Surrey · Air handling unit cleaning
AHU Cleaning in Redlands
One call covers cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces in Redlands, from survey to sign-off. CHAS and SafeContractor accredited, ISO 9001 and fully insured.
- Blocked condensate drains and slimy trays
- Intake sections clogged with outdoor debris
- Dirty filters cutting the airflow
About our AHU cleaning in Redlands
A cooling coil drips condensate into a tray that should drain away. When the drain blocks, water sits there and the tray turns slimy, right in the path of the air going into the building. Cleaning and clearing it is a key part of the job. The work covers supply and extract fans, drain trays and internal panels, and common reasons people get in touch are dirty coils holding back the airflow and fan sections that haven’t been cleaned in years.
In rural areas, ventilation units are often in roof voids or outbuildings, where filters and drain trays get forgotten.
Insurers, fire officers and environmental health officers all look at records. So every job comes with a written report and pictures, and grease extract cleans come with a TR19® certificate issued through the BESCA Vent Hygiene Elite portal.
- Where
- Redlands (GU10)
- Region
- Surrey
- Paperwork
- Report and pictures after the visit
- Quote
- A fixed quote up front
- Working hours
- After hours by arrangement; emergencies any time
- Call
- 0345 646 2711
- Updated
- 30 October 2026
What happens on the day
We turn up at the time agreed with you, which is often after service, overnight or at a weekend. Anything that needs to be off for the work is switched off and left to cool first, and the area around the work is covered and protected. The work itself takes a single shift for a typical unit, longer for large or heavily soiled ones. Visits to a village like Redlands are booked in advance, at a time that suits whoever runs the site.
- First the unit is surveyed, from pictures or a visit, and the scope agreed.
- The unit is shut down with your site team and the area protected.
- We clean or change the filters as agreed, then clean the coils, fan and internal panels.
- Standing water and slime come out of the tray and the drain is checked.
- A TR19® certificate and photo report follow the clean.
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
- Mention any parking or loading restrictions
Ask for a quote
Every quote begins with a look at the system, either from photos and details you send or from a site visit. Then we send a fixed price so you know the cost before we start.
Read more
Places near Redlands
What else we do in Redlands
How we price AHU cleaning
A fixed price needs a few facts first. We look at:
- Parking and loading at the site
- Working hours and out-of-hours timing
- How many systems or sites are involved
- The condition of the system
What you pay 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 we start, so there are no surprises.
What to send for a quote
What to send for a quote:
- Any symptoms, from odd noises to smells or leaks
- The postcode and the type of business
- Wide photos of the system and the area around it
- Close-ups of filters, grilles, hatches or access panels
We do not publish a price list, because every site is different. Instead, we look at your site first, from pictures or a survey, and then send you a fixed quote. To get going, ring 0345 646 2711 or send us an email.
Managing agents and facilities teams in Redlands
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. Where responsibility is shared, records matter even more.
Managing agents often deal with us directly. Send the address, what’s needed and how access works, and we’ll send a fixed quote.
When something else is needed
To be straight with you, there are a few things this work won’t fix:
- Faulty motors, drives or bearings
- Damaged coils beyond cleaning
- Dirty ducts beyond the unit itself
Not sure which it is? You can call 0345 646 2711 or email us and we’ll tell you honestly.
What the work covers
- Heating and cooling coils
- Dampers and louvres
- Drain trays
- Filter sections
- Supply and extract fans
- Internal panels
Looking after it afterwards
Results last longer with the right care. We suggest:
- Report stiff or damaged access doors
- Plan the next inspection before the last report gets filed away
- Change filters on schedule and log each change
- Report musty smells from the vents right away
When we’ve closed the unit up, it can be restarted with your site team. Keep an eye on the condensate drain over the next few days to make sure it stays clear.
Regular filter changes are the best protection an AHU has. Overloaded filters let more dirt through to the coils and fan.
Redlands questions
Will you come out to Redlands?
Yes, Redlands is part of our area, however small the site. A survey first, from pictures or a visit, means we arrive with the right kit.
