Materials on a building job: ordering, supply and responsibility
Decide who orders supplies and avoid delays or disputes about wrong products.
Applies to: UK trade businesses and homeowners using mixed supply arrangements.
Last checked: 16 October 2026
Key points
• Agree who chooses, pays for, delivers and checks every material.
• Make the consequences of missing or unsuitable customer-supplied items clear up front.
• Keep product codes, delivery records and return arrangements with the quote.
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Why it matters
When tiles or fittings are supplied by the customer, a missing trim or incompatible adhesive can still stop the job. A simple agreed purchasing list makes responsibility visible.
Practical job checklist
• List exact specifications, sizes, quantities and any approved substitutes.
• Confirm lead times, access for deliveries and secure storage.
• Check breakage allowance, returns and who pays for extra trips.
• Inspect critical products before installation and flag discrepancies promptly.
What to do next
If a product is unsuitable, explain the impact and obtain an agreed solution before fitting. Keep receipts and make changes to price or programme explicit.
Official sources
Use these official sources for the current detail that applies to your job, contract or location.
BuildPair provides general information and signposting, not legal, structural, electrical, gas or building-control approval. Requirements can change and the right answer depends on the work, contract, location and facts.
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