To whom it may concern,
DBS have carried the installation of a complete air conditioning system on two floors of our office building, with the most recent being completed in February, each at an approximate cost of £35,000.
The work carried out by DBS was completed diligently, to a high standard and in good time; the systems installed have been fitted to our total satisfaction and are fully operative. We found the engineers who attended site to be very conscientious, considerate of the working environment and tidy in their work.
We are in the process of authorising air conditioning to be installed on the third (and remaining floor) of our office building and will not hesitate to instruct DBS to carry this installation out.