To choose a mortgage broker in London well, verify three things before you commit. First, confirm the firm is authorised by the Financial Conduct Authority by searching the FCA Register at register.fca.org.uk, and check the phone number and website on the register match what the broker has given you — this protects you from cloned firm scams. Second, confirm the broker is whole of market, not restricted to a small lender panel, and get their fee structure in writing. Third, ask whether they have recent experience with cases like yours, particularly if your income includes bonuses, Restricted Stock Units (RSUs), or non-UK earnings, or if you are buying a leasehold flat requiring External Wall System certification (EWS1) or a higher-value property. A London-specific guide follows.
Choosing a mortgage broker is one of the most consequential decisions in any London property transaction. The right broker finds you the right deal, manages the process efficiently, and handles complications before they become problems. The wrong choice can cost time, money, or both.
London’s buyer population includes City professionals with significant variable pay, international purchasers subject to the 2% non-resident stamp duty surcharge, leasehold flat buyers navigating cladding and EWS1 requirements and ground rent reform, shared ownership applicants, and those with more complex borrowing requirements. A broker with London experience will often understand how these factors can affect lender selection and application strategy. For an overview of our London mortgage services, see our London mortgage service page.
Choosing a Mortgage Broker in London: At a Glance
Check they are FCA-regulated and verify on the FCA Register, including a cloned firm check against the phone number and website listed on the register. Ask whether they are whole of market or work from a restricted panel. Get their fee structure in writing before you commit. Confirm they have experience with your specific situation. Look for genuine London market knowledge, particularly around complex income structures, leasehold flat issues, EWS1 cladding, international buyers, and higher-value lending. Read recent client reviews critically. Ask who will handle your case day to day.
What Does a Mortgage Broker Actually Do?
A mortgage broker acts as an intermediary between you and the lenders. Their job is to assess your financial situation, identify which lenders are most likely to approve your application on the best available terms, and manage the application through to completion.
The value of a broker depends on the complexity of your situation. If you are employed full-time on a straightforward salary with a healthy deposit, most competent brokers will get you a good deal. Where brokers earn their fee is in the cases that are not straightforward: bonus income, Restricted Stock Units (RSUs) and other equity compensation, self-employed income, company director structures, non-UK income or residence status, higher-value lending, leasehold flats requiring External Wall System (EWS1) certification, or lender criteria that varies in ways you would not find on a comparison site.
In London, that complexity appears more often than in most other UK markets. Higher borrowing requirements, the prevalence of leasehold flats, and a buyer population that includes City professionals, international purchasers, and buyers needing specialist lenders all mean that lender selection and income presentation matter more. Many borrowers prefer independent whole-of-market advice because it can provide broader lender access and greater flexibility than working with a restricted panel.
Seven Things to Check Before You Instruct a Broker
1. Are They FCA-Regulated and Experienced in London?
Every mortgage broker operating in the UK must be authorised and regulated by the Financial Conduct Authority, either directly or as an appointed representative of a regulated network. You can verify any broker’s regulatory status on the FCA Register at register.fca.org.uk. Search by the firm’s name or registration number. Confirm the firm is authorised and that its permissions include advising on and arranging regulated mortgage contracts. If a broker cannot give you their FCA registration number, or if their firm does not appear on the register, do not proceed.
A broker with London experience will often understand how local property characteristics can affect lending decisions, particularly around leasehold structures, EWS1 certification, higher-value transactions, and the income profiles common among London buyers. It is reasonable to ask directly how often they handle cases like yours.
2. Are They Whole of Market or Restricted?
A whole-of-market broker can search across the full range of available lenders and products. A restricted broker can only recommend products from a limited set of lenders. Both models can work, but you need to know which you are getting. If a broker is restricted, ask which lenders they cover and whether there are significant lenders they cannot access.
Many borrowers prefer independent whole-of-market advice because it can provide broader lender access and greater flexibility. In London, where some buyers need lenders with specific criteria for variable pay, foreign income, higher loan sizes, or leasehold flats with EWS1 or short-lease issues, the breadth of a broker’s lender access can be particularly relevant.
