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Water Leak Detection & Repair in Montgomery County

If left undetected, a plumbing leak can quickly become disastrous. Instead of risking damage to your home, contact a professional as soon as you notice a possible leak.

Donnelly’s Cooling, Heating & Plumbing has you covered with leak detection and repair services in Montgomery County. Our licensed and insured technicians have the knowledge and equipment to locate water leaks in ceilings, walls, garages, underground, and other areas on your property. Whatever the severity of the leak, you can count on us for a long-term fix.

Contact us online today to schedule leak detection and repair in Lansdale, PA.  

5 Signs You Have a Plumbing Leak

In addition to ruining insulation, drywall, and carpeting, a leak can cause wood rot, mold growth, foundation problems, and structural issues. Hidden or underground leaks are especially challenging because they can go unnoticed for an extended duration, leading to costly damage. That’s why it’s critical to be vigilant and always call an expert to be safe.

Here are five signs you have a plumbing leak at your home:

  1. Higher water bills: Unless you know that your water usage increased, a significantly higher water bill likely indicates a leak.
  2. Mildew or mold: Whether you have mold from a leaking pipe, water leaking into the basement, or something else, it can cause serious property damage and health hazards for your family.
  3. Lower water pressure: If you’re using only one fixture and notice less water pressure, there may be a leak.
  4. Water spots on ceilings: If there’s a discolored stain on the ceiling below an upstairs bathroom, you probably have a leak somewhere in that bathroom.
  5. Damaged flooring: Soft spots, warping, or loose flooring are usually synonymous with a leak.

Common Causes of Home Water Leaks

Water leaks occur for different reasons. Here are a few common causes of home water leaks:

  • Broken seals: The longer you have your appliances, the more likely your seals will wear down and break, eventually causing a leak.
  • Corroding pipes: Consider replacing your pipes if there’s a leak from older, discolored pipes.
  • Sudden temperature changes: Quick temperature changes can force your pipes to expand and contract, increasing the risk of your pipes cracking and causing a significant leak.
  • Loose water connectors: The pipes and hoses that provide water to your appliances may become loose from shifting, causing a leak.

How Our Plumbers Detect & Repair Leaks

Our team will determine the exact location of your leak with a video camera inspection and other high-end technology. Our technicians will then determine the best repair method and resolve the leak as soon as possible.

We offer these water leak repair services in Montgomery County:

Choose Us for Leak Detection & Repair in Greater Philadelphia area

Donnelly’s Cooling, Heating & Plumbing has been in business since 1972. In that time, we’ve provided top-notch water leak detection and repair services for countless residents in North Wales, Blue Bell, Ambler, and surrounding areas. We offer same-day services, emergency services, and financing options, so you never have to delay calling a professional.

Contact our team today to get a free estimate on leak detection and repair services.

Leak Detection & Repair FAQs


While the typical policy won’t cover damage from insufficient maintenance, it will cover damage from an accidental leak.

You can reduce the possibility of a leak developing by repairing damaged fixtures and faucets, securing loose pipes, and staying current with regular plumbing inspections.
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We were extremely satisfied with the service provided by Donnelly’s. From start to finish, they were extremely professional and kept us informed every step of the way. Our technician, Mike Wilson, was fantastic. He was very knowledgeable and courteous. We were very happy with the project…

Anthony M.

Anthony M.

Donnelly’s Heating, Cooling & Plumbing provided excellent service for our home. Domingo C. was very knowledgeable and answered all of my questions (and there were many!). We ended up with an issue, and he stayed until it could be resolved. Jake H. and his skilled team…

Jill C.

Jill C.

Can’t say enough about how great my water heater replacement experience was. Service tech, Joe was the best; Knowledgeable, professional, and kind - he did such a great job. I highly recommend contacting Donnelly’s for your plumbing needs.

Kristen T.

Kristen T.

All around good experience for the installation of a combi boiler. The sales process was good and they were willing to negotiate which was appreciated. I set up the install two weeks out at the time of the sale and they arrived on time today to…

Todd A.

Todd A.

Our whole experience with Donnelly's was spectacular. We really appreciated the honesty and clarity throughout the whole process. When they came out for a quote we felt like all of our questions were answered and their proposal gave us exactly what we needed at a very…

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What To Expect

Discover the Donnelly’s Difference

​Professional Services​

​We show up on time, keep things clean, and listen to what you need. We treat you and your home with the respect it deserves.

Service for All Brands

​We can work on all makes and models of HVAC and plumbing equipment.​

Trustworthy

​You can count on us to be honest and always do what we say. We communicate clearly, provide our guarantees & warranties in writing, and ensure you understand everything we're doing in your home.​

Experienced Technicians​​

We excel at solving problems with years of experience behind us. We look at today's challenges and future needs to create the best customized solutions.​

Licensed & Insured

​Our technicians are licensed, insured, and background-checked for your peace of mind.​

​Professional Services​

​We show up on time, keep things clean, and listen to what you need. We treat you and your home with the respect it deserves.

Service for All Brands

​We can work on all makes and models of HVAC and plumbing equipment.​

Trustworthy

​You can count on us to be honest and always do what we say. We communicate clearly, provide our guarantees & warranties in writing, and ensure you understand everything we're doing in your home.​

Experienced Technicians​​

We excel at solving problems with years of experience behind us. We look at today's challenges and future needs to create the best customized solutions.​

Licensed & Insured

​Our technicians are licensed, insured, and background-checked for your peace of mind.​