Central Hunter crime manager Detective Inspector John Zdrilic said the men, one armed with a bat and the other wielding a wrench, entered the Pyne Way home about 8pm.

Inspector Zdrilic said they beat the man on the head with the weapons before they stole a quantity of cash and left the premises.

A 39-year-old woman, who was also at the home during the incident, was not physically injured.

The 51-year-old man was air-lifted to John Hunter Hospital with head and arm injuries.

He is in a stable condition.

A crime scene was established at the site and forensic investigations are ongoing.

One of the offenders was described as being Caucasian while the other a Pacific Islander. Both men were of a large build.

Police are appealing for anyone with information to contact Maitland police on 4934 0200 or Crime Stoppers on 1800 333 000.