Underground water leaks can be tricky to spot, but ignoring them can lead to skyrocketing water bills, foundation damage, and mold growth. Whether it’s a small leak or a major break in the pipeline, early detection is key to preventing costly repairs. At MJS Plumbing & Heating Inc., we offer expert leak detection in Bedford and commercial water leak detection services to help homeowners and businesses find and fix hidden leaks before they cause major damage.

Common Signs of an Underground Water Leak
Not all leaks are visible. Since underground pipes are buried beneath your yard, driveway, or foundation, you need to look out for subtle warning signs.
1. Unexplained Increase in Water Bills
If your water bill has suddenly spiked, but your usage hasn’t changed, there’s a good chance you have an underground leak. Even a small, continuous leak can waste thousands of gallons of water over time.
2. Wet Spots or Puddles in Your Yard
Are there soggy patches in your yard, even when it hasn’t rained? Underground leaks can cause water to seep up to the surface, creating wet or sunken areas.
3. Low Water Pressure
A sudden drop in water pressure throughout your home or business could indicate a leak in the main water line. If there’s no obvious reason for the pressure loss, it’s time to investigate.
4. Cracks in Walls or Foundation
Water leaks can wash away the soil beneath your home, leading to foundation shifts and cracks in walls, floors, or driveways. If left unchecked, this can cause serious structural issues.
5. Mold or Mildew Growth
Excess moisture from an underground leak can lead to mold growth, especially in basements or crawl spaces. If you notice a musty smell or see mold spreading, a hidden leak could be the cause.
6. The Sound of Running Water
If you hear water running when no taps are open, there may be a hidden leak. Try turning off all water sources and listening closely—if the sound persists, it’s time for professional water leak detection methods.
Water Leak Detection Methods
Finding an underground leak requires specialized equipment and expertise. Here are some of the techniques we use for leak detection in Bedford and surrounding areas.
1. Acoustic Leak Detection
This method uses sensitive listening devices to detect the sound of water escaping from underground pipes. Plumbers use special microphones and amplifiers to pinpoint the exact location of the leak.
2. Infrared Thermal Imaging
Thermal cameras can detect temperature changes caused by escaping water. This method is particularly useful for detecting leaks under concrete slabs or inside walls.
3. Pressure Testing
By isolating different sections of the plumbing system and monitoring pressure changes, plumbers can identify leaks without having to dig up large areas.
4. Tracer Gas Detection
This method involves injecting a non-toxic gas into the water line. The gas escapes through the leak and rises to the surface, where it is detected using specialized sensors.
5. Video Pipe Inspection
A small camera is inserted into the pipes to provide a real-time view of any damage, cracks, or leaks. This is one of the most accurate water leak detection methods available.
Why Professional Leak Detection Matters
Trying to locate an underground leak on your own can be time-consuming and ineffective. Our commercial water leak detection services use advanced technology to find leaks quickly, minimizing damage and repair costs. Whether it’s a residential property or a commercial building, we ensure accurate detection and efficient repair solutions.
FAQs About Underground Water Leak Detection
1. How do I know if I have an underground water leak?
Look for signs of an underground water leak like wet spots in your yard, low water pressure, unexplained high water bills, or foundation cracks. If you suspect a leak, call a professional for inspection.
2. Can a leak cause foundation damage?
Yes, prolonged water leaks can erode the soil beneath your home, leading to foundation shifting and structural damage.
3. How long does a leak detection service take?
Most leak detection services can be completed within a few hours, depending on the complexity of the plumbing system.
4. Can I fix an underground water leak myself?
Locating and repairing an underground leak requires specialized equipment and expertise. It’s best to hire a professional to avoid further damage.
5. Do you offer emergency leak detection?
Yes! At MJS Plumbing & Heating Inc., we provide emergency leak detection in Bedford to quickly locate and repair hidden leaks before they cause major issues.
Contact Us for Professional Leak Detection Services
If you suspect an underground leak, don’t wait until the damage gets worse. Our expert commercial water leak detection services can pinpoint the problem and provide fast, reliable repairs. Contact MJS Plumbing & Heating Inc. today to schedule an inspection!