PEX is flexible plastic tubing that's usually faster and less expensive to install, which suits Lakewood's single-story slab homes repiped through the attic. Copper is rigid metal pipe that handles heat and UV well and is preferred by some owners. Both are code-approved when installed correctly.
Side-by-side
| Factor | PEX | Copper |
|---|---|---|
| Installed cost | Usually lower | Usually higher |
| Installation | Flexible, fewer fittings, faster | Rigid, soldered or pressed joints |
| Attic and wall routing | Easy to snake through | More cutting and fittings |
| Heat and UV | Must be protected from sunlight | Tolerates heat and UV |
| Freeze tolerance | More forgiving | Can split when frozen |
| Noise | Quieter water flow | Can transmit water hammer noise |
| Common perception | Modern standard | Traditional, premium |
Whole-house repipes run about $1,500 to $15,000 nationally, per Angi's 2026 repipe cost guide, which notes PEX usually costs less than copper.
Which is right?
- PEX fits most Lakewood slab homes where lines run through the attic and down walls, and where budget and speed matter.
- Copper fits exposed runs, owners who prefer metal, and situations where heat or UV exposure is likely.
- Mixed systems are common: copper at exposed stubs and the water heater, PEX in walls.
Not sure what you need? Talk it through by phone.
Call (708) 350-9399Lakewood context
Original galvanized pipe from 1950–53 is the usual reason for repiping here. See galvanized pipes in Lakewood homes. Repipes generally need a Lakewood plumbing permit. See repiping and the repiping cost guide.
What should you ask on the call?
- Which option fits the condition and layout of my home, and why?
- What extra work would each option need, such as gas line, venting, electrical, drywall or a permit?
- What's the expected lifespan and maintenance for each?
- What warranty comes with the parts and the labor?
- Can I get prices for both options, itemized the same way?
The right answer often depends on things only a site visit can show, like pipe condition, gas line size and available space. A good provider will explain the trade-offs rather than push one option.
What about Lakewood homes affects this choice?
Most Lakewood houses were built between 1950 and 1953, according to the City of Lakewood's history. They're mostly single-story homes on concrete slabs, with the water heater in a garage, closet or outdoor shed, and many still have some original galvanized supply pipe and early sewer laterals. That shapes the options: attic routing makes repipes simpler, garage heaters raise placement and permit questions, older gas lines may need upsizing for tankless units, and old laterals may not suit aggressive cleaning. The Lakewood Building and Safety permits page lists which projects often need a permit.
How was this guide researched?
This guide was written for Lakewood, California homeowners and checked against the sources below on November 11, 2026. Rules and prices change, so confirm anything important with the agency or provider. See our editorial policy.