stale or musty smells from the ventilation and condensate trays that won’t empty.
For a school, surgery or office in Walton-on-Thames, cleaning is planned around opening hours: evenings, weekends or school holidays.
The sign-off is always in writing: a dated report with pictures of the work, plus a certificate through the BESCA Vent Hygiene Elite portal when the work is a TR19® Grease clean. Any parts we couldn’t reach are recorded on it too.
- Where
- Walton-on-Thames (KT12, KT13)
- Region
- Surrey
- Paperwork
- Report and pictures after the visit
- Price
- A fixed quote up front
- Working hours
- Overnight and weekend work, 24/7 emergency callout
- Telephone
- 0345 646 2711
- Checked
- 30 October 2026
How the visit works
We turn up at the time agreed with you, which is often after service, overnight or at a weekend. Equipment that has to be off is switched off and allowed to cool first, 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. Before the visit, a few photos of the system and how to reach it help us plan the work in Walton-on-Thames.
- We start with a survey of the unit and a fixed quote for the work.
- We arrange the shutdown with your staff and sheet the area.
- Filters are dealt with as agreed, and the coils, fan and casing cleaned.
- We clean out the drain tray and make sure it drains.
- We close up the unit and send the certificate and before and after pictures.
Before we arrive
- Mention any parking or loading restrictions
- Allow time for equipment near the work to be turned off and cool down
- Agree a time when the area can be out of use
How to get a quote
We do not publish a price list, because no two systems are the same. Instead, we look at your site first, from photos or a survey, then send a fixed quote. To start, call us on 0345 646 2711 or use the quote form.
Related advice
AHU cleaning around Walton-on-Thames
The FSA’s food hygiene register lists about 6 schools, colleges and universities, about 23 caring premises (care homes, nurseries and hospitals) and about 3 hotels, B&Bs and guest houses with registered kitchens or food service across Walton-on-Thames and its immediate surroundings (about a mile and a half). Busy, occupied buildings like these are where clean supply air matters most. At about 16 miles from central London, Walton-on-Thames sits well inside the area we cover. We work evenings, overnight and at weekends, so the visit fits around the site. Walton-on-Thames’s nearest hospital, No. 2 New Zealand General Hospital, is about 0.8 miles west. Healthcare ventilation is a good example of why supply ducts need inspecting: the air goes straight to patients.
Wherever a school like Walton Oak Primary School has ducted ventilation, a half-term visit keeps the work out of lesson time. Healthcare ventilation, from large hospitals like No. 2 New Zealand General Hospital (about 0.8 miles west) to small clinics, depends on clean filters, coils and ducts.
Walton-on-Thames is about 9 miles north-east of Woking, in Surrey. We provide AHU cleaning for businesses, landlords and public buildings in Walton-on-Thames and the rest of Surrey. Our area takes in 395 places across Surrey, large and small. Our Guildford page covers sites nearby, about 12 miles away.
Here we cover the KT12 and KT13 postcode area for AHU cleaning. We cover sites on High Street, Sidney Road and Stuart Avenue and the roads around them. You’ll find Walton-on-Thames on the A244 and B365, which makes it straightforward for our technicians to reach for AHU cleaning. Other places close to Walton-on-Thames include Hersham (1 mile south), Shepperton (2 miles north-west), Burwood Park (2 miles south-west), Weybridge (2 miles south-west) and St George's Hill (2 miles south-west). Further out, we also cover Guildford (12 miles south-west), Woking (9 miles south-west), Camberley (14 miles west), Epsom (7 miles south-east), Redhill (14 miles south-east) and Ewell (7 miles east).
Landmarks near Walton-on-Thames
We work in commercial kitchens and buildings around RES Sixth Form College and Sunbury Park, among other places. The closest station to Walton-on-Thames is Walton-On-Thames station, about 0.8 miles south. A little further out are Elmbridge Museum (2.2 miles south-east) and No. 2 New Zealand General Hospital (0.8 miles west). For a walk, there’s Kempton Park Reservoirs and Ferris Meadow Lake.
