I need an example of an introduction letter for a construction firm

Hi, akisanya!

There are many sites that deal with how to write effective company introduction letters. If you click on the following links to searches, you'll find them.

How to Write an Effective Introduction Letter for a Company - Google Search

Company Introduction Letter - Google Search

Sample Construction Company Introduction Letter - Google Search

Concerning your specific needs though, if you would like to start a draft copy of an introduction letter on this thread, without putting in any identifying information, I'm sure that there will be those of us who would be willing to advise you as to how you could make improvements to your letter.

Also, is this concerning a business that you have or someone elses', please?

Thanks!