Surrey · Air handling unit cleaning
Air handling unit cleaning in Frimley, Surrey
AHU cleaning for commercial sites in Frimley and across Surrey. BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease.
- Coils clogged with dust and debris
- Plant that has been serviced but not cleaned
- Air handling units with blocked filters
What we do, step by step
Before we leave, we walk the area with whoever is on site. Anything we couldn’t reach or that needs attention is pointed out there and then, and the same goes into the written report. All told, the work takes a single shift for a typical unit, longer for large or heavily soiled ones. A few pictures of the system and its access points help us plan a visit in Frimley.
- The survey covers the unit, its access and how it can be shut down.
- The area is protected and the unit made safe.
- Dirt and debris are removed from each section.
- We clean the coils and clear the tray and drain.
- The unit is closed up and handed back, with a report to follow.
How to prepare
- Clear the space around the work
- Plan for cooking equipment or plant to be off before we arrive
- Find the previous report, if there is one
Get a fixed quote
There’s no standard 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, ring 0345 646 2711, or email photos.
Related advice
AHU cleaning in Frimley, done properly
Coils are where a lot of the dirt ends up. Dirt on the fins holds back air and makes the unit work harder to do the same job. Coils are cleaned carefully, with methods chosen so the fins are not flattened. If you are dealing with blocked condensate drains and slimy trays and leaves and litter drawn into the unit, we can put it right.
Many schools and offices in a town like Frimley have a mix of older and newer ventilation. The work starts with an inspection to decide what needs cleaning.
We are CHAS and SafeContractor accredited, we hold ISO 9001 and we are fully insured. We are also a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we have been trading since 2009.
- Location
- Frimley (GU16, GU15)
- Wider area
- Surrey
- Paperwork
- Report and pictures after the visit
- Quote
- Fixed quote, usually within a working day
- When we work
- Evenings, overnight and weekends; 24/7 emergencies
- Call
- 0345 646 2711
- Last updated
- 30 October 2026
Fixed quotes for AHU cleaning in Frimley
You’ll get a fixed price before any work starts. It’s based on:
- How many systems or sites are involved
- A single visit or a regular plan
- Travel, parking and unloading
- Access, including roofs, risers and ceiling voids
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 give you a fixed price before any work starts.
What to send for a quote
We can often survey from photos. Try to include:
- Any access panels or hatches you can see
- Wide photos of the system and the area around it
- The site address and the type of premises
- The paperwork from the last visit, if you have it
To help us quote: where the site is, what it is and its opening hours, a few photos and the last certificate or report, if there is one. Then give us a ring on 0345 646 2711, or email photos.
When it’s something else
To be straight with you, there are a few things this work won’t fix:
- A system that’s undersized for the building
- Faulty motors, drives or bearings
- Dirty ducts beyond the unit itself
If in doubt, phone us on 0345 646 2711, or email photos and we will say what we think.
What we work on in Frimley
- Dampers and louvres
- Supply and extract fans
- Internal panels
- Drain trays
- Filter sections
- Heating and cooling coils
Frimley questions
Do you clean school ventilation in Frimley in the holidays?
Yes, out-of-term visits are normal for schools. There are about 23 schools, colleges and universities on the FSA’s food hygiene register within about 1.5 miles of Frimley. You can ring 0345 646 2711 or email us with the dates the site is empty.
Can the work in Frimley be done at night or at weekends?
Yes. We work evenings, overnight and at weekends. That way a site in Frimley doesn’t have to lose a day’s trading. Just ring 0345 646 2711 or use the quote form with your opening times and we will plan around them.
What about areas you cannot get to?
We never leave them off the paperwork. The report says which parts couldn’t be reached and why, along with a quote to put access in.
Do you repair air handling units?
We clean the unit and flag faults rather than repair them, with the details in the report.
Are you fully insured?
Yes, we are fully insured. CHAS and SafeContractor accreditation sit alongside it for clients who vet their contractors.
Can you clean the ducts connected to the AHU?
Yes. Ventilation ductwork cleaning to TR19® Air is part of what we do. Cleaning the unit and ducts together often makes sense, and we can survey both on the same visit.
Which parts of an air handling unit do you clean?
