You could try "Menepia Properties"- Karol O'Shea- not sure the number
They specialise in house rentals in Rosslare Strand, Co Wexford. Excellent spot with championship golf course, Kellys Hotel (brilliant food), a long sandy beach, community centre with kids play area/creche, tennis courts, indoor area, Bradys Bar, Chinese Restaurants & it is only 10 mins from Wexford Town.
I am probably biased in that I purchased a holiday home there 7 years ago, moved in for the Summer & didn't leave for 5 years!! When I built my new home, I still retained this house in Rosslare which we use most weekends- a lovely lovely seaside village.