Direct answerThe programme depends on design approval, concrete curing and finish work.
What to check first
Late design changes can delay several trades.
The existing pool, property access and equipment condition can change the answer. Record what is happening before adjustments are made.
What affects the work
Allow time for filling and commissioning.
A clear scope should separate inspection, repair and optional improvement work. This makes quotations easier to compare.
When a site visit is useful
A site visit is needed when the answer depends on pipework, water loss, structural movement or the exact equipment installed. Photos can narrow the likely cause but cannot confirm a concealed fault.