Hampshire · Air handling unit cleaning
Air handling unit cleaning in Frogmore, Hampshire
AHU cleaning in Frogmore from ventilation hygiene specialists trading since 2009. Out-of-hours visits and 24/7 emergency callout.
- Fan sections that haven’t been cleaned in years
- Air handling units never cleaned inside
- Condensate trays that won’t empty
What happens on the day
There’s very little for your team to do on the day. Someone lets us in at the agreed time and shows us where everything is, and we take it from there. Afterwards, the area is left tidy and the written report follows. For a site near Frogmore, the work is booked around your opening hours, evenings and weekends included.
- 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.
- Coils and trays are cleaned and the condensate drain cleared.
- The unit is closed up and handed back, with a report to follow.
Before we arrive
- Move anything stored near the system
- Let us know how we reach the system, including roofs, risers and plant rooms
- Tell us where we can park and unload
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, the quote is fixed before any work is booked.
Related advice
AHU cleaning in Frogmore
Think of an AHU clean as a full check-up for the ventilation. Every section is opened, cleaned and photographed, so you can see the unit’s condition for yourself. If you’re dealing with rooms that smell stuffy when the system runs and fan sections that haven’t been cleaned in years, we can put it right.
Visits to a place like Frogmore are fitted around opening hours. The method doesn’t change: inspect first, clean, then record what was done.
For insurers and inspectors, the record counts. So every job comes with a written report and photos, and grease extract cleans come with a TR19® certificate issued through the BESCA Vent Hygiene Elite portal.
- Where
- Frogmore (GU17, GU47, GU46)
- Wider area
- Hampshire
- Reporting
- Report and photos after the visit
- Quote
- A fixed price before we start
- Hours
- When your site is closed, plus a 24/7 line
- Telephone
- 0345 646 2711
- Reviewed
- 30 October 2026
Why it’s worth doing now in Frogmore
Tenants, auditors and owners may want proof that the air handling plant is kept clean. Our certificate and photo report give you clear evidence, ready to show anyone who asks. You choose the date of a planned visit, and a breakdown never asks.
We do not list prices on the website, because each job is priced on what it involves. Call for a fixed quote, and we will talk you through it.
Why choose Duct Doctor in Frogmore
- Accredited under CHAS and SafeContractor, with ISO 9001
- Trading since 2009
- We diagnose before we treat
- A single point of contact for sites across the South East and London
Take a look at what affects the cost and our accreditations.
AHU cleaning around Frogmore
The FSA’s food hygiene register lists about 8 schools, colleges and universities and about 12 care, childcare and hospital premises with registered kitchens or food service across Frogmore and its immediate surroundings (about a mile and a half). Classrooms, bedrooms and care spaces are often served by ducted air, and that ductwork collects dust over time. For Frogmore, the closest hospital is Frimley Park Hospital, roughly 2.6 miles south-east. Clean air matters most where people are unwell, and that’s as true in a care home as in a hospital. We cover Frogmore, about 32 miles from central London, as part of our work across London and the South East. The visit is fixed around your opening hours, not ours.
If you run an office near Sandhurst station, its supply ductwork can gather dust for years before anyone looks inside. School buildings such as Frogmore Junior School are usually done in the holidays, so classrooms are not disturbed. Healthcare ventilation, from large hospitals like Frimley Park Hospital (about 2.6 miles south-east) to small clinics, depends on clean filters, coils and ducts.
Frogmore is about 1 mile south-west of Sandhurst, in Hampshire. Whether your site is in the middle of Frogmore or further out, AHU cleaning is available to all kinds of commercial premises, from small sites to large estates. Frogmore is one of 683 places in Hampshire where we work for AHU cleaning. For sites nearby, see our Reading page, about 11 miles away.
