Surrey · Air handling unit cleaning
Air handling unit cleaning in Westfield, Surrey
Need AHU cleaning in Westfield? We survey first, give you a fixed quote and work around your opening hours, finishing with a written report and pictures.
- Blocked condensate drains and slimy trays
- Dirty coils holding back the airflow
- Air handling units with blocked filters
Fixed quotes for AHU cleaning in Westfield
The diagnosis comes before the price. We look at:
- The number of sites or systems
- Site requirements such as sign-in and permits
- The times the site is available
- The condition of the system
We do not list prices on the website, because each job is priced on what it involves. Call for a fixed quote, and we will explain what it covers.
What to send for a quote
We can often survey from photos. Try to include:
- Where the plant sits or the system leaves the building, such as a roof or outside wall
- The postcode and the type of business
- Your last certificate, test record or report
- The times we could work without disrupting the site
Here’s what helps us quote: where the site is, what it is and its opening hours, a few photos and any previous report or certificate. Then call us on 0345 646 2711 or send us an email.
AHU cleaning in Westfield, done properly
No two plant rooms are the same, whether it’s a compact unit in a ceiling void or a big unit on the roof. We look at the unit first, from photos or a site visit, and give you a fixed quote before any cleaning starts. Common call-outs are for odours coming through the supply air and plant that has been serviced but not cleaned, on internal panels, drain trays and dampers and louvres.
In a smaller place like Westfield, buildings with ducted ventilation are more likely to be a school, a surgery, a care home or a small business unit than an office block. Even a small system collects dust in its ducts and filters.
The sign-off is always in writing: a written report, dated and illustrated with photos, 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.

- Location
- Westfield (GU22)
- Wider area
- Surrey
- Reporting
- Photo report after every visit
- Price
- A fixed price before work begins
- Hours
- Out of hours as standard, 24/7 emergency line
- Call
- 0345 646 2711
- Page updated
- 30 October 2026
Different parts, different methods
Drain trays
Drain trays can rust and leak over time. We record their condition with pictures so repairs can be planned.
Heating and cooling coils
Heating and cooling coils have tightly packed fins that trap fine dust. We clean them with care so the fins aren’t damaged.
Westfield: your questions answered
Can you clean school ventilation in Westfield during the holidays?
Yes, out-of-term visits are normal for schools. Food Standards Agency records list about 11 schools, colleges and universities with registered kitchens within about a mile and a half of Westfield. Just call us on 0345 646 2711 or use the quote form with your term dates and we’ll plan around them.
Can you come to Westfield after we close?
Yes, nights and weekends are routine for us. That way a site in Westfield does not have to lose a day’s trading. Let us know the hours you’re closed and we will book within them.
How often should an air handling unit be cleaned?
That is set by inspection, in line with TR19® Air. A hard-working unit, or one serving a hospital or care home, may need cleaning more often.
Are you fully insured?
Yes. We carry full insurance and have been trading since 2009.
Do you cover Westfield?
Yes. Our technicians work in Westfield, within the South East and London area we cover.
Do you offer emergency callouts?
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.
How long does an AHU clean take?
Cleaning takes half a day to a full day per unit, with large plant planned over several shifts. Large plant can be split over several shifts, so phone us on 0345 646 2711, or send details by email to talk it through.
What do you do with what you remove?
It’s contained and taken away. Grease, debris and waste water are collected as the work goes on, so it doesn’t spread.
How the visit works
A visit follows the same order every time: protect the area, isolate whatever needs isolating, carry out the AHU cleaning, tidy up and hand over the paperwork. The visit itself takes from a few hours for a compact unit to a day or more for a large one. In a smaller place like Westfield, parking is rarely the issue, but tell us about gates, roof access and opening hours.
- 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.
- Standing water and slime come out of the tray and the drain is checked.
- A TR19® certificate and photo report follow the clean.
Preparing for the visit
- Clear the space around the work
- Let us know how we reach the system, including roofs, risers and plant rooms
- Tell us where we can park and unload
Getting a quote
Some systems can be priced from pictures; others need a survey. Larger sites, and anything hidden behind walls, ceilings or floors, are normally surveyed first. Either way, the quote is fixed before any work is booked.
