RE-Mortgage or borrow from credit union? Help Please

I have a mortgage with PTSB for approx 23K which will finish in 3 years time, my repayments are currently 470 per month. I want to borrow about 30K, would it make better financial sense to remortgage from PTSB or switch to another lender, I would like a short term loan over about 5 or 7 years so that both my current mortgage and the new loan will be finished then, would I incurr penalty charges if I switched to another lender, or should I borrow the 30K from the credit union which would be over 10 years term?
Can you recommend what I should do, do you know of a lender that offer good short term interest rates.
Thankyou.

Broken said:

I have a mortgage with PTSB for approx 23K which will finish in 3 years time, my repayments are currently 470 per month. I want to borrow about 30K, would it make better financial sense to remortgage from PTSB or switch to another lender, I would like a short term loan over about 5 or 7 years so that both my current mortgage and the new loan will be finished then

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Then shop around for the best rate/deal for your circumstances.

would I incurr penalty charges if I switched to another lender

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Only if you are breaking a fixed rate agreement early.

or should I borrow the 30K from the credit union which would be over 10 years term?

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At what rate? Can't imagine that it would be cheaper than mortgage rates and you will probably have to have money on deposit/in shares while borrowing which increases the effective cost.

Can you recommend what I should do, do you know of a lender that offer good short term interest rates.

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Most lenders will allow you to pay a topup off over a shorter term than, say, decades. Shop around.