Protect Your System with Regular Servicing—Save 15%
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Stay ahead of repairs with an annual maintenance plan. Secure your contract today to get:
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Regular servicing to keep equipment running like new
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15% off emergency call-out fees
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Priority response during peak seasons
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Maximum equipment lifespan and lower energy bills
New Unit Installation
Expert Servicing & Maintenance
Fast Repairs
Air Conditioning Installation & Services
Don’t let sudden breakdowns or poor installs disrupt your comfort. We deliver fast, stress-free heating and cooling for homes and businesses across London, Middlesex, Hertfordshire, and Essex.
Our expert engineers cleverly design every installation to prevent future breakdowns, maximize efficiency, and keep your energy costs low.
What our customers say
Reliable service backed by 5-star Google reviews.Â
"serviced all of our air conditioning units and did an excellent job. He explained everything clearly, answered all of our questions, and made the whole process easy to understand. At the end, he provided a detailed report showing the condition of each unit and any maintenance that may be needed in the future. We’re very happy with the service and would highly recommend him."
★★★★★
★★★★★
"Great service along with great advise - definitely the company you need to contact if you need air conditioning- high recommend"
Darwinder Sidhu
Riya V
Our Services
Install
Professional air conditioning installation services tailored to your space, ensuring maximum efficiency and comfort from day one.
Comprehensive maintenance plans to keep your systems running smoothly, prevent breakdowns, and extend the lifespan of your equipment.
Maintenance
Rapid response emergency services for critical system failures, available when you need us most to restore your indoor climate.
Emergency Call Out
Repairs
Expert repair services for all makes and models of air conditioning units, focusing on quick diagnostics and long-lasting fixes.
About Us
Like you, we know how stressful it can be to hire a contractor. You wonder if they’ll turn up when they say they will, if they’ll respect your home, or if you’ll be left with a mess and a rushed job.
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We started Reliance Air Conditioning simply because we believed you deserve a better experience.
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To us, taking care of your home or business isn't just about fitting equipment - it’s about giving you peace of mind. That is why our engineers aim to listen carefully, work neatly, and take genuine pride in every detail - from the initial design calculations to final finishes and regular servicing.
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.