Aftercare tips
Looking after the system between visits is straightforward, and it makes the next visit easier:
- Note any water around the unit or leaks below it
- Check the drain tray is emptying during routine visits
- Report stiff or damaged access doors
- Plan the next inspection before the last report gets filed away
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.
Keep the area around the intake clear. What’s near the intake ends up in the unit.
What staff can safely do
Staff cleaning does not replace a specialist visit; it supports it. Clean filters and tidy surfaces slow the build-up, but the parts you cannot see still need a specialist at the right interval.
When your team notices a problem between visits, like drips, unusual noise, smells or damaged filters, it’s best reported rather than tackled in-house. We will take a look and send you a fixed quote.
Places near Walton-on-Thames
Also in Walton-on-Thames
When to call us in Walton-on-Thames
Dirt in an AHU matters in two ways: the unit supplies the air people breathe, and a dirty unit has to work harder. For the people using the building every day, that is the air they breathe for hours on end.
Keep an eye out for any of the following:
- Plant that has been serviced but not cleaned
- Rooms that smell stuffy when the system runs
- Blocked condensate drains and slimy trays
- Dirty coils holding back the airflow
If you manage shops or offices close to Walton-On-Thames station, a TR19® Air inspection shows whether the ductwork needs cleaning.
What to look for in a quote
- What paperwork you get at the end
- What insurance they carry
- Whether the quote is based on a survey or pictures
- Whether the quote shows VAT
What the work involves, part by part
Heating and cooling coils
Coil fins are close together and catch the dust the filters miss. They’re cleaned using methods that won’t bend or flatten the fins.
Fans and fan sections
The fan moves all of the unit’s air, so dirt on it gets spread around. The impeller, its housing and the fan chamber are cleaned.
Walton-on-Thames: your questions answered
Is Walton-on-Thames in your area for AHU cleaning?
Yes, Walton-on-Thames is within the area we cover across London and the South East. To start, ring 0345 646 2711 or send us an email with a few photos of the system.
Do you work at weekends in Walton-on-Thames?
Yes, we can come after you close and finish before you open. That way a site in Walton-on-Thames doesn’t have to lose a day’s trading. Your opening times are the first thing we ask for.
Is a quote from pictures possible?
In many cases, yes. With good photos, the site type and your last report, we can price many jobs. Where we cannot see enough, we arrange a survey.
Do you have a 24/7 line?
Yes, any time. For anything urgent, such as a fan failure or damage after a fire, ring the 24/7 line, and we’ll advise on what to do next.
What do you need from me for a quote?
The site address, the type of premises and your opening hours, along with a few photos and any previous report.
What do you do with what you remove?
Anything we remove is contained as we work and taken away with us, from grease and debris to used cleaning water. None of it is left on site.
What does TR19 mean?
A BESA specification, with two parts that matter most here: TR19® Grease for kitchen extract systems and TR19® Air for general ventilation. It isn’t legislation, but it’s the standard people check against.
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.
Landlords, agents and facilities managers
Multi-site operators often want one contractor and one number. We cover South East England and London, so visits at different addresses can be planned together and kept to a regular schedule.
We also work for facilities teams across offices, schools and healthcare in Walton-on-Thames and across Surrey. Work can be phased by floor, building or site around the people who use them.
What happens if it’s left?
Dirty coils and fans make the unit strain to move the same air. That means more wear on the motor and rooms that feel less fresh, and a planned clean is far less disruptive than a breakdown. The sooner the work is done, the simpler the job for a site in Walton-on-Thames.
You will not find a price list here, because each job is priced on what it involves. For a fixed quote, call us on 0345 646 2711, or email photos, and we will talk you through it.
What you get with us
- Trading since 2009
- A single point of contact for sites across the South East and London
- Out-of-hours work and a 24/7 emergency line
- CHAS, SafeContractor and ISO 9001
Take a look at what affects the cost and how to check a contractor.