Myth Buster: "My Own Bank Offers the Best Mortgage Deal."
- Dec 5, 2025
- 3 min read

It’s a common assumption - your own bank knows you best, so they’ll give you the best mortgage deal, right?
Not necessarily.
While it might seem logical to stay with the bank that handles your current account, loyalty doesn’t always mean the lowest rate or the best terms. In fact, sticking with one lender could mean missing out on thousands of pounds in potential savings.
At Endurance Mortgages, we help you compare deals across the whole market - not just one bank - to make sure you’re getting the right mortgage for your needs, not just the easiest one to find.
1. Why Your Own Bank Might Not Offer the Best Rate
Banks want to keep your business, but they also know many customers don’t shop around. Their “exclusive” offers are often convenient rather than competitive.
Here’s why:
Limited options: Your bank can only offer its own products, even if better deals exist elsewhere.
Rates change fast: Another lender could introduce a lower rate within days, and your bank won’t tell you.
Strict criteria: If you don’t meet your bank’s lending requirements (especially if you’re self-employed or have variable income), you might be declined unnecessarily.
Loyalty isn’t rewarded: Existing customers sometimes get offered the same or worse rates than new applicants.
In short, convenience isn’t always value - and when it comes to mortgages, every percentage point matters.
2. The Power of a Whole-of-Market Mortgage Broker
When you work with a broker like Endurance Mortgages, you’re not limited to one bank’s offers. We compare deals from a wide range of lenders, including high street names, building societies, and specialist providers.
That means we can:
Compare hundreds of products - finding the one that fits your needs, not the lender’s preferences.
Spot hidden fees or cashback traps that make some “low rates” less attractive than they look.
Negotiate on your behalf - sometimes securing deals that aren’t available directly to customers.
Save you time and stress - one application, many lenders.
3. Real-World Example: The Savings Add Up
Imagine you’re borrowing £250,000 on a 5-year fixed rate.
Your bank offers 5.2%
A specialist lender offers 4.8% through a broker
That 0.4% difference could save you over £5,000 over the fixed term - simply by comparing options.
Even a small difference in rate or fees can make a big long-term impact on your monthly payments and total cost.
4. What About Remortgaging with My Bank?
If you already have a mortgage, your bank might offer you a “product transfer” - a quick, paperwork-free switch to a new rate.
That can be convenient, but not always best value. We’ll check if staying put really makes sense - and if another lender could offer a better deal after fees.
Sometimes, switching lenders can:
Lower your rate significantly
Offer more flexible terms (like overpayments or offset features)
Give access to products that match your changing goals - for example, if you’re now self-employed or looking to borrow more.
5. How Endurance Mortgages Can Help
We’re not tied to any one bank or lender. Our priority is you.
At Endurance Mortgages, we:
Compare the whole market to find the most competitive deal available.
Explain options in plain English - no jargon, no hidden surprises.
Help with applications, valuations, and approvals from start to finish.
Regularly review your mortgage so you stay on the best deal, not just the one you started with.
You deserve a mortgage that fits your life - not one limited by your current bank’s product range.
6. Final Thoughts
Your bank might be the most familiar option, but it’s rarely the most cost-effective one. Shopping around - or working with a trusted broker - could save you thousands over your mortgage term.
Key takeaways: ✓ Your bank can only offer its own products - not the best across the market. ✓ Small differences in interest rates can lead to big savings. ✓ A broker compares multiple lenders, saving you time and money.
At Endurance Mortgages, we’ll make sure your loyalty is rewarded - by finding the best deal available, not just the one that’s easiest to take. Get in touch to find out more today!
Your Home (or property) may be repossessed if you do not keep up repayments on your mortgage or any other debts secured on it. Some Buy to Let mortgages are not regulated by the Financial Conduct Authority A fee may be charged for mortgage advice. The exact amount will depend on your circumstances.
Endurance Mortgages Ltd is an appointed representative of The Right Mortgage Ltd which is authorised and regulated by the Financial Conduct Authority. Registered in England and Wales no. 15060351. Registered Address: Worting House, Church Lane, Basingstoke, Hampshire RG23 8PX.




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