How Does a Remortgage Work? A Step-by-Step Guide

By Jigsaw on Mar 26, 2026 10:00:00 AM

If you already own a home and your mortgage deal is coming to an end, or you’re wondering whether you could get a better deal, you may be asking a simple but important question: how does a remortgage work in the UK?

For many homeowners, remortgaging feels more complex than it needs to be. There are rates to compare, fees to consider, and legal steps happening behind the scenes. This guide explains the process of remortgaging clearly and step by step, so you know what to expect and how to approach it with confidence.

What Is A Remortgage?

A remortgage is when you replace your existing mortgage with a new one, usually with a different lender, on a property you already own. You are not moving home; you are simply switching your mortgage deal.

Homeowners typically choose to remortgage a house to:

• Secure a better interest rate
• Avoid moving onto their lender’s Standard Variable Rate (SVR)
• Release equity to fund home improvements or other plans
• Consolidate existing debts
• Change the structure of their mortgage

In most cases, remortgaging is about making sure your mortgage still suits your circumstances and isn’t costing you more than it needs to.

The Process Of Remortgaging: Step By Step

1. Review Your Current Mortgage

The first step is understanding where you currently stand.

Check:

• Your current interest rate
• When your fixed or tracker deal ends
• Whether there are any Early Repayment Charges (ERCs)

ERCs apply if you leave your deal early and can sometimes outweigh any savings from switching. Knowing your end date helps you time your remortgage properly, usually around three to six months before your deal expires.

2. Research Remortgage Options

Next comes researching the market. This is where many homeowners feel overwhelmed. Rates change regularly, and lenders all assess affordability slightly differently. While comparison sites can give you a starting point, they don’t tell the full story.

A whole-of-market mortgage adviser can:

• Compare remortgage deals across multiple lenders
• Consider fees, incentives, and flexibility, not just the headline rate
• Identify lenders most likely to accept your circumstances

This ensures you’re not just finding a deal, but the right deal.

3. Check Your Credit Score

When you remortgage a house with a new lender, they will carry out a full credit check.

Before applying, it’s sensible to review your credit report to:

• Check for errors or outdated information
• Make sure your address history is correct
• Identify anything that could affect your application

A healthy credit profile can improve your chances of acceptance and help you access better rates. Checking this early avoids surprises later.

4. Gather Your Documents

Being organised at this stage can save time and stress.

Most lenders will ask for:

• Proof of ID
• Proof of income (payslips or accounts if self-employed)
• Recent bank statements
• Details of your existing mortgage

Having these ready helps your application move smoothly and reduces delays.

5. Submit Your Remortgage Application

Once a lender has been selected, your application is submitted.

At this point, the lender will:

• Carry out an affordability assessment
• Perform a hard credit check
• Arrange a valuation of your property

The valuation confirms how much your property is worth and helps the lender assess the loan-to-value (LTV). In some cases, this is done automatically; in others, a physical inspection may be required.

6. Legal Work And Solicitors

Remortgaging involves legal work, even though you’re not moving.

Your solicitor will:

• Pay off your existing mortgage
• Register the new lender’s charge on your property
• Handle communication between all parties

Many remortgage deals include free legal work or a legal fee contribution, which can significantly reduce upfront costs. Jigsaw can help you understand what’s included and ensure everything is handled correctly.

7. Completion

On completion day:

• Your new lender releases the funds
• Your old mortgage is repaid in full
• Your new mortgage officially begins

From that point, you’ll start making payments under your new deal, usually at a lower or more suitable rate.

Costs And Fees Associated With Remortgaging

While remortgaging can save money, it’s important to understand the costs involved.

These may include:

• Early Repayment Charges (ERCs) if switching before your deal ends
• Legal fees for the remortgage process
• Valuation fees, depending on the lender

Some lenders offer incentives such as:

• Free valuation
• Free legal work
• Cashback

Part of good advice is weighing these costs against the potential savings, so the remortgage genuinely makes financial sense.

Is Remortgaging Right For You?

Remortgaging isn’t just about chasing the lowest rate. It’s about making sure your mortgage still fits your life.

You might benefit from remortgaging if:

• Your deal is ending soon
• Interest rates have changed
• Your income or circumstances are different
• You want to release equity or restructure your borrowing

Understanding how the process of remortgaging works puts you in control and helps you make informed decisions.

Need Help With Your Remortgage?

You’re not expected to navigate remortgaging alone. With the right guidance, it can be a straightforward and cost-effective way to improve your mortgage position.

At Jigsaw Independent Mortgage Specialists, we compare your current lender’s offer against the wider market, explain your options in plain English, and manage the process from start to finish.

If you’re considering a remortgage or simply want to understand your options, contact us. We’ll help you move forward with clarity, confidence, and the right deal for your circumstances.

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