Hampshire · Air handling unit cleaning
AHU Cleaning in Colbury
AHU cleaning for Colbury and the surrounding area: diagnosis first, then a fixed quote, the work and a report with photos. Call for a fixed quote.
- Rooms that smell stuffy when the system runs
- Dust-coated heating and cooling coils
- Debris and leaves in the fresh air intake
About our AHU cleaning in Colbury
Drain trays under cooling coils are meant to empty. If the outlet blocks, standing water and slime build up, in the airstream that feeds the building. Cleaning and clearing it is a key part of the job. The work covers heating and cooling coils, supply and extract fans and filter sections, and the jobs we see most are intake sections clogged with outdoor debris and dirty coils holding back the airflow.
Work in a small place like Colbury starts with agreeing access and timings, and the ventilation is inspected, cleaned and recorded the same as anywhere.
We have been trading since 2009, and we are a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. CHAS, SafeContractor and ISO 9001 are in place too, and we’re fully insured.
- Location
- Colbury (SO40)
- Wider area
- Hampshire
- Records
- Written report with photos
- Quotes
- Fixed quote, typically within a working day
- Working hours
- Evenings, overnight and weekends; 24/7 emergencies
- Phone
- 0345 646 2711
- Last updated
- 30 October 2026
What we do, step by step
Protection comes first: sheeting goes over floors and surfaces close to the work. Then we make the system safe and start. The work on site takes a single shift for a typical unit, longer for large or heavily soiled ones, and the area is cleaned down before we leave. If the van will struggle with a lane or gateway near Colbury, let us know and we’ll plan around it.
- We agree a shutdown window that suits the building.
- Before cleaning, each section is photographed.
- Filters, coils and internal surfaces are cleaned from intake to discharge.
- We finish with the fan section and the drain tray.
- After photos are taken and the certificate issued.
Preparing for the visit
- Tell us the best time to work, such as after service or at a weekend
- Find the previous report, if there is one
- Allow time for equipment near the work to be turned off and cool down
Ask for a quote
The quickest way to a quote is to send pictures: wide shots of the system, close-ups of anything that worries you and how we’d get to it. Add the site type and your opening hours, and we can price many jobs without a visit.
Advice
What affects the cost of AHU cleaning
The price is fixed before any work begins. It’s based on:
- The scale of the work
- Parking and loading at the site
- The condition of the system
- Any permits to work or inductions
The cost depends on how big the system is, the condition it’s in and access to every part of it. We give you a fixed price before any work starts, so you know where you stand.
What to send for a quote
When you call or email, it’s useful to have:
- Photos showing the whole system and its surroundings
- The paperwork from the last visit, if you have it
- Any access panels or hatches you can see
- Where the plant sits or the system leaves the building, such as a roof or outside wall
Photos are enough for some jobs, while others need a look on site. Big or complicated sites, and systems that are hard to see in photos, get a survey first. Either way, you get a fixed price before any work starts.
Keeping the system healthy
Good habits slow the build-up between visits. A few tips:
- Don’t ignore odours coming through the grilles
- Note any water around the unit or leaks below it
- Keep filter changes on time and recorded
- Report stiff or damaged access doors
Photos in the report cover the filters, coils, drain tray, fan and casing, along with anything we couldn’t reach. It also notes faults we spotted, such as damaged panels or a blocked drain.
Regular filter changes are the best protection an AHU has. Once filters clog, dirt starts getting past them.
When something else is needed
We’ll always give you a straight diagnosis, so here’s what this work cannot put right:
- The supply and extract ducts, quoted separately
- Breakdowns that need a mechanical engineer
- Ventilation that was badly designed in the first place
If in doubt, call 0345 646 2711 or send us an email and we will say what we think.
Parts of the system we cover
- Heating and cooling coils
- Internal panels
- Supply and extract fans
- Drain trays
- Filter sections
- Dampers and louvres
Nearby places to Colbury
More services for Colbury
How the job changes from site to site
Filters
Dirty filters cut airflow and let dirt slip past their frames. The filter section is cleaned so new or cleaned filters sit properly.
