Mediation vs Arbitration: Key Differences for UK Disputes

When you're facing a civil dispute in the UK, court is not your only option. Mediation and arbitration are two well-established alternatives that can resolve disagreements faster, more cheaply, and with less stress than litigation. But they work very differently. This guide explains the key distinctions so you can decide which path suits your situation.

The short version

Mediation is where a neutral third party helps you and the other side reach your own agreement. You stay in control. If you reach a settlement, it becomes binding only once you sign it. If you don't agree, you can still go to court.

Arbitration is where a neutral arbitrator hears both sides and makes a final decision for you. The outcome (called an award) is binding and enforceable, much like a court judgment. You give up the right to appeal (with very limited exceptions).

Think of mediation as a guided conversation. Think of arbitration as a private court process.

At a glance

How mediation works

Mediation is a structured process in which a trained, independent mediator acts as a go-between. The mediator does not judge, decide, or side with anyone. Their job is to help you and the other party understand each other's positions, explore options, and reach a mutually acceptable solution.

The typical flow:

1. One or both parties request mediation (or a court may suggest it).
2. You select a mediator, often through an organisation like the Civil Mediation Council.
3. Each side meets the mediator separately (confidential "caucuses") to discuss the dispute and your goals.
4. The mediator shuttles between rooms, relaying information and testing whether common ground exists.
5. If both sides agree on terms, a settlement agreement is drawn up and signed.
6. If no agreement emerges, either party can still pursue court action.

Duration: Mediation typically runs 1 to 3 months from start to finish, though a single mediation session can sometimes produce results in a day.

Your role: You remain in complete control. You decide whether to settle and on what terms. The mediator cannot impose a solution. Mediation succeeds only if both sides agree.

How arbitration works

Arbitration is a private judicial process defined by the Arbitration Act 1996. You and the other party refer your dispute to one or more arbitrators (usually one), who hear evidence and arguments, then issue a binding decision called an "award."

The typical flow:

1. A contract between the parties names arbitration as the dispute mechanism, or both parties agree to arbitrate after a dispute arises.
2. You appoint an arbitrator (or use a pre-agreed selection process).
3. Both sides submit written statements and evidence (often less formal than court).
4. A hearing is held (may be in person or by video) where each side presents its case.
5. The arbitrator reviews evidence and issues a written award.
6. Either party can apply to enforce the award in court (or in other countries via the New York Convention 1958).

Duration: Arbitration typically takes 3 to 12 months, depending on case complexity and the arbitrator's workload.

Your role: You present your case but the arbitrator has final say. You have no right to overturn the award unless specific grounds exist (more below).

Binding effect

This is the clearest difference.

Mediation: You are never bound to accept a settlement unless you sign an agreement. If mediation fails, you are free to pursue any other remedy, including court. A signed settlement agreement is binding and enforceable, but only because you chose to agree to it.

Arbitration: The arbitrator's award is binding and final from the moment it is issued. Once an arbitrator decides, you cannot simply walk away. The award is enforceable in the same way a court judgment is.

Cost compared

Mediation costs:

• Mediator fees typically range from £150 to £300 per hour.
• A single-day mediation might cost £1,000 to £2,000.
• Multi-session mediations over several weeks can reach £3,000 to £5,000.
• Court costs are avoided if settlement is reached.
• You may wish to brief a solicitor before and after mediation (additional cost).

Arbitration costs:

• Arbitrator fees: £150-£400+ per hour depending on experience and specialist knowledge.
• Hearing costs (venue hire, administration) add £1,000-£5,000+.
• Full arbitrations regularly cost £5,000 to £15,000 for straightforward cases, and much more for complex disputes.
• Both sides bear their own legal costs (not recovered, unlike court).
• Specialist arbitrators (construction, IP, maritime) cost significantly more.

Winner: Mediation is almost always cheaper if you reach settlement. Arbitration is cheaper than full court proceedings but pricier than mediation.

Length compared

Mediation: Fastest option. First session can happen within weeks. Most mediations conclude within 1-3 months.

Arbitration: Slower than mediation but usually faster than court. Simple cases 3-6 months; complex cases 12 months+.

Court litigation: Typically 12-24+ months from issue to trial, longer if appeals follow.

Suitable disputes for each

Mediation works best when:

• Preserving the relationship matters (business partnerships, neighbour disputes, employment disagreements).
• Speed is essential.
• Cost is a primary concern.
• The dispute involves a mix of legal and personal/emotional factors.
• Both sides genuinely want to resolve the issue.
• Complex technical evidence is not central to the dispute.

Arbitration works best when:

• A binding decision is essential (you need finality).
• The contract already specifies arbitration.
• The dispute is technical or specialist (construction defects, shipping, intellectual property).
• Confidentiality is critical (commercial sensitivities).
• Fast, private resolution matters more than the ability to appeal.
• An impartial expert decision-maker is preferable to a jury or generalist judge.

Confidentiality

Mediation: Completely confidential. Nothing said in mediation can be used in court later, and mediators have strict duties of confidentiality. This safe-space protection encourages openness.

