I started to flick through the thread,but kind of gave up - for various reasons!
OP - the main thing that struck me, from your very first post, was that you’d been in touch with your broker as your current fix is about to expire.
My question is - how far from expiry are you? Is it six months or one month?
I just want to make sure people know that, with their current lender, you can lock in a new deal six months before your current fix ends.
So, best course of action is to do that asap. It is VERY likely that your lender will allow you to cancel that deal and sort a new one if rates drop in the meantime before your new fix starts - do make sure you check this beforehand. By booking a new deal six months in advance, with your current lender, you have secured the “worst case scenario” option.
Once you’ve done the above, do a quick check every week. Both with your current lender and comparison sites. Use the same criteria (house value, balance outstanding etc) to get comparable results.
Ive had a mortgage for a while now - and have extended for various reasons. When it’s come to renewing my fix, I have used the comparison sites. Generally, there have been options where I could have shaved a fraction of a % off the rate by choosing another lender. But, this would also mean full financial checks and a valuation. Staying with your current lender avoids this and, for me, it’s not been worth it.
I think brokers are a good service as a FTB. Am not convinced of their value after that if you are intending to stay in the same property.
If you are looking to change lender/extend the term etc. Look at the terms re overpayments. Some lenders only allow you to overpay annually by 10% of the CURRENT mortgage balance. Others allow you to overpay annually by 10% of the ORIGINAL loan amount. I completely get that overpaying is not possible for everyone, but if you are able to then the latter option is way better.
To finish, my main message is, if you have a fix coming to and end in six months - book the best deal you can with your CURRENT lender. This is then your worst-case scenario sorted. If things improve, you should be able to change. If things get worse, then you’ve beaten that situation.
oh, and my last point is - I would be avoiding the less well-known or obscure lenders at this point. Am probably being over-cautious, but having seen the collapse of most of the utility companies, I prefer feeling a bit safer by being with a more well-known lender.