Ask Your Question

Angie's List Answers is the trusted spot to ask home improvement and health questions and get answers from service companies, health providers and consumers. For ratings and reviews on companies in your area, search Angie's List.

Top 30 Days Experts
Rank Leader Points*
1 kstreett 240
2 Guest_9020487 110
3 Guest_9190926 105
4 GoldenKid 100
5 ahowell 95
6 KnowledgeBase 95
7 skbloom 80
8 Guest_98024861 70
9 Guest_9311297 70
10 Guest_9400529 70

*Updates every 4 hours

Browse Projects By Category

Question DetailsAsked on 5/19/2017

I have a 1200 square ft house with one bathroom. The galvanized pipe under my house is leaking and needs to be repl

I need a galvanized pipe replaced under my house. Sewer pipe. What would it cost. 1200sq ft with one bathroom.

Do you have the same question? Follow this Question

1 Answer


I would very strongly suspect it is actually cast iron, not galvanized steel if it is sewer as opposed to a water supply line, unless someone did some screwy DIY plumbing. [Water supply lines would normally be 3/4" or 1" pipe, 3" or 4" or occasionally larger for DWS - Drain, Waste, and Sewer pipe].

Plumbing is obviously your Search the List category. Repair cost of course depends sometimes quite a bit on accessibility (especially if crawlspace is real tight or dirty or nasty or if pipe is under concrete - worst case is if under a slab in a tight crawlspace, or embedded in a concrete structural above-grade slab). And cast iron or galvanized is a bit more expensive to repair but not dramatically so compared to plastic or (for water) copper.

A simple pinhole or connection leak repair will typically run in the $100-250 range for accessible pipe, closer to $500 plus or minus a hundred or two for pipes under a slab. Can of course run more in unusual cases, or if the pipe is so corroded or deteriorated that a long section needs to be replaced to either remove the damaged sections (if you so desire) or lesser amounts to get to a point where it is intact enough to hook into. Badly corroded old lines sometimes you have to chase 5-10 feet to get to a "good part" you can reasonably tie into without destroying it with the connection.

IF a sewer line (mroe so than water lines) you will possibly also have the option of having the damaged pipe replaced (assuming it is not just a leaking joint that can be disconnected, doped up with plumbers dope or teflon tape, and remade up), or perhaps (depending on situation) repaired with a clamp-on or fiberglass wrap-around repair - which will typically last 10-20 years as opposed to the 50 or more years for normal pipe. [The clamp-on repairs look similar to this (the one shown is actually a slip-on coupling but real similar) -

For water lines, there are similar clamp-on repairs, but usually cutting out the bad part and coupling/soldering/gluing a new piece in takes little longer and avoids the issue of counting on a clamp-on repair holding against the typically 30-70 psi in a water system versus the zero to very few psi pressure in a household sewer line.

Answered 3 years ago by LCD

Related Questions

Terms Of Use
Privacy Policy