He said his wife's leg had been left dangling above a fully set table directly below and any diners who may have been in the restaurant at the time.
Mr Richardson said his wife suffered severe bruising to her leg during the fall and X-ray examinations and blood tests at Wairarapa Hospital had failed to find further injuries.
She had been in pain and "laid up" for the weekend, Mr Richardson said, and had not yet been cleared to return to work.
A restaurant spokesperson had told the couple the Wellington co-owner of the restaurant, John Apanowicz, held responsibility for the repair at the centre of the incident. He could not be reached for comment.