I agree fixing for at least 5 years is the best option.
• check if it's portable. (You can move it to a new property, but you still have to have mortgage checks etc) without having to pay any ERP (Early Repayment Fees)
•. Check your ERP, they'll give you a chart of the costs.
• check if you can over pay & how much without penalties.
these might not seem important now, but 5 years is a longtime.
I was undecided when mine came up for renewal (I usually fix for 2 years) because I might have to sell to go overseas & either rent or sell. Renting I can do, but I can't make any changes to my mortgage & it goes to SVR at the end of the fix (plus 1%), so I was very tempted to fix at 10 years, but it's a hefty ERP for the first 6 years. 2 years was just too much uncertainty this time.
I figured that at WORST. I'd be 'over paying' by 2.48% (5 year fix rate a few months ago) & interest rates are NOT likely to go to anywhere near 0% in 5 years, so somewhere up to that %.
whereas interest rates ARE likely to go up a lot more.
IF going overseas (for family reasons) wasn't something I need to keep in mind, I'd have fixed for 10 years.
gutted I didn't do that 4, or even 2, years ago when rates were much lower, but you know, you live & you learn!!
enjoy your first house!! 😊