Look at a range of slabs
One sample cannot show the full character of natural stone. Ask to see several pieces or representative images of the proposed product, including its likely colour variation and surface texture. Compare wet and dry appearances beside your house. Specify the stone, finish, slab sizes and supplier in the quote so competing proposals are easier to assess.
Match the texture to the way you use the patio
A pronounced surface texture may appeal beside a garden wall, but consider how dining chairs, small tables and wheeled items will sit or move across it. Tell the installer if you need an easy route for a pushchair or mobility aid. Discuss a suitable finish, joint arrangement and transitions between the patio and adjoining paths.
Balance the pattern with planting and boundaries
Mixed slab sizes create a different rhythm from a regular grid. Ask for a layout that accounts for your seating area, borders and existing features, including any stonework you want to retain. Clarify how edges will be supported and how changes in level will be handled; these details should be included in the agreed scope.
Ask about care for that particular stone
Cleaning and sealing advice should relate to the exact stone rather than natural paving in general. Request supplier guidance before agreeing to a sealer or treatment. Discuss nearby trees, pots and cooking areas so you understand the likely cleaning routine, and keep a record of the product for future matching or repairs.