3. What Do They Charge, and How Are They Paid?
Mortgage brokers are typically paid in one of three ways: a fee charged to the client, a commission (procuration fee) paid by the lender, or a combination of both. Before you instruct a broker, you should receive a clear written explanation of their fee structure, including when fees are payable and whether any part is non-refundable. If a broker is vague about costs, that is a warning sign.
Be cautious about assuming that “fee-free” always means cheapest. A broker who charges a fee but places you with a lender offering a lower overall cost may save you considerably more than the fee itself over the mortgage term. At London loan sizes, the total cost of the mortgage — rate, product fees, and broker fee combined — matters more than the broker fee alone.
4. Do They Have Experience With Your Situation?
Mortgage advice is not one-size-fits-all. A broker who is excellent at straightforward residential mortgages may struggle with bonus income, RSUs, self-employed income, buy-to-let portfolios, bridging finance, or higher-value transactions. Ask the broker directly whether they have recent experience with cases similar to yours.
This is particularly relevant in London. The city’s employment profile means many buyers have income structures that require specialist knowledge:
City and Canary Wharf professionals. Bonus income, Restricted Stock Units (RSUs), deferred compensation, and carried interest (common in private equity and hedge funds) are routine in London but treated differently by different lenders. Some lenders take the most recent bonus in full; others average over two or three years. RSUs at vest are recognised as income by some lenders and excluded by others. A broker who regularly packages these structures may identify lender options or presentation approaches that differ from standard cases.
Self-employed and company director borrowers. Salary plus dividends is the standard assessment, but some lenders will also consider retained profits within the company, which can significantly increase borrowing power at London price points. Contractors on day rates can be assessed on the contract value rather than requiring two to three years of accounts by lenders with appropriate criteria.
International buyers and non-UK residents. Non-UK tax residence, foreign-currency income, Skilled Worker visa status, and the 2% non-resident SDLT surcharge are common considerations on London transactions. The pool of lenders narrows considerably for non-UK residents, and specialist sourcing is often required.
Leasehold flat buyers. The majority of London transactions involve leasehold property. Short leases, high ground rents, and EWS1 (External Wall System) certification requirements for taller buildings all affect lender willingness. RICS published updated EWS1 valuation guidance in May 2026, effective from November 2026, which is recalibrating lender expectations. A broker experienced with London leasehold issues will know which lenders are currently flexible on each point.
5. Do They Understand the London Market?
Local knowledge can be valuable, particularly where property type or transaction structure creates additional complexity. A broker with London experience may have a sense of which solicitors handle London transactions efficiently, which lenders are currently processing cases faster, and what to expect on valuations and leasehold enquiries.
London-specific issues that can affect mortgage applications include:
Stamp duty at London price points. Many London first-time buyers exceed the £300,000 nil-rate band, and some exceed the £500,000 ceiling at which first-time buyer relief is lost entirely. Understanding the stamp duty figure early helps with budgeting and offer strategy. For worked examples at London price points, see our London stamp duty guide.
Leasehold and EWS1 issues. Lease length under 80 years, high ground rents, and EWS1 cladding certificates are recurring mortgage blockers in the London flat market. A broker who has dealt with these locally will know which lenders are flexible and where a transaction may need to be restructured.
Shared ownership. Shared ownership in London operates under a household income cap set by government, and lenders specialising in the scheme in London are a relatively narrow pool. The scheme remains a primary route into homeownership for many London buyers. For a full explanation of how shared ownership mortgages work at London price points, see our London shared ownership guide.
The 2% non-resident SDLT surcharge. Where the buyer has not been UK-resident for at least 183 days in the preceding 12 months, a 2% surcharge applies on top of standard rates (HMRC). London sees more affected transactions than anywhere else in the UK.
6. What Do Their Clients Say?
Client reviews are useful, but only if you read them critically. Look for reviews that describe specific outcomes: the broker found a solution to a problem, the process was well managed, communication was proactive. Be sceptical of reviews that are vague or that all appeared on the same date.
