Repiping in McLean often involves homes with several bathrooms, where aging copper or older galvanized lines have started to leak or lose pressure. The median home dates to 1976, with plenty of houses older and newer than that. Call the number on this page to be connected with a local plumber in McLean.

McLean homes and what's in their walls
McLean is an established inner suburb about nine miles from downtown Washington, with neighborhoods such as Langley, Lewinsville and West McLean along routes like Georgetown Pike and Old Dominion Drive. Housing ranges from mid-century homes to newer rebuilds. Older houses can carry galvanized steel supply lines; homes from the 1960s and 1970s mostly have copper; and remodels often leave a mix. A house with several bathrooms makes a repipe a bigger project, but also makes it easier to justify once failures spread.
Fairfax Water supplies McLean. It owns the service line up to and including the meter, and the line after the meter is the customer's. The utility keeps a service line material inventory and asks owners to identify their side through its Lead Free Fairfax survey. Hardness from its Potomac plant averages about 7.5 grains per gallon, enough to scale valves and fittings over the years.
Repipe options compared
| Approach | When it fits | Trade-off |
|---|---|---|
| Spot repair | One leak on pipe that is otherwise sound | Low disruption, but does not stop the next failure |
| Partial repipe | One wing, floor or bathroom group has the bad pipe | Less cost, but old and new pipe still meet |
| Whole-house repipe | Leaks or corrosion on pipe of the same age throughout | Most work up front, one consistent system after |
| Repipe plus service line | The owner's buried line is old or undersized | Adds digging, but covers the whole supply path |
Signs to watch for
- A pattern of pinhole leaks in different rooms
- Discolored water after the house sits unused, such as after a trip
- Pressure that drops when two bathrooms run at once
- Corroded valves that will not close fully
- Repair clamps or mismatched patches along basement runs
Timing notes
Plan a large repipe for a stretch when the household can live with short daytime shutoffs. Winter is a fine time for interior work, but pipe in exterior walls and crawlspaces should be dealt with before the coldest weeks, since that is where old lines freeze. Fairfax County Land Development Services lists permits as required for new, repaired or relocated plumbing, with applications through PLUS; the plumber normally files it.
Repiping questions in McLean
Is a partial repipe ever enough?
Should the buried line from the meter be replaced along with the indoor pipe?
Does a whole-house repipe need a permit here?
Will a repipe fix weak water pressure?
More plumbing services in McLean
Repiping nearby
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