Cast Iron Sewer pipe replacement with PVC pipes

[Xiaoyan Liang]

Hello, 

I have an old house (built in 1900s) and a weeks ago, there are 3+ leaking spots in my cast iron sewer pipes in the basement. Some of the cast iron pipes are rusted/cracked and started to form holes. I tried to use the epoxy putty but it didn't fix the problem. 

A licensed plumber came and recommended to replace all cast iron pipes in the basement and underground pipe with PVC for $5k, is that a good price?  

My question is for the underground pipe, is it required by code to use Schedule 80 PVC in Massachusetts? Because I read that Schedule 80 PVC has thicker walls and can handle higher pressure. 

Is that anything I should look out for? 

Thanks in advance

[Luciano A.]

@Xiaoyan Liang

The price sounds fair but just make sure they pull permits for the work. The city inspectors will look over their work and make sure they did everything correctly thus giving you the assurance you got the job done correctly without having to know anything about plumbing. The permit process can be a pain for trades but it will help you as the owner. 

Best of luck