Somewhere between the failed letter and the courtroom is a room (or a video call) with a professional whose whole job is getting deals done between people who currently hate each other. Mediation is voluntary, confidential, fast, and it settles most of the building disputes that reach it.
What mediation actually is
A trained neutral, often with a construction background, spends a day moving between the parties, testing each side’s case privately, translating positions into numbers and drafting the deal the moment one exists. The mediator has no power to decide anything: the pressure comes from reality-testing (“how will that argument survive a surveyor’s report?”) and from the visible cost of the alternative. Nothing said in the room can be used in court later, which is what lets both sides be honest about what they’d really accept.
The numbers that matter
- Cost: small-claims-scale disputes mediate from a few hundred pounds; typical domestic building disputes run £500–£1,500 per party for a full day with a construction mediator, often split. Video mediation trims it further.
- Time: an hour to agree to mediate, a fortnight to fix a date, one day to do it. Compare 6–12 months to trial.
- Settlement rates: providers consistently report 70–80% of mediations settling on the day or shortly after.
- The court factor: judges expect ADR. Unreasonable refusal to mediate can cost a winning party some or all of their costs, so a written offer to mediate is never wasted, even if declined.
The county court small claims track also offers a free telephone mediation service for defended claims, an hour with a court mediator, and worth taking every time.
When mediation fits: and when it doesn’t
Fits: quality and money disputes where both sides have a point; multi-issue tangles (defects + extras + delay) that a court would spend days unpicking; anywhere an ongoing relationship or a half-finished job means you still need cooperation; anywhere the legal costs would dwarf the difference between the parties’ numbers.
Doesn’t: a builder who won’t engage at all (mediation is voluntary); pure can’t-pay insolvency situations; cases where you need a precedent or an enforceable ruling against a serial rogue, that’s what court and trading standards are for.
Preparing to win the day
Mediation rewards preparation as much as court does:
- A one-page chronology and a tidy bundle: contract, photos, quotes, correspondence. The mediator reads fast; make it easy.
- Your number, and your walk-away, decided in advance, in cold blood: what you’d accept today against the cost, delay and risk of not settling. Remedial quotes and benchmark figures anchor your number to something real.
- What you can trade, timing of payment, scope of remedial works, who does them, a reference withheld or given. Deals are built from moving parts, not just the headline figure.
- Authority to settle, both decision-makers in the room.
The deal at the end
Settlements are written and signed on the day, a short agreement stating who pays or does what, by when, “in full and final settlement” of the dispute. Once signed it’s a binding contract, enforceable like any other. Get remedial work described specifically (what, by whom, by when, what standard), not as “builder to sort the snags”.
If mediation fails, you’ve lost a day and learned the other side’s case, and the next rungs are still there. Most people never need them.
This guide is general information for homeowners in England and Wales, not legal advice.
