Hampshire · Air handling unit cleaning
Air handling unit cleaning in Hook, Hampshire
AHU cleaning in Hook from ventilation hygiene specialists trading since 2009. Evenings, overnight and weekends, plus a 24/7 emergency line.
- Dust built up on fan impellers
- Air handling units with blocked filters
- Stale or musty smells from the ventilation
AHU cleaning in Hook, done properly
Heating and cooling coils trap dust that gets past the filters. A coated coil restricts airflow and makes the unit work harder. Coils are cleaned carefully, with methods chosen so the fins aren’t flattened. Common call-outs are for units that have only ever had filter changes and air handling units with blocked filters, across dampers and louvres, heating and cooling coils and supply and extract fans.
For a building in or near Hook, access is agreed in advance and the visit is planned around the journey, and the ventilation is inspected, cleaned and recorded the same as anywhere.
Every visit ends with a written report and pictures, so there’s a dated record of the work. Where the work is a TR19® Grease clean, the certificate is issued through the BESCA Vent Hygiene Elite portal.
- Place
- Hook (SO31, PO14)
- Region
- Hampshire
- Records
- Photo report after each visit
- Price
- A fixed price before we start
- Hours
- Nights, weekends or holidays to suit you
- Phone
- 0345 646 2711
- Page updated
- 30 October 2026
Keeping the system healthy
After the visit, a few habits help the work last:
- Clear leaves and litter away from the intake
- Store the TR19 paperwork where auditors can find it
- Report stiff or damaged access doors
- Look at the condensate drain whenever the unit is serviced
Restart the unit with your site team or maintenance contractor once we have finished. Check the drain tray is emptying over the first few days to confirm water is draining away.
Keep the unit’s doors and panels in working order. Sections that are awkward to open are the ones that get skipped.
What the work involves, part by part
Filters
Every AHU relies on its filters to catch dust before it reaches the coils. We check them, and clean or change them as agreed in the quote, and clean the filter housing.
Rooftop and plant room units
Rooftop units take the weather, and intakes can collect leaves and debris. The intake section gets particular attention.
How it works
Before we leave, we walk the area with whoever is on site. We point out anything that couldn’t be reached or needs a follow-up, and it goes on the report too. All told, the work takes from a few hours for a compact unit to a day or more for a large one. We agree a date with you, plan the drive to Hook and turn up when the site is quiet.
- The survey covers the unit, its access and how it can be shut down.
- We sheet the area and the unit is isolated.
- Each section is cleaned of dust, debris and slime.
- We clean the coils and clear the tray and drain.
- We close every panel, hand the unit back and send the report and certificate.
Before we arrive
- Find the previous report, if there is one
- Plan for cooking equipment or plant to be off before we arrive
- Let us know when the site is closed or quiet
Get a fixed quote
If you need AHU cleaning in Hook, phone us on 0345 646 2711, or send details by email. Tell us what kind of premises it is and when it’s open, and send photos or your last report if you can. We normally send a fixed quote within one working day.
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Fixed quotes for AHU cleaning in Hook
Before we fix a price, we need to know a few things. We check:
- The condition we find in the survey
- Travel, parking and unloading
- One-off work versus a regular cycle
- Working hours and out-of-hours timing
What you pay depends on the size of the system, the condition it’s in and access to every part of it. You get a fixed price before any work starts, so you know where you stand.
Helping us quote
To speed up the quote, please include:
- Close-ups of filters, grilles, hatches or access panels
- Any previous report or certificate
- The times we could work without disrupting the site
- Any symptoms, from odd noises to smells or leaks
Quoting starts with a diagnosis, either from photos and details you send or from a site visit. Then we send a fixed price so you know the cost before any work starts.
Your questions about AHU cleaning in Hook
Can you come to Hook after we close?
Yes. We work evenings, overnight and at weekends. The work in Hook can fit around your hours. Let us know the hours you’re closed and we will book within them.
Can you get to a site in Hook?
Yes. Hook is within the area we cover across London and the South East. Photos of the system and directions to the site help us plan the visit.
