If you are a landlord, you are eligible to claim the cost for buying and installing these energy improvement measures in your rented properties. You can apply through your normal tax return. This Scheme will finish in April 2015.
If you are a landlord, and you would like to make the following improvements to your property:
You could claim up to £1,500 for each property you rent, however, if you rent out a building containing multiple flats, you can claim up to £1,500 for each flat being improved. If you are installing the energy upgrades yourself, then you can only claim the cost of buying. You can simply apply for the allowance through your normal Tax return.
For more information please visit https://www.gov.uk/landlords-energy-saving-allowance