Check the broker’s Google Business profile and read recent reviews, paying attention to recency, specificity, and how the firm responds to any negative feedback. Industry recognition from independently judged awards can also be a useful signal of operational quality.
7. Who Will Actually Handle Your Case?
This is often overlooked. Ask who will be your main point of contact throughout the application. The best outcomes tend to come from brokers where the adviser who assesses your situation is also the person who manages the application, communicates with the lender, and handles any issues that arise. Continuity of contact reduces errors and improves communication, particularly for cases involving complex income or property structures.
Types of Mortgage Broker in London
London buyers will encounter several different types of broker. The best choice depends on the complexity of your situation, your loan size, and how hands-on you want the service to be. Whatever route you take, always verify FCA authorisation and lender access directly before instructing.
| Type of broker | Often suited to | What to verify |
| Independent, whole-of-market broker with a London office | Complex income, higher-value purchases, leasehold and EWS1 issues, in-person meetings, ongoing relationship | Whole-of-market access, FCA authorisation, fee structure in writing, who personally handles your file |
| National fee-free broker | Straightforward residential cases, lower-complexity remortgages, fee-conscious borrowers | Lender panel scope, case handler continuity, experience with non-standard income or property |
| Large national independent broker | Mid-to-higher complexity cases, broad lender access | Local market experience, who personally handles your file, fee structure |
| Direct to a lender | Existing customer with simple circumstances, product transfers | Single-lender perspective only — no comparison across the wider market |
Fitch & Fitch sits in the first category. We are independent and whole of market, FCA-authorised, with offices in Canary Wharf, Cambridge and Colchester, and we offer a specialist service for higher-value and complex London cases. London meetings are available by appointment.
Questions to Ask a Mortgage Broker Before You Commit
These practical questions will help you distinguish a good broker from an adequate one:
“Are you whole of market, or do you work from a restricted panel?” This establishes the scope of advice you will receive.
“What are your fees, when are they payable, and is any part non-refundable?” Get this in writing before you proceed.
“Have you handled cases like mine recently?” Be specific: bonus or RSU income, self-employed, complex income, leasehold flat with EWS1 or short lease, international buyer, higher-value purchase.
“Who will handle my application day to day?” You want to know who your point of contact will be throughout.
“Can you give me an example of a London case you have handled recently?” A broker with genuine London experience should be able to describe recent transactions without hesitation.
How to Verify a Broker’s Credentials
Before instructing any broker, take five minutes to verify the basics:
FCA Register. Search at register.fca.org.uk for the firm name or number. Confirm they are authorised and their permissions include advising on and arranging regulated mortgage contracts. If the broker is an appointed representative, confirm the principal firm is also authorised — Fitch & Fitch, for example, is an appointed representative of JLM Mortgage Network.
Cloned firm check. A cloned firm impersonates a legitimate authorised broker using a near-identical name or website. The FCA Register shows official contact details for every authorised firm. Cross-check the phone number, website, and email address the broker has provided against the register. If they do not match, do not proceed. The FCA publishes specific cloned firm warnings on its website — search the firm name there before transferring any money.
Google reviews and Trustpilot. Look at the number of reviews, their recency, and their specificity. Pay attention to how the firm handles any negative feedback.
Company information. A legitimate broker will have a registered office, a clear website, published terms of business, and named individuals.
Industry awards. Shortlisted and winning firms can usually be verified on the relevant awards provider’s website.
What to Expect Once You Instruct a Broker
A good broker will typically follow a clear process:
Initial consultation. A detailed conversation about your financial situation, objectives, and timeline. This should feel thorough, not rushed.
Research and recommendation. The broker searches the market, identifies suitable products, and explains why they are recommending a particular lender and deal.
Application management. The broker prepares and submits the application, liaising with the lender, solicitor, and estate agent as needed.
Ongoing communication. You should receive regular updates on progress, and the broker should proactively flag any issues or delays.
Completion and beyond. The broker ensures everything is in place for exchange and completion. A good broker will also contact you before your deal expires to discuss options.
