Whole-home repiping is one of the biggest plumbing projects a Dallas County homeowner ever tackles. Cost varies a lot by home size, material, and access — but the ranges are predictable if you know the drivers.
The 5 drivers that set the price
- Home size — Every additional bathroom adds material and labor time
- Story count — Two-story homes need more attic work and more time
- Material — PEX-A is 30–40% cheaper than Type-L copper for the same layout
- Access — Slab-on-grade with attic access is easier than crawlspace with hard ceilings
- Drywall patch — Bundled with the plumber vs. contracted separately
Typical Dallas County ranges (2025)
- Small single-story (1–2 bath, ~1,200 sq ft) in PEX — lowest tier
- Standard 3-bed/2-bath single-story (~1,800 sq ft) in PEX — mid-lower tier — this is our most common Addison job
- Two-story 3-bed/2.5-bath (~2,500 sq ft) in PEX — mid tier
- Larger 4+ bath home in PEX — upper-mid tier
- Same house in Type-L copper — add roughly 30–40%
- Historic estate with delicate finishes — add for careful planning and small-cut access
These are ranges — the exact number depends on the specifics. We quote flat, on-site.
PEX vs. copper — the honest tradeoff
PEX-A wins on price, freeze resistance (huge after Uri), quiet operation, and hard-water resistance (no scale build-up). 25-year manufacturer warranty. This is what we install in 80% of Dallas County repipes.
Type-L copper is the traditional choice — proven, code-accepted everywhere, and required in some historic renovations. Costs more; more labor-intensive; freezes and cracks; can pinhole on hard water over time.
If you have no specific reason to pick copper, pick PEX-A.
What is included in a proper repipe
- All hot and cold supply lines from main to every fixture
- New shutoffs at every fixture
- New water heater connections
- Pressure test to 100 psi held for 30 minutes
- City plumbing inspection scheduled and coordinated
- Passing paperwork for your file / resale
- 1-year labor warranty + 25-year manufacturer material warranty (PEX)
Drywall patch is quoted separately. Some homeowners take our patch bundle; others prefer to hire a painter. Both are valid.
How to know it is time
If your home is pre-1985 with original galvanized or copper, you are on borrowed time. If you have had two slab leaks in five years, repiping overhead in PEX beats waiting for #3. If your water pressure has been dropping over years — that is scale eating your interior pipe diameters.
Get a flat quote before you decide. We give free repipe estimates across Farmers Branch, Carrollton, and Addison — no obligation.
Belt Line Plumbing expert insight
This guide reflects what our licensed Texas RMP plumbers see on real cost & insurance calls across Addison, Farmers Branch, Carrollton, and the greater Dallas North Tollway corridor. Belt Line Plumbing Co. has served the Addison area since 2007, with 412+ five-star reviews from north Dallas homeowners, property managers, and Belt Line Restaurant Row operators.
Local factors that affect the advice above: North Texas expansive clay soil drives most residential slab and sewer failures; Dallas Water Utilities supply water at 8–11 grains of hardness per gallon shortens every water heater and tankless system without a softener; and the February 2021 Winter Storm Uri freeze exposed attic supply lines across almost every 1970s–2000s Addison home. If your situation includes any of these local realities, factor them in before deciding between repair, replacement, or a preventive upgrade.