Written Contract Guide for Tradespeople

Quick Answer: Every job over £500 should have a written contract — not a formal legal document, but a clear written record of what is agreed: scope of work, price, payment terms, programme, and the variation procedure. A signed quote with a clear scope constitutes a contract. Without one, disputes default to "your word against theirs," and the customer's statutory rights under the Consumer Rights Act 2015 apply regardless.

Summary

A written contract is not about distrust — it is about clarity. Most disputes between tradespeople and customers arise not because either party is dishonest, but because they had different expectations of what was included, what the price covered, and what happens if circumstances change. A clear written agreement, reviewed before work starts, eliminates most of these misunderstandings before they become arguments.

UK consumer law gives residential customers a range of statutory rights that apply regardless of what your contract says or does not say. The Consumer Rights Act 2015 requires services to be performed with reasonable care and skill, within a reasonable time, and at a reasonable price. If your contract is silent on any of these, the statutory defaults apply — often in the customer's favour. A good written contract does not try to remove these rights (it cannot, legally) but does define the specifics: the agreed price is the reasonable price, the agreed scope defines what "reasonable care and skill" is being applied to, and the agreed programme defines "reasonable time."

For domestic (consumer) contracts where work is agreed away from your business premises — at the customer's home, over the phone, or online — the Consumer Contracts (Information, Cancellation and Additional Charges) Regulations 2013 impose additional obligations, including a 14-day cooling-off right that you must inform the customer about.

Key Facts

• A signed quote is a contract — if it contains scope, price, and payment terms, and the customer accepts it in writing, it meets the basic requirements of a contract in English law
• Consumer Contracts Regulations 2013 — for off-premises contracts (e.g. agreed at customer's home), you must provide specified information in writing and inform the customer of their 14-day cancellation right; this applies before work starts
• Cancellation right waiver — if the customer wants work to start within the 14-day cancellation period, they must sign a waiver (or explicit request) acknowledging they will lose the cancellation right if work begins and is completed within that period
• Consumer Rights Act 2015 — services implied terms: reasonable care and skill (s.49), reasonable time (s.52), reasonable price (s.51) — cannot be contractually excluded for residential customers
• Unfair Terms — under the Consumer Rights Act, contract terms that create a significant imbalance between you and the customer may be unenforceable; courts look at whether terms are transparent and prominent
• Cooling-off does not apply to urgent repairs — if the customer requests an urgent repair (e.g. burst pipe, boiler breakdown), they can waive the 14-day right
• Commercial contracts (B2B) — different rules apply; freedom of contract is broader, and Late Payment of Commercial Debts Act 1998 rights apply automatically
• JCT Homeowner contracts — standard-form contracts from the Joint Contracts Tribunal; provide a ready-made framework for larger domestic projects
• Dispute resolution clause — specify the ADR scheme you are a member of and how disputes will be escalated; some trade association memberships require this

Quick Reference Table

Detailed Guidance

The Minimum Viable Contract

For most domestic jobs, you do not need a solicitor-drafted document. A quote that contains the following elements, signed or confirmed in writing by the customer, constitutes a valid contract:

Quote / Agreement for Works

Date: [DD/MM/YYYY] Customer: [Full name and address] Business: [Your trading name, address, and contact details]

Description of Works: [Detailed scope of work — the more specific, the better. Reference specific rooms, materials, product models where agreed.]

Exclusions: [List anything adjacent to the work that is NOT included — e.g. "Does not include making good to plaster after tile removal", "Excludes electrical first-fix cabling"]

Price: £[X] (exclusive of VAT) / inclusive of VAT at [20%] Type: Fixed price / Estimate (delete as applicable)

Payment Terms:

• Deposit: £[X] on acceptance of this quote
• Stage payment: £[X] on [milestone]
• Balance: £[X] on practical completion

Programme: Proposed start date: [Date] / Approximate duration: [X] days/weeks

Variations: Any change to the agreed scope will be confirmed in writing before work proceeds and priced accordingly.

Materials: [Contractor/customer supplied — specify. If contractor-supplied, note whether customer has approved specific brands/specifications.]

Defects Liability: [X months] from practical completion. Defects caused by fair wear and tear, misuse, or third-party works are excluded.

Cancellation: Under the Consumer Contracts (Information, Cancellation and Additional Charges) Regulations 2013, you have the right to cancel this contract within 14 days without giving a reason. If you wish work to begin within this 14-day period, please sign below to confirm you are aware that you may lose this right if work is completed.

Cancellation waiver (if required): I confirm that I request the contractor to begin work within the cancellation period and understand that I may lose my right to cancel.

