Hampshire · Air handling unit cleaning
AHU Cleaning in Keyhaven
AHU cleaning in Keyhaven from ventilation hygiene specialists trading since 2009. Evenings, overnight and weekends, plus a 24/7 emergency line.
- Dust-coated heating and cooling coils
- Units that have only ever had filter changes
- Rooms that smell stuffy when the system runs
AHU cleaning in Keyhaven, done properly
Where a building in Keyhaven has had little more than filter changes, the coils, fan and casing can be carrying far more dirt than anyone has seen. A full clean deals with all of it. We are often asked to deal with rooms that smell stuffy when the system runs and air handling units with blocked filters, on drain trays, heating and cooling coils and dampers and louvres.
For a building in or near Keyhaven, access is agreed in advance and the visit is planned around the journey.
Good records are part of the job. 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. File it in your maintenance log so it’s ready for an insurer, fire officer or EHO.
- Place
- Keyhaven (SO41)
- Wider area
- Hampshire
- Records
- Photo report after every visit
- Price
- A fixed quote up front
- When we work
- After hours by arrangement; emergencies any time
- Call
- 0345 646 2711
- Last updated
- 30 October 2026
Why act early in Keyhaven
When the unit is clean, less dirt reaches the ducts, so the ducts and grilles stay cleaner between cleans. It also means the next inspection has less to find. Our emergency line runs 24/7, but a planned visit to Keyhaven is calmer for everyone.
No two sites are the same, so we price each one individually. The size of the job, how we reach it, its condition and the working hours all play a part.
Why book with us
- Evenings, overnight and weekends, plus 24/7 emergency callout
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
- Every job surveyed first
- We’re fully insured
See how cleaning jobs are priced or how to check a contractor.
Also near Keyhaven
Other services in Keyhaven
Between visits
Think of this as the after-treatment advice, short and simple:
- Change filters on schedule and log each change
- Watch for drips or damp patches near the plant
- Don’t store bins or materials near the intake
- Report stiff or damaged access doors
Stick to the filter change schedule, because good filters protect everything downstream. Log every change so it’s easy to see when the next is due.
Have the unit inspected regularly, in line with the risk-based approach of TR19® Air instead of leaving it to guesswork.
Fixed quotes for AHU cleaning in Keyhaven
Before we fix a price, we need to know a few things. We look at:
- How big the system is
- Access, including roofs, risers and ceiling voids
- Site rules, permits and inductions
- What state the system is in
Combining work into one visit or one programme often makes better use of the time. Mention every system or site you need covered and we’ll price it together.
What to send for a quote
What to send for a quote:
- Wide pictures of the system and the area around it
- The site address and the type of premises
- When the site is open and when it’s quiet
- Close-ups of filters, grilles, hatches or access panels
Getting a quote doesn’t take long. Call or email with a few details and you’ll usually have a fixed price within one working day. Where a survey is needed, we arrange a time that suits the site.
Managing agents and facilities teams in Keyhaven
We regularly work with managing agents. Tell us the site, the work and the access arrangements, and we will send a fixed quote.
For anyone managing more than one site, we can schedule visits across all of them on one quote. Each site gets its own report and pictures, so records stay tidy.
What we do, step by step
A visit follows the same order every time: sheeting and protection first, isolate whatever needs isolating, carry out the AHU cleaning, clear away and hand over the paperwork. The visit itself takes one overnight shift for many single units, with bigger plant phased. If you can send pictures, we can arrive in Keyhaven knowing what to expect.
- 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.
- We clean or change the filters as agreed, then clean the coils, fan and internal panels.
- Drain trays are cleared and cleaned and the outlet checked.
- We close up the unit and send the certificate and before and after photos.
Preparing for the visit
- Make sure someone can let us in and lock up afterwards
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
- Move anything stored near the system
Getting a quote
Photos are enough for some jobs, while others need a look on site. Larger sites, and anything hidden behind walls, ceilings or floors, are normally surveyed first. Either way, you get a fixed price before any work starts.
