A BANORA POINT couple are alleging their home has begun to fall apart due to road works at Sexton Hill.

Brian and Margaret Stevenson have lived at Pioneer Pde, Banora Point, for about 40 years and were happy until cracks began appearing in their house.

Some span about an inch or more.

The couple have also had to put up with noise from the highway because there is no noise-proof fence around their home.

They have made numerous complaints to NSW Transport, Roads and Maritime Sevices (RMS) since the highway officially opened in September last year, but no one seemed willing to accept responsibility, Mr Steveson said.

Mr Stevenson is just looking for some answers.

"They (RMS) inspected our house and never got back to us," he said.

"They said the road construction had nothing to do with the damage to our house."

Mrs Stevenson said they had been suffering as a result of others ignorance.

"We're not looking for millions, just for someone to fix our house," she said.

Mrs Stevenson said her husband was so upset he could not sleep at night.

The RMS said  it had been in regular contact with the Stevesons during the course of the Banora Point upgrade and would continue to stay in touch.

"RMS has carried out noise monitoring to determine the best fencing for the property with results expected by the end of April this year," a spokesperson said.

"Nearby land has also been cleared to improve accessibility and RMS is advised an insurance assessment will be received in the next week."

Mr Stevenson maintained there had been no contact, but was happy with the response. .