Indoor gyms have metal frames with wood panels and then textured. Most home walls are just wood framing and hardwood. We have one in our garage.
The only thing I can think of that might suit your needs would be, decided what type of board you want, look for plans online or get a book building home walls (there’s one on Amazon: https://www.amazon.com/Building-Your-Own-Climbing-Wall/dp/0762780231), then just hire a carpenter. It’s really not that hard to build a well built one, you don’t need a fancy company, just someone competent. Who will build it and get you the materials.
You could also Ask r/climbing if they know anyone locally.
Check this book out: https://www.amazon.com/Building-Your-Own-Climbing-Wall/dp/0762780231
It has so much good info.
Here's a couple of resources that I found helpful:
http://www.metoliusclimbing.com/pdf/How-to-Build-a-Home-Bouldering-Wall.pdf
http://www.amazon.com/Building-Your-Own-Climbing-Wall/dp/0762780231