Is there a survey before the work?
Yes. We always survey first, from your pictures and details, or with a visit where necessary. A fixed quote follows.
What happens to the waste?
Waste is contained during the work and removed when we leave, from grease and debris to used cleaning water. We do not leave it behind.
Do you offer emergency callouts?
Yes, day and night, every day of the year. Our office is open from 8am to 6pm on weekdays, and the emergency line covers the rest.
How do you keep the site clean during the work?
We cover floors and nearby surfaces with sheeting before work begins, and waste is contained as we go. Before we leave, we tidy up and clean down.
Do you give a certificate after the clean?
Yes. Every clean comes with a TR19® certificate and a photo report. Keep them in the maintenance log.
How long does it take to clean an air handling unit?
It takes one overnight shift for many single units, with bigger plant phased. The unit’s size and condition make the biggest difference, and the quote will give you a clear idea.
Managing agents and facilities teams in Hook
Whether it’s one building or many, the standard is the same: a survey first, a fixed quote, the work timed around the site and a report with photos.
Facilities teams in offices, schools and healthcare sites book us too across Hampshire. Larger estates can be phased building by building to keep disruption down.
What your team can do, and what needs us
Day-to-day cleaning is something your team can do: wiping down canopy surfaces, cleaning filters and keeping a simple log. What they can’t safely do is clean inside the ductwork, the fan or the risers, and that is where we come in.
Away from the kitchen, the in-house job is mainly checking: keeping grilles clear, noting unusual noise or smells and logging filter changes. The inside of ducts and units needs a specialist.
AHU cleaning in Hook: local notes
The FSA’s food hygiene register lists about 4 schools, colleges and universities and about 10 care, childcare and hospital premises with registered kitchens or food service within 1.5 miles or so of the middle of Hook. Buildings like these often rely on mechanical ventilation, which TR19® Air covers. Hook’s nearest hospital, Coldeast, is about 1.7 miles north. If you run a surgery, clinic or care home, your ventilation deserves the same care as a hospital’s, on a smaller scale.
If you manage a school such as Locks Heath Infant School, ventilation cleaning is best booked for the holidays.
Hook is about 1 mile south-east of Warsash, in Hampshire. We carry out AHU cleaning for businesses, landlords and public buildings in Hook and the rest of Hampshire. We cover 683 places across Hampshire, large and small. For sites nearby, see our Southampton page, about 7 miles away.
Here we cover the SO31 and PO14 postcode area for AHU cleaning. Other places close to Hook include Abshot (1 mile east), Hook Park Estate (1 mile south-west), Titchfield Common (1 mile north-east), Warsash (1 mile north-west) and Locks Heath (1 mile north). We also work in nearby towns such as Winchester (15 miles north), Gosport (6 miles south-east), Havant (13 miles east), Eastleigh (9 miles north), Fareham (4 miles east) and Horndean (12 miles east).
What’s near Hook
Typical jobs here are in premises near Hamble Common, Jolly Farmer Public House and Brookfield Community School and Language College and the streets around them. Hook’s nearest station is Swanwick station, about 2.2 miles north of the centre. Nearby you’ll also find St Andrew's Castle (1.8 miles west) and Carron Row Farm Museum (2.2 miles north-east). Green spaces nearby include Holly Hill Woodland Park.
Nearby places to Hook
More services for Hook
Signs you need AHU cleaning in Hook
Planned maintenance often covers belts, motors and filters but not cleaning. So a unit can be well maintained and still dirty.
These are the problems we see most often:
- Drain trays holding standing water
- Dust-coated heating and cooling coils
- Stale or musty smells from the ventilation
- Leaves and litter drawn into the unit
Coldeast, about 1.7 miles north, is the nearest hospital to Hook, and healthcare sites of every size need their supply air kept clean.
What to look for in a quote
- Whether the quote shows VAT
- Their accreditations, such as BESCA Vent Hygiene Elite, CHAS or SafeContractor
- Proof of insurance
- What paperwork you get at the end