Related advice
Nearby places to Westfield
What else we do in Westfield
Managing agents and facilities teams in Westfield
Landlords, managing agents and facilities managers book us, not only the businesses that use the systems. Shared systems, like a riser serving several units, need a clear agreement on who books the work, and we can quote for the whole system.
Whether it’s one building or many, you get the same standard: a survey first, a fixed quote, the work timed around the site and a report with photos.
Why act early in Westfield
A light clean now is simpler than a heavy one later. Years of build-up make the job longer and harder, particularly where damp has made it stick. It’s better to plan the work at a site near Westfield than wait for a failure.
No two sites are the same, so we price each one individually. Size, access, the condition of the system and when we can work all make a difference.
Why Westfield businesses choose us
- Work around your opening hours, with 24/7 emergency cover
- A BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- CHAS, SafeContractor and ISO 9001
- One number for every site across the South East and London
See what affects the cost and our accreditations.
AHU cleaning in Westfield: local notes
Food Standards Agency data includes about 11 schools, colleges and universities, about 10 hospitals, care homes and childcare premises and about 3 hotels, B&Bs and guest houses in and around Westfield, up to about a mile and a half out. Classrooms, bedrooms and care spaces are often served by ducted air, and that ductwork collects dust over time. Woking Community Hospital is the nearest hospital, about 1 mile north of Westfield. Hospitals show how much a building can rely on its ventilation, and smaller healthcare sites rely on theirs too. We cover Westfield, about 24 miles from central London, as part of our work across London and the South East. The visit is fixed around your opening hours, not ours.
If you run a surgery, dental practice or care home near Westfield, clean ventilation matters as much to you as to a hospital like Woking Community Hospital (about 1 mile north).
Westfield is about 1 mile south-east of Woking, in Surrey. Whether your site is in the middle of Westfield or further out, AHU cleaning is available to all kinds of commercial premises, from small sites to large estates. Westfield is one of 395 towns, villages and districts in Surrey where we work for commercial clients.
Our technicians cover all of the GU22 postcode area for AHU cleaning and the streets around it. Whether your site is on Ash Road, Moor Lane and Loop Road or a nearby road, we can help. Westfield sits on or near the A247, so getting to you is simple for evening and night visits. Nearby, we also carry out AHU cleaning in Old Woking (1 mile east), Woking (1 mile north-west), Goldsworth Park (1 mile north-west), St John's (2 miles north-west) and Horsell (2 miles north). We also work in nearby towns such as Guildford (4 miles south), Camberley (8 miles west), Epsom (13 miles east), Farnham (12 miles south-west), Ewell (14 miles east) and Egham (9 miles north).
Around Westfield
Locally, jobs take us to businesses close to Hoe Valley School, Hoe Valley School and Hoe Valley Linear Park. The nearest railway station is Woking station, roughly 1.2 miles north of the centre. Nearby you will also find Woking Community Hospital (1 mile north) and Guildford Castle (4.7 miles south). The countryside around Westfield includes Pewley Hill and Boldermere Lake.
When to call us in Westfield
Wherever there’s a cooling coil, there’s condensate. If the drain tray outlet blocks or the tray does not fall properly, water stands in it, and that is where slime and odours start.
Look out for any of the following:
- Filters that are clogged or overdue
- Rooms that smell stuffy when the system runs
- Plant that needs cleaning after a refit
- Blocked condensate drains and slimy trays
Wherever a school like Westfield Primary School has ducted ventilation, a half-term visit keeps the work out of lesson time.
What your quote should include
- Whether the quote shows VAT
- What hours they’ll be on site
- If they look at the system before pricing
- Their accreditations, such as BESCA Vent Hygiene Elite, CHAS or SafeContractor
In-house cleaning or a specialist?
Some jobs should never be done in-house: entering ducts, working on fans, testing dampers and taking grease readings call for the right kit, training and safe access. That’s our job.
For ventilation and air handling systems, in-house care is mostly about checks: keeping grilles clear, noting unusual noise or smells and logging filter changes. The inside of ducts and units needs a specialist.