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Top Repiping Contractors in Dunwoody, Georgia Ranked

If you're a homeowner in Dunwoody dealing with persistent leaks, low water pressure, or rusty water, your home's aging plumbing system may be signaling the need for a full repipe. Replacing all the water supply lines in your house is a significant but often necessary project to ensure reliable water flow, prevent costly water damage, and protect your family's health. This guide will help you understand the process, materials, and local considerations for a successful whole-house repiping project, connecting you with the information needed to find qualified professionals in the Dunwoody area.

Understanding the Need for a Full Plumbing Replacement

Many of Dunwoody's charming homes, particularly those built before the 1980s, may still have original galvanized steel or aging copper pipes. Over decades, these materials corrode and accumulate mineral deposits on the inside, severely restricting water flow and degrading water quality. You might notice symptoms like a significant drop in water pressure at multiple fixtures, discolored (yellow or brown) water, or recurring pinhole leaks. A whole-house repipe is the definitive solution, replacing all the old, problematic lines with new, durable piping to restore your home's plumbing to like-new condition for decades to come.

The Repiping Process: A Step-by-Step Overview

A professional plumbing replacement is a structured project designed to minimize disruption while ensuring a long-lasting result. Understanding the steps can help you prepare your home and set realistic expectations.

1. Inspection and Planning The process begins with a thorough assessment. A licensed plumber will inspect your current system, identify all pipe routes, and determine the scope of work. This stage includes obtaining any necessary permits from the City of Dunwoody or DeKalb County, which ensures the work meets local building codes.

2. Preparation Before work starts, the main water supply to the home will be shut off. The crew will protect your floors, move furniture as needed, and strategically cut access points in drywall to reach the pipes running inside walls and ceilings1.

3. Removal and Installation The old pipes are carefully removed. Then, new water lines are run through the existing pathways (or new ones if necessary), connecting them to the main water line and branching out to every sink, toilet, shower, and appliance2. This is the core phase of the replumbing project.

4. Pressure Testing and Inspection Once the new system is installed, it is pressurized with air or water to test for any leaks. This critical quality-control step ensures the integrity of every connection before the walls are closed up3 4.

5. Finishing and Cleanup After passing the pressure test, the plumber will restore water service. The final step involves patching the drywall access points, cleaning up all work areas, and removing debris, leaving your home functional and tidy5.

Choosing the Right Pipe Material for Your Home

The choice of material for your new plumbing lines affects cost, longevity, and performance. Here are the most common options used in Dunwoody homes today:

  • PEX (Cross-Linked Polyethylene): This flexible, plastic tubing has become the most popular choice for repiping. It's corrosion-resistant, easier and faster to install (requiring fewer fittings), and is generally more budget-friendly than copper. Its flexibility allows it to expand slightly if water freezes, reducing the risk of bursting.
  • Copper: The traditional premium material, copper is known for its durability and long service life. It resists bacteria growth and can withstand high heat. However, it is more expensive both for materials and labor due to the soldering required for each joint.
  • CPVC: Similar to PEX in cost, CPVC is a rigid plastic pipe that is glued together. It is a common choice, though many professionals now prefer PEX for its flexibility and fewer connection points.

For drain, waste, and vent (DWV) lines, which are separate from your supply lines, PVC is the standard material used due to its durability and smooth interior walls.

What to Expect: Project Timeline and Investment

A whole-house repipe is a multi-day undertaking. For a standard single-family home in Dunwoody, you can typically expect the project to take 3 to 7 days6. Larger homes, those with complex layouts, or projects requiring extensive wall repair may take longer.

The total cost for a plumbing overhaul in the Atlanta area, including Dunwoody, typically ranges from roughly $4,500 for a smaller home to $15,000 or more for larger or more complex properties7 8 9. The final price depends on several key factors:

  • Home Size and Number of Fixtures: More bathrooms and kitchens mean more pipe runs.
  • Pipe Material: Copper is a more significant investment than PEX.
  • Labor Complexity: Multi-story homes or those with difficult-to-access plumbing chases can increase labor time.
  • Extent of Wall Repair: The cost to patch and repaint drywall after the pipes are installed can vary.

