Take control with our heating and air-conditioning systems for businesses, public organisations and home owners, as well as our refrigeration systems.
Installation
We design and implement comfort cooling and heating systems for all environments, from factories and offices to mission critical areas and prestigious buildings. We cater for completely new systems as well as redesigns or simple additions to your current facilities.
Repair
Our team of engineers have encountered a substantial range of problems relating to air-conditioning, refrigeration and heating throughout their years of expertise. There is nothing too big or small for us to fix. We are responsive and efficient problem solvers who will provide you with a cost-effective solution shortly after arriving on site.
Servicing & Maintenance
We offer scheduled attendance where we commit to a program of agreed maintenance tasks throughout the year. This is backed up by our Central Help Desk which is available 24 hours/day, 7 days per week, thus ensuring a rapid response for those unexpected instances.
Facilities Management
We manage a wide range of buildings including office buildings, commercial units, laboratories and multi-use buildings. This service is designed to ensure you feel assured that all services are being provided in an effective and professional manner with compliance obligations met.
Air conditioning and heating solutions designed for you
Established in 1981, McAlpine Grant Ilco Ltd (MGi) specialise in providing installation, maintenance and servicing of cooling and heating units to properties throughout the UK.
Our capability extends from design and installation through to comprehensive maintenance programs for Air Conditioning & Heating and Refrigeration. These services are offered across all business sectors, from domestic environments through to complex Commercial, Retail, Banking, Industrial, Healthcare and ‘Mission Critical’ locations.
We look forward to meeting you.
Why customers choose MGI
Selecting the right air conditioner installation company affects how well your system performs and how long it lasts. McAlpine Grant Ilco Ltd has installed air conditioning systems across Oxfordshire and other counties for years. Our clients return to us because we complete installations correctly and provide reliable maintenance and servicing afterwards. When we install your air conditioner, we follow manufacturer specifications, test the system thoroughly, and ensure you understand how to operate it efficiently.
Fast response
We respond to service requests within 48 hours. When your air conditioning stops working or performs poorly, we assess the problem on site and explain what needs fixing before we start work. We provide upfront costs and complete most ac repairs during the first visit.
Our experience
Our engineers have worked in building services for over 150 years. This means we can install single air conditioning units in small offices or design multi-zone systems for large commercial buildings. We've handled installations in hospitals, schools, offices, and industrial facilities across Oxfordshire.
Service you can trust
Clients we’ve worked for







We handle air conditioner installations from start to finish: site surveys, system design, installation, commissioning, and ongoing maintenance. Our engineers hold relevant qualifications and follow current regulations. After installation, we provide clear documentation and remain available if you need adjustments or have questions about your system.