What does 'whole of market' mean?
A whole-of-market broker or adviser has access to the full range of products available from the relevant market — not just products from a single lender, insurer, or a limited panel of providers. In the context of mortgage brokers, it means they can compare products from every mortgage lender in the UK, including exclusive broker-only deals not available directly to the public.
The three types of broker
Tied brokers
A tied broker (or tied agent) can only offer products from a single provider — typically one bank, building society or insurer. If you go to your existing bank for a mortgage, the adviser there is effectively a tied agent — they can only offer you their employer's mortgage products, regardless of whether competitors offer better rates or terms.
Panel (multi-tied) brokers
A panel broker has access to products from a selected panel of providers — typically 10–30 lenders or insurers. This is better than a tied broker, but the panel may not include the lender that's best for your specific circumstances. Some products and lenders may be excluded.
Whole-of-market brokers
A whole-of-market broker can access products from the entire UK market. For mortgages, this includes all high street lenders, building societies, specialist lenders, and challenger banks — often including exclusive broker-only rates not available to the public or on comparison sites. This gives you the widest possible range of options.
Why whole-of-market access matters
The mortgage market has hundreds of products from dozens of lenders. Interest rates, fees, criteria, and terms all vary significantly. A lender that's perfect for one borrower's circumstances may be entirely wrong for another's. Whole-of-market access means the broker can find the most appropriate product for your specific situation — not just the best product from a limited selection.
This matters even more in specialist situations: self-employed borrowers, those with adverse credit, large loan amounts, unusual property types, or portfolio landlords all have criteria that vary dramatically between lenders. Whole-of-market access is the only way to be confident you're being shown all the available options.
Do whole-of-market brokers cost more?
No. Many whole-of-market brokers are fee-free, earning commission from the lender when your mortgage completes. The commission rates are broadly similar across lenders, so there's no financial incentive for a whole-of-market broker to recommend one lender over another. FCA regulations also require brokers to recommend the most suitable product for the client regardless of commission level.
How to confirm whole-of-market access
Ask directly: "Do you have access to the whole market, or are you limited to a panel of lenders?" A whole-of-market broker should be able to name lenders they can access and confirm they're not tied to any single provider. You can also ask to see the range of products they've sourced — a genuinely whole-of-market broker will have compared a wide range of lenders in their recommendation.
All brokers matched by Nesto are whole-of-market and FCA-regulated. That's a baseline requirement, not a premium feature.