On Tue, 20 Mar 2012 13:37:51 -0700 (PDT), Dottie
wrote:

The man who works
on mine does not install them anymore but gave me the name and number
of a company that he says does good work and has good prices....I
haven't called yet. He recommended Chamberlain's Lift Masters - said
it had a good Consumer Report review. Before I go shopping -- is
there anything I should be careful about? My late husband always did
the shopping for this before and I am not very knowledgeable about
it. Thanks.

I have the Chamberlain now also, chain drive. It has been reliable,
but it is only two years old. They are a good brand.

Be sure it is powerful enough for your door if it is a large one. In
general, the bigger the better. Some have extra features such as the
ability to turn on the light and not open the door.