how much do plumbers usually charge per hour to replace supply and discharge lines, all the material is there.

Question

old lines made of steel I want to upgrade to copper.

Answer 1

If these are for a heating system the change to copper may not be your best course as a homeowner. Copper, while slightly more expensive for the contractors purchase is offset by the speed in which it can be installed, making it a preferred installation in many contractors point of view.
But from a heat loss outlook, all copper piping supplies and returns leads to about a 30% increased annual fuel bill when compared against a black iron piped distribution system. Insulation can minimze this, but the same level of insulation added to the iron brings you right back to the percentile difference.

This is kind of a generic answer for any question that begins "How Much will it cost", when what is meant is how I ensure I pay a fair price and get a decent job done.

Labor costs vary widely depending on locations; materials are a bit more standard. call local supply stores to get Ideas on the cost of materials.
One way to get a true competitive price for the job, regardless of location, is to have contractors bid against one another for the chance to receive your money.
Call at least 5 contractors and schedule them all to come to your home at one time. Show them the entire project you have in mind, describe what you want done. Ask questions like "do you see anything that looks like it may cause a problem?" "Does this require a filing?" etc and let them talk it back and forth. Thank them for coming and ask that all the bids be in three or four days later (set a date that you will review the bids).

By seeing that there are other competent craftsmen interested in doing your job they will be forced to give a realistic price if they want to take your money. Also that visit just gave you an in depth understanding of the exact nature of the scope of work, as the contractors are less likely to put out a line of bull in front of their peers where they can be called out on it.

Review the bids, verify their contractors license, proof of insurance ( I usually ask for a rider specifically covering my job address and myself on the coverage for the specific job, only takes a call from the contractor to their carrier and no additional cost to them), review offered warranties, if any, and contact the references of the two lowest bidders.
Contact the winner and let them know they have the job and you have a deposit ready for them to proceed (25% is normal but 50% is not unusual), and the full payment available upon "Satisfactory" completion. That means everything contracted to be done is complete and working with no apparent problems. Pay the remainder promptly.

I also like to call the other contractors who bid, thank them for their time and if they ask let them know where they fell in the bid. This is useful information for them which they can track to make their bid process more competitive and profitable.

Answer 2

I'm a Boston plumber 80-95 an hour if you provide all the materials (which is unlikely) and it wont be exactly the same if that's how you bought the materials old piping and new are different now new codes means everything could be and most likely will be alot different price varies depending on your location

Answer 3

you need to give more info.

What lines are you talking about.

If you mean a re-pipe job then it would be about 1600.00 for hot and cold.

Then depending o the size of your house also matters.

Answer 4

$10,000 i would leave it alone but if that's what you want go ahead if you have the money i can refer you to a good contractor if you want let me know and i will give you the name