Hertfordshire · Air handling unit cleaning
Air handling unit cleaning in Ashwell, Hertfordshire
AHU cleaning for Ashwell, from a team that has been trading since 2009. Out-of-hours visits and 24/7 emergency callout.
- Condensate trays that will not empty
- Dust built up on fan impellers
- Filters that are clogged or overdue
How we handle AHU cleaning in Ashwell
Units vary a lot in size, age and layout, from a small ceiling-mounted unit to a large rooftop plant. We look at the unit first, from photos or a site visit, and send you a fixed quote before any cleaning starts. The work covers filter sections, heating and cooling coils and internal panels, and common reasons people get in touch are leaves and litter drawn into the unit and plant that needs cleaning after a refit.
Smaller buildings around Ashwell often keep their ventilation units in a roof void or plant cupboard, out of sight and easy to overlook. Every unit, large or small, has filters, coils and a drain tray to keep clean.
Our accreditations include CHAS, SafeContractor and ISO 9001, and we are fully insured. We are also a BESCA Vent Hygiene Elite member, cleaning to BESA TR19® Grease, trading since 2009.
- Place
- Ashwell (SG7)
- Region
- Hertfordshire
- Paperwork
- Report and pictures after the visit
- Quotes
- Fixed quote, normally within a working day
- Working hours
- After hours by arrangement; emergencies any time
- Call
- 0345 646 2711
- Reviewed
- 30 October 2026
Multi-site and managed buildings
We also work for facilities teams across offices, schools and healthcare in Ashwell and across Hertfordshire. Larger estates can be phased building by building around the people who use them.
For anyone managing more than one site, we can schedule visits across all of them on one quote. Every building has its own written report, so each one has its own record.
Why it’s worth doing now in Ashwell
Dirt left in an air handling unit does not stay in the unit. It moves on into the ductwork and out into the rooms, so cleaning the ducts without the unit only goes so far. A planned visit to Ashwell fits your hours; an emergency doesn’t.
Working hours, access and the scale of the site all affect the cost. We take each of them into account, and the price is fixed before work begins.
Why us?
- Fully insured
- One number for every site across the South East and London
- Work around your opening hours, with 24/7 emergency cover
- Fixed quotes, typically within one working day
Take a look at our cost guide or our accreditations and certificates.
What the work involves, part by part
Internal casing and panels
The inside walls and floor of the casing collect dust and debris. Each section is cleaned from the intake through to the outlet.
Rooftop and plant room units
Rooftop units take the weather, and intakes can collect leaves and debris. The intake section gets particular attention.
How we price AHU cleaning
You’ll get a fixed price before any work starts. It’s based on:
- Whether several sites go on one quote
- Where the site is and how we reach it
- The times the site is available
- Any permits to work or inductions
Whatever the type of site, the quote works the same way: how much there is, how we reach it, what state it’s in and when we can work. Call for a fixed quote and we will explain each part.
Asking for a quote
When you contact us, it’s useful to have:
- Your last certificate, test record or report
- Where the site is and what kind of site it is
- The times we could work without disrupting the site
- Wide pictures of the system and the area around it
To get a fixed quote, ring 0345 646 2711 or email us and tell us the type of site, your opening hours and roughly what the system looks like. Photos and the last report, if you have one, make the quote quicker. You will typically have a quote within one working day.
What a clean won’t put right
Before you book, it helps to know what’s not included:
- Damaged coils beyond cleaning
- The supply and extract ducts, quoted separately
- Mechanical faults with motors, belts or bearings
If in doubt, call us on 0345 646 2711 or use the quote form and we’ll say what we think before booking.
What we work on in Ashwell
- Drain trays
- Dampers and louvres
- Heating and cooling coils
- Internal panels
- Supply and extract fans
- Filter sections
Ashwell questions
Do you offer AHU cleaning in Ashwell?
Yes, Ashwell is within the area we cover across London and the South East. A fixed quote usually follows within one working day of the survey details.
Can you come to Ashwell after we close?
Yes, evening, overnight and weekend work is normal for us. It means the site in Ashwell keeps running as normal. Just ring 0345 646 2711 or email us with your opening times and we’ll plan around them.
Is there a report after cleaning?
Yes, both a certificate and a report with photos. It includes a recommended date for the next check.
