Repiping means removing worn water supply piping and putting new pipe in its place, usually through the walls, floors and basement ceiling. If a pipe is leaking now, call our 24/7 line at (630) 822-9290. For a planned repipe, dispatch will schedule a walk-through so you can see the plan.
While you decide, learn where your main shutoff is and mark it. Take photos of any stained ceilings or walls and note when the stains appeared. That timeline helps a plumber tell a one-time failure from a pattern.
Why a repipe is a pattern decision, not a single leak decision
One pinhole leak in a section of pipe does not mean the whole house needs new pipe. A second or third leak in different places, within a short period, often does.
The reason is that pipe wears from the inside. Water chemistry, flow speed and the age of the metal act on the whole system at once, so a failure in one spot says something about every other spot.
Signs your pipes may be near the end
No single sign proves the point. Several together are worth a plumber's time.
- Repeated leaksLeaks at different spots within a few seasons often mean the pipe material is failing, not just one joint.
- Brown or rusty waterWater that runs brown when you open a tap after a long pause can mean corrosion inside older steel pipe.
- Falling pressureNarrowing inside old pipes can reduce flow at showers and upstairs sinks.
- Green or white crustMineral crust on fittings and pipe surfaces is a leak or corrosion clue worth checking.
- Damp spots with no sourceStaining on a ceiling below a bathroom, with no drain leak, points to supply lines.
Copper and PEX compared for a Darien house
Both are accepted choices for supply piping. Which one fits depends on the house and your plan.
| Question | Copper | PEX |
|---|---|---|
| How is it installed | Cut and soldered joints, rigid runs | Flexible tubing, fitted at connections |
| Walls and ceilings | More wall opening to run straight sections | Can snake through with fewer openings |
| Look and feel | Traditional, familiar to inspectors | Common in new construction today |
| Freezing risk | Can split if frozen solid | More forgiving, but still protect from hard freezes |
| Exposure to sunlight | Not an issue | Must stay out of sunlight |
Many homes use a mix, such as copper at the meter and PEX in the walls. Ask the plumber what fits your layout.
What the age of a Darien house tells us
Darien was incorporated in 1969 by residents of the Marion Hills, Brookhaven, Farmingdale and Hinsbrook subdivisions, and houses there range from the 1960s forward. Some have original piping, some have been partly replaced and some mix both.
That mix is why we begin with a look, not a quote. We trace which pipe is original, which was patched and where the old and new join. Those joints are common leak spots, so they affect the plan.
A separate question is the service line from the water main to your meter. Darien reports that it has built a service line material inventory and is still filling in missing records. Ask the City water operator at (630) 353-8105 what is recorded for your address, since that pipe is outside the repipe.
How a repipe is staged, from first look to final test
- 1
Walk-through
A plumber maps the main shutoff, the meter, each fixture and the access points.
- 2
Plan the routes
We choose runs through the basement ceiling, closets and walls to limit wall openings.
- 3
Water off, new pipe in
Water is shut off in stages while new lines are run and connected, floor by floor.
- 4
Pressure test
The new system is tested for leaks before any wall is closed.
- 5
Wall repair
Small access holes are left for patching. Finish painting is a separate trade.
Spot repair, partial repipe or whole house
If only one branch has failed, such as the lines to a single bathroom, a partial repipe may fix the problem. A whole house repipe makes more sense when the same pipe runs through the entire house and has already failed in several places.
Before choosing, we will often suggest a leak detection visit to find hidden weak spots, or a burst pipe repair if water is already loose. Those steps show whether you have a local problem or a house-wide one.
New pipe, fittings and supports are chosen to meet the standards in the Illinois Plumbing Code (Title 77, Part 890 of the Illinois Administrative Code), and we follow the pipe maker's manufacturer guidelines for joints and spacing.
What decides the cost of a repipe
There is no flat figure for a repipe. These are the real factors, and we explain each when we walk the house.
Want an honest plan for your house? Call (630) 822-9290.
Safety steps before and during a repipe
A repipe is safe when the basics are handled first.
- Water offShut the main supply and open a low tap to drain the lines before any pipe is cut.
- Protect finishesCover floors, furniture and stairs along the work path.
- Dust and old materialsOpening walls makes drywall dust. Older houses may have old insulation or coatings, so keep children and pets out and tell the plumber about any concerns.
- Permit checkAsk the City of Darien Community Development Department what your project needs before work starts.
Seeing brown water or repeat leaks?
Call and describe where the pipes are leaking. We will say whether it looks like a spot fix or a larger plan.
Getting your home ready for a repipe
Repiping questions from Darien homeowners
Dispatch answers 24/7 at (630) 822-9290, and repipe walk-throughs are booked by appointment. If a pipe is actively leaking, tell dispatch so you are not left waiting for a planned slot.
It depends on the size of the house and access. Many are done over several days, with water restored each evening when possible. The plumber gives you a schedule at the walk-through.
Some openings are needed, usually small access holes. PEX can often be fed through existing cavities, which helps. We explain where openings go before work starts.
No. The water service line from the main to the house is a separate project. See our water service line repair page, and ask the City water operator what records exist for your address.
After a repipe, run taps until the water is clear and flush each fixture. If you have a specific concern about your water, ask the City water operator or test your tap.
Yes. We serve Woodridge, Willowbrook and nearby towns. Give dispatch your address for scheduling.