Why We Wrote This Guide
Fitch & Fitch is an independent, whole-of-market mortgage broker with offices in Canary Wharf, Cambridge, and Colchester. We are an appointed representative of JLM Mortgage Network, authorised and regulated by the Financial Conduct Authority (FCA Registration Numbers 955014 and 300629). You can verify this on the FCA Register at register.fca.org.uk.
Fitch & Fitch has received recognition from independent industry bodies including the Mortgage Strategy Awards, Mortgage Introducer Awards, and Legal & General Mortgage Club Awards. These awards are judged independently and can be verified on the respective awards websites.
Our London office is in Canary Wharf, and meetings are available by appointment. Our team advises across all London boroughs on everything from first-time buyer mortgages and remortgages to self-employed lending, buy-to-let portfolios, leasehold flat purchases including EWS1 cases, international buyer transactions, bridging finance, and higher-value transactions. London’s higher-value market and its concentration of professional and international borrowers mean that complex cases are a significant part of our London workload.
We wrote this guide because we believe an informed borrower makes better decisions. For further information about our approach and London mortgage services, visit our London hub page.
Frequently Asked Questions
Do I need a whole-of-market mortgage broker in London?
You are not required to use a whole-of-market broker, but many London buyers find that broader lender access makes a material difference. A whole-of-market broker can search across the full range of lenders, including those that do not appear on standard comparison sites. For buyers with variable pay, complex income, leasehold flat issues, international residence status, or higher borrowing requirements, the ability to access specialist and private bank lenders alongside mainstream options can change the outcome. A restricted broker — one limited to a panel of lenders — may still deliver a good result for straightforward cases, but it is worth confirming the scope of advice before you commit.
How much does a mortgage broker charge in London?
Fees vary between firms. Some brokers charge a fixed fee, others charge a percentage of the loan, and some are paid entirely by lender commission. There is no standard fee. Always ask for a written fee schedule before you instruct a broker. At London loan sizes, the total cost of the mortgage — rate, product fees, and broker fee combined — matters more than the broker fee alone.
Is it worth using a mortgage broker in London?
For most London buyers, yes. The combination of higher loan sizes, the prevalence of bonus, RSU and self-employed income, the £500,000 first-time buyer stamp duty relief ceiling, leasehold and EWS1 complexity, the 2% non-resident surcharge, and a wider lender pool for higher-value purchases all make London cases more complex than the UK average. A broker with whole-of-market access and London experience can often produce a meaningfully better outcome than going directly to a lender.
Should I use a mortgage broker or go directly to a lender?
A broker can compare lender criteria and products across the market, including options that may not be obvious from headline comparison tables. They also manage the application process, which saves time and reduces the risk of errors. For straightforward cases, the cost difference may be small. For anything complex — and in London many cases involve variable pay, leasehold or EWS1 issues, international residence, or higher-value lending — a broker is usually the better choice.
What is the difference between a mortgage broker and a mortgage adviser?
In practice, the terms are used interchangeably. Both refer to a professional who advises on and arranges mortgages. The key distinction is between “independent” (whole of market) and “restricted” (limited panel) advisers.
How do I avoid a cloned mortgage firm?
Search the firm name on the FCA Register at register.fca.org.uk. Cross-check the phone number, website, and email on the register against the contact details the broker has given you. If they do not match, do not proceed. The FCA publishes specific cloned firm warnings on its website. Never transfer money to a broker without confirming bank account details by phone using a number from the FCA Register or the firm’s verified website.
What if I have already been declined by a lender?
A decline from one lender does not mean you cannot get a mortgage. Different lenders have different criteria, and a broker with whole-of-market access can often find a suitable lender for cases declined elsewhere. In London, declines often result from income structures (bonuses, RSUs, dividends, foreign currency) or property-specific issues (EWS1, short lease, ground rent) rather than fundamental affordability problems.
Next Steps
Once you have a clearer idea of the area, budget, or type of property that may suit you, the next step is understanding how this fits with your borrowing position and the wider cost of buying. For further information about our mortgage services and approach, visit our London hub page.
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