Water heater repair in Greensboro, NC

Reedy Fork reservoirs and Greensboro's two plants

The City of Greensboro Water Resources Department draws most of its supply from a chain of lakes on Reedy Fork and its tributaries in the northern part of Guilford County. Lake Higgins and Lake Brandt sit upstream, and Lake Townsend, the largest of the three, holds the bulk of the storage. Water from the lakes goes to the Mitchell Water Treatment Plant, the older of the two, and to the Townsend plant near the big lake. The city also takes a share of treated water from Randleman Lake through the Piedmont Triad Regional Water Authority.

Because those watersheds run over Piedmont clay and granite rather than limestone, the water that reaches homes in Sedgefield, Westerwood or Glenwood carries little calcium. A Greensboro tank drained after eight years usually gives up some brown silt and a few flakes, not the gravel bed you would see in a desert city. Tankless units on Greensboro water rarely need descaling more than once every two years or so.

That softness has a cost. With almost nothing in the water to slow it down, the magnesium or aluminum rod inside the tank sacrifices itself quickly, and once it is spent the steel lining starts to rust. When a Greensboro homeowner sees tea-colored hot water or smells rotten eggs from the hot tap only, the anode is the first suspect.

Crawlspaces, mill villages and northwest subdivisions

Older Greensboro was built up on piers and crawlspaces. Fisher Park, Irving Park, College Hill and Sunset Hills have early twentieth century homes where the heater was tucked under the house, into a back hall closet, or onto an enclosed porch long after the original plumbing went in. Former mill neighborhoods around the old Cone mills, such as Revolution, White Oak and Proximity, have small frame houses with the same raised foundations and very tight access.

Postwar ranches in Lindley Park, Kirkwood and Starmount Forest usually tuck the tank into a laundry closet beside the kitchen or a storeroom at the back of the carport. Farther out, Lake Jeanette, Adams Farm, Hamilton Lakes and the subdivisions toward Summerfield and Oak Ridge are mostly two-story houses from the 1980s on, with the heater in the garage and sometimes a second unit in the attic over a bonus room.

A crawlspace install is the one that gives plumbers the most trouble here. Many entry hatches were sized for a 30-gallon tank from decades ago, so a modern 50-gallon unit with thicker foam may need a hatch widened or a different heater style. Red clay underfoot holds moisture, and a vented crawlspace in July can sit near dew point for weeks.

Damp summers, ice storms and the 2018 tornado

Greensboro summers are hot and sticky, and that humidity finds its way under houses without a vapor barrier. Dielectric unions, gas flex lines and the bottom seam of the tank all corrode faster in those conditions, and an electric heater's lower element cover can rust through. Encapsulating the crawlspace or moving the heater up into a closet both stretch its service life.

Winter is usually mild, but freezing rain and ice storms knock out power across the Triad every few years. Pipes running to a crawlspace heater can freeze when outages last overnight, and a frozen cold line will look like a heater failure until it thaws.

On April 15, 2018, an EF2 tornado tore through east Greensboro, damaging homes and schools from the Phillips Avenue and Cone Boulevard corridor through neighborhoods near Summit Avenue. Many houses had roofs and walls torn open, gas service interrupted, and debris pushed into utility rooms and crawlspaces. Heaters that went through that kind of event, or any storm that floods a crawlspace or bends a vent pipe, deserve an inspection before they are fired again.

The problems plumbers see most in Greensboro

• Rotten-egg hot water in homes on soft city water after the anode has dissolved.
• Rusted shutoffs and unions on heaters sitting in damp crawlspaces in Fisher Park and the mill villages.
• Tanks too wide for the hatch when an old 30-gallon needs replacing under a College Hill bungalow.
• Clogged attic pan drains over finished bonus rooms in Lake Jeanette and Adams Farm.
• Pilot outages and thermocouple failures on 15-year-old gas tanks in Starmount and Lindley Park ranches.
• Storm-damaged flues and gas lines after high winds or falling limbs in east Greensboro.

Typical water heater prices in Greensboro

Greensboro labor runs a bit lower than in Charlotte or the Triangle. The gap shrinks on crawlspace jobs, where hauling a tank out through a two-foot opening and setting a new one on blocks in the clay takes most of a day.

Licenses and Greensboro permits

North Carolina plumbing contractors are licensed by a state examining board covering plumbing, heating and fire sprinklers, and its online search lets a Greensboro homeowner look up any company by name. Inside city limits, a water heater replacement calls for a permit through the City of Greensboro's inspections staff, who then look over the T&P drain line, flue, gas piping and pan before signing off. Homes in unincorporated parts of the county, such as McLeansville or Pleasant Garden, go through Guilford County Inspections instead.

Before you sign a quote, confirm the contractor's state license class covers the work and that the city or county inspection is part of the price. An unpermitted swap in a crawlspace can come up later during a home sale inspection.

Gas, electric and heat pump choices

Piedmont Natural Gas serves much of Greensboro, and gas tanks are common in neighborhoods with service lines. Duke Energy Carolinas supplies electricity, and many homes in newer subdivisions and in all-electric ranches run 50-gallon electric heaters. Duke has offered water heating rebates at times, and a quick look at its current Carolinas offers before buying can pay off.

Heat pump water heaters work well in a Greensboro garage or a large conditioned utility room, where summer heat gives them plenty to pull from. They are a poor fit for a cramped crawlspace, since they need air volume, a condensate drain and room for service access.

Repair or replace in Greensboro

Since soft water spares the tank bottom, a Greensboro heater that is six or seven years old with a healthy liner is usually worth fixing, and a new anode at that point can buy several more years. Once you see weeping from the tank seam or rust streaks down the jacket, the liner has failed and replacement is the only real answer.

For crawlspace heaters past about ten years, planning a replacement on your schedule beats waiting for a leak that soaks the subfloor and the insulation batts. Many owners take the opportunity to relocate the heater to a closet or garage, which makes the next replacement far easier.

Around Greensboro

Nearby towns handle water and permits their own way. High Point runs its own utility drawing on its own lakes and has its own inspections office. Jamestown, Summerfield and Oak Ridge rely on Guilford County for inspections, and many homes there are on private wells with harder water than the city's. Burlington and Gibsonville to the east, and Kernersville toward Winston-Salem, each have separate water and permitting arrangements, so ask which office a plumber will file with.

Water heater questions from Greensboro