Before you get trades people go and measure kitchen and then make a kitchen plan. Select the kitchen unit company you think appropriate- Ikea is flat pack, howdens isnt.
and get the layout done.
with as much input from your dad as you both want.
take him to the show room to select the door front colour.
and handles .
based on these choices then choose 3/4 options for work tops
and back splash and floor material.
Get samples for these, and put price on back of each of them .
choose sink, tap and light fittings and socket plates.
give him 2//3 options for each of these.
Only show him options that you think are harmonious.
you want the kitchen to look good, for him to like it, but for it to also be in decent saleable condition when the time comesz
ask him what is the key functions etc for each appliance and then show him suitable options on AO.com or John Lewis or the appliance shop you think is suitable .
take time to print out the spec for each and the prices etc .
so he can decide.
Do all of this before getting the builder/kitchen fitter to visit .
they will be able to give you the most accurate quote when they know what they are fitting.
they will also know that the job will
e smooth running if they can see that all elements have been considered and they won’t be chasing for information or choices or lead times.