Contract · For commercial leaders
You have hired both of these and paid the same rate for both.
One of them found money that was already yours. The other kept the books tidy. Nobody told you they were different, because on paper they were not.
Delivery
Brought in for a named piece of commercial work. The variations that have not been priced. The compensation events nobody has submitted. The final account nobody has agreed. Hired for the piece, paid for the piece, delivers the piece, and leaves when it is done.
Cover
A seat-holder. The shape of a permanent employee at contract rates. Same expectations, no defined outcome, no end date anybody has written down. Keeps the books tidy. Keeps the reports going out. The money on your contracts stays exactly where it is. That is not contracting. It is postponement.
It is about what the person was bought for. That is the question almost nobody asks before they buy.
Why you get sold Cover.
Cover is easier to find. There are more of them, they are available, and they can start Monday. The margin is the same either way.
So if you are paid margin and measured on speed, Cover is the rational thing to send. It is what the model produces.
Four questions, and you'll know.
01
Can you name the piece of work?
"The final account on the second phase" is a Delivery brief. "We need a QS" is not one yet.
02
What happens when it is done?
A Delivery brief has an end. If there is not one, you are describing a seat.
03
Is there money sitting still?
Unpriced variations, unsubmitted events, an account that has not moved in two quarters. That work usually pays for itself several times over.
04
Is the permanent search actually running?
If a contractor has held the seat for fourteen months, the answer is no. The contract hire quietly became the plan.
The only seat on the job that can pay for itself.
Site manager, project manager, engineer, planner. You need all of them and not one can put money on the table in their first month. That is not what those jobs are for.
A Quantity Surveyor can. The variation that has not been priced since March is money that is already yours, and it takes one person in one seat to go and get it.
Which is why this is the one hire that deserves different treatment from the others, and why the third good enough CV in month four is the most expensive decision anybody makes on that project.
Nobody hires the wrong QS on purpose.
A senior Quantity Surveyor takes four to six months to hire. By month four the third CV is good enough. You are not choosing a QS any more. You are choosing an end to the problem.
Put a Delivery QS on the named work first. Not to hold the seat. To find out what it has been sitting on.
As one Commercial Director told us for The Road to Commercial Director: the good organisations hire to calm the moment. The best ones calm the moment so they can hire properly.
What happened
One utility client, four months into hiring a Quantity Surveyor, put a Delivery QS on one named job instead.
He found compensation events nobody had submitted. Not buried, not disputed. There had simply been nobody in the seat whose job it was to look. Two months later £2m had come through the door on a contract they already held.
Then they ran the permanent search, pressure off, with a brief written by somebody who had been inside the job.
A day rate is not a salary with the decimal point moved.
Put the two side by side and contract looks expensive. It is the wrong comparison.
A permanent hire you got wrong costs the fee, the salary, the notice, the months the seat was empty before, the months it is empty after, and every decision nobody made in between.
A reference is given to you. A check is something you go and get.
A contract QS hands over two names. Both will say she was excellent. That is what the names are for.
We ring the people she actually delivered for. The Commercial Manager who signed off the final account. The Project Director who watched the compensation events go in, or watched them not go in. Usually we already know them. One discipline, and we have been in it a long time.
One of those tells you what she says she can do. The other tells you what she did.
Assistant Quantity Surveyor to Commercial Director, Contract, UK wide
Thinking about going contract yourself? The same lane from the other side
What people have said · Google reviews
Matt helped us place a freelance QS whilst we had an opening for a new full time position.
Andy Pickering · June 2026
Matt sourced the freelance position at the company I wanted to work for, and negotiated terms perfectly.
James Hughes · May 2026
They came highly recommended from a close friend. When I was ready for my next commission, I reached out.
Matthew B · August 2026
Should I use a Quantity Surveying consultancy or a freelance QS?
A consultancy sells a service and a team, and reports to you from outside. A freelance QS is one named person inside your team, answerable to you. If you need independent cost management or a firm's name on the report, use a consultancy. If you need the work done inside your own commercial team, a freelancer.
How quickly can a freelance QS start?
Freelancers usually have short notice, so it can be quick. We ask about availability last, not first. The right one a little later is worth more than the available one tomorrow.
Is a freelance QS inside or outside IR35?
It depends on how the work is done, not on what the contract says. For medium and large clients, the client makes the decision and has to give reasons. Our IR35 article covers the detail.
