Who buys the materials — and what changes when they do
You can supply the materials, the client can, or you can work from an allowance in the quote. Each choice moves the guarantee, the waiting, and your own cash in a different direction. Decide which one before the job starts. Do not wait until a delivery goes wrong.
Materials get bought three ways: you supply them, the client supplies them, or you supply against an allowance. When the client supplies materials, your guarantee usually covers your labor, not their parts. A wrong or late delivery is their problem to chase. Materials money leaves your account at the supplier. It returns on the client’s invoice. So put the allowance and the lead time in the quote, not in a text message later.
Every job with parts in it needs one decision before you start: who buys them. Get it right and it barely comes up again. Get it wrong, and a late delivery or a damaged part becomes an argument about whose problem it is.
Three ways to buy the materials
Pick one before you quote, not after the client asks:
- You supply them. You buy the materials and mark them up. They sit on your invoice as one line or several. You control the brand, the quality, and the delivery date.
- The client supplies them. The client buys the parts and you fit or install them. You quote your labor only. You take on whatever the client delivers to site.
- You supply against an allowance. You quote a fixed sum for materials, called a provisional sum. You true it up once you know the real cost.
What changes when the client supplies the materials
Handing the buying to the client feels like it saves you a step. It also hands over a few things you might not expect:
- Your guarantee. A workmanship guarantee covers your labor. It does not automatically cover a part the client bought. If a tap fails a month after you fit it, that usually isn’t your problem. This holds when the client chose and paid for that tap.
- A wrong or short delivery. If the client’s order is missing a piece or is the wrong size, that is a call to their supplier. It is not a fix you owe for free.
- Storage. Parts that arrive before you do need a dry, safe place to sit. Agree where, and who is responsible for them once they are there.
- Who waits when a part is late. If the client buys, a late delivery is the client’s wait. You did not cause the delay. Say so plainly. Do not quietly take the blame for someone else’s supplier.
See client-supplied materials for the full rundown, including what to write down before you agree to it.
Money out before money in
When you buy the materials, the cost leaves your account at the supplier. It can be days or weeks before the client’s invoice pays you back. A deposit closes that gap. See deposits and progress invoices for how much to ask for and when. The free materials up-front check shows how much of your own cash is tied up on your own job. It also shows for how long.
Lead times belong in the quote
“The part’s on backorder” is a much easier conversation before the job starts than halfway through it. If a material has a real lead time, state it on the quote. Build a realistic start date around it. Do not send a text message once the client already expects you.
What to put in the quote
Whichever way you buy, three things belong on the paper, not in your head:
- The allowance, if you quote a provisional sum. Give the figure, and say what happens if the real cost lands above or below it.
- How long the supplier’s price holds, so a rise before you order is not a surprise you absorb alone.
- Who receives the delivery, if the client buys: you on site, or the client themselves.
The free terms and conditions builder already has a materials clause. Fill in the numbers that fit this job and it goes straight into the quote.
You may need to confirm who buys, chase a wrong delivery, or set a lead time before you order. The materials and parts scripts have the exact messages for each.
Common questions
Do I have to guarantee materials the client bought?
No. Your workmanship guarantee covers your labor. It does not cover a part someone else chose and paid for. Say this plainly before the job starts, not after a part fails.
Who pays if a client-supplied part arrives late?
The client does, in time. They are waiting on a delivery, so the wait is theirs. You did not cause the delay. Quote a start date that depends on the part being on site. Do not guess.
Should I ask for materials money up front?
Yes, for anything you buy yourself. A deposit that at least covers the materials means the supplier does not come out of your own pocket first.
What if the real materials cost is different from my allowance?
State it as a provisional sum. Then true it up once you know the real number, up or down. Do not quietly absorb a rise or under-bill a saving.
Want the material lines sitting with the job?
BizBinder doesn’t track your supplier, your delivery, or your lead time. That’s still yours to manage. You can add material lines to the job with a quantity and a rate. You can mark each one billable or not. The invoice is then built from the billable lines.
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- guide How to price a job so the number holds up The quote works only if its number works. Start with the price, then write it up.
- tool Free Quote & Estimate Generator Fill in your business and client details. Add line items, mark any as optional, and set a deposit. A clean quote builds as you type. Turn it into an invoice with one click.
- tool Quote & invoice terms builder Tick the clauses that fit the job and fill in your numbers once. You get a plain-English terms block. Copy it, print it, or send it into the quote generator.