Internal casing and panels
Dust settles on every internal surface of the unit. Each section is cleaned from the intake through to the outlet.
Multi-site and managed buildings
Records are where multi-site compliance often slips. Each visit produces a dated report with photos, ready to show insurers, fire officers or EHOs.
The Fire Safety Order 2005 puts the duty to manage fire risk on the responsible person, which may be the employer, owner, landlord, FM or managing agent. With shared responsibility, good records help everyone.
Leave it or put it right?
Facilities teams are often asked for evidence that the ventilation is looked after. Our certificate and photo report give you clear evidence, ready to show anyone who asks. Our emergency line runs 24/7, but a planned visit to Colbury is calmer for everyone.
One small site or a whole estate, we price it on the same basis: the work involved, the access and the timing. You’ll have a fixed price before we start.
Why book with us
- Photo reports with every job
- We’re fully insured
- Every job surveyed first
- Trading since 2009
Read how cleaning jobs are priced and how to check a contractor.
Colbury questions
Can you work in Colbury outside opening hours?
Yes, nights and weekends are routine for us. The work in Colbury can fit around your hours. Tell us your opening hours when you ask for a quote.
Do you clean school ventilation in Colbury in the holidays?
Yes. The holidays are the usual time for school work. There are about 11 schools, colleges and universities on the FSA’s food hygiene register within about 1.5 miles of Colbury. Booking early in the term gives the best choice of holiday dates.
Do you clean the ductwork as well?
Yes, supply and extract ducts, grilles and diffusers. The survey shows whether the ducts need cleaning now.
Do you work in Colbury?
Yes. Our technicians work in Colbury, within the South East and London area we cover.
What about areas you cannot get to?
We never leave them off the paperwork. You will know exactly which parts weren’t reached and why, and we can quote to improve the access.
Do you have insurance?
Yes. Duct Doctor is fully insured, and the details are available on request.
Will the ventilation be off while you clean?
Yes. The fan must be stopped and the unit isolated, so we plan it for a time that suits the building.
How do you keep the site clean during the work?
We cover floors and nearby surfaces with sheeting before we start, and waste is contained as we go. Before we leave, we tidy up and clean down.
Ventilation in Colbury buildings
Food Standards Agency data includes about 11 schools, colleges and universities and about 14 care, childcare and hospital premises within 1.5 miles or so of the middle of Colbury. Many buildings of this kind have supply and extract ductwork that gathers dust and needs inspecting. About 1 mile south-west of Colbury is Ashurst Hospital, the nearest hospital. Hospitals show how much a building can rely on its ventilation, and smaller healthcare sites rely on theirs too.
If you manage a school such as Foxhills Infant School, ventilation cleaning is best booked for the holidays. If you run a surgery, dental practice or care home near Colbury, clean ventilation matters as much to you as to a hospital like Ashurst Hospital (about 1 mile south-west).
Colbury is about 1 mile south of Totton, in Hampshire. We provide AHU cleaning for businesses, landlords and public buildings in Colbury and the rest of Hampshire. We cover 683 places across Hampshire, large and small.
Every address in SO40 is within our area for AHU cleaning, from busy streets to back roads. We also cover the places around Colbury: Ashurst (1 mile west), Lyndhurst (4 miles south-west), Emery Down (4 miles south-west), Balmerlawn (6 miles south-west) and Brockenhurst (6 miles south-west). Further out, we also cover Winchester (14 miles north-east), Eastleigh (8 miles north-east), Fareham (14 miles east), Chandler's Ford (8 miles north-east), Hedge End (9 miles east) and Lymington (10 miles south).
Around Colbury
Around Colbury, our work takes us to kitchens and buildings near Hounsdown School and The Forest Inn, among other places. Colbury’s nearest station is Ashurst New Forest station, about 1.2 miles south-west. A little further out are Ashurst Hospital (1 mile south-west) and National Dairy Museum (under half a mile south). Not far away are Testwood Lakes.