
Air Handling Unit (AHU) Installation, Service, Maintenance & Repair
We provide air filter changes on contractual basis or condition-based monitoring for extra filter life as well as energy surveys on the air handling units.
We are a team of dedicated experts who help customers achieve filtration based solutions, a solution as simple as a filter change to a new air handling unit installation and much more.
FEL offer FREE site surveys, if you would like a quotation on a filter change contract, remedial works to systems or new system installations. Get in touch below and see how much you could save using Filtration Engineers Ltd.


What is an air handling unit (AHU)?
An air handling unit, commonly called an AHU, is the composition of elements mounted in large, accessible box-shaped units called modules, which house the appropriate ventilation requirements for purifying, air-conditioning or renewing the indoor air in a building or premises.
They are usually installed on the roof of buildings and, through ducts, the air is circulated to reach each of the rooms in the building in question.
What Does An AHU Do?
In addition to managing the proper ventilation of the interior with outside air, the AHU performs other functions:
A. Filtration and control of the quality of the air that will reach the interior by the use of air purification filters, and depending on the retention of these filters, the air will be clean.
B. Control of the air temperature that regulates the air conditioning system either cold or hot, maintaining the desired temperature in the interior of the building.
Recommended AHU Filter Changes?
For optimal performance, we recommend changing the air filters in your Air Handling Unit (AHU) at least every six months.
Regular maintenance can save energy, prevent breakdowns and extends the lifespan of your AHU. Filtration Engineers Ltd provide professional AHU maintenance nationwide in the UK.
AHU Cleaning Schedule?
We recommend cleaning your air handling units at least every six months to maintain efficiency and hygiene, to conform with BRCGS Food Safety Issue 8 standards.
FEL offer comprehensive services tailored to the food industry, focusing on air filtration, ventilation, and hygiene to ensure audit compliance and high-quality indoor air.
Nationwide Maintenance & Installation of Air Handling Systems
Air Handling Unit (AHU) cooling and heating coil replacements
Air Handling Unit (AHU) damper replacements
Air Handling Unit (AHU) Filter frame replacements
Air Handling Unit (AHU) fan and motor replacements
Air Handling Unit (AHU) ducting replacement and modification
Air Handling Unit (AHU) filters
Air Handling Unit (AHU) Fan & Plug fan installations
Air Handling Unit (AHU) fabric duct / air sock supply, fitting, and replacement
Air Handling Unit (AHU) fire damper replacements
Air Handling Unit (AHU) air movement analysis
Air Handling Unit (AHU) service & Maintenance
Air Handling unit (AHU) filter changes
Air Handling unit (AHU) remedial works
Air Handling unit (AHU) refurbishment works
Based in Bolton, Greater Manchester we cover North West areas of Liverpool, Preston, Chester, Lancaster, Manchester & Salford; Midlands area including Birmingham, Coventry, Derby, Nottingham, Wolverhampton & Worcester; South area including London, Bath, Bristol, Cambridge, Exeter, Hereford, Norwich, Oxford, Peterborough, Plymouth, Portsmouth, Poole, St Albans, Wells, Worcester & Winchester; North East area including Durham & Sunderland; Yorkshire area including Bradford, Leeds, Sheffield & York.
Please contact us if your area is not mentioned or you require more information.