For a typical Idaho home of 1,800 sq ft with 2 bathrooms on one floor, a full repipe in PEX runs about $5,500 to $10,200. Idaho plumbers earn about 19 % less than the US average, so a repipe here costs less than the US-average estimate. Treat that as a starting point. Call, and a local repipe company will come look at your house and give you a fixed price, at no cost to you, so you know the real number before anything starts.
Repipe prices in Idaho by house size
Bathrooms and square footage drive the price, not bedrooms. A house with 3 bedrooms normally has 2 baths. These Idaho figures assume PEX, the bendable plastic pipe that's usually red on hot lines and blue on cold.
| Home | Stories | Baths | Estimated Idaho cost |
|---|---|---|---|
| 1,200 square feet | 1 | 1 | roughly $3,600–$6,700 |
| 1,800 square feet | 1 | 2 | roughly $5,500–$10,200 |
| 2,400 square feet | 2 | 3 | roughly $7,000–$14,000 |
Each of these prices assumes a crawl space, the low open area beneath a raised floor. From there a crew gets to the pipes without cutting any concrete.

Pipe choice and foundation: how they shift the price
What your house sits on and which pipe you pick move the number quite a bit. Here's how the estimates look for a 2-bath, single-story Idaho home of that size.
| Your pick | Estimated Idaho cost |
|---|---|
| PEX above a crawl space | roughly $5,500–$10,200 |
| CPVC above a crawl space | roughly $6,400–$11,100 |
| PEX laid on a slab | roughly $7,200–$14,100 |
| Copper above a crawl space | roughly $8,100–$16,300 |
With CPVC, you get rigid cream or tan plastic pipe. A slab means a concrete floor poured right on the ground, with pipes running beneath or inside it, so the job needs more labor. Copper, soldered metal pipe, costs the most.
Why does labor cost less in Idaho?
About 70 % of a repipe bill is labor, per Angi. Idaho plumbers average $28.10 an hour versus $34.70 nationwide. Counting the 50 states plus DC, that makes Idaho the 9th cheapest of 51.
With US-average labor, the same house runs about $6,400 to $11,800, and in Washington it's about $7,400 to $13,700. Idaho comes in around $5,500 to $10,200. Idaho has 3,090 employed plumbers, according to the Bureau of Labor Statistics.
Old pipes you might find in Idaho homes
Idaho's homes are some of the newest in the country: the median home was built in 1992, and only six states have newer housing. Even so, the spread of build years means some pipes deserve a look.
- Galvanized steel: 17.5 % of Idaho homes went up before 1960, when this pipe was in wide use.
- Polybutylene and Kitec: 23.3 % date from 1980 to 1999. That window overlaps the polybutylene era (1978 to 1995) and the early years of Kitec (1995 through 2007).
- Newer pipe: 38.2 % date from 2000 or later.
Not sure what you have? Peek under a sink and use the site's pipe identifier, which matches what you see and feel to one of eight pipe types. If it turns out to be polybutylene or galvanized, it's worth a call today.
Is a repipe worth it?
One cost guide sums it up: once low pressure, discoloration, or leaks show up in more than one part of the house, a repipe usually makes sense (Fuse Service). Call now, and a local repipe company will see your house and give you a fixed price, at no cost to you.
Staying home during a repipe
Most families stay in their homes while the crew works, according to one repipe company (Repipe Solutions).
Permits and checking your plumber's license
A national guide lists permit fees of $50 to $800, so ask up front whether that's included in your price. The Idaho State Plumbing Board (DOPL) licenses plumbers in the state. Look up your plumber there before signing anything.
In Idaho, the state issues the permits
Plumbing permits in Idaho are handled at the state level. The licensing division issues the permit and does the inspection, though cities and counties may still charge for their own. The state code follows the 2015 Uniform Plumbing Code, plus changes made in Idaho. If you own a single or duplex home, you may repipe it yourself. A permit from the Division is still required first.
Nearly 1 in 4 Idahoans get their drinking water from a private well rather than city water. Nationwide, the share is only 15 percent, which is far lower. No federal regulation covers private well water.
How to get a fixed repipe price for your house
Quotes for identical work can swing by $2,000 to $5,000, one national guide found. The call on this site links you to a repipe company serving your corner of Idaho, and it costs you nothing. The company sees your house first, then gives you a fixed price.
