We organise our longer engagements on a per-project basis: this is safer for both parties and means that you will never be hit with cost overruns or scope creep. Once we've sat down and agreed on a price and scope of work, you pay half the agreed sum upfront, and the remaining half on completion of the project.
For shorter engagements, we offer defined-time offerings at a fixed cost: you can read more about these below.