18 September 2025

At BDS Services Limited, we provide professional air conditioning installation in Birmingham. Our team installs high-quality, energy-efficient split systems that are ideal for bedrooms, living rooms, home offices and small commercial spaces. Currently, we supply and install two of our most popular 2.5kW wall-mounted systems: Mitsubishi Heavy Industries 2.5kW – £1,049 Installed Sinclair 2.5kW – £899 Installed Both systems deliver powerful cooling during summer. In addition, they provide efficient heating throughout winter, making them a smart year-round solution. Mitsubishi Heavy Industries 2.5kW – £1,049 Installed For homeowners who want premium performance, the Mitsubishi Heavy Industries 2.5kW wall-mounted split system offers quiet operation, strong reliability and excellent energy efficiency. Key Features: 2.5kW cooling capacity (ideal for rooms up to approx. 25m²*) Heat pump technology for heating and cooling A++ energy efficiency rating Inverter technology to reduce electricity usage Ultra-quiet indoor operation Advanced air filtration Modern, compact wall-mounted design R32 refrigerant with lower environmental impact Because of its high efficiency and low noise levels, this system is perfect for bedrooms and living areas. Installation starts from £1049 and includes standard back-to-back fitting in Birmingham. Learn more Sinclair 2.5kW – £899 Installed If you are looking for a more budget-friendly option, the Sinclair 2.5kW split system offers reliable performance at an affordable price. Designed for both domestic and light commercial use, this unit provides consistent cooling and heating throughout the year. Key Features: 2.5kW cooling output Reverse cycle heating function Energy-efficient inverter compressor Quiet operation Remote control included Slim and modern indoor unit R32 refrigerant technology As a result, this model is ideal for homeowners who want dependable cooling without stretching their budget. Installation starts from £899 across Birmingham and the West Midlands. Learn more Air Conditioning Size Guide – Room Size to BTU Choosing the correct air conditioning size is essential for efficiency and comfort. If a unit is too small, it will struggle to cool the room. However, if it is too large, it may waste energy. Below is a general guide used across UK installations: Room Size (sqm) Approx. Room Type Recommended BTU Typical kW Output 10–15 sqm Small bedroom / office 5,000–7,000 BTU 1.5–2.0 kW 15–20 sqm Bedroom / small lounge 7,000–9,000 BTU 2.0–2.5 kW 20–25 sqm Living room 9,000 BTU 2.5 kW 25–35 sqm Large lounge 12,000 BTU 3.5 kW 35–45 sqm Open-plan area 18,000 BTU 5.0 kW 45–60 sqm Large open space 21,000–24,000 BTU 6.0–7.0 kW Nevertheless, ceiling height, insulation and sun exposure can affect the final size recommendation. Therefore, we always provide a free survey before installation. What’s Included in Our Installation? When you choose BDS Services Limited, you receive: Free site survey Professional sizing advice Standard back-to-back installation Outdoor condenser fitting Wall bracket and pipework Full system testing and commissioning Demonstration of controls Manufacturer warranty In other words, everything is handled from start to finish. Why Choose BDS Services Limited? As local Birmingham air conditioning specialists, we focus on quality, safety and customer satisfaction. Fully qualified and F-Gas certified engineers Competitive fixed pricing Fast installation turnaround Experience in domestic and commercial projects Ongoing servicing and maintenance support We install systems across Birmingham, Solihull, Sutton Coldfield, Harborne, Edgbaston, Moseley, Kings Heath and the wider West Midlands. Which 2.5kW System Is Right for You? If you prefer premium performance and ultra-quiet operation, Mitsubishi Heavy Industries is an excellent choice. On the other hand, if you want a reliable and cost-effective option, Sinclair offers outstanding value. Our engineers will assess your room size, layout and budget before recommending the most suitable system. Get Your Free Air Conditioning Quote in Birmingham Are you searching for trusted air conditioning installers in Birmingham? Contact BDS Services Limited today on 07429 776336 to book your free survey and secure professional installation from £899. Stay cool in summer. Stay warm in winter. Most importantly, stay comfortable all year round