Surrey · Air handling unit cleaning
AHU Cleaning in Normandy
For air handling unit cleaning in Normandy, one call is all it takes: survey, fixed quote, work and sign-off. Fully insured, with CHAS, SafeContractor and ISO 9001.
- Stale or musty smells from the ventilation
- Leaves and litter drawn into the unit
- Dirty fans and fan housings
About our AHU cleaning in Normandy
No two plant rooms are the same, from a small ceiling-mounted unit to a large rooftop plant. We look at the unit first, from pictures or a site visit, and send you a fixed quote, so you know where you stand. Typical jobs include dirty filters cutting the airflow and units needing a clean before a new tenant or handover, on heating and cooling coils, supply and extract fans and internal panels.
In rural areas, ventilation units are often in roof voids or outbuildings, where filters and drain trays get forgotten.
The paperwork matters as much as the work. You get a written report with pictures after every visit, listing what was done, anything we couldn’t reach and when the next visit is due. Keep it with your fire safety records so it’s to hand when an insurer or inspector asks.
- Place
- Normandy (GU3)
- Region
- Surrey
- Records
- Report and photos after the visit
- Quotes
- A fixed quote up front
- Working hours
- When your site is closed, plus a 24/7 line
- Telephone
- 0345 646 2711
- Last updated
- 30 October 2026
What affects the cost of AHU cleaning
The diagnosis comes before the price. The main factors are:
- The number of sites or systems
- Any permits to work or inductions
- A single visit or a regular plan
- The condition of the system
The cost depends on the size of the system, the condition it’s in and how easy it is to reach. We give you a fixed price before any work starts, so you know where you stand.
What we need to know
There’s no need for technical detail. It helps if you can send:
- How we’d reach plant on a roof or in a plant room
- The times we could work without disrupting the site
- Detail shots of panels, filters and grilles
- The site address and the type of premises
We don’t publish a price list, because no two systems are the same. Instead, we look at your site first, from photos or a survey, and then give you a fixed quote. To get going, call 0345 646 2711 or send us an email.
Your questions about AHU cleaning in Normandy
Is Normandy in your area for AHU cleaning?
Yes, Normandy is within the area we cover across London and the South East. You can ring 0345 646 2711, or send details by email and tell us what needs doing.
Can the work in Normandy be done at night or at weekends?
Yes, out-of-hours work is a big part of what we do. The work in Normandy can fit around your hours. Tell us your opening hours when you ask for a quote.
Which accreditations do you hold?
Duct Doctor is a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we carry full insurance.
What information do you need?
Just the basics: where it is, what kind of site, when it’s open and the access. Photos and any previous paperwork make it quicker. Then phone us on 0345 646 2711 or drop us a line.
Are you fully insured?
Yes. Full insurance covers our work, and we have been trading since 2009.
How do you keep the site clean during the work?
We start with protection: sheeting over floors, worktops and anything close to the work. The area is left tidy, with our waste taken away.
Which parts of an air handling unit do you clean?
The main parts are the filters, coils, drain tray, fan and inside of the casing. We confirm the scope after looking at the unit.
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.
Other services in Normandy
Aftercare tips
A little care between visits keeps the system in better shape. Our advice:
- Plan the next inspection before the last report gets filed away
- Stick to the filter change plan
- Look at the condensate drain whenever the unit is serviced
- Keep inspection doors on the unit in good order
Once the clean is done, we send a TR19® certificate and a report with before and after pictures. They belong in the plant or maintenance log.
Regular inspection under TR19® Air shows when cleaning is due instead of leaving it to guesswork.
In-house cleaning or a specialist?
Staff cleaning does not replace a specialist visit; it supports it. Regular in-house cleaning slows the build-up, but the parts you can’t see still need a specialist at the right interval.
In-house cleaning and specialist cleaning do different jobs. A daily filter wipe and a weekly filter wash keep grease down at the front of the system, but they do not reach the grease that builds up further in. Reaching it takes a specialist with the right equipment.
Part by part
Heating and cooling coils
Because cooling coils run wet, the dirt on them tends to cling. The coil and its drain tray are cleaned as one job.
Fans and fan sections
Build-up on fan blades can upset the balance and add wear. Cleaning keeps it running as intended.
AHU cleaning around Normandy
About 30 miles out from central London, Normandy is part of the South East area we work across. We work evenings, overnight and at weekends, so the visit fits around the site. Guildford Hospital is the nearest hospital, about 2.6 miles east of Normandy. Clean air matters most where people are unwell, and that’s as true in a care home as in a hospital.
Wherever a school like Wyke Primary School has ducted ventilation, a half-term visit keeps the work out of lesson time. Healthcare ventilation, from large hospitals like Guildford Hospital (about 2.6 miles east) to small clinics, depends on clean filters, coils and ducts.
Normandy is about 4 miles east of Aldershot, in Surrey. Normandy gets the same approach as every site we work on: diagnosis first, a fixed price, out-of-hours working where needed and a written report with photos. Our Surrey coverage runs to 395 places, and Normandy is one of them.
We cover every part of the GU3 postcode area for AHU cleaning and the streets around it. We cover sites on Manor Farm Close, Guildford Road and Milton Close and the roads around them. If your site is just outside Normandy, we cover Willey Green (1 mile east), Flexford (1 mile south), Christmas Pie (1 mile south), Wyke (1 mile west) and Wanborough (2 miles south). Further out, we also cover Guildford (4 miles east), Woking (6 miles north-east), Camberley (6 miles north-west), Farnham (6 miles south-west), Egham (13 miles north-east) and Walton-on-Thames (14 miles north-east).
Local landmarks in Normandy
Around Normandy, our work takes us to kitchens and buildings near Duke of Normandy pub and the streets around them. For rail, the closest station is Wanborough station, roughly 0.7 miles south. Nearby you’ll also find Ash Museum (2.1 miles west) and Guildford Hospital (2.6 miles east). Green spaces nearby include Hog's Back and Ash Ranges.
Signs you need AHU cleaning in Normandy
Wherever there’s a cooling coil, there’s condensate. A blocked outlet or a badly sloped tray leaves standing water, and that is where slime and odours start.
What we are most often called out for:
- Leaves and litter drawn into the unit
- Dirty filters cutting the airflow
- Stale or musty smells from the ventilation
- Dust built up on fan impellers
If you manage offices or shops near Wanborough station, their ventilation can be inspected and cleaned out of hours.
Before you book anyone
- Proof of accreditation you can verify
- Proof of insurance
- Whether the price is fixed
- Whether a survey comes first
For landlords and multi-site operators
We also work for facilities teams across offices, schools and healthcare across Surrey. Work can be phased by floor, building or site to keep disruption down.
Keeping records across a portfolio is half the battle. Each visit produces a dated report with pictures, ready to show insurers, fire officers or EHOs.
What we do, step by step
There’s very little for your team to do on the day. Someone lets us in at the agreed time and shows us where everything is, and the rest is down to us. Before we leave, the area is tidied and the paperwork follows. A few pictures of the system help us make the most of a visit to a place like Normandy.
- First we agree when the unit can be switched off, including evenings or weekends.
- We take before pictures of each section of the unit.
- Filters, coils and internal surfaces are cleaned from intake to discharge.
- The fan and drain tray are cleaned and the drain checked.
- After pictures are taken and the certificate issued.
How to prepare
- Let us know how we reach the system, including roofs, risers and plant rooms
- Have your last certificate or report to hand
- Allow time for equipment near the work to be turned off and cool down
Getting a quote
For AHU cleaning in Normandy, 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, plus photos or the previous report if they’re to hand. A fixed quote normally follows within one working day.