Our technicians cover all of GU17, GU47 and GU46 for AHU cleaning and the roads nearby. You will find streets such as Bell Lane, Green Lane and Reading Road, all of which we cover for AHU cleaning. We also cover the places around Frogmore: Blackwater (1 mile east), Hawley (1 mile south-east), College Town (1 mile north-east), Sandhurst (1 mile north-east) and York Town (2 miles east). Larger places within reach include Basingstoke (14 miles west), Farnborough (3 miles south-east), Fleet (5 miles south-west), Aldershot (6 miles south), Alton (15 miles south-west) and Tadley (15 miles west).
Local landmarks in Frogmore
Around Frogmore, our work takes us to kitchens and buildings near White Swan pub, Frogmore Community College and Sandhurst Memorial Park and the streets around them. Frogmore’s nearest station is Sandhurst station, about 0.8 miles north of the centre. A little further out are Staff College Museum (2.1 miles east) and Frimley Park Hospital (2.6 miles south-east). Open spaces near Frogmore include Horseshoe Lake and Wildmoor Heath.
Questions from Frogmore
Can you clean school ventilation in Frogmore during the holidays?
Yes. The holidays are the usual time for school work. Around Frogmore, the Food Standards Agency lists about 8 schools and colleges with registered kitchens within a mile and a half or so. You can phone us on 0345 646 2711 or drop us a line with the dates the site is empty.
Can you come to Frogmore after we close?
Yes. We work evenings, overnight and at weekends. The site is handed back ready to open. Just ring 0345 646 2711 or drop us a line with your opening times and we will plan around them.
Are you accredited?
CHAS, SafeContractor, ISO 9001 and BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease. We’re fully insured and have been trading since 2009.
What happens to the waste?
Waste is contained during the work and removed when we leave, including grease, debris and dirty water. None of it is left on site.
Can we book visits on a schedule?
Yes. Scheduled maintenance plans are part of what we do, with visits at the interval your system needs. The report from each visit recommends the next date.
What do you clean inside the unit?
The main parts are the filters, coils, drain tray, fan and inside of the casing. The survey confirms what’s in your unit before we quote.
Can you look after several sites?
Yes. Our area covers London and the South East, so we can schedule a run of sites as one programme. Each site gets its own report and pictures.
How do you protect the area?
We start with protection: sheeting over floors, worktops and anything close to the work. We tidy up and take our waste away before we leave.
What AHU cleaning can’t fix
A few issues sit outside what this work can do:
- The supply and extract ducts, quoted separately
- Airflow problems caused by the system’s design
- Faulty motors, drives or bearings
If you are not sure, just ring 0345 646 2711 or send us an email and we’ll give you a straight answer.
Where we work
- Drain trays
- Internal panels
- Supply and extract fans
- Filter sections
- Heating and cooling coils
- Dampers and louvres
For landlords and multi-site operators
If you look after several sites, we can schedule visits across all of them on one quote. Each site gets its own report and photos, so each one has its own record.
We regularly work with managing agents. Send the address, what’s needed and how access works, and we’ll send a fixed quote.
Staff cleaning versus specialist work
Staff cleaning and specialist work are not the same thing. Wiping filters daily and washing them weekly keeps the visible parts in order, but grease that has passed the filters is out of reach. That part needs specialist access and equipment.
Your own staff can handle the daily basics: wiping canopies, washing grease filters and recording it in a log. What they cannot safely do is clean inside the ductwork, the fan or the risers, and that is where we come in.
Aftercare tips
No system stays clean for ever, but care slows the build-up. Our tips:
- Report musty smells from the vents straight away
- Store the TR19 paperwork where auditors can find it
- Diary the inspection date recommended in the report
- Keep the area around the fresh air intake clear
When we have closed the unit up, it can be restarted with your site team. Check the drain tray is emptying over the first few days to confirm water is draining away.
Have the unit inspected regularly, in line with the risk-based approach of TR19® Air instead of leaving it to guesswork.
Places near Frogmore
Other services in Frogmore
Different parts, different methods
Rooftop and plant room units
Smaller units in ceiling voids are part of the work as well. We protect the area below before opening them.
Internal casing and panels
We open each section through its doors and close them securely when we’re done before the unit is handed back.