Arbitration: The arbitration proceedings are private. The award may be confidential depending on the parties' agreement, but arbitrators can be required to disclose awards for enforcement or where the parties agree.

Advantage to mediation if privacy and candour are paramount; advantage to arbitration if you want a binding, enforceable outcome while maintaining privacy.

Appeal rights

Mediation: You have no appeal right because the mediator makes no decision. If you sign a settlement and later discover the other side misrepresented a key fact, you might challenge the agreement in court (fraud, misrepresentation), but this is rare and difficult.

Arbitration: The Arbitration Act 1996 gives very limited appeal rights:

• Section 67: Challenge the arbitrator's impartiality or jurisdiction (rare).
• Section 68: Appeal on a point of law (only with the arbitrator's permission or the other party's consent, and only if the point is of public importance).
• Section 69: Challenge the award for serious procedural irregularity.

In practice, nearly all arbitral awards are final. The English courts rarely overturn them. This finality is a feature: it ends uncertainty quickly.

Enforceability of outcomes

Mediation settlement agreement:

If you reach a settlement and sign a written agreement, it becomes a binding contract. If the other party breaches it, you can sue them for breach of contract in the normal way. You would need to prove the terms, the breach, and your loss. This involves going to court and can be as lengthy as standard litigation.

Arbitral award:

An arbitral award is directly enforceable. You do not need to prove your case again. You can apply to the court for a "charging order" or "order to enforce" which makes it as easy to collect as a court judgment. The English courts will enforce arbitral awards unless fraud or serious procedural impropriety can be shown. The New York Convention 1958 makes English arbitral awards enforceable in 180+ countries, making arbitration attractive for international disputes.

Winner: Arbitration is stronger. An award is presumed valid and enforceable without re-litigation.

How to start each

Starting mediation:

1. Agree with the other side (or propose mediation to them).
2. Contact a mediation provider (Civil Mediation Council lists accredited mediators).
3. Pay the mediation fee.
4. Attend mediation sessions.
5. If you reach agreement, sign a settlement agreement.
6. If no agreement, you remain free to pursue court or arbitration.

Starting arbitration:

1. Check if your contract already has an arbitration clause.
2. If not, and both sides agree, draft an arbitration agreement.
3. Select an arbitrator or arbitration organisation (e.g. British Institute of International and Comparative Law, Chartered Institute of Arbitrators).
4. Submit your claim in writing.
5. Attend hearings and submit evidence.
6. Receive the arbitrator's award.
7. Enforce the award in court if the other side does not comply voluntarily.

Common misconceptions

"Mediation is for amicable disputes only." False. Mediation works in highly contentious, even hostile disputes. The mediator's skill is creating enough dialogue that settlement becomes possible.

"Arbitration is just like court." Partly true. Arbitrators apply the law (usually) and hear evidence, but the process is more flexible, faster, and final. There is no jury, no public record, and extremely limited appeal.

"If mediation fails, I've wasted money." Not necessarily. Even failed mediation often clarifies positions, narrows issues, and can lead to a negotiated settlement after mediation ends. Plus, costs are far lower than a trial.

"Arbitration is binding, so I have no control." True, but you chose arbitration (or agreed to a contract with an arbitration clause). You also control how you present your case and what evidence you submit.

"Mediation means splitting the difference." No. Mediation has no predetermined outcome. You might settle 90-10 in your favour, or not settle at all.

Related concepts and further reading

• Conciliation: Closely related to mediation; conciliators may suggest solutions, whereas pure mediators do not.
• Litigation: Court-based dispute resolution; public, lengthy, subject to appeal, but provides legal precedent.
• Expert determination: A third party with technical expertise makes a binding decision (quicker and cheaper than arbitration for very specific disputes).
• Negotiation: Direct discussion between the parties, with or without solicitors. Mediation is structured negotiation.
• Ombudsman schemes: For specific sectors (financial services, utilities) offering free or low-cost resolution.
• Dispute Resolution Portal: Small Claims Court fast-track for claims up to GBP 100,000.
• Pre-action protocols: Court-backed guidance encouraging settlement before litigation begins.
• Contract arbitration clauses: Many commercial contracts require arbitration; check yours.
• The Arbitration Act 1996: The legal framework governing all arbitration in England, Wales, Scotland, and Northern Ireland.
• Civil Mediation Council: The umbrella body for mediation providers in the UK.

Sources

• Arbitration Act 1996: https://www.legislation.gov.uk/ukpga/1996/23
• Civil Mediation Council: https://www.civilmediation.org
• UK Government guidance on resolving disputes: https://www.gov.uk
• Law Society of England and Wales - Alternative dispute resolution: https://www.lawsociety.org.uk

Disclaimer: This page provides general information about UK mediation and arbitration for civil disputes. It is not legal advice. Every case is different, and the best path for your dispute depends on your specific circumstances, budget, and goals. Before proceeding with mediation or arbitration, you should consult a solicitor or barrister.

Written by Peter Kolomiets, founder of CaseCalm. UK content reviewed 2026-05-28.