
Free Site Surveys & Quotations
For a free quote call us today on 0800 949 9070
We have used Lee Jackson Air-conditioning for installation and on-going maintenance for the past four years ever since our original supplier let us down, their service levels have been exceptional and I would have no hesitation recommending them.
Richard Grout, Centre Principal, Porsche Leicester
Lee Jackson Air Conditioning have consistently exceeded our expectations over the years and they’re our first port of call when it comes to air conditioning for our projects.
I would like to thank LJAC for their practical, can do and helpful approach on the Advanced Manufacturing Building. Throughout the project I found the whole team to be proactive and professional at all times, and have delivered a very high standard of installation for the University.
Lee Jackson Air Conditioning have been installing, servicing and repairing air conditioning systems across Derby and Derbyshire for over 20 years. Our engineers are F-Gas certified and SafeContractor accredited, working with leading brands including Mitsubishi, Daikin, Fujitsu, Samsung and Panasonic to deliver installations that last.
We cover the full range of requirements, from a single domestic unit for a Derby home to large-scale commercial air conditioning for offices, schools, hotels, restaurants and warehouses across the region.
Every job starts with a free site survey and a fixed price quotation before your installation goes ahead.
Call us on 0800 949 9070 or get in touch online to arrange your free quote.

Free Site Surveys & Quotations

In-house Team of Qualified Engineers

Covering the wider Derbyshire area
All of our engineers are able to offer expert service in your professional setting. Our work revolves around your company atmosphere, we understand that you need the work to be done as efficiently as possible so that your staff can carry on with the day-to-day. Our Derby Air Conditioning service covers everything from the planning to maintenance so we’ll be with you every step of the way!
With that in mind, we’ll make sure that we work as fast as possible to bring you the best service possible. If you’re in need of office air conditioning, ducted AC, ceiling-mounted or floor-mounted air con, we’ll supply and install each and every unit to the highest standard.
We understand that domestic installations need to work around your lifestyle, you’re busy so we’ll do everything we can to schedule works around your timeline. We instil in each and every member of the team, respect for our customers’ home. There is nothing worse than having someone walk around your home making a mess. That’s why we do our best to make sure that we keep things clean and tidy.
Whether you’re looking for wall-mounted air conditioning or full size, ducted air con units, we’ll be able to install and supply any brand including Samsung, to Mitsubishi and even Fujitsu.
Give us a call on 0800 949 9070 for a free quote!
We are proud to offer a local service for local residents, retail spaces and businesses, which is why we cover Derbyshire with our expert maintenance service. This means that whether we installed your air conditioning or somebody else did, our certified engineers are more than happy to come and service your system so that you can carry on using it. We also provide repair services for more severe issues where electrical work or a replacement is required.
Give us a call today on 0800 949 9070 or head over to our maintenance page to schedule a service asap using our contact form!
A VRF Air Conditioning Project designed by Derry Limited and installed by Lee Jackson Air Conditioning.
Advanced Commercial Interiors (aci) have used us for several large scale air conditioning projects to run alongside their office refurbishment works for customers across the UK.
Do you have any questions for our Derby air con installation team? We’ve answered some of the most popular queries below. For anything else, please give us a call on 0800 949 9070.
The cost of air conditioning installation in Derby will vary considerably based on the number of indoor units, building layout and any structural work required. We offer free site surveys and quotations, so you’ll get a clear, fixed price before any work begins.
Most residential installations are completed within a day. A straightforward wall-mounted split system typically takes four to six hours, while larger multi-room or ducted systems may require two to three days, depending on the scope of work. We work around your schedule to minimise disruption, particularly for commercial clients where downtime needs to be kept to a minimum.
In most cases, residential air conditioning units in Derby fall under permitted development rights, meaning planning permission is not required. Exceptions include listed buildings, properties in conservation areas, and certain flats where external units are restricted. Our engineers can advise you during a free site survey if there are any local restrictions that apply to your property.
Yes. Our engineers are trained across all major brands, including Mitsubishi, Daikin, Fujitsu, Samsung and Panasonic, and we’re happy to service or repair systems installed by any company. Whether you need a routine annual service or a fault diagnosis, we cover Derby and the surrounding Derbyshire area.
We cover Derby city and the wider Derbyshire area, including Long Eaton, Ilkeston, Belper, Swadlincote, Ripley and Heanor. For commercial projects, we also work across the East Midlands and nationwide where required. If you’re unsure whether we cover your location, give us a call on 0800 949 9070.