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Finding a Qualified Repiping Professional in Dunwoody

Selecting the right contractor is crucial for a successful pipe replacement. Look for licensed, insured plumbers with specific experience in whole-house repiping projects. It's wise to:

  • Get Multiple Detailed Quotes: Obtain at least three written estimates that break down costs for materials, labor, and permits.
  • Check Local Reviews and References: Platforms like Yelp can provide insights into local customer experiences with plumbing services in Dunwoody10. Ask the plumber for references from recent repiping jobs.
  • Ask the Right Questions: Inquire about the brand of materials they use (e.g., Uponor PEX, Cerro copper), their estimated timeline, warranty details on both parts and labor, and how they handle the drywall repair process 11.
  • Verify Credentials: Ensure they are licensed to work in Georgia and pull the required permits, which protects you and ensures the work is inspected.

Local companies like Benjamin Franklin Plumbing or TE Certified, which service the Atlanta area, are examples of established providers often sought for such major projects12 13.

Preparing Your Home for the Project

A little preparation can make the process smoother for both you and the plumbing crew. Consider the following:

  • Clear Access: Move furniture, rugs, and personal items away from walls where pipes are located, especially in bathrooms, kitchens, and utility rooms.
  • Plan for Water Outage: You will be without running water for the majority of the project. Plan accordingly by filling jugs with water for drinking and cooking.
  • Discuss Living Arrangements: The noise, dust, and lack of water can be disruptive. Some families choose to stay elsewhere, especially during the core installation days.
  • Set Expectations for Repair: Understand the plumber's scope regarding drywall patching. Some include basic patching, while others leave it ready for a professional drywall finisher and painter, which is a separate cost.

Frequently asked questions

Sources

Footnotes

  1. What Is Involved in Repiping a House? - Apollo HVAC & Plumbing - https://gotoapollo.com/2024/03/06/what-is-involved-in-repiping-a-house/

  2. Steps in A Whole House Repipe - Ideal Services - https://www.idealservices.com/blog/steps-in-a-whole-house-repipe/

  3. Whole-House Repiping: Step-by-Step Guide - https://www.veteranplumbing.us/whole-house-repiping-step-by-step-guide/

  4. Repiping a House: Essential Guide | American Mains & Drains - https://www.americanmainsanddrains.com/post/repiping-a-house-guide

  5. What Is Involved With Repiping A House? - HELP Plumbing - https://333help.com/blog/what-is-involved-with-repiping-a-house/

  6. Why Older Homes in Georgia Need Plumbing Re-Piping - https://www.holtkamphvac.com/blog/plumbing-repiping-for-old-georgia-homes/

  7. How Much to Repipe a House: A Comprehensive Cost Guide - https://www.benjaminfranklinplumbing.com/league-city/blog/2024/december/how-much-to-repipe-a-house-a-comprehensive-cost-guide/

  8. Price to Repipe a House in Atlanta: What to Expect - https://atlanta.repipe.com/financing/cost-to-replace-plumbing-in-atlanta-what-to-expect

  9. How Much Does It Cost to Repipe a House? [2026 Data] | Angi - https://www.angi.com/articles/cost-to-repipe-a-house.htm

  10. THE BEST 10 Plumbing in DUNWOODY, GA - Yelp - https://m.yelp.com/search?cflt=plumbing&find_loc=Dunwoody%2C+GA

  11. How Much to Repipe a House: Understanding Costs and Factors - https://www.benjaminfranklinplumbing.com/league-city/blog/2025/march/how-much-to-repipe-a-house-understanding-costs-and-factors/

  12. Comprehensive Guide to Whole House Repiping: Discover When, Why, and How - Absolute Airflow - https://www.absoluteairflow.com/comprehensive-guide-to-whole-house-repiping/

  13. Whole Home Repiping | Atlanta, GA - TE Certified Electricians - https://www.tecertifiedelectricians.com/atlanta-area-plumber-services/whole-home-repiping/