Leak Detection in Oakton

Last reviewed and updated: 2026-09-28

Oakton is an established residential area of Marietta. In this part of the city the plumbing question is usually about age rather than anything exotic: what material was standard when the house was built, how many times it has been repaired since, and whether the water utility is the city or the county.

The practical starting point is the same everywhere: confirm the leak exists at the meter, then narrow it to inside or outside the house before anyone opens anything.

Older housing, older pipe

In Marietta's established neighborhoods a lot of original plumbing is still in service, and it fails in predictable ways.

Galvanized steel corrodes from the inside, progressively narrowing the bore until pressure drops noticeably, and then it perforates. Falling pressure across the whole house is covered under sudden low water pressure. Low pressure in original galvanized pipe is a warning, not just an inconvenience.

Cast iron drains crack and separate at the joints, which is why older homes often present as a recurring drain problem rather than an obvious leak.

Junctions between materials matter as much as the materials themselves. Where a partial repipe joined copper to galvanized steel, dielectric corrosion attacks that connection, so leaks in these houses often appear exactly where earlier work was done.

Buying or selling a house here

A leak changes a transaction, and it is far cheaper to know before contracts than after.

For a buyer, the two things worth establishing are the pipe material and the condition of the sewer lateral. Polybutylene routinely comes up at inspection, can affect insurance and financing in some cases, and gets priced into offers. A camera inspection of the lateral is inexpensive relative to a collapsed line under a mature front garden, particularly on an older property with big trees.

For a seller, a known leak is disclosable. Having it located and documented, with a written report and an invoice, is a considerably stronger position than a buyer's inspector finding damp of unknown origin and everyone assuming the worst.

Document it before anything is closed up

This is the step most people skip, and it costs them twice.

Your water utility will not apply a leak credit without evidence the problem was corrected, Cobb County accepts a repair receipt, a parts receipt, or at minimum a letter explaining what was done. Your insurer works from the probable cause and from whether the failure looks sudden or gradual, because gradual deterioration is one of the exclusions that defeats most claims.

All of that is easy to capture while the repair is open and effectively impossible once the slab is repoured and the wall is patched. Ask for photographs before opening, with the failed pipe exposed, and after the repair; a written statement of what failed and why; and the itemized invoice, emailed rather than handed over as a paper slip.

Pools, irrigation and everything outside the house

Not every leak is indoors, and the outdoor ones are the easiest to miss because they produce no symptom you can see or hear.

Irrigation runs underground, on a timer, usually overnight. A cracked lateral or a valve that will not seat fully wastes thousands of gallons before anything surfaces. Close the irrigation supply and re-check the meter, if it stops, the system is your answer.

Pools lose water to evaporation, so the question is always whether the loss is normal. Roughly a quarter to half an inch a day in a Georgia summer is expected. The bucket test settles it, and whether the loss changes with the pump running tells you which side of the plumbing is at fault. An automatic fill valve will mask the whole thing, which is why pool leak detection begins with the bucket test, the level stays perfect while the bill climbs.

The buried service line from the meter to the house is yours, not the utility's. Watch for a strip of lawn that stays soggy or grows greener than everything around it.

Which water utility bills you here

Billing is mixed across this part of Marietta. Some addresses fall inside the City of Marietta utility service area and are billed by Marietta Power & Water; others are served by Cobb County Water System. They run separate leak credit processes with separate paperwork, so check the utility name printed on your bill before applying for a credit.

Local notes

In houses that have been extended or remodelled over the years, new plumbing was often run through old structure. Those additions are worth flagging when you call, because the junction between a later bathroom and the original system is a common place for a concealed leak to start.

Frequently asked questions