Related advice
FAQs for Keyhaven
Do you work at weekends in Keyhaven?
Yes, nights and weekends are routine for us. Your customers, staff or residents in Keyhaven needn’t be disturbed. Just give us a ring on 0345 646 2711 or email us with your opening times and we’ll plan around them.
Will you come out to Keyhaven?
Yes, smaller places are covered as well as towns. The journey is planned ahead, so a few details about the route help.
Is a quote from photos possible?
Yes, for many jobs. Send a few wide photos plus close-ups of panels, filters or grilles, and we usually come back within one working day. If photos are not enough, we will survey first.
What do you clean inside the unit?
Every section that collects dirt: filters, coils, tray, fan and panels. We confirm the scope after looking at the unit.
What is TR19?
TR19® is the BESA specification for keeping ventilation systems clean. TR19® Grease, a standalone specification since 2019, covers grease in kitchen extract systems, and TR19® Air covers general supply and extract systems.
Does the AHU have to be shut down for cleaning?
Yes. Cleaning needs the unit off and isolated, and we time the work to suit the site.
Which accreditations do you hold?
CHAS, SafeContractor, ISO 9001 and BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease. We have been trading since 2009 and we’re fully insured.
Are you insured?
Yes. Full insurance covers our work and have been trading since 2009.
AHU cleaning in Keyhaven: local notes
There are about 4 care, childcare and hospital premises on the FSA’s food hygiene register within about 1.5 miles of central Keyhaven. Buildings like these often rely on mechanical ventilation, which TR19® Air covers. Lymington New Forest Hospital is the nearest hospital, about 3.4 miles north of Keyhaven. Clean air matters most where people are unwell, and that’s as true in a care home as in a hospital.
Classrooms and halls at schools such as Milford-on-Sea Church of England Primary School are easiest to work in when pupils are away. Hospitals such as Lymington New Forest Hospital (about 3.4 miles north) show how much a building can rely on clean ventilation, and smaller healthcare sites near Keyhaven are no different.
Keyhaven is about 3 miles south of Lymington, in Hampshire. If you need AHU cleaning in Keyhaven, please call 0345 646 2711 or drop us a line for a fixed quote. We work across South East England and London, Keyhaven included. We cover 683 places across Hampshire, from busy centres to quieter spots. You can also see our page for Southampton, about 16 miles away.
Work in SO41 follows the same survey, fixed quote and written report as everywhere else we cover. You’ll find streets such as New Road, Keyhaven Road and Saltgrass Lane, and we cover them all for AHU cleaning. Nearby, we also carry out AHU cleaning in Milford on Sea (1 mile west), Lymore (1 mile north-west), Lower Pennington (1 mile north-east), Everton (2 miles north-west) and Pennington (2 miles north). Further out, we also cover Totton (14 miles north), Hythe (12 miles north-east), New Milton (4 miles north-west), Ringwood (13 miles north-west), Warsash (15 miles north-east) and Barton on Sea (4 miles west).
What’s near Keyhaven
Typical jobs here are in premises near The Gun Public House and Priestlands School and the streets around them. The closest station to Keyhaven is Lymington Town station, roughly 3 miles north-east of the centre. Nearby you’ll also find St Barbe Museum and Art Gallery (2.8 miles north-east) and Yarmouth Castle (3.3 miles east). Green spaces nearby include Milford on Sea LNR and Tennyson Down.
In-house cleaning or a specialist?
For ventilation and air handling systems, in-house care is mostly about checks: clear grilles, a log of filter changes and reporting anything odd. The inside of ducts and units needs a specialist.
Logging matters as much as cleaning. A dated log of in-house cleaning and checks shows an inspector that the system is looked after between visits, next to our reports.
How the job changes from site to site
Internal casing and panels
Dust settles on every internal surface of the unit. We clean each section from intake to discharge.
Drain trays
Condensate from the coil drips into a tray beneath it. Standing water and slime are removed and the outlet is checked.