How to Remortgage: A Complete Guide

Remortgaging simply means replacing your current mortgage with a new one, either with your existing lender or a different one. Done at the right moment, it can save thousands over a couple of years. Left too late, you drift onto your lender’s standard variable rate, which is almost always far more expensive than a negotiated deal.

This guide covers when to remortgage, how the process runs, the difference between a product transfer and a full switch, and the costs to weigh up. Vetted Wealth matches you with independently vetted, FCA-regulated advisers, what follows is information to help you plan, not personal advice.

Why and when to remortgage

The most common reason to remortgage is that a fixed or tracker deal is ending. When it does, you roll onto the lender’s standard variable rate (SVR): a rate the lender sets at its own discretion, typically several percentage points above the best available deals. On a £200,000 balance, the gap between an SVR and a fresh fixed rate can easily run to a few hundred pounds a month.

Other triggers include wanting payment certainty by moving from a tracker to a fix, freeing up cash by extending the term, or releasing equity for home improvements. The key is timing: start looking three to six months before your current deal ends, because a new offer can usually be held for up to six months.

To see why the timing matters so much in cash terms, consider a homeowner with £200,000 outstanding. The gap between a competitive fixed rate and a typical standard variable rate can easily be two or three percentage points. On £200,000 that is £4,000–£6,000 of extra interest a year, several hundred pounds every month, for doing nothing more than missing a deadline. Framed that way, remortgaging on time is one of the highest-value hours of admin in most people’s financial lives.

Product transfer or new lender?

You have two broad routes. A product transfer keeps you with your current lender on a new rate, quick, light on paperwork, and usually with no new valuation or legal work. A full remortgage moves you to a different lender, which can secure a sharper rate but involves a fresh application, affordability check and conveyancing.

Loyalty rarely pays by default here. It is worth comparing your existing lender’s transfer offer against the wider market before deciding: the difference over a two- or five-year term can be substantial. The mechanics overlap heavily with a first purchase, so our guide on how to get a mortgage in the UK is a helpful primer on the affordability side.

A product transfer wins on speed and certainty: because there is often no new affordability check, it can be a lifeline if your income has dipped or your credit file has taken a knock, since a fresh lender might decline you outright. A full remortgage wins on choice, and on the ability to change the loan itself, borrowing more, shortening or lengthening the term, or adding or removing a borrower. The right answer depends less on brand loyalty than on which of those levers you actually need to pull.

How the remortgage process works

1. Note your deal end date

   Find when your current rate expires and any early repayment charge that applies before then. This sets your window.

2. Check your current balance and home value

   Your loan-to-value drives the rates you qualify for. A home that has risen in value can push you into a cheaper band.

3. Compare the market

   Weigh your lender’s product transfer against new-lender deals, factoring in fees, not just the headline rate.

4. Apply and get an offer

   A new lender assesses affordability and values the property; a product transfer is usually far lighter.

5. Complete on the switch

   The new loan pays off the old one, ideally the day your existing deal ends, so you never touch the SVR.

Timing matters more than most people expect. If you want a sense of how long each stage takes, our answer on how long it takes to get a mortgage applies to remortgages too: a product transfer can complete in days, while a full switch typically takes a few weeks.

The costs and charges to check

A lower interest rate is only worth having once you have netted off the costs of getting it. The main ones are the arrangement fee, any early repayment charge on your existing deal, and for a full remortgage, valuation and legal work, which lenders often cover as part of a remortgage package.

A headline rate with a large fee can work out dearer than a slightly higher rate with no fee, especially on smaller balances. The right comparison is the total cost over the deal period, not the rate in isolation: a point a good adviser will model for you. As a rough guide, a large arrangement fee is easier to justify on a big balance, where a lower rate saves more, and harder to justify on a small one, where a fee-free deal at a slightly higher rate often wins.

Remortgaging to release equity

If your property has grown in value or you have paid down a chunk of the balance, you can remortgage for more than you owe and take the difference as cash. People do this for renovations, to consolidate more expensive debt, or to help family. Because you are borrowing more, the lender reassesses affordability and your monthly payment rises.

Releasing equity by remortgaging is different from equity release, which is aimed at older homeowners and works on very different terms. If you are over 55 and weighing the two, it is worth understanding both routes before deciding, and remembering that consolidating short-term debt into a long-term mortgage can cost more in total interest even if the monthly figure falls.

Lenders also cap how much equity you can release, usually via the loan-to-value limits for your circumstances, and they will ask what the money is for. Home improvements and debt consolidation are routinely accepted; some purposes, such as investing the cash or gifting a large sum, receive more scrutiny. Because you are turning secured borrowing into a longer commitment, it is worth being honest with yourself about whether the spending is an investment in the property or simply moving a problem further down the road.

When your circumstances have changed

A remortgage is also a natural moment to reshape the loan around your life. If your income has fallen, you have taken a career break, or you have become self-employed since you last applied, a new lender will re-run affordability from scratch, and you may find your existing lender’s product transfer is the more comfortable route because it often skips a fresh affordability test. Conversely, if your income has grown or your home has jumped in value, you may qualify for a materially better band than before.

Other life events matter too. Separating couples often need to remove a name from the mortgage, which requires the remaining borrower to prove they can afford the loan alone. Growing families sometimes extend the term to ease monthly pressure, while those approaching retirement may want to shorten it or clear the balance. Each of these is achievable, but each interacts with affordability rules, so it pays to map the change before you apply rather than discover a constraint midway through.

Broker or direct?

You can remortgage directly with a lender or through a broker. Going direct can suit a simple product transfer where you already know you are staying put. But a whole-of-market broker sees deals across dozens of lenders, knows which ones are lenient on your particular circumstances, and does the legwork of the application. For anything beyond a straightforward like-for-like switch, the time saved and the sharper deal often more than cover any fee.

If you are weighing up the cost of advice against doing it yourself, our guide on how to choose a financial adviser sets out what a good one should offer. Many mortgage brokers are paid a commission by the lender rather than charging you directly, so it is always worth asking how a broker is remunerated before you engage them.

Common mistakes to avoid

• Doing nothing and sliding onto the standard variable rate.
• Chasing a low rate without checking the arrangement fee.
• Forgetting an early repayment charge still applies to your current deal.
• Assuming your existing lender’s transfer offer is automatically the best.
• Adding fees to the loan and paying interest on them for years.

A whole-of-market adviser can compare your lender’s offer against everything else and handle the paperwork. You can find a regulated mortgage adviser in Cornwall or elsewhere through the vetted network: the matching service itself is free to use.

Common questions on mortgages