Mainline Leak Detection

11/04/2026

Another leak located in Logan's Reserve!
Today's call involved a homeowner who recently had their water meter replaced. During the replacement, the technician discovered a leak on the buried water service line between the street and the home.
Because the leak was located before the water meter, it had potentially been leaking for an unknown amount of time.
Using professional leak detection equipment, Mainline Leak Detection was able to efficiently pinpoint the leak beneath the driveway.
The benefit? By accurately locating the leak, the homeowner can pursue a targeted repair rather than unnecessary excavation or potentially replacing the entire water service line.
This is why accurate leak detection matters!
If you've noticed an unexplained increase in your water usage, suspect a hidden leak, or have been told you may have a leak on your underground water line, don't start digging until you know where the problem is.
Let Mainline Leak Detection help you find it!
Personal service. Professional results.

📞 410-746-4961
🌐 www.mainlineleak.com


Serving homeowners throughout the surrounding area.

11/04/2026

Another leak located in Logan's Reserve!
Today's call involved a homeowner who recently had their water meter replaced. During the replacement, the technician discovered a leak on the buried water service line between the street and the home.
Because the leak was located before the water meter, it had potentially been leaking for an unknown amount of time.
Using professional leak detection equipment, Mainline Leak Detection was able to efficiently pinpoint the leak beneath the driveway.
The benefit? By accurately locating the leak, the homeowner can pursue a targeted repair rather than unnecessary excavation or potentially replacing the entire water service line.
This is why accurate leak detection matters!
If you've noticed an unexplained increase in your water usage, suspect a hidden leak, or have been told you may have a leak on your underground water line, don't start digging until you know where the problem is.
Let Mainline Leak Detection help you find it!
Personal service. Professional results.

📞 410-746-4961
🌐 www.Mainlineleak.com


Serving homeowners throughout the surrounding area.

Mainline Leak Detection pinpoints hidden water, slab, underground and sewer line leaks across South Central Pennsylvania using advanced technology.

10/28/2026

💧 Leak located at a county landfill!

Water surfacing near a filling station led to a closer look at an underground water line. Using pressure testing, utility locating, and acoustical equipment, Mainline Leak Detection identified a leak on a 2-inch copper service line.

The leak area was marked for excavation and repair, and the affected line was isolated to help prevent further water loss.

Accurately locating leaks while minimizing damage and repair costs.

📞 410-746-4961
🌐 www.mainlineleak.com

09/14/2026

🔥 12-Inch Fire Line Leak Located in Central Pennsylvania 🔥

A large distribution center contacted Mainline Leak Detection after its underground 12-inch fire line began losing water, causing the facility’s fire pumps to run continuously.

Following diagnostic testing of the system, the leak was successfully identified and marked beneath the parking lot—helping the customer focus excavation and repairs on the affected area while minimizing unnecessary damage and disruption to the facility.

Large-diameter fire lines and expansive commercial properties require specialized equipment, experience, and a systematic approach. Mainline Leak Detection provides non-destructive diagnostic services for commercial, industrial, and municipal water systems throughout Pennsylvania.

📞 410-746-4961
🌐 www.mainlineleak.com

Accurately locating leaks while minimizing damage and repair costs.

08/20/2026

Geothermal Leak Detection — Leak Located & Confirmed

A few weeks ago, we shared an upcoming leak detection project involving a large geothermal heating and cooling system at a Pennsylvania school district.

The system consists of 24 geothermal circuits, approximately 240 underground wells, and several miles of buried piping. Three circuits were suspected of leaking, presenting a challenging diagnostic project due to the size of the system and the very small amount of water loss.

After extensive diagnostic testing and surveying, Mainline Leak Detection successfully isolated and located a small underground leak and marked the area for excavation.

A contractor later excavated at the marked location and confirmed the leak at a buried pipe joint.

Small leaks on large geothermal systems can be particularly difficult to locate. Minimal water loss can produce very little detectable sound, while the amount of underground piping makes narrowing down the source even more challenging.

Finding and marking the leak before excavation allowed the repair contractor to target a specific area rather than searching through thousands of feet of buried geothermal piping.

Leak located. Excavation completed. Location confirmed.

Mainline Leak Detection
Accurately locating leaks while minimizing damage and repair costs.

08/03/2026

🔍 Drain, Sewer & Septic Line Problems? Find the Issue Before You Dig.

Mainline Leak Detection provides professional camera inspection and diagnostic services for drain, sewer, and septic piping to help determine the location and cause of pipe issues.

