Hampshire · Air handling unit cleaning
AHU Cleaning in Gundleton
AHU cleaning in Gundleton from ventilation hygiene specialists trading since 2009. Evenings, overnight and weekends, plus a 24/7 emergency line.
- Debris and leaves in the fresh air intake
- Dirty filters cutting the airflow
- Drain trays holding standing water
How we handle AHU cleaning in Gundleton
An AHU clean is a thorough examination and treatment of the unit. Every section is opened, cleaned and photographed, so you can see the unit’s condition for yourself. The work covers drain trays, filter sections and internal panels, and the jobs we see most are air handling units never cleaned inside and dirty fans and fan housings.
In rural areas, ventilation units are often in roof voids or outbuildings, where filters and drain trays get forgotten.
Duct Doctor has been trading since 2009, and we’re a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease. We also hold CHAS, SafeContractor and ISO 9001, and we are fully insured.
- Where
- Gundleton (SO24)
- Region
- Hampshire
- Records
- Report and pictures after the visit
- Quote
- Fixed quote, usually within a working day
- Working hours
- Out of hours as standard, 24/7 emergency line
- Call
- 0345 646 2711
- Reviewed
- 30 October 2026
FAQs for Gundleton
Can you come to Gundleton after we close?
Yes, out-of-hours work is a big part of what we do. That way a site in Gundleton doesn’t have to lose a day’s trading. Tell us your opening hours when you ask for a quote.
Will you come out to Gundleton?
Yes. Gundleton is within the area we cover across London and the South East. A survey first, from photos or a visit, means we arrive with the right kit.
What should I send you?
Where the site is, what it is and when it’s open, plus photos of the system and your last certificate or report if you have one.
Can you set up regular visits?
Yes. We run scheduled maintenance contracts, set at the interval the system needs. The report from each visit recommends the next date.
Does the AHU have to be shut down for cleaning?
Yes. We cannot clean a running unit, so it’s switched off and made safe first. We agree the timing with your site team.
Can you quote from photos?
In many cases, yes. Photos of the system and the access, plus your opening hours and last report, are often enough. Where we can’t see enough, we arrange a survey.
How do you protect the area?
Floors and surfaces near the work are sheeted before work begins, and anything we remove is contained. At the end, the area is cleaned down.
Are you insured?
Yes. We carry full insurance, and we have been trading since 2009.
Gundleton buildings and their air
About 52 miles out from central London, Gundleton is part of the South East area we work across. A survey and a fixed quote come first, then the visit at a time that suits you.
Ventilation work in and around Gundleton is risk-based: inspect, then clean what needs it.
Gundleton is about 7 miles south-west of Alton, in Hampshire. Wherever you are in the SO24 postcode area, we can carry out AHU cleaning at your premises. 683 places in Hampshire are on our list, from busy centres to quieter spots. Our Southampton page covers sites nearby, about 17 miles away.
Postcode districts we cover here for AHU cleaning: SO24. Whether your site is on Goscombs Lane and Bighton Lane or a nearby road, we can help. Close by, we work in Bishop's Sutton (1 mile south-west), New Alresford (2 miles west), Bramdean (3 miles south), Hinton Ampner (4 miles south) and Cheriton (4 miles south-west). Further out, we also cover Basingstoke (12 miles north), Winchester (9 miles west), Eastleigh (13 miles south-west), Horndean (14 miles south), Chandler's Ford (14 miles south-west) and Alton (7 miles north-east).
What’s near Gundleton
Around Gundleton, our work takes us to kitchens and buildings near Three Horseshoes Public House. Nearby you’ll also find Barton Castle (2.9 miles north). Open spaces near Gundleton include Shutts Copse and Red Hill.
What affects the cost of AHU cleaning
We quote each job individually. This is what makes a difference:
- How many systems or sites are involved
- Whether we need access equipment or extra panels
- Whether it’s a one-off visit or part of a schedule
- Travel, parking and unloading
What you pay 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 work begins, so there are no surprises.
What to send for a quote
What to send for a quote:
- Anything you’ve noticed, such as smells, noise, drips or poor airflow
- The paperwork from the last visit, if you have it
- Where the site is and what kind of site it is
- The roof, plant room or outside wall the system runs to
Getting a quote doesn’t take long. Send a few details and pictures, and we normally reply with a fixed quote within one working day. Where a survey is needed, we arrange a time that suits the site.
Multi-site and managed buildings
From a single site to a large estate, the standard is the same: a survey first, a fixed quote, the work timed around the site and a report with pictures.
Managing agents often deal with us directly. Send the address, what’s needed and how access works, and we will send a fixed quote.
Nearby places to Gundleton
What else we do in Gundleton
Keeping the system healthy
Simple habits between visits make a real difference. Our advice:
- File each AHU report in the maintenance log
- Book the next check in line with the report
- Report water on the plant room floor
- Keep the area around the fresh air intake clear
The ducts served by the unit may need attention too. Cleaning the unit and ducts together gives the best result, and we can survey both.
Regular inspection under TR19® Air shows when cleaning is due, rather than waiting for a problem.
When to call us in Gundleton
Most units live out of sight on roofs, in plant rooms or in ceiling voids, so they’re easy to forget about. Months can pass without anyone looking inside.
Signs it’s time to call us include:
- Drain trays holding standing water
- Air handling units due a clean after building work
- Air handling units with blocked filters
- Stale or musty smells from the ventilation
Classrooms and halls at schools such as Perins School are easiest to work in when pupils are away.
What to look for in a quote
- What insurance they carry
- Which accreditations they hold, and whether you can check them
- Whether inaccessible sections are listed on the report
- Whether the whole system is included, or only the parts that are easy to reach
What a clean will not put right
Not every problem is solved by AHU cleaning, and we’d rather say so up front. It won’t put right:
- Leaking heating or cooling coils
- Ductwork downstream of the unit, which is a separate clean
- Controls and BMS settings that run the unit
If you’re not sure, just call us on 0345 646 2711 or email us and we will give you a straight answer before booking.
What we work on in Gundleton
- Drain trays
- Dampers and louvres
- Supply and extract fans
- Filter sections
- Internal panels
- Heating and cooling coils
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 from a few hours for a compact unit to a day or more for a large one, and we clear up before we go. If the van will struggle with a lane or gateway near Gundleton, let us know and we’ll plan around it.
- First the unit is surveyed, from photos or a visit, and the scope agreed.
- We arrange the shutdown with your staff and sheet the area.
- Filters, coils, fan section and casing are cleaned in turn.
- Standing water and slime come out of the tray and the drain is checked.
- You get a TR19® certificate and a photo report.
Preparing for the visit
- Tell us about access, such as roof hatches, plant rooms, ceilings or locked areas
- Make sure someone can let us in and lock up afterwards
- Clear loose items from the work area
Ask for a quote
Some systems can be priced from photos; others need a survey. Larger sites, and anything hidden behind walls, ceilings or floors, are normally surveyed first. Either way, you get a fixed price before we start.
Related advice
Why act early in Gundleton
A slimy drain tray only gets worse. Left alone, it can overflow, leak into the plant area or ceiling below and spread smells through the system. Clearing it now is a much smaller job. In a small place like Gundleton, a system that fails can take a site out of use.
Putting the work off seldom saves money. Problems in a system tend to grow, which can make the next visit longer. If you’re not sure what’s needed, call us on 0345 646 2711 or use the quote form for straight advice and a fixed quote.
Why book with us
- We diagnose before we treat
- Work around your opening hours, with 24/7 emergency cover
- Member of BESCA Vent Hygiene Elite, cleaning to BESA TR19® Grease
- Photo reports with every job