Any recommendations on a Designer who can help with paint colors, flooring, cabinet colors, hardware,etc to redo home interior.

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Most get great advice from local shops, e.g. on site decorator inside paint/other shops, etc.
Like most decorators, they hold no state license that insures the education & tests passed to properly protect the public but serve well & freely.

Then there's the decorators that also have no license but had positive feedback experience on their own homes or married well enough to know the shops & good deals. These will actually put together a more complete /comprehensive harmonizing board of all the materials color/texture options beginning with the fewest options and building from there. Some may be limited in what they can or have done and if in a rut beware that they might try to change your tailored-to-suit-rooms to suit themselves. Say no and walk. The good ones are hard to beat, even by licensed designers.

Texas license designers to interview, compare tastes and past accolades can no longer be searched at the Texas Board of Architectural Examiners, only a huge roster to download, which I have pared down & attached for you/Aggieland. I am not listed due to Emeritus status and not practicing that tedious license, so will giving TBAE a little Hell for lack of customer search ease. If you personally know any ot these names "retired", it might be best to twist their arm to "do one more" for you, e.g. Linda Allen, C. Spang, C. Swanteson, Eliz. Ward. So I am left with heresay referrals from others that may not be licensed, e.g. Susan Tremont (By Design Int), Janice McKean Int, Mary Alice Lambert, Interior Accents. Each may have a personal style talent, so bring your tastes to the interviews for a match-up. Message me with other names in case I have a history on them & you need to be steered clear.

What area? I have a friend who's wife does interior design up in the Tomball area and she is fantastic.

we have one in Magnolia