Hampshire · Air handling unit cleaning
Air handling unit cleaning in Haslar, Hampshire
AHU cleaning for Haslar, with a survey first and a report with photos at the end. Ask us for a fixed quote.
- Leaves and litter drawn into the unit
- Fan sections that haven’t been cleaned in years
- Drain trays holding standing water
Haslar questions
Can you come to Haslar after we close?
Yes, evening, overnight and weekend work is normal for us. The site is handed back ready to open. Let us know the hours you are closed and we will book within them.
Is Haslar within the area you cover?
Yes, Haslar is part of our area, however small the site. Just mention lanes, gates or anything else about the site when you book.
What accreditations do you have?
Duct Doctor is a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 are in place too, and we carry full insurance.
What do you clean inside the unit?
Filters, coils, drain trays, the fan and the internal surfaces are all covered. What happens to the filters is agreed when we quote.
What does TR19 mean?
It’s the industry benchmark for cleaning ventilation and kitchen extract systems, written by BESA. It sets out inspection, cleaning and record keeping, and it takes a risk-based approach.
Can we book visits on a schedule?
Yes. Plans on a 3, 6 or 12-monthly cycle are available, depending on what the system needs.
Can you come out in an emergency?
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 often do AHUs need cleaning?
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.
How we handle AHU cleaning in Haslar
Drain trays under cooling coils are meant to empty. When the drain blocks, water sits there and the tray turns slimy, right in the path of the air going into the building. Clearing and cleaning the tray is central to every AHU clean. If you’re dealing with rooms that smell stuffy when the system runs and units needing a clean before a new tenant or handover, we can help.
Somewhere as small as Haslar, ducted ventilation is usually limited to a school, a care home, a surgery or a converted business building, wherever there is one, but where it’s fitted, it needs the same inspection and cleaning as anywhere.
We are CHAS and SafeContractor accredited, we hold ISO 9001 and we’re fully insured. We are also a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, and we have been trading since 2009.
- Where
- Haslar (PO12)
- Region
- Hampshire
- Paperwork
- Photo report after every visit
- Quote
- A fixed price before any work starts
- When we work
- When your site is closed, plus a 24/7 line
- Call
- 0345 646 2711
- Checked
- 30 October 2026
Multi-site and managed buildings
For anyone managing more than one site, we can plan visits across the whole estate and price them together. Each site gets its own report and pictures, so each one has its own record.
When the building owner and the occupier are different, it’s worth checking the lease for who maintains the systems. We are happy to deal with either side, and the report can go to both.
Staff cleaning versus specialist work
Your own staff can handle the daily basics: 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, which is where we come in.
Good housekeeping makes our visits easier, not unnecessary. Clean filters and tidy surfaces slow the build-up, but hidden parts of the system still need specialist attention.
What affects the cost of AHU cleaning
Your quote is based on your site. We take into account:
- How many systems or sites are involved
- Travel, parking and unloading
- The condition we find in the survey
- Any permits to work or inductions
When the work has to happen, how we reach it and how big the site is all affect the cost. Each of those is built into the quote, and the price is fixed before any work starts.
Asking for a quote
When you call or email, it’s useful to have:
- The site address and the type of premises
- Any symptoms, from odd noises to smells or leaks
- Photos showing the whole system and its surroundings
- When the site is open and when it’s quiet
Need a price for AHU cleaning? Please give us a ring on 0345 646 2711, or send details by email and tell us about the site. We’ll talk you through the work and send you a fixed quote before anything is booked.
Honest limits
A few issues sit outside what this work can do:
- Ductwork downstream of the unit, which is a separate clean
- Coils that are corroded or leaking and need replacing
- Mechanical faults with motors, belts or bearings
If in doubt, ring 0345 646 2711 or use the quote form and we’ll say what we think before you book.
Parts of the system we cover
- Filter sections
- Heating and cooling coils
- Supply and extract fans
- Internal panels
- Drain trays
- Dampers and louvres
Do you need AHU cleaning in Haslar?
