Red Mitsubishi Electric wall-mounted air conditioning unit installed on an interior wall, showing the front panel, airflow vent, and Mitsubishi logo in a modern indoor setting.

Build Your Air Conditioning Kit in Minutes

Enter your room dimensions, compare suitable systems and request a tailored installation quote using our air conditioning kit builder.

BUILD MY KIT

Only the Best Brands

Our Curated Selection of Air Conditioning Brands

We have partnered with three of the most reputable brands in the industry to offer you a range of options that balance performance, style, and value.

  • The Smart & Cost-Effective Choice

    Midea

    Globally recognized as a solid and cost-effective option, Midea provides reliable heating and cooling all year round. With a focus on energy efficiency and a wide range of operating modes, Midea is the perfect choice for those seeking smart technology and great value.

    • Smart Control: Many models come with Wi-Fi connectivity, allowing you to control your air conditioning from your smartphone.

    • Energy Savings: Designed for high efficiency, Midea units help to lower your electricity bills.

    • Quiet Operation: Enjoy a peaceful environment with systems engineered for minimal noise.

    Start My Kit Build
    Midea black wall-mounted air conditioning unit supplied and installed by RS Air Conditioning Services Ltd for residential and light commercial cooling in the UK
  • The UK's Choice for Reliability

    Fujitsu

    A solid option for market reliability in the United Kingdom, Fujitsu delivers all the benefits of leading brands while remaining a cost-effective solution. Known for their robust build and consistent performance, Fujitsu systems are a dependable choice for any environment.

    • Market-Leading Reliability: Built to last with a strong reputation for durability and performance.

    • Advanced Technology: Features like inverter compressors and smart controls ensure consistent and efficient operation.

    • Superior Air Quality: Advanced filtration systems remove dust and allergens for a healthier indoor environment.

    Start My Kit Build
    Fujitsu black wall-mounted air conditioning unit supplied and installed by RS Air Conditioning Services Ltd for residential and light commercial cooling in the UK
  • The Pinnacle of Air Conditioning Technology

    Mitsubishi Electric

    As a market leader in the United Kingdom, Mitsubishi Electric is at the forefront of air conditioning innovation. Benefitting from the latest technologies, contemporary designs, and globally recognized reliability, these units offer a premium experience.

    • Cutting-Edge Technology: Benefit from the latest advancements in energy efficiency and performance.

    • Whisper-Quiet Operation: Engineered for minimal sound, ensuring a tranquil home or office.

    • Stylish Designs: With ongoing facelifts and a range of styles, Mitsubishi Electric units complement any interior.

    Start My Kit Build
    Mitsubishi Electric black wall-mounted air conditioning unit supplied and installed by RS Air Conditioning Services Ltd for residential and light commercial cooling in the UK

AIR CONDITIONING QUOTE BUILDER

Build Your Kit in Five Quick Steps

Our kit builder will take you through a few quick steps, starting with your room size, then selecting your preferred unit, trunking, and finish options. It’s quick, straightforward, and designed to give you the perfect setup for your space.

Unit Calculator
  • Room
  • Unit
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Room Dimensions

Tell us about the space you'd like to cool or heat. We use the room dimensions to recommend the right system size for efficient performance and comfort.

As your room exceeds 4 metres, a custom consultation may be required. We recommend contacting us directly to provide more details about the room. Alternatively, you can proceed with this form, and we will be in touch with you as soon as possible.

W
kW
£
£
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Your calculated load exceeds 7 kW and is classified as a commercial unit; our team will provide a bespoke commercial solution at great pricing.

What This Means for You?

Frequently Asked Questions

Here are answers to some of the most common queries we receive from customers planning their air conditioning install.

Air conditioning does far more than just cool a room. With one system, you can maintain a comfortable indoor climate all year round heating in winter, cooling in summer. It helps improve sleep quality, supports better productivity, and keeps your home or workspace fresh and dust-free. Many units also filter out allergens and airborne particles, improving air quality for those with sensitivities. And with windows kept closed, you’ll also enjoy reduced noise and greater security.

The quickest way is to use our online air conditioning calculator. Just enter a few simple details about your room size and building type, and we’ll generate a tailored estimate for a full air conditioning kit, no guesswork required. If you’d prefer to speak to someone directly, our team is always happy to guide you through options and answer any questions. There’s no pressure, no obligation, just expert advice when you need it.

We only work with trusted, proven brands each with their own strengths. Midea offers excellent value for money and includes many smart features as standard, making it a great all-round choice. Fujitsu is known for rock-solid reliability and performance, a long-time favourite in UK homes and offices. Mitsubishi Electric leads the way on premium tech, ultra-quiet operation, sleek design, and industry-leading energy efficiency. We’ll recommend the best option based on your needs, budget, and expectations.

Not at all, every unit we supply is selected for its energy efficiency. Most systems feature inverter technology, which adjusts power output in real-time, using less energy to maintain your desired temperature. That means lower running costs compared to older systems or electric heaters. And because they provide both heating and cooling, they’re a cost-effective solution year-round.

In most cases, no planning permission is needed for domestic or commercial installs, especially when the units are fitted discreetly and don’t face a public road. However, if your building is listed, in a conservation area, or in a flat with shared external walls, it’s always best to double-check with your local council. We’re happy to advise based on your specific property, we’ve seen it all and know how to keep installs compliant and hassle-free.

Modern air conditioning systems are designed to be highly efficient, especially those with inverter technology. For a typical room, you might spend as little as 10–20p per hour depending on your tariff and usage. That’s often cheaper than electric heaters or fans. Plus, the ability to heat and cool with a single system gives you year-round comfort without juggling separate devices or costs.

Think of it as a fridge for your room, but smarter. Air conditioning systems extract heat from inside your space and release it outside, while circulating cooled, filtered air indoors. In heating mode, the process is reversed. Our systems constantly monitor and adjust airflow to maintain your chosen temperature efficiently, so you’re never too hot or too cold. No dry air, no fuss, just complete control.

Yes, all the systems we install offer both. They use a reversible heat pump, which means you get cool air in the summer and gentle, efficient heat in the winter. This makes air conditioning a brilliant all-season solution, especially in the UK where temperatures can swing quickly. You stay in control, without relying on radiators or space heaters.

For cooling, we recommend setting your system between 21–23°C, which balances comfort and efficiency. For heating, 20–22°C is ideal for most spaces. Setting the temperature just a degree or two higher or lower than necessary can increase energy usage, so the goal is steady comfort, not blasting it cold or hot. We’ll guide you on settings and timer use during your install.

We recommend servicing your system once a year to keep it running at its best. Regular maintenance helps prevent dust build-up, preserves air quality, and ensures the unit runs quietly and efficiently. It also protects your warranty. We offer simple service plans and reminders, so you don’t need to worry about missing a beat.