Published: February 22, 2026 | Reading time: 9 minutes
Repiping is a large job, and nobody should sell you one for a single leak. But there is a point where repairing individual failures costs more than replacing the system, and a lot of Lawrenceville homes built between the late 1970s and mid 1990s are at or near it. Here is how to tell.
The Clearest Signs
One of these on its own may mean nothing. Several together usually means the pipe itself is at end of life rather than unlucky.
- Repeat leaks. Two or more unexplained leaks in a few years is the strongest single indicator.
- Rusty or discoloured water, especially first thing in the morning after water has sat in the pipes overnight.
- Gradually declining water pressure across the whole house rather than at one fixture.
- Visible corrosion, flaking, dimpling, or green staining on exposed pipe in a basement or crawl space.
- A metallic taste in the water.
- Persistently noisy pipes, banging or rattling that has worsened over time.
- Grey plastic pipe, which is polybutylene and a known failure risk regardless of current symptoms.
The Two Materials That Fail in Gwinnett County
Almost all the repiping we do around Lawrenceville comes down to one of two materials.
Polybutylene (1978 to 1995)
Grey plastic supply pipe, usually with plastic or copper crimp fittings. It was used extensively in Gwinnett County during a period of rapid subdivision growth, so Snellville and similar era neighbourhoods have a lot of it.
Polybutylene fails at the fittings, without warning, and typically without a freeze or any other trigger. There is no reliable way to inspect it and predict failure. If your home has it and you have already had one failure, more are coming.
Galvanized Steel (pre 1970s)
Zinc coated steel pipe that corrodes from the inside out. Older parts of Lilburn and Duluth still have it in service.
Galvanized narrows internally as corrosion builds, which is why pressure fades gradually over years and the water runs rusty in the morning. By the time pressure is noticeably poor, the internal diameter can be a fraction of the original. No fixture work restores that. Only replacing the pipe does.
Copper is a third case. Good quality copper lasts decades, but thin walled copper in aggressive water develops pinhole leaks, and once you have found several the rest of the system is usually not far behind.
PEX or Copper for a Repipe
For most Lawrenceville homes we recommend PEX. It handles the occasional hard freeze here far better than rigid copper, because it can expand slightly rather than splitting. It installs with fewer joints inside walls, which means fewer potential failure points, and it costs less.
Copper still makes sense for specific exposed runs and where local code or a particular application calls for it. We will tell you which sections of your house warrant it rather than quoting one material for everything.
What Repiping Costs
Cost depends on house size, number of bathrooms, slab or crawl space construction, and how much wall access is needed.
Typical Repiping Costs in Lawrenceville, GA
- Small home, 1 to 2 bathrooms (PEX): $4,000 to $8,000
- Average home, 2 to 3 bathrooms (PEX): $6,000 to $12,000
- Larger home, 3+ bathrooms (PEX): $10,000 to $18,000
- Copper repipe: roughly 40 to 70 percent above the PEX equivalent
- Partial repipe of one problem section: $1,500 to $4,000
- Drywall repair and finishing: often quoted separately
Ask any quote whether drywall repair is included, because that is where quotes most often differ and where an apparently cheaper price turns out not to be.
When Repair Still Makes More Sense
We turn down repiping work regularly, and it is worth saying when.
- A single leak with no history of others, in otherwise sound copper
- Damage from an identifiable one off cause, such as a nail through a pipe during a renovation
- A leak confined to one fixture branch that can be replaced in isolation
- A home already repiped where the failure is at a specific fitting
In those cases a targeted repair or leak detection and spot fix is the correct answer. Repiping a house because one nail hit one pipe is not.
Permits, Inspection and Resale
Whole home repiping requires a permit in Gwinnett County, and the signed inspection is genuinely valuable when you sell. Polybutylene in particular is something buyers and their inspectors look for, and documented replacement removes it as a negotiating point.
We pull the permit, schedule the inspection, and hand you the documentation as part of the job. An unpermitted repipe saves a little upfront and costs considerably more at closing.
Repiping Across Gwinnett County
We repipe homes throughout the area, with the highest volumes in Snellville and Lilburn because of their housing age profile. We also cover Suwanee, Duluth, Dacula, Grayson, and Buford.
Frequently Asked Questions
What are the signs a house needs repiping?
Repeat unexplained leaks, rusty or discoloured water especially in the morning, gradually declining pressure across the whole house, visible corrosion on exposed pipe, a metallic taste, and grey polybutylene pipe. One sign alone may mean little; several together usually means the system is at end of life.
How much does it cost to repipe a house in Lawrenceville GA?
A small one to two bathroom home in PEX typically runs $4,000 to $8,000, an average two to three bathroom home $6,000 to $12,000, and a larger home $10,000 to $18,000. Copper runs roughly 40 to 70 percent higher. Always confirm whether drywall repair is included in a quote.
What is polybutylene pipe and why is it a problem?
Grey plastic supply pipe used from roughly 1978 to 1995, common in Gwinnett County homes from that era. It fails at the fittings without warning and without any freeze or other trigger, and there is no reliable way to inspect it and predict failure. Once one failure occurs, more usually follow.
Is PEX or copper better for repiping in Georgia?
PEX for most homes here. It tolerates the occasional hard freeze better than rigid copper because it can expand slightly rather than splitting, it uses fewer joints inside walls, and it costs less. Copper still suits specific exposed runs, and we identify which sections warrant it.
How long does a whole house repipe take?
Typically two to five days depending on house size, number of bathrooms, and access. Water is generally restored each evening. Drywall repair and finishing follow afterwards and may be scheduled separately depending on how the work is quoted.
Do I need a permit to repipe a house in Gwinnett County?
Yes, whole home repiping requires a permit, and the signed inspection matters at resale. We pull the permit and handle the inspection as part of the job. Documented replacement of polybutylene in particular removes a common negotiating point for buyers.