Why stage payments drift
Stages written as words rather than measurements leave room for two honest views. First fix sounds precise until half of it is done and the invoice arrives anyway.
The drift is rarely deliberate. It is what happens when nobody values the work and the only number in the room is the one on the request.
Valuing what is built
A monthly valuation is a short exercise. Walk the job, measure what is complete, price it against the agreed breakdown, and set that against what has already been paid.
The output is one figure and a short note on what it covers. It takes an hour or two and it is the single most useful hour on a domestic project.
Extras, as they arise
Every change gets priced when it is agreed, not at the end. A running list with a value against each line means you always know what the project now costs, rather than finding out when the last invoice lands.
It also keeps the conversation small. One extra is a question, fifteen at once is an argument.
Keeping your own record
Dated photographs each month, the agreed scope, the change list and the payment history are enough to settle almost any dispute a house project will produce.
They cost nothing to keep while the work is going on, and they cannot be created afterwards.
What this means for you
Paying for work in place is not a sign of mistrust. It is the arrangement that lets a good builder be paid promptly and leaves you protected if the job stops.
Reltic values work monthly on home projects, tests each extra against the agreement and settles the final account on evidence.
Ask for a valuation before the next payment
We attend, measure what is in place and tell you what is genuinely due this month.