Customer signature: _________________________ Date: _____________

This template covers the minimum requirements. Adapt it to your specific trade and typical job type.

Scope of Work — The Most Important Section

The scope is the heart of the contract. Vague scope = disputes. "Fit new bathroom" is not a scope. "Strip existing bath, WC, basin, wall tiles, and floor tiles; supply and fit [specification] suite; tile walls to 2.1m with [specified tiles at specified size]; fit chrome accessories; connect all plumbing" is a scope.

Common items that cause disputes when not addressed:

• Who supplies materials (and what happens if the customer's supplied materials are defective)
• Disposal of waste — included or extra?
• Making good to adjacent areas (decorating, plastering after tile removal)
• Access requirements and hours of working
• Asbestos or other hazardous materials — who is responsible for testing and removal?
• What happens if unforeseen conditions are discovered

Payment Terms — Setting Up to Get Paid

Clear payment terms in the contract make chasing much easier. If your invoice says "30 days" and nothing else, the customer has 30 days. If your contract says "balance due on practical completion, to be settled within 7 days of handover," you have a specific due date and a mechanism to trigger the payment chasing process immediately.

Recommended structure:

• Deposit (10–25%): on acceptance, before materials are ordered. Protects you against customer cancellations.
• Stage payment(s): milestone-based for longer jobs. Tie to observable events (first fix complete, plasterboard up, tiles laid).
• Final payment: on practical completion, not "on customer satisfaction" (which is indefinitely deferrable).

See requesting deposits from customers for guidance on deposit amounts by job type.

The 14-Day Cooling-Off Right

For contracts agreed at the customer's home, online, or over the phone (all common scenarios for tradespeople), the Consumer Contracts Regulations 2013 require you to:

1. Inform the customer of their 14-day right to cancel before work starts
2. Provide model cancellation language (available from the government website)
3. If the customer wants you to start within the 14 days, get their written request and a statement that they understand the consequence

If you fail to provide this information, the cancellation period can extend to 12 months. Most customers will not exercise the cooling-off right — but failing to provide it correctly leaves you legally exposed.

For boiler breakdowns, emergency plumbing, and similar urgent repairs, the cooling-off right does not apply if the customer explicitly requests an immediate start and acknowledges they accept this.

Frequently Asked Questions

Is a verbal agreement a valid contract?

Yes — verbal contracts are legally binding in English law. But proving the terms of a verbal contract is very difficult if the other party disputes them. A written contract is far better evidence. "He said, she said" disputes almost never resolve cleanly.

Does every job need a formal signed contract?

Practically speaking, for jobs under a few hundred pounds, a simple text confirmation is usually sufficient. For larger jobs (from a few thousand pounds upwards), a signed document is worthwhile. The breakeven point where the risk of dispute justifies the friction of a formal sign-off depends on your trade and typical job size.

Can I use the JCT Homeowner Contract?

Yes — the JCT produces a Homeowner Contract (formerly the Building Contract for a Home Owner/Occupier) that covers most domestic building projects. It includes provisions for variations, defects, programme, and disputes. It is not free but is inexpensive and widely accepted. For projects over £10,000–15,000, it is worth using.

What if the customer changes their mind after signing?

They have the 14-day cooling-off right under CCR 2013 (if it applies) without penalty. After that period, they can cancel but may owe you your losses — including materials ordered, sub-contractors booked, and lost profit on the work. Your contract should address this; if it does not, the remedy is a quantum meruit (reasonable sum for work done and costs incurred).

Regulations & Standards

• Consumer Rights Act 2015 — implied terms for services (s.49–s.57); unfair terms (Part 2)

• Consumer Contracts (Information, Cancellation and Additional Charges) Regulations 2013 (SI 2013/3134) — off-premises and distance contract requirements; 14-day cancellation right

• Supply of Goods and Services Act 1982 — now largely incorporated into the Consumer Rights Act but still relevant for B2B contracts

• Unfair Contract Terms Act 1977 — limits exclusion clauses in B2B contracts

• Late Payment of Commercial Debts (Interest) Act 1998 — automatic statutory interest rights for B2B contracts

• Consumer Contracts Regulations 2013 — gov.uk — full regulations text

• Consumer Rights Act 2015 — gov.uk — implied terms for services

• JCT Homeowner Contract — standard-form domestic building contract

• Citizens Advice: Making a contract — consumer-facing explanation of contract law basics

• written contracts for trades: key terms and common clauses — the broader legal framework

• terms and conditions for tradespeople — standard T&Cs to attach to every quote

• quotes vs estimates: legal distinction — understanding when your price becomes binding

• requesting deposits: amounts, timing, and customer communication — the mechanics of stage payments