Filters, coils, drain trays, the fan and the internal surfaces are all covered. Filters are cleaned or changed as agreed in the quote.
Do you offer maintenance contracts?
Yes. Scheduled maintenance plans are part of what we do, set at the interval the system needs. The report from each visit recommends the next date.
Managing agents and facilities teams in Frimley
We regularly work with managing agents. Tell us the site, the work and the access arrangements, and we will send a fixed quote.
Under the Regulatory Reform (Fire Safety) Order 2005, the responsible person must assess and reduce fire risk, which may be the employer, owner, landlord, FM or managing agent. With shared responsibility, good records help everyone.
AHU cleaning around Frimley
Going by the FSA’s register, there are about 23 schools, colleges and universities and about 23 caring premises (care homes, nurseries and hospitals) serving food within roughly a mile and a half of the centre of Frimley. Many buildings of this kind have supply and extract ductwork that gathers dust and needs inspecting. For Frimley, the closest hospital is Frimley Park Hospital, roughly 0.6 miles north-west. Healthcare buildings depend on clean supply and extract ventilation, and the same applies to surgeries, clinics and care homes. Frimley is about 30 miles from central London, well within the area we cover across London and the South East. We work evenings, overnight and at weekends, so the visit fits around the site.
Workplaces around Frimley station with an air handling unit need the filters, coils and drain tray looked at, as well as the ducts. For schools like Lakeside Primary School, the holidays are the usual time to inspect and clean ventilation.
Frimley is about 1 mile south of Camberley, in Surrey. Whatever kind of site you run in Frimley, AHU cleaning is something we can help with. Visits can be booked for evenings, overnight or weekends so trading is not interrupted. Across Surrey, we cover 395 places, and Frimley is one of them. You can also see our page for Guildford, about 8 miles away.
Work in GU16 and GU15 is surveyed, quoted and booked the same way as anywhere else. That includes premises on Church Road, Frimley High Street and Station Road and nearby roads. With the A325 and B311 close by, Frimley is easy for our technicians to reach at any hour. We also cover Frimley Green (1 mile south), Deepcut (1 mile east), Camberley (1 mile north), Watchmoor (2 miles north-west) and York Town (2 miles north-west). Within a short drive, we also cover Guildford (8 miles south-east), Woking (7 miles east), Farnham (8 miles south), Egham (11 miles north-east), Walton-on-Thames (15 miles east) and Staines-upon-Thames (13 miles north-east).
Landmarks near Frimley
Typical jobs here are in premises near Tomlinscote School, The White Hart Public House and Frimley Lodge Park. The closest station to Frimley is Frimley station, about 0.7 miles west of the centre. Nearby you will also find Frimley Park Hospital (0.6 miles north-west) and Surrey Heath Museum (1.9 miles north). For a walk, there’s Danger Hill and Wildmoor Heath.
Signs you need AHU cleaning in Frimley
Air handling units are usually tucked away on roofs, in plant rooms or above ceilings and are rarely seen by anyone but maintenance staff. It’s easy for a long time to go by without anyone opening the panels.
Look out for these warning signs:
- Condensate trays that will not empty
- Fan sections that haven’t been cleaned in years
- Plant that needs cleaning after a refit
- Debris and leaves in the fresh air intake
Frimley Park Hospital, about 0.6 miles north-west, is the nearest hospital to Frimley, and healthcare sites of every size need their supply air kept clean.
Questions to ask before you book
- Proof of insurance
- If they look at the system before pricing
- Whether inaccessible sections are listed on the report
- Whether a written report and pictures are included
Other services in Frimley
How the job changes from site to site
Internal casing and panels
Loose or damaged linings inside a unit can break up into the airstream. Anything like that is recorded with pictures.
Fans and fan sections
Every bit of air passes the fan, so a dirty fan sends dirt downstream. We clean the impeller, housing and surrounding section.
Looking after it afterwards
Good habits slow the build-up between visits. A few tips:
- Clear leaves and litter away from the intake
- Report musty smells from the vents right away
- Watch for drips or damp patches near the plant
- Check the drain tray is emptying during routine visits
The report shows each section of the unit before and after, along with anything we couldn’t reach. It also notes faults we spotted, such as damaged panels or a blocked drain.
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.