Are you accredited?
BESCA Vent Hygiene Elite membership, cleaning to BESA TR19® Grease, plus CHAS, SafeContractor and ISO 9001. We’ve been trading since 2009 and we are fully insured.
How far ahead should we book?
That depends on the slot you want and the size of the job. Tell us your preferred dates when you ask for a quote, and for anything urgent, ring our 24/7 emergency line.
Is a quote from pictures possible?
Yes, if we can see what we need. If not, a site survey comes first, and the quote follows that.
Do you offer emergency callouts?
Yes. 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.
Are you insured?
Yes, we are fully insured. We also hold CHAS and SafeContractor, for sites that check contractor safety.
AHU cleaning around Ashwell
The FSA’s food hygiene register lists about 3 hospitals, care homes and childcare premises with registered kitchens or food service in Ashwell and the streets around it, up to about 1.5 miles out. Many buildings of this kind have supply and extract ductwork that gathers dust and needs inspecting. For Ashwell, the closest hospital is Fairfield Hospital, roughly 4.8 miles south-west. If you run a surgery, clinic or care home, your ventilation deserves the same care as a hospital’s, on a smaller scale. About 37 miles out from central London, Ashwell 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.
For schools like Ashwell Primary School, the holidays are the usual time to inspect and clean ventilation.
Ashwell is about 5 miles north-east of Letchworth, in Hertfordshire. Whether your site is in the middle of Ashwell or further out, AHU cleaning is available to all kinds of commercial premises, from a single unit to a large public building. Our area takes in 381 places across Hertfordshire, large and small. There’s also a page for Milton Keynes, roughly 26 miles from Ashwell.
Our technicians cover all of SG7 for AHU cleaning and the streets around it. Whether your site is on High Street, Station Road and Alms Lane or a nearby road, we can help. If your site is just outside Ashwell, we cover Ashwell End (1 mile west), Bury End (2 miles west), Newnham (2 miles south-west), Caldecote (2 miles west) and Hinxworth (2 miles west). Within a short drive, we also cover Stevenage (9 miles south), Hitchin (8 miles south-west), Letchworth (5 miles south-west), Letchworth Garden City (5 miles south-west), Stotfold (4 miles south-west) and Baldock (4 miles south).
Around Ashwell
In Ashwell, that means kitchens and buildings near Rose And Crown Public House. For rail, the closest station is Ashwell & Morden station, roughly 2 miles east. Well-known places in the area include Bygrave House (2.2 miles south) and Fairfield Hospital (4.8 miles south-west). Green spaces nearby include Fox Covert.
The process
Everything the job needs comes with us, including protection sheets, the right tools and access kit. You only need to give us clear access and switch off what needs to be off. On site, the work takes a single shift for a typical unit, longer for large or heavily soiled ones. Evenings, weekends or a closed day all work for a site in a place like Ashwell.
- We survey the unit from photos or on site and agree what’s included.
- With your site team, the unit is switched off and isolated, then the area around it protected.
- Filters are dealt with as agreed, and the coils, fan and casing cleaned.
- Standing water and slime come out of the tray and the drain is checked.
- We close up the unit and send the certificate and before and after pictures.
Before we arrive
- Let us know when the site is closed or quiet
- Mention any sign-in, permit or induction we need
- Make sure someone can let us in and lock up afterwards
Ask for a quote
The quickest way to a quote is to send pictures: the system from a couple of angles, plus any access panels or hatches. Tell us what kind of site it is and when it’s open, and we can price many jobs without a visit.
Related advice
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When to call us in Ashwell
An overdue filter loads up with dirt, cutting airflow and sometimes letting dirty air bypass them altogether. After that, the coils and fan collect what the filter should have caught.
What we’re most often called out for:
- Dust-coated heating and cooling coils
- Dirty fans and fan housings
- Blocked condensate drains and slimy trays
- Intake sections clogged with outdoor debris
If you run a surgery, dental practice or care home near Ashwell, clean ventilation matters as much to you as to a hospital like Fairfield Hospital (about 4.8 miles south-west).
What to look for in a quote
- Whether the quote is based on a survey or pictures
- Whether they recommend a next date
- What hours they’ll be on site
- Proof of accreditation you can verify