Lilburn's water comes from Gwinnett County, which lists hardness at about 1.34 grains per gallon on average, which is soft. Most Lilburn homes need a carbon filter, heater service or nothing at all, rather than a softener. Call the number on this page to be connected with a local plumber in Lilburn.

Signs Lilburn homeowners mention
- Chlorine taste in coffee or ice
- Grit or brown tint from the hot side of the tap
- An inherited softener that cycles but seems pointless
- Rust at first draw in an older house
- Low flow after a whole-house filter went in
Notice what's missing: heavy scale. On soft county water that's unusual, and when it shows up, a test should confirm it before any purchase.
Lilburn's water
A 2018 agreement among Gwinnett County, the Gwinnett County Water and Sewerage Authority and the City of Lilburn has Gwinnett operating the water and sewer facilities that serve the Lilburn area. Water comes from Lake Lanier through Gwinnett's Shoal Creek and Lanier filter plants, is chlorinated and fluoridated before it reaches Lilburn's mains. Gwinnett's drinking-water page lists total hardness at 1.05 to 1.87 grains per gallon, averaging 1.34. That's soft, which is why a softener seldom pays off here and why an inherited one is often worth retiring.
Lilburn began as a railroad town in 1890, and its housing has a median build year of 1988, with about a quarter built before 1980. Around Old Town, older homes may have supply piping that sheds rust; in the newer subdivisions, the water heater is the usual suspect. Gwinnett DWR maintains the meter and the pipe from the main to it; the private line to the house is the owner's.
Cost factors
- Carbon filter at one sink or on the main
- Removing, bypassing or servicing an existing softener
- Heater or pipe work if that's the real source
- Access to the main and a drain
- Replacement cartridges
- Permit, if the job alters piping
What happens when you call
You'll reach an independent plumber who serves Lilburn. Describe the symptom and any equipment already installed. The City of Lilburn issues its own building permits, and its Building Permit / Compliance Inspection Application lists plumbing among the M.E.P. trades, so the plumber can tell you whether your job needs one. Often the answer is a small one: a carbon cartridge, a heater flush, or retiring a softener that no longer earns its keep on Lilburn's soft water.
Water Softeners & Filtration questions in Lilburn
Is Gwinnett County water hard or soft?
Why does my water sometimes look rusty or cloudy?
How often do filters and softeners need maintenance?
Who owns the pipe where a whole-house unit goes?
More plumbing services in Lilburn
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