Water Line Replacement Techniques

  • Directional Bore (Trenchless)
  • Pulling a water service, using the old line as a guide (trenchless)
  • Excavation
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Clues Your Water Service is Leaking

  • Dramatic increase in water bills due to usage
  • Sitting water in your yard
  • A letter from the water authority informing you of a leak
  • Flooded basement

Potential Causes of a Leaking Water Service

  • Age (everything wears out)
  • Tree roots and soil conditions
  • Temperature changes

About Northern Virginia Water Lines

Water lines in Northern Virginia are made from a variety of materials:

  • Polyvinyl chloride (PVC)
  • Polybutylene (PB) “Big Blue”
  • Polyethylene (PE) Black
  • Galvanized iron
  • Copper

Each water line material faces different problems. These water line problems can vary from severe: thousands of gallons of water flooding your yard; to minor: low water pressure that makes your shower experience really annoying. (Low water pressure can also be due to your home’s location in relation to the water line main, which may require the installation of a pump. Conversely, high water pressure might cause problems with your appliances. This would require the installation of a pressure reducing valve.)

PB water lines (commonly used from the mid ‘70s to mid ‘90s) are not up to current building code. They deteriorate due to the chemical composition of the water. This causes the water line pipe to develop tiny cracks inside and out. These “Big Blue” water line pipes are our problem children: they’re known to burst. With “Big Blue,” it isn’t a matter of if it will leak, but when it will leak. These water line pipes typically begin to develop significant problems when they hit ten to fifteen years of age. PE water lines face similar problems. For this reason, if your water line is plastic, the water authority wants them replaced.

Copper water lines or iron water lines allow us to manually locate the leak in the water pipes, and they’re much more resilient. Galvanized iron water pipes typically start rusting after about thirty years, while copper water pipes should last about twice as long. 

Regardless of the kind of water lines you have, Dwyer Plumbing is skilled in diagnosing the issue and providing you with the most cost-effective solution. In accordance with our up-front customer assurance pricing, we answer all your water line questions and present a written work proposal for your review before any work is completed. 

Why Choose Dwyer?

The Dwyer family has been in the plumbing business since 1922. We are proud to provide fast and reliable water line repair and replacement services to customers in Northern Virginia, establishing a tradition of workforce excellence and customer trust. Dwyer is proudly independent of all other plumbing companies and their trade names, and is an accredited member of the Metropolitan Washington, D.C. Better Business Bureau with an A+ rating. Our skilled plumbers bring years of knowledge and expertise, providing valuable water line replacement and water line repair services. 

At Dwyer Plumbing, we use up-front pricing for all plumbing services. We believe in flat-job pricing, which better serves our customers and promotes quality plumbing services. In addition to offering our customers affordable water line services, Dwyer Plumbing offers limited warranties on labor and material. We want you to be completely satisfied with your plumbing work—that’s the Dwyer difference.