Coventry

The UK mortgage market is dominated by a handful of large banks and building societies (the "Big Six" or so), which handle the vast majority of lending. These are the lenders most people actually use, based on gross lending volumes and outstanding balances. Customer satisfaction, rate competitiveness, and service vary, with building societies often scoring highly in surveys like Which?.

Recent data (2024–2025 lending figures, with trends into 2026) shows the top lenders by market share include:

• Lloyds Banking Group (Lloyds Bank and Halifax) — consistently the largest or near-largest by gross lending (around 19% share in 2024 data).
• Nationwide Building Society — very close behind or second, with strong growth and the largest building society presence.
• NatWest Group, Barclays, HSBC, and Santander UK — rounding out the major players (typically 6–11% shares each).

Smaller or specialist lenders (e.g., Coventry, Yorkshire, Leeds, or Principality building societies) appear in competitive deals and awards but have lower overall volume.

Top Recommendations by Popularity and Customer Feedback

These stand out for a combination of high usage (market share) and strong reviews/satisfaction from sources like Which? customer surveys (2025 data), Moneyfacts awards shortlists, and deal comparisons (as of early September 2026).

• Nationwide Building Society: Frequently tops customer satisfaction tables (80% score in Which? surveys, joint highest) and is the only lender named a Which? Recommended Provider in recent analysis for balancing high satisfaction with competitive rates across borrower types. Excellent for clarity of statements, online access, and first-time buyers/home movers. Strong market presence makes it a go-to for many.

• HSBC (and first direct): HSBC has grown its market share modestly and often features in top rate tables and awards shortlists (e.g., best fixed-rate or remortgage categories). first direct (its digital arm) regularly ranks among the cheapest for typical borrowers in Which? analyses and scores well for service. Good for competitive rates and digital users.

• Barclays: Strong performer among the big banks in customer scores (around 75% in Which? data) and frequently shortlisted for fixed-rate, variable, and remortgage awards. Competitive on deals and service feedback.

• Santander UK: Significant market share with notable lending growth in recent years; often appears in best-deal tables (e.g., 2-year and 5-year fixes) and awards shortlists. Solid all-rounder for many borrowers.

• Lloyds Bank / Halifax: Highest overall lending volumes, so widely used. Reliable for a broad range of products; Halifax often features in deal comparisons. Customer scores are respectable but generally behind top building societies.

Other notable mentions for good service or specific deals include building societies like Coventry, Yorkshire, Principality, Leeds, and Skipton (often high in satisfaction or awards) and NatWest (solid market share).

Key Advice for Choosing

• "Best" depends on your circumstances — LTV (deposit size), credit score, whether you're a first-time buyer, remortgaging, or moving home, and fixed vs. tracker rates all matter. As of early September 2026, competitive 2-year fixed remortgage rates for lower LTVs were around 4.5–4.8%, with 5-year fixes similar; fees vary (often £1,000+). Always compare live deals.
• Use a whole-of-market broker for personalised recommendations—they access deals from 90+ lenders and can help with eligibility. Over 80% of new mortgages now go through brokers.
• Check sites like Moneyfactscompare, Which?, or MoneySuperMarket for latest rates, and consider awards like Moneyfacts or MoneyAge for peer recognition.
• Customer satisfaction is generally high across major lenders (most 70%+ in surveys), but building societies edge out on service for many.

Rates and rankings change frequently, so verify current offers and get advice tailored to you (e.g., via a regulated broker or comparison tool). Your home may be repossessed if you don't keep up repayments.