@Himanshu Jain  you could also pay a civil engineer probably 500 to 1000 bucks and they would write it out for you that is specific to your location and jurisdiction.I do this when I am looking at new areas.

I'm not sure if it works for berber, but my carpet repair people use a tool to cut out and replace the stained area.

I spent about 10 hours (and $250) painting chipped paint, Installing some smoke detectors and replacing a window, but was able to keep the deal alive. 

The extra income is nice but it never covers destroyed yard or replacing all the flooring that was damaged by pet urine.

I have been working for a civil engineering firm for the last 2 years and knew I wanted to dive into the REI world and that it could relieve me from a boss or 9 to 5 and provide financial freedom for me and my future family so we could focus on giving back or reinvesting I like to think.

Some of the other projects i have tackled include: roofing repair, gutter replacement, deck building, window replacement, drywall refinishing, electrical work, hardwood flooring, wall and floor tile and cabinet refinishing. 

I do not take much out as compensation, because I want the companies to thrive.I am also a licensed professional engineer, and work for a company and receive a W2 from that company.

He won't recommend repairs or replacements unless it's really needed

Think of each as replacing the word market with the word advantage. 

You will want to replace them with your own most likely anyway.