If your are not sure how to install something like this call a professional
356034
My dog took a while to get use to this thing. If your are not sure how to install something like this call a professional.
I am very pleased with their product. My dog finally figured how to use the hole in the wall. No more wake up calls.
Estimated installation one day.

I hope that this helps.
751561
For some who is DIY-challenged, this was easy to install.
4865938
works good once you can figure out how to actually get it installed. they make it sound so easy but in reality it took me 4 tries to get the part that holds the bottom to squeeze together enough to hold it in place.
1430408
Works 100% like it's suppose to, remember guys, make sure to look up the instruction manual incase you don't know how to install, there are youtube videos as well
2455470
Takes some work and patience but it is a lot cheaper than having a professional install it.  Buy extra if you arn't a pro you may cut it wrong the first time or two or three
1895239
This product would have been installed correctly had instructions/diagram been included.  It took several phone calls to get the job done correctly.
4746607
Probabaly works fine but it looked complicated to install so I sent it back.
3595818
product is difficult to install.  I would like a reference to a handyman who can help
3348267
Nothing but problems after professional installation.
3947465
Make sure you have the right tools! Can't stress that enough it's easy to instal if you have the right tools
4887480
It requires a minimal skill set.... you need some common sense and a tiny amount of know how to install it.  If you don't have it just leave it to the professionals and semi-professionals.

It installs in minutes and looks pretty good!
2284915
Read the instructions very carefully! Follow each and every step as this is a little more complicated to install.
1395573
You really need someone else to help you apply this. Unless you are a professional don't buy this without help.
2788445
I installed it my self.  Yes it takes a while.  If I have to do another it should be easier.  There is a learning process to learn the best technique to install.
117636
Made installation much easier and more professional.
3028543
Looks great once you figure out the instructions.
4045132
Do not attempt this if you lack even the slightest common sense or creativity...as the install directions leave a lot to be desired....