The man was brutally beaten and suffered a suspected broken nose, cheekbone and fractured hand after three men forced their way into the house on Auckland Road at round 8.30pm on 1st April.
His terrifying ordeal began when his 63-year-old wife answered a knock at the door and was then thrown across the kitchen by the thugs - who banged her head on the oven, smashing the glass door.
He leapt to her defence and threw a ‘few punches himself’ before being set upon in an attack which lasted minutes.
Now Crime-fighting charity Crimestoppers is offering a reward of up to £5,000 for anyone who provides information leading to a conviction.
Detective Inspector Rich Monk said: “Someone out there knows who did this. You’ve seen the picture of the appalling injuries the victim suffered. He fought as best he could against the three intruders so they wouldn’t harm his wife, but they made him pay for that bravery.
“These are violent men unconcerned by the consequences of their actions. Tell us who they are so they can’t hurt anyone else.
“This reward may offer an extra incentive to someone who has been unwilling or undecided about coming forward before now.
“If you have any information, no matter how insignificant it may seem, please call us.”
If you have any information that can help the investigation contact 101 or, to be eligible for the reward, call Crimestoppers on 0800 555 111.
You will required to give your name to Crimestoppers to qualify for the reward but your call will be treated with the utmost confidence.