Using specialized inspection and locating equipment, we can help identify:

🔹 Cracked, broken, or damaged piping
🔹 Pipe separations and failed connections
🔹 Bellies, low spots, and standing water
🔹 Root intrusion and obstructions
🔹 Collapsed or restricted sections of pipe
🔹 Sewer line routing and approximate depth
🔹 Areas of concern beneath slabs, buildings, yards, and paved surfaces
🔹 Septic line issues between the structure, tank, and system components

When accessible, we can electronically locate the camera head from above ground, helping mark the route and approximate location of problem areas before excavation or repair begins.

Whether you’re a homeowner, plumber, property manager, contractor, or facility manager, accurate diagnostics can help reduce unnecessary excavation, guesswork, and repair costs.

📞 Mainline Leak Detection
410-746-4961
🌐 www.mainlineleak.com

Accurately locating problems while minimizing damage and repair costs.

08/03/2026

🚨 STAY TUNED… This One Should Be Interesting. 🚨

Mainline Leak Detection is preparing for an upcoming multi-day geothermal leak investigation for a school district.

This geothermal system is the primary source of heating and cooling for the entire school and consists of 24 underground circuits feeding 240 geothermal wells, with several miles of underground piping connecting the system.

Currently, 3 of the 24 circuits are leaking—and somewhere within all that underground piping is the source of the problem.

Finding it will require a methodical approach, specialized leak detection equipment, acoustical diagnostics, and potentially tracer gas to help narrow down the source.

This is the kind of challenging investigation where patience, experience, and following the evidence one step at a time really matter.

24 circuits. 240 wells. Several miles of piping. 3 leaking circuits.

💧 Can we find the leaks? Stay tuned…

07/29/2026

🌧️ A Few Thunderstorms Don’t End a Drought… 💧

While many of us were thankful to see the rain roll through last night, we’re still experiencing severe drought conditions. Every gallon of water matters, and unfortunately, thousands of gallons can be lost each month from a hidden plumbing leak without the homeowner ever realizing it.

Underground water service lines, leaking pipes beneath concrete slabs, well lines, irrigation systems, and other concealed plumbing leaks often go unnoticed until they cause unusually high water bills, property damage, or water begins surfacing where it shouldn’t.

Not only do hidden leaks waste one of our most valuable natural resources, but they can also lead to costly repairs if left unaddressed.

If you’ve noticed:
💧 An unexplained increase in your water bill
💧 The sound of running water when nothing is in use
💧 Damp areas in your yard or home
💧 A water meter that continues to move when all fixtures are off

…it may be time to have your plumbing system professionally evaluated.

At Mainline Leak Detection, we specialize in accurately locating hidden leaks while minimizing unnecessary damage and repair costs. Finding and repairing leaks quickly not only saves money—it also helps conserve water when our communities need it most.

Let’s all do our part to protect this valuable resource.

07/28/2026

💧 One leak turned into two—but accurate diagnostics saved time, money, and unnecessary excavation.

Mainline Leak Detection was recently called to a townhouse community after water began surfacing through the middle of a newly paved parking lot. Based on where the water was visible, the plumbing contractor was preparing to excavate directly in the middle of the new pavement.

After performing a complete leak detection survey using acoustical and underground utility locating equipment, we determined the leak was approximately 60 feet away from where the water was actually surfacing. The leak location was marked, and during excavation the plumbing contractor uncovered a pinhole leak in a 2-inch copper water main directly beneath our markings.

Shortly after that repair was completed, water continued to surface, indicating a second leak within the system. We returned to the site, performed another diagnostic survey, and accurately identified a second leak in a different section of the parking lot, allowing the contractor to proceed with confidence.

This job is a great reminder that water rarely surfaces directly above the source of an underground leak. Water follows the path of least resistance, often traveling long distances before becoming visible. Accurate leak detection helps minimize unnecessary excavation, protects newly paved surfaces, and gets repairs completed faster.

If you’re dealing with unexplained water loss or a difficult underground leak, Mainline Leak Detection is ready to help.

📍 Serving residential, commercial, municipal, and HOA properties throughout South Central Pennsylvania .

07/27/2026

Today, while traveling today to Quakertown, PA for a large geothermal leak investigation, I came across this World Trade Center memorial at a local American Legion (Post 184).

It’s always worth taking a moment to stop and reflect on the lives lost, the families forever changed, and the courage of the first responders and everyday heroes who answered the call on September 11, 2001.

Memorials like this serve as a powerful reminder that, even years later, we will never forget.

🇺🇸 Never Forget. 🇺🇸