By Gold Country Plumbing of El Dorado Hills · Updated March 10, 2025
El Dorado Hills has a healthy mix of housing stock — 1980s and '90s tract homes with original copper, custom builds from the 2000s, and everything in between. A lot of that original plumbing is now old enough that homeowners are fielding repeated pinhole leaks, discolored water, or a slab leak diagnosis, and asking the same question: what does it actually cost to repipe a whole house here?
The honest answer is 'it depends,' but not vaguely — a handful of specific factors reliably drive the number up or down. This guide breaks those down with real planning benchmarks so you can budget with confidence before you get quotes.
Copper vs. PEX: the biggest cost decision
The material choice affects price more than almost anything else. As a Sacramento-region planning benchmark, a full copper whole-house repipe runs around $10,676 on average industry cost indexes, while a PEX repipe for a comparable home runs closer to $5,675. That's a substantial gap, and it comes down to material cost and labor time — copper requires soldered joints at every fitting, while PEX uses crimp or expansion fittings that install faster and with fewer failure points at joints.
PEX has become the more common choice for whole-house repipes in newer work because of that cost advantage and its flexibility in tight crawl spaces, though some homeowners still prefer copper for its long track record, rigidity, and resistance to rodent damage in exposed areas.
What drives the price within either material
Two identical-sized homes can get very different repipe quotes depending on these factors:
- Home size and number of fixtures — more bathrooms and water-using appliances mean more running feet of pipe and more connection points
- Foundation type — slab-on-grade homes typically require running new lines through attics and dropping down through walls, which is more labor-intensive than a raised foundation with crawl-space access
- Number of stories — multi-story homes add complexity for routing supply lines vertically
- Wall and drywall repair — repiping usually requires opening some drywall for access; the cost of patching and repainting is a separate line item worth clarifying upfront
- Permit requirements — El Dorado County and the City of Folsom both require permits for whole-house repiping, which adds a modest but necessary cost
Whole-house repipe vs. targeted repair
Not every home with aging pipes needs a full repipe. If failures are isolated — one or two pinhole leaks in an otherwise sound system — targeted leak detection and repair is the more cost-effective path, with planning benchmarks around $200–$600 for detection and a repair cost that varies by location and accessibility. Whole-house repiping tends to make financial sense once you've had multiple unrelated leaks, the home still has original galvanized steel supply lines (which corrode from the inside and are well past their service life almost everywhere by now), or a pre-listing inspection flags widespread pipe deterioration.
How EID water quality factors into the decision
El Dorado Irrigation District water is moderately hard across much of the El Dorado Hills service area, and hard water accelerates internal corrosion and mineral scale buildup in copper pipe over decades. Homes on original 1980s–90s copper that are now showing multiple leaks are often reaching the natural end of that pipe's service life faster than they would in a soft-water region — one more reason repiping conversations tend to come up sooner here than in some other parts of the country.
Financing and phasing a repipe
A whole-house repipe is a significant investment, and it doesn't have to happen all at once if budget is tight. Some homeowners phase the work by floor or by wing of the house, prioritizing areas with active leaks or the highest-risk original galvanized runs first. Ask your plumber whether phasing makes sense for your specific layout — it can spread the cost over time while addressing the most urgent risk immediately.
Getting an accurate quote
Because so much depends on your home's specific foundation, layout, and current pipe material, a phone estimate for a whole-house repipe is never going to be precise. An in-person assessment lets your plumber map fixture count, access points, and drywall impact, and give you a real number rather than a wide range. Gold Country Plumbing provides on-site whole-house repiping assessments across El Dorado Hills and the surrounding El Dorado County communities.