The most useful answer begins with the condition at the property. Materials, age, base, drainage and previous work can change what is practical, so this article is a starting point—not a diagnosis from a photograph.
Good candidates for repair
A settled apron, small root-affected section, failed edge or limited drain area can often be rebuilt without disturbing the entire surface. Reusable pavers make the finish easier to blend.
Signs replacement deserves discussion
Movement throughout the field, badly deteriorated material, incorrect overall elevation or many unrelated patches may make full reconstruction more practical.
Ask for the reason, not only the price
A useful estimate should explain what failed, what will be lifted, how the support will be rebuilt and what result is realistic. That scope makes repair and replacement proposals easier to compare.
What to notice before requesting an estimate
Take one wide photograph that shows the affected area in relation to the house, driveway, pool or landscape. Add close views of movement, joints, cracks or staining, plus any nearby drain, downspout or edge. Note whether the condition changes after rain and whether it has spread over time.
A clear scope should explain what is visible, what may be contributing, which area will be opened or rebuilt and what result is realistic. If an underlying condition cannot be confirmed until pavers are lifted, that uncertainty should be stated rather than hidden.