Our Services
We deliver expert air conditioning installation, repairs and maintenance for homes and businesses across London, Middlesex, Hertfordshire and Essex. Expertly trained professionals to install and look after your equipment. We cleverly install with maintenance and after care in mind. If you want to get the maximum out of your system, inquire now about a maintenance contract. Get 15% off emergency call out fees and priority when your system start to malfunction.
Install
Professional air conditioning installation services tailored to your space, ensuring maximum efficiency and comfort from day one.
Maintenance
Comprehensive maintenance plans to keep your systems running smoothly, prevent breakdowns, and extend the lifespan of your equipment.
Emergency Call Out
Rapid response emergency services for critical system failures, available when you need us most to restore your indoor climate.
Repairs
Expert repair services for all makes and models of air conditioning units, focusing on quick diagnostics and long-lasting fixes.




about us
At Reliance Air Conditioning, we bring white‑collar professionalism to a blue‑collar industry. Every project is treated with care, from the first calculation and design to the final fixings and finishes. We carefully, design, size, install and maintain each system so it performs exactly as it should—quietly, efficiently and reliably. Our promise is simple: honest advice, meticulous workmanship and air conditioning you can rely on for years to come.
Types of Indoor Units
wall mounted units
Sleek and versatile climate solutions designed for individual room control. These units are highly efficient, easy to install, and offer quiet operation for homes and smaller offices.

ducted systems
The ultimate discreet climate solution. Hidden within ceiling voids, these systems distribute air via subtle grilles, providing uniform temperature control across multiple rooms or entire properties.

floor standing units
Ideal for environments where wall space is constrained. These powerful units sit at floor level and provide high-velocity airflow, making them perfect for large open areas or glass-walled rooms.

cassette systems
Standard for commercial and office spaces. These units fit flush into suspended ceilings and distribute air in four directions, ensuring even temperature distribution without taking up wall space.

underslung units
High-capacity cooling for large-scale commercial applications. These units are mounted directly onto high ceilings, providing powerful and consistent airflow across extensive floor spaces.

