How to become a freelance quantity surveyor

Freelance QS work rewards experience and organisation. Here is how to make the move with confidence.

Last reviewed 16 October 2026 · 6 min read

Build the experience clients pay for

Freelance QSs are usually engaged to hit the ground running: picking up packages mid-project, catching up valuations or settling final accounts. Clients look for a track record on similar projects, contract forms (such as NEC and JCT) and project values.

Many QSs hold a quantity surveying or commercial management degree and work towards membership of RICS or CIOB. Membership is not legally required, but it is a useful signal of competence, especially for client-side work.

Decide what kind of freelance QS you will be

  • Contractor's QS: subcontract procurement, valuations, CVRs, change and final accounts for main contractors or specialists.
  • Client-side (PQS): cost planning, cost reports, valuations and certification for clients and developers.
  • Specialist: claims, estimating, or a particular sector such as rail, highways or fit-out.

A clear focus makes you easier to find and easier to recommend.

Set up your business

  1. Choose a structure: sole trader or limited company. Ask the agencies and contractors you want to work with what they prefer.
  2. Get suitable insurance. Professional indemnity is particularly relevant for commercial advice. Many contracts also ask for public liability.
  3. Open a business bank account and set up invoicing, expense and mileage records from day one.
  4. Keep your CSCS card and any training in date if you will spend time on site.

Find your first contracts

Former employers and colleagues are often the first source of freelance work, so let your network know before you leave. Agencies and direct contractor relationships follow.

Make it easy for hirers to say yes: a clear profile and CV that list projects, values, contract forms and your role, plus references ready to share. On 3lanse, hirers can see your availability and day rate, and you can browse QS jobs and apply directly.

Set your day rate

Work out the income you need, allow for unpaid days between contracts, holidays, training, insurance and accountancy, and divide by a realistic number of billable days. Then compare with what similar QSs in your region are charging. There is no official dataset of freelance day rates, so speak to agencies and peers.

Stay organised

Track the days you work per project, invoice promptly and keep your documents in date. Consider IR35 for every engagement and keep a record of how you assessed it.

Sources

Run your freelance business on 3lanse

Profile, invoicing, documents, PQQ and IR35 in one place, with Aidmin on Pro. Start free.