Whatever surrounds a building in Haslar, the air drawn into its AHU carries dust, pollen and debris. Most of it lands at the intake and the first stage of filters, and some travels further into the unit.
These are the problems we see most often:
- Blocked condensate drains and slimy trays
- Dirty filters cutting the airflow
- Rooms that smell stuffy when the system runs
- Dust-coated heating and cooling coils
Healthcare ventilation, from large hospitals like Gosport War Memorial Hospital (about 1.2 miles north-west) to small clinics, depends on clean filters, coils and ducts.
What to look for in a quote
- Whether VAT is included
- Exactly which parts of the system are covered
- If the quote is a fixed price or an estimate
- What happens if part of the system can’t be accessed
How it works
At the end of the visit, someone from your team can look over the work with us. We point out anything that couldn’t be reached or needs a follow-up, and the same goes into the written report. All told, the work takes half a day to a full day per unit, with large plant planned over several shifts. Pictures of the system and its access let us plan the work in Haslar before we set off.
- We look at the unit and the plant area during the survey.
- We sheet the area and the unit is isolated.
- Each section is cleaned of dust, debris and slime.
- Coils and trays are cleaned and the condensate drain cleared.
- We close every panel, hand the unit back and send the report and certificate.
Before we arrive
- Have your last certificate or report to hand
- Arrange a key holder or contact on site
- Mention any locked doors, roof access or ceiling voids
How to get a quote
To help us quote: where the site is, what it is and its opening hours, a few photos and the last certificate or report, if there is one. Then phone us on 0345 646 2711 or email us.
Read more
Why deal with it now?
A clogged coil or dirty fan makes the unit work harder for the same airflow. That means more wear on the motor and rooms that feel less fresh, and a clean on your terms beats a breakdown on nobody’s. In a place like Haslar, ductwork and fans are easy to forget until something goes wrong.
One small site or a whole estate, the quote is built the same way: what needs doing, how we get to it and when. You will have a fixed price before we start.
Why us?
- Fixed quotes, usually within one working day
- Fully insured
- A written report with photos after every visit
- One number for every site across the South East and London
AHU cleaning around Haslar
The FSA’s food hygiene register lists about 17 schools, colleges and universities, about 26 hospitals, care homes and childcare premises and about 4 hotels and B&Bs with registered kitchens or food service within 1.5 miles or so of the middle of Haslar. Many buildings of this kind have supply and extract ductwork that gathers dust and needs inspecting. The nearest hospital to Haslar is Gosport War Memorial Hospital, about 1.2 miles north-west. Healthcare ventilation is a good example of why supply ducts need inspecting: the air goes straight to patients.
Wherever a school like Haselworth Primary School has ducted ventilation, a half-term visit keeps the work out of lesson time.
Haslar is about 2 miles south-east of Gosport, in Hampshire. From the centre of Haslar to the outskirts, we cover AHU cleaning for every kind of premises, from small sites to large estates. 683 places in Hampshire are on our list, large and small.
All of PO12 is covered for AHU cleaning, from the main roads to the quietest streets. Streets in the area include Froude Road, Military Road and Monckton Road, all of which we cover for AHU cleaning. Neighbouring places we cover for AHU cleaning include Clayhall (1 mile north-west), Alverstoke (1 mile west), Portsmouth Point (1 mile north-east), Privett (2 miles north-west) and Portsea (2 miles north-east). We also work in nearby towns such as Havant (8 miles north-east), Fareham (6 miles north-west), Horndean (10 miles north-east), Hedge End (12 miles north-west), Waterlooville (8 miles north-east) and Purbrook (7 miles north-east).
What’s near Haslar
Around Haslar, our work takes us to kitchens and buildings near The Fighting Cocks pub, Bay House School and St Vincent College, among other places. Haslar’s nearest station is Portsmouth Harbour station, roughly 1.5 miles north-east. Other landmarks nearby include Tricorn Centre (2.3 miles north-east) and Southsea Castle (1.8 miles east). Not far away are West of the River Alver.