London and the South East

AHU Cleaning in Hertfordshire

Covering 381 places across Hertfordshire for AHU cleaning, done evenings, overnight or at weekends, with a fixed quote before we start and a report with photos afterwards.

Need AHU cleaning in Hertfordshire?

Call 0345 646 2711

Get a price

Towns we cover in Hertfordshire

Cleaning of air handling units, including filters, coils, drain trays, fans and internal surfaces. Choose your town from the list to see local details, or call or email us for a quick quote.

Largest places

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Postcodes in Hertfordshire

About AHU cleaning in Hertfordshire

An AHU clean is a thorough examination and treatment of the unit. We look inside each section, clean what we find and record it with pictures, so you can see the unit’s condition for yourself. The work covers heating and cooling coils, filter sections and drain trays, and the jobs we see most are drain trays holding standing water and dirty filters cutting the airflow.

We work around your opening hours, not the other way round. Most visits are booked for when the area is out of use, such as evenings, overnight, early mornings or weekends. When the team arrives, the work area is protected and the relevant equipment is switched off to cool, and the work takes a single shift for a typical unit, longer for large or heavily soiled ones.

First the unit is surveyed, from photos or a visit, and the scope agreed.
The unit is shut down with your site team and the area protected.
Filters, coils, fan section and casing are cleaned in turn.
Drain trays are cleared and cleaned and the outlet checked.
A TR19® certificate and photo report follow the clean.

What affects the price in Hertfordshire

A single site or a whole portfolio, we price it on the same basis: what needs doing, how we get to it and when. You will have a fixed price before we start.

What you get with us

We diagnose before we treat
Photo reports with every job
Evenings, overnight and weekends, plus 24/7 emergency callout
CHAS and SafeContractor accredited, with ISO 9001

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 work begins.

Local landmarks in Watford

In Watford, that means kitchens and buildings near The Estcourt Arms, Watford St John's Church of England Primary School and Church of St Andrew. You will also find Cassiobury Park (0.8 miles west) and The Watford UTC (0.5 miles east). There’s a railway station in Watford itself: Watford Junction station. A little further out are Hilfield Castle (2.8 miles east) and Charter Place (0.5 miles south). The countryside around Watford includes Harrow Weald Common.

Ventilation across Hertfordshire

In Hertfordshire, systems range from big plant rooms in places such as Watford, Hemel Hempstead and Stevenage to single units tucked in a roof void. Every system has filters, coils, drain trays and ductwork to keep clean.

We work across London and the South East, and Hertfordshire is part of that area. Each job starts with a survey and a fixed quote.

Watford: Watford General Hospital, about 1.1 miles south, is the nearest hospital to Watford, and healthcare sites of every size need their supply air kept clean. Classrooms and halls at schools such as Watford St John's Church of England Primary School are easiest to work in when pupils are away.

Common problems we fix in Hertfordshire

Most units live out of sight on roofs, in plant rooms or in ceiling voids and are rarely seen by anyone but maintenance staff. It’s easy for a long time to go by without anyone opening the panels.

Keep an eye out for any of the following:

Dust built up on fan impellers
Condensate trays that will not empty
Air handling units due a clean after building work
Stale or musty smells from the ventilation

Between visits

No system stays clean for ever, but care slows the build-up. Our tips:

File each AHU report in the maintenance log
Note any water around the unit or leaks below it
Check the drain tray is emptying during routine visits
Stick to the filter change plan

You receive a TR19® certificate and a photo report after the clean. They belong in the plant or maintenance log.

Check drain trays and condensate drains during routine maintenance. A drain that’s cleared early never gets to the slime stage.

How we price AHU cleaning

A fixed price needs a few facts first. We check:

Travel, parking and unloading
What state the system is in
When the work can happen, such as evenings, overnight or weekends
Whether several sites go on one quote

Every site is different, so each one gets its own fixed quote. Size, access, the condition of the system and when we can work all play a part.

Asking for a quote

You don’t need the technical terms. Just send:

When the site is open and when it’s quiet
How we’d reach plant on a roof or in a plant room
Photos showing the whole system and its surroundings
The site address and the type of premises

To get a fixed quote, call us on 0345 646 2711, or send details by email with the site type, your trading hours and a short description of the system. A few photos and your last certificate or report help a lot. You will normally have a quote within one working day.

Part by part

Drain trays

A tray that does not drain becomes a pool of stagnant water in the airstream. We clean it and report anything about the tray or drain that needs fixing.

Fans and fan sections

Build-up on fan blades can upset the balance and add wear. A clean fan runs more smoothly.

Managing agents and facilities teams in Hertfordshire

We work for landlords, managing agents and facilities managers as well as the people running the site. Shared systems, like a riser serving several units, need a clear agreement on who books the work, and we are happy to quote for all of it.

Managing agents often deal with us directly. Tell us the site, the work and the access arrangements and we’ll come back with a fixed quote.

Questions from Hertfordshire

Do you work evenings or weekends?

Yes. We time the work to fit the building’s hours. Healthcare and care settings are planned with staff.

How much does AHU cleaning cost in Hertfordshire?

Every site is different, so each gets its own fixed quote. For a quote, give us a ring on 0345 646 2711 or drop us a line with the site type, opening hours and a few photos.

When should our AHU next be cleaned?

Under TR19® Air, cleaning is led by inspection and risk rather than a set calendar. Each report suggests when the unit should next be looked at.

What’s included in an AHU clean?

Every section that collects dirt: filters, coils, tray, fan and panels. We confirm the scope after looking at the unit.

Can you come out in an emergency?

Yes. For anything urgent, such as a fan failure or damage after a fire, ring the 24/7 line and we’ll talk you through the next steps.

Do you survey before quoting?

Yes, every time. Diagnosis comes before treatment: the survey shows what needs doing and what access we need and the fixed quote is built on it.

Are you insured?

Yes, fully. We also hold CHAS and SafeContractor for clients who vet their contractors.