Can you work in Redlands outside opening hours?
Yes, nights and weekends are routine for us. The work in Redlands can fit around your hours. When you ring 0345 646 2711, or send details by email, mention when the site is quiet.
Do you need to switch the unit off?
Yes, while the clean is under way. We can work evenings, overnight or at weekends to keep disruption down.
How do you protect the area?
Floors and surfaces near the work are sheeted before any work starts, and anything we remove is contained. At the end, the area is cleaned down.
Can you look after several sites?
Yes. Tell us the addresses and what each needs and we’ll quote them together.
What do you need from me for a quote?
A short description and a few photos plus the address and your hours. We’ll ask for anything else we need.
What happens if you cannot reach some of it?
We never leave them off the paperwork. You will know exactly which parts weren’t reached and why, along with a quote to put access in.
When should our AHU next be cleaned?
There’s no single answer; it comes down to the building and the unit. Regular inspection shows when it’s due, and the report recommends a next date.
Common problems we fix in Redlands
No filter stops everything. The fine dust that passes the filters lands on the coils, the fan and the internal panels, building up layer by layer.
Most sites get in touch when they notice one of these:
- Fan sections that haven’t been cleaned in years
- Debris and leaves in the fresh air intake
- Rooms that smell stuffy when the system runs
- Dust-coated heating and cooling coils
If you manage a school such as Crondall Primary School, ventilation cleaning is best booked for the holidays.
Before booking anyone
- Which accreditations they hold, and whether you can check them
- How areas they cannot reach will be recorded
- Whether a written report and photos are included
- Whether they recommend a next date
Leave it or put it right?
Cleaning a unit while it only has light dust is quick. Leave it for years and dirt bakes onto coils and casings, particularly where damp has made it stick. It’s simpler to plan the work at Redlands now than to arrange it in a hurry later.
You won’t find a price list here, because each job is priced on what it involves. Call for a fixed quote, and we’ll explain what it covers.
Why us?
- BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease
- A single point of contact for sites across the South East and London
- Accredited under CHAS and SafeContractor, with ISO 9001
- Every job surveyed first
Take a look at what affects the cost or our accreditations.
Redlands buildings and their air
Food Standards Agency data includes about 3 schools, colleges and universities and about 5 caring premises (care homes, nurseries and hospitals) within roughly a mile and a half of the centre of Redlands. Buildings like these often rely on mechanical ventilation, which TR19® Air covers. About 3.6 miles north of Redlands is Fleet Community Hospital, the nearest hospital. If you run a surgery, clinic or care home, your ventilation deserves the same care as a hospital’s, on a smaller scale. At about 37 miles from central London, Redlands sits well inside the area we cover. The visit is fixed around your opening hours, not ours.
Healthcare ventilation, from large hospitals like Fleet Community Hospital (about 3.6 miles north) to small clinics, depends on clean filters, coils and ducts.
Redlands is about 3 miles south of Fleet, in Surrey. Wherever you are in the GU10 postcode area, we can take on AHU cleaning. We cover 395 places across Surrey, from busy centres to quieter spots. Guildford is in our area too, around 12 miles away.
Every address in GU10 is covered for AHU cleaning, from busy streets to back roads. We also cover Warren Corner (1 mile east), Crondall (1 mile south-west), Dora's Green (1 mile south-east), Ewshot (1 mile east) and Bowling Alley (1 mile north-west). Larger places within reach include Guildford (12 miles east), Woking (13 miles north-east), Camberley (9 miles north-east), Farnham (3 miles south-east), Frimley (7 miles north-east) and Haslemere (12 miles south-east).
What’s near Redlands
Locally, jobs take us to businesses close to The Plume Of Feathers Public House, St Nicholas' School and Court Moor School, among other places. Redlands’s nearest station is Farnham station, about 2.9 miles south-east of the centre. Well-known places in the area include Hart Shopping Centre (3.1 miles north) and Museum of Farnham (2.4 miles south-east). The countryside around Redlands includes Farnham Park and Beacon Hill.