That's according to doddl.ie
Homeowners throughout Co. Kildare could save up to €4,000 a year by switching their mortgage provider.
That's the sum that doddl.ie estimates most homeowners are over-paying, annually.
That could amount to €100,000 over the life-time of a 25 year mortgage.
There are over 30,000 mortgaged homes in Co. Kildare.
Martina Hennessy is Managing Director at doddl.ie.
She joined Clem Ryan on Tuesday's edition of Kildare Today.

Kilcullen House Burgled After Suspects Gained Access By Pretending To Be Doctors
Yellow Weather Warning Issued For Counties Bordering Kildare
Kfm Obituary Notices
Kildare Records Commercial Vacancy Rate Of 13.8% In June
Local School Principal Offers Advice To Families Preparing For Back-To-School
Delay To Completion Of Kilcullen Traffic Lights Highlighted As Schools Set To Return
Mother Of Teenager Killed In M9 Crash Apologises To Family Seriously Injured In The Collision