HSS said that the acquisition would enable it to offer a wider range of large capacity and specialist generators. Abird has seven depots across England and Wales.
Abird will continue to trade as Abird Generator Hire and will retain the existing management team and 60-strong workforce, led by managing director Chris Anspack.
Mr Anspack said: "Today's announcement is an important milestone in the growth of our company. I am delighted that the deal has been successful. We have been looking at the best options to manage our growing business. While Abird Generator Hire will continue to trade as a separate brand, joining the HSS Hire Group presents a great opportunity to unlock new investment as we embark on the next stage of our growth and development.”
HSS chief executive Chris Davies said: “We are excited to start this new phase of the Abird Generator Hire story with Chris Anspack and his talented management team. We at HSS Hire were really impressed by their business, the quality of product and service offering as well as a strong track record. We look forward to working with Chris and his team to further strengthen and develop Abird Generator Hire's leading position over the coming years. We strongly believe that together we have the perfect foundation for both Abird Generator Hire’s successful future development whilst complementing our driving ambition at HSS Hire to ensure an unrivalled hire experience.”