The five-year deal replaces their existing panel arrangement. The financial advice business is looking to promote home insurance to their one million customer base.
Head of new business, HBOS retail and general insurance partnerships, Jon Goodchild, said: "We're delighted to be awarded this exclusive partnership with a company which is so highly regarded by its customers. Halifax's 5 star defaqto products are an excellent fit with the discerning customer base of Hargreaves Lansdown."
Hargreaves Lansdown's head of home insurance services, Chris Worle, said: "This deal builds on our existing broking service to provide excellent features such as unlimited buildings cover and a range of options on contents cover. The partnership offers a fantastic overall proposition and we believe it will bring significant value to our customers.
"We found ourselves needing a partner who could deliver scale, without sacrificing standards. HBOS was one of the few insurance providers whose attention to detail and focus on customer service stretched to all areas, from quotes to claims and offers our clients low prices without compromising quality."
Worle added: "We are starting with home cover, with the distinct possibility of offering further insurance products as the relationship develops."