Mortgage Advice Guide

Remortgage Advice London: When to Act and What to Expect

Roger Cooper

Roger Cooper, CeMAP

15 March 2026 · 6 min read

More London homeowners will remortgage in 2026 than at almost any point in the past decade. Hundreds of thousands of fixed rate mortgages taken out during 2021 and 2022 at historically low rates are maturing, and the remortgage market is highly active. Whether your deal ends in three months or eighteen, understanding when and how to act is essential.

When to Start the Remortgage Process

Six months before your deal ends is the optimal time to begin remortgage advice. Here's why:

Most lenders allow you to lock in a rate up to 6 months before your new deal begins. This means you can secure today's rate while protecting yourself against rate rises before your completion.

If rates fall between now and your deal start date, you can — in most cases — reassess and switch to a better deal. You've gained optionality without losing the security of a locked rate.

If you wait until your deal has ended and you've rolled onto your lender's Standard Variable Rate (SVR), you're typically paying significantly more than you need to. SVRs in 2026 typically sit 1.5-2% above the best available deals.

The Remortgage Decision: Fixed or Tracker?

The fixed versus tracker decision is one of the most common questions we receive. In 2026, the key considerations are:

Fixed rates provide certainty — you know exactly what you'll pay for 2, 3, or 5 years. They're suitable if your monthly budget is tight, you value predictability, or you believe rates may rise.

Tracker rates move with the Bank of England base rate. If rates fall — which many economists forecast over 2026-2027 as inflation continues to moderate — a tracker benefits immediately. But if rates rise, your payment increases without warning.

The right choice depends on your individual circumstances, risk tolerance, and the current differential between fixed and tracker rates. As your adviser, we present both options clearly with the implications of each.

How the Remortgage Advice Process Works

1. Six months before: We review your current deal, model what's available on the market, and compare your current lender's retention offer against the full market 2. Market research: We search 90+ lenders to find the most suitable products for your loan size, LTV, and circumstances 3. Recommendation: We present you with a clear recommendation — product, total cost, and the reasoning behind it 4. Application: If you're switching lenders, we submit the application. The process is similar to a purchase mortgage but typically faster — no chain, no survey in most cases 5. Completion: Your new mortgage begins on the date your old deal ends — with no gap in between

A same-lender rate switch (product transfer) is typically faster — sometimes completed within days — though it means you only access your current lender's deals.

Should I Switch Lenders or Stay Put?

Your current lender will typically write to you 3-6 months before your deal ends with their retention offers. This is convenient — no new application, no credit check, no legal costs.

However, the convenience is the lender's friend, not yours. Retention rates are sometimes competitive but often are not. The only way to know is to compare them against the full market.

Our analysis consistently shows that switching lenders delivers a better outcome for a significant proportion of remortgage clients, even after accounting for any arrangement fees. The savings over a 2-5 year fixed term can run to thousands of pounds.

London-Specific Remortgage Considerations

Equity positions: London homeowners who bought in 2015-2021 typically have substantial equity due to price appreciation. This can move them into lower LTV brackets (e.g., from 75% LTV to 60% LTV), which unlocks significantly better rates. We calculate your current LTV before researching.

Leasehold issues: If the lease on your London flat has shortened since purchase, it could affect lender choice at remortgage. Leases falling below 85-90 years can restrict options. We check this early.

Further advance: If you want to borrow additional money — for home improvements, to purchase a second property, or for other purposes — we can arrange this simultaneously with a remortgage.

What Remortgage Costs Are Involved?

Typical remortgage costs when switching lenders: - Product/arrangement fee: £0-£2,000 depending on deal (some are fee-free) - Legal fees: Often free as part of a remortgage deal (lenders offer a free legal service) - Valuation fee: Often free as part of a remortgage deal - Early repayment charge: If leaving your current lender before your deal ends

We calculate the total cost of each option — including fees — so you compare like with like, not just headline rates.

Your home may be repossessed if you do not keep up repayments on your mortgage.

Roger Cooper

Roger Cooper

CeMAP Qualified Mortgage Adviser | FCA Regulated

Roger has over 15 years of experience as an independent mortgage adviser in London. CeMAP qualified and FCA regulated, he specialises in complex cases including self-employed applicants, portfolio landlords, expat mortgages and high-value London purchases.

Frequently Asked Questions

How early can I remortgage before my current deal ends?
Most lenders allow you to lock in a remortgage rate up to 6 months before your deal ends. You can apply earlier, but the new rate won't start until your current deal ends. Starting 6 months early is optimal — you secure a rate while retaining the option to reassess if better deals emerge.
Will I pay an early repayment charge if I remortgage?
If you remortgage before your current fixed or tracker deal ends, your lender will typically charge an early repayment charge (ERC) — usually 1-5% of the outstanding loan. We calculate whether the ERC is worth paying based on the rate saving. In most cases, it's better to wait until the deal ends.
Can I borrow more when I remortgage my London property?
Yes — a further advance or equity release can be arranged simultaneously with a remortgage. We assess how much additional borrowing is affordable and appropriate based on your income and circumstances, and compare the rate on the additional borrowing across the market.
How long does a remortgage take in London?
A like-for-like remortgage with a new lender typically takes 4-8 weeks from application to completion. A product transfer with your existing lender can be completed within days. We manage the timeline to ensure completion occurs before your existing deal ends to avoid any period on SVR.

Important: Your home may be repossessed if you do not keep up repayments on your mortgage. The information in this article is for general guidance only and does not constitute regulated mortgage advice. Please speak to a qualified adviser before making any mortgage decisions.

Need personalised mortgage advice?

Speak to Roger directly — free initial consultation, no obligation.