Water Line Repair & Replacement in Alpharetta, GA
Main water line and service line repair and replacement across Alpharetta. Trenchless polybutylene service line replacement, galvanized line replacement, lead pipe removal, curb stop valve repair.
The water line we're talking about here is the service line — the pipe that runs from the municipal main (or the meter) to your house. It's a single point of failure for the entire home's water supply, and in Alpharetta the service lines on homes from the 1978–1996 era are often polybutylene, often blue, and often increasingly prone to failure.
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Service line failures we see in Alpharetta
Polybutylene service line. Blue PB pipe used as service line on a large share of Alpharetta homes built 1978–1996. Fails from chlorinated municipal water exposure, often at fittings, sometimes mid-run. Symptoms: unexplained wet spots in the yard between the meter and the house, gradual water bill increases, low pressure inside the home.
Galvanized service line. Older homes — pre-1960 — may have galvanized service lines that have corroded internally over decades. Reduced flow, discolored water, eventual leak at corroded sections.
Lead service line. Rare in Alpharetta given the housing-stock era, but pre-1960 homes occasionally have lead service portions. Replacement is the only safe long-term answer; some utility programs subsidize or fully fund lead service line replacement.
Service line burst or leak. Sometimes the cause is age (PB or galvanized fatigue). Sometimes it's mechanical damage — a contractor cut the line, soil settlement broke a fitting, freeze damage from an unusually long cold snap.
Curb stop valve failure. The shutoff valve at the property line that the utility uses to isolate your service. When the valve fails, the utility may not be able to fully shut your water off without main work. Failure usually shows up only when someone tries to use the valve.
Locating and diagnosing service line problems
Most service line problems show up as one of three symptoms:
Wet spots between meter and house. Visible at the surface or hinted at by unusually lush grass in an otherwise dry yard. We trace the service line route with electronic locating equipment, then narrow with ground microphones to find the leak point.
High water bill with no internal leak. Meter isolation test confirms the leak is on the supply side. Closing the main shutoff inside the house and watching the meter tells you whether the leak is between the meter and the house's main shutoff (service line) or beyond the main shutoff (interior).
Low pressure throughout the house. Could be a partially-blocked galvanized line, a partially-collapsed PB line, or a curb stop that's been left partly closed. Pressure testing at the meter and at the house identifies whether the loss is between those two points.
Once the problem is located and characterized, we quote either a sectional repair (where the line is sound except at a single point) or a full service line replacement (where the material itself is at end of life or multiple failures are present).
Repair vs full replacement, trenchless vs traditional
Sectional repair. Excavate at the failure point, cut out the affected section, install a new piece, backfill. Best for isolated damage on lines that are otherwise sound (e.g., a copper service line with mechanical damage at one point). Lowest cost.
Full trenchless replacement (pipe pulling). A new line is pulled through the existing line's route from the meter to the house, breaking the old line or following its path as appropriate. Minimal yard disruption — entry and exit pits only. Best for full-length replacement of PB or galvanized service lines where the route is intact.
Traditional open-trench replacement. Full-length excavation, remove old line, install new line, backfill. Required when trenchless can't work — collapsed routes, hardscape obstacles, sharp grade changes. Highest yard disruption but sometimes the only option.
Material for replacement is typically Type K copper or HDPE depending on local code preference and depth requirements. Both are durable, freeze-tolerant where buried below frost line (a low bar in Alpharetta — frost line here is about 6 inches), and have 50+ year service lives.
Permits and utility coordination: service line work in Fulton County requires a permit and coordination with the utility for shutdown windows and final tap connections. We handle both.
Polybutylene service lines and proactive replacement
If your Alpharetta home was built between 1978 and 1996 and you've never had the service line documented or replaced, there's a meaningful chance it's polybutylene. The blue PB used for service lines fails as the polymer degrades from chlorine exposure; failures are unpredictable but increasingly common as these lines pass the 30-year mark.
Proactive replacement before failure is usually less expensive than reactive replacement after a yard sinkhole event. Real estate sales are another common driver — buyers' inspectors who identify blue PB in the yard typically request replacement as a condition of closing.
If you're already doing an interior whole-home repipe on a 1978–1996 home, replacing the service line at the same time is often the most efficient timing — both jobs done, both documented, full PEX-A / HDPE plumbing system at the end.
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Frequently asked
How do I know if my service line is failing?
Three common symptoms: unexplained wet spots between meter and house, high water bills with no interior leak, low water pressure throughout the home. Confirmed by meter isolation testing and electronic line locating.
Is the service line my responsibility or the utility's?
In Fulton County, the service line from the curb stop valve (typically at the property line) to your house is your responsibility. The line from the main to the curb stop is the utility's. Damage on your side is your cost; damage on theirs is theirs.
How long does service line replacement take?
Trenchless: typically one working day. Traditional open trench: two to four days depending on length and surface restoration scope.
Will my homeowners insurance cover service line replacement?
Generally no — service line replacement is treated as deferred maintenance and excluded from standard policies. Some carriers offer a separate service line endorsement as a rider for an additional premium; check your specific policy.
Can you do this without tearing up my yard?
Usually yes — trenchless pipe pulling requires only entry and exit pits and preserves the rest of the lawn. Trenchless requires the existing pipe route to be intact (no severe collapses or sharp redirects) and certain minimum diameters; if those conditions aren't met, traditional trenching is the alternative.