The insurance provider’s product covers buildings up to £2m and contents to £50,000.
Cover can be accepted on referral for properties that will be unoccupied for up to 60 days from inception and whereby minimal works are taking place.
Mick Cairns, The Source insurance director, said: “There are a lot of different options for landlords out in the marketplace but those with requirements that fall outside the norm can find it difficult to get the right level of cover.
“We’ve spent time talking to intermediaries with landlord clients and know that getting cover if the property is not going to be occupied straight away or if some maintenance work is taking place can be a real problem.
“The launch of our Sentinel product solves that problem and gives intermediaries a fresh new choice for their landlord clients.”
Blocks of flats can also be protected if cover is requested for the whole building and more than half of the block is let out.
Non-standard and flat roofed properties will also be considered on referral together with certain listed buildings.
The Source national sales manager, Brian Coulton, added: “Many of our regular brokers will be familiar with our Sentinel household policy, a competitively priced quality product that has been occupying a leading panel position with us for a number of years and as such we are delighted that Sentinel have developed an equally compelling proposition for our landlord panel.”