Sprinkler Repair for Gainesville & the North Metro

"Sprinkler repair" and "irrigation repair" get used interchangeably, and there is real overlap. The practical distinction is that sprinkler repair tends to start with what is visible at the surface — the heads, the nozzles and the resulting spray pattern — while irrigation repair covers the buried and electrical side too. Most calls end up crossing that line, because a head that will not pop up might be a broken head or might be a pressure problem three hundred feet upstream.

Two head types cover most residential lawns. Spray heads (also called fixed or pop-up heads) throw a fan-shaped sheet of water over a short distance and are used in beds and small turf areas. Rotors turn back and forth, throwing a single stream much further, and are used on open lawn. They apply water at very different rates, which is why mixing them on one zone is a coverage problem no amount of run time will solve.

Symptoms homeowners notice

• Water shooting straight up in a geyser instead of spraying
• A head that stays down, or pops up and will not retract
• Spray hitting the driveway, the sidewalk, the fence or the house
• A fine mist that drifts away instead of a defined stream
• Rotors that no longer rotate, or only sweep part of their arc
• Dry, brown patches in a lawn that otherwise looks healthy
• Heads sitting below grade, buried in mulch, or blocked by grown-in shrubs
• Water pooling around the base of a head
• One zone noticeably weaker than the rest

The most likely causes

• Physical damage. Mowers, string trimmers, vehicles, aerators and foot traffic shear off head tops and crack riser threads. This is the single most common sprinkler failure.
• Clogged nozzle or screen. Grit and pipe scale block the nozzle orifice or the filter screen under it, producing weak, lopsided or non-existent spray.
• Worn internal seal. The wiper seal that lets a pop-up rise and retract cleanly wears out. Water then escapes around the stem instead of through the nozzle, so the head puddles and the rest of the zone loses pressure.
• Sunken or tilted head. Soil settles, mulch builds up and the head ends up below grade or aimed at the sky. Spray then hits the turf canopy instead of clearing it.
• Wrong nozzle or mismatched heads. Replacing a head with whatever was on the truck changes the application rate. Rotors and spray heads on one zone guarantee that part of the lawn is over-watered and part is dry.
• Pressure too low or too high. Low pressure leaves spray short of target. High pressure atomises water into mist that evaporates and drifts. Both look like broken heads and neither is.
• Too many heads on a zone. Heads added over the years without adding capacity divide the available flow until none of them perform properly.
• Zone-level fault. If no head on a zone works, the problem is usually the valve, the wiring or the controller rather than the heads themselves.

How a technician diagnoses it

• We run the zone and watch it, which sounds obvious and is the step most often skipped. A zone where every head is weak is a supply problem. A zone where one head is weak and the rest are fine is that head. A zone where nothing happens at all is electrical or valve-side, and we move to zone diagnostics.
• For individual heads we pull the top and check the screen, inspect the nozzle for wear and blockage, and check the seal by watching whether water escapes around the stem when the head is up. For coverage we look at where the water is actually landing and whether adjacent heads overlap. Properly designed sprinkler coverage is head-to-head: each head’s spray should reach the next head, because the edge of any spray pattern applies far less water than its middle.
• Where dry patches persist after the mechanical faults are fixed, we check uniformity with catch cups — straight-sided containers set across the zone to measure how much water each area actually receives in a fixed run time. That turns a guess about coverage into a number, and it often shows that the real problem is nozzle sizing or soil intake rather than anything broken.

What the repair involves

1. Cycle and catalogue. Every zone is run and every faulty or misaimed head noted, so one visit fixes the whole lawn rather than the one head you noticed.
2. Replace with matched parts. Failed heads are replaced with the same type and nozzle rating as their neighbours, on the same zone, so the application rate stays uniform.
3. Reset grade. Sunken heads are raised back to finish grade so spray clears the turf, and heads pushed up above grade are lowered out of mower reach.
4. Flush the line. The lateral is flushed before the new nozzle goes on, so grit released during the repair does not immediately clog the new part.
5. Set arc and radius. Each head is adjusted to water turf and not pavement, and radius is trimmed so the pattern reaches the neighbouring head without overshooting the bed.
6. Re-run and verify. The zone runs again start to finish while we watch, and the controller schedule is adjusted for the season.

What affects the cost

Head-level sprinkler repair is one of the cheaper irrigation repairs because it is surface work with inexpensive parts. Cost tracks part count and part type.

• How many heads need replacing — the second and third head on the same visit cost far less than the first
• Head type: a small spray body is inexpensive, a large gear-driven rotor considerably more
• Whether the riser or threads broke below grade, which turns a swap into a small excavation
• Nozzle count, since a coverage correction may mean re-nozzling a whole zone
• Whether the real fault is pressure or zone-side, which changes the job entirely
• Turf type and whether sod has to be cut back from a buried head

For published rates and general North Georgia market ranges by repair type, see the Georgia irrigation repair cost guide.

Does this repair require digging?

Most sprinkler head repairs need no digging at all. A pop-up head unthreads from the fitting below it, and the replacement threads straight back on with the cap left at grade.

Light digging — a hand trowel, a hole the size of a dinner plate — is needed when the threaded riser or the fitting underneath has cracked, when a head has to be raised or lowered to correct grade, or when a head is being relocated. Relocating a head to fix a genuine coverage gap means