Remortgaging: What Is Remortgaging and How Does It Work?

Switching Your Mortgage, Explained Simply

If your mortgage deal is coming to an end, you may have heard the word "remortgaging" and wondered what it actually involves. In simple terms, it means swapping your current mortgage for a new one on the same home. You are not moving house and you are not starting again from scratch. You are changing the deal attached to the property you already own.

Below, we walk through what happens, how long it takes, what it costs and what to watch out for - in plain English, with no assumptions about what you already know.

Is This Guide Relevant To You?

This guide is for UK homeowners with an existing mortgage, particularly anyone whose fixed or introductory rate is due to end in the next year. It will also help if you are thinking about changing your mortgage term, borrowing more against your home, or simply want to understand your options before committing to anything.

What Remortgaging Actually Means

Remortgaging means replacing your current mortgage deal with a new one, either with your existing lender or with a different one. The home stays the same. The debt stays secured against that home. What changes is the product: the interest rate, the term, sometimes the amount, and often the lender.

Most people do this because their fixed or introductory rate is ending. When a deal expires, lenders usually move you onto their standard variable rate (SVR), which is typically higher than a promotional rate. Remortgaging is the way to avoid that jump.

It is worth separating two ideas that often get bundled together. A straight remortgage is moving your existing balance to a new deal. Additional borrowing is taking more money out against your property, perhaps for home improvements. Some lenders, including Barclays, treat these as different things, and the extra borrowing can change affordability checks, the rate offered and the overall size of your loan.

Remortgaging is not moving home, and it is not automatically extra borrowing. It is a new deal on the same property.

How The Process Works, Step By Step

The process usually begins with research: comparing what your current lender will offer against deals available elsewhere. Once you choose a direction, you would typically get an Agreement in Principle or similar initial check, then submit a full application with proof of income, spending and identity.

The lender will then assess affordability and credit, and arrange a valuation of your property to confirm what it is worth. If everything stacks up, a formal mortgage offer is issued.

Where a new lender is involved, legal work follows. A solicitor or conveyancer requests a redemption statement from your existing lender - the exact amount needed to close the old account. On completion, the new lender releases the funds, the solicitor repays the old mortgage in full, and the new lender's interest is registered with the Land Registry. That registration is what formally transfers the security from one lender to the other.

If you stay with your existing lender, this is often simpler. The property and mortgage remain in place; only the product changes, so legal work is usually reduced or removed entirely.

Most remortgages take several weeks rather than days, with guidance commonly pointing to around four to eight weeks.

Why Homeowners Choose To Remortgage

The most common reason is cost. Rolling onto a standard variable rate can noticeably increase monthly payments, so switching to a new product can bring those payments back under control. Because lenders usually write to you before your current deal ends, many people use that letter as their prompt to start looking.

Beyond rate savings, remortgaging can be a genuine planning tool. Some borrowers extend their term to lower monthly payments, while others shorten it to clear the debt sooner and pay less interest overall. Some switch from variable to fixed for predictability, particularly if a stable payment matters more than chasing the lowest possible rate.

Others remortgage to release equity - borrowing a little more against the value of the property to fund home improvements, consolidate other debts, or cover a major cost. That can be sensible, but it increases the amount secured against your home, and affordability checks still apply. The key point is that remortgaging is a decision about total cost and circumstances, not just a headline percentage.

Weighing The Benefits Against The Drawbacks

Potential benefits	Potential drawbacks
Can avoid rolling onto a higher standard variable rate	Fees can eat into or wipe out the savings
Access to a wider range of deals across many lenders	Early repayment charges may apply if you leave a deal early
Option to change the term to suit your budget	Requires fresh affordability and credit checks
Can fix payments for a set period for more certainty	Typically takes four to eight weeks, so needs planning
Possible to release equity for home improvements	Extra borrowing increases the debt secured on your home
Staying with your current lender can be quick and low-cost	A lower rate does not always mean a cheaper overall mortgage
Chance to review whether your mortgage still fits your life	A down valuation could affect the deals available to you

Costs And Catches Worth Checking First

The biggest mistake is comparing interest rates alone. Remortgaging can involve valuation fees, legal or conveyancing fees, product arrangement or booking fees, broker fees and, importantly, early repayment charges if you leave your current deal before it ends. Those charges can be a percentage of your outstanding balance, so they are rarely small.

Also check any exit or deeds release fee on your existing mortgage, and look at whether a fee is added to the loan rather than paid upfront - adding it means paying interest on it for years.

Timing matters too. Because the process usually runs to several weeks, starting three to six months before your deal ends gives you room for a valuation, missing paperwork or solicitor delays without slipping onto the SVR by default.

Always compare the total cost over the deal period, not just the monthly payment or the headline rate.

Finally, be realistic about affordability. Your income, spending, credit file and property value will all be reassessed, and circumstances that have changed since your last application can affect what you are offered.

Other Routes You Could Consider

1. A product transfer with your current lender. Switching to a new deal with your existing provider often involves less paperwork, fewer fees and no legal work, though your choice is limited to that lender's range.
2. Doing nothing and accepting the SVR. Rarely the cheapest option, but it can suit someone planning to sell or repay in the very near future, as SVRs usually have no early repayment charges.
3. A further advance from your existing lender. If you need extra money, borrowing more on top of your current mortgage may be simpler than a full remortgage, and can keep your existing rate intact on the original balance.
4. A second charge or secured loan. This sits alongside your existing mortgage rather than replacing it, which can be useful if leaving your current deal would trigger a large early repayment charge.
5. An unsecured personal loan. For smaller amounts over a shorter period, borrowing without securing it against your home may cost less overall and avoids putting the property at risk.
6. Overpaying your current mortgage. If your goal is to reduce interest rather than lower payments, using permitted overpayments can shorten the term without any switching costs.
7. Speaking to a whole-of-market broker. Not an alternative to borrowing as such, but a way to see the realistic options side by side before you commit to any of them.

Common Questions About Remortgaging

Is remortgaging the same as moving house? No. You stay in the same property. Only the mortgage deal changes, which is why it is often described as switching rather than buying.

When should I start looking? Many people begin three to six months before their current deal ends. Since the process typically takes four to eight weeks, early planning helps you avoid the standard variable rate.

Do I need a solicitor? Usually yes if you are moving to a new lender, because the old mortgage must be redeemed and the new lender registered with the Land Registry. If you stay with your existing lender, legal work is often not required.

Will remortgaging affect my credit score? A full application involves a credit check, which may have a short-term effect. Lenders will also look at your wider credit history when assessing affordability.

Can I remortgage to borrow more? Often yes, but extra borrowing is treated differently from a straight remortgage. Expect closer affordability scrutiny and remember the additional amount is secured against your home.

What if my property has fallen in value? A lower valuation increases your loan-to-value ratio, which can limit the deals available. It does not automatically prevent a remortgage, but it may affect the rate.

Can I remortgage with bad credit? It may be possible, though your choice of lenders and rates is likely to be narrower. Specialist lenders exist for exactly these situations.

Where Kandoo Fits In

Kandoo is a UK finance broker, which means our job is to help you see your options clearly rather than push you towards one product. We can talk through what you are trying to achieve - lower payments, a shorter term, or raising funds - and help you compare the routes available, including secured and unsecured borrowing where a full remortgage may not be the best fit. There is no pressure and no obligation, just clear information so the decision stays yours.

Important Information

This article is general information only and is not financial, mortgage or legal advice. Rates, fees, criteria and timescales vary by lender and can change. Your home may be repossessed if you do not keep up repayments on a mortgage or any debt secured against it. Always seek regulated, personalised advice before acting, and check the full terms of any product you are considering.