Domestic Ventilation Systems
Air Handling Units / Water Chillers

We supply, install & service all types of Air Handling Unit (AHU’s) across London, Essex, Oxford & Cambridge.

Air Handling Units & Commercial Air Conditioning Systems Including Air & Water Chiller Units

air handling supply

What Is An Air Handling Unit?
An air handling unit (normally abbreviated to AHU), is a large air conditioning device used to regulate, control and circulate air as part of a heating, ventilating and air conditioning system. An air handling unit is usually a large metal box or container, inside which sits a blower, heating or cooling elements, filter racks or chambers, sound attenuators, and dampers. In normal installations the air handlers usually connect to a ducting system that evenly distributes the conditioned air through the building after which it is returned to the air handling unit where the process starts again.

Sometimes smaller self contained air handling units can discharge and admit air directly to and from the space being conditioned without ductwork or piping being needed to move the conditioned air around the building, these units are known as self-contained AHU’s.

Smaller localised air handlers (self-contained units) are often referred to as terminals or terminal units and may only include an air filter, heater and blower; these small terminal units usually have blower coils or fan coil units or they can be water cooled with different types of heat exchanger, these water filled units are normally referred to as chillers or water chillers. A larger air handler that conditions 100% of the outside air and no recirculated air, is known as a makeup air unit (MAU). An air handler designed for outdoor use, typically on roofs, is known as a packaged unit (PU) or rooftop unit (RTU).

Air Handling Unit Supply

Crystal Sigma is a leading UK supplier of Air Handling Units & water chillers for commercial and industrial purposes, we supply offices, hospitals, banks, warehouses public buildings and many more. We can take care of everything in relation to your air management system, from the sourcing of genuine AHU’s to the negotiation of servicing contracts. We have a wealth of experience in the supply of air handling units and can install them to the highest standards in a wide variety of locations. As a leading air handling unit supplier, we can often negotiate the best possible pricing and discounts direct with the AHU manufacturers and we ensure these savings are passed on to our customers.

Air Handling Unit Installation Services

air handling unit installation

Installing a large air handling unit is a complex and specialist job, the sheer size of the larger units and the fact they are often located on rooftops in large cities like London makes the job of installing the units a challenging prospect in terms of logistics and available time frames.

At Crystal Sigma, we understand the complexities of undertaking such projects and we have the experience and technical expertise to ensure your new air handling unit is installed correctly, quickly and with the minimal amount of disruption to not only your business or organisation but those in the local area as well.

Due to the size of larger air handling units, a crane is often required to lift the units onto the rooftop; this process of craning the units into place can itself be challenging due to the problems associated with operating such large machinery in a cities often small or busy streets. We can help by managing the process by liaising with the relevant organisations / authorities such as Transport for London, local councils and planning departments, haulage and logistical firms.

Air Handling Unit Servicing, Maintenance & Repairs

air handling unit servicing

Crystal Sigma provide a comprehensive servicing plan for all types of air handling unit or water chiller system, we can look after all aspects of your system from the cleaning of ductwork, heaters and filters to the replacement of consumable or faulty parts.

When you have a heating problem, we understand that you need fast and highly-knowledgeable assistance. We believe your natural choice should be Crystal Sigma. Our heating engineers have a huge amount of experience in installing heating systems and new boilers from a wide range of manufacturers, so they also have the skills to confidently service and maintain them. Whether you require heating maintenance in a commercial building or domestic setting, our team will be on the job to fix the problem and leave you feeling relieved, pleased and most importantly - warm.

Contact us today for a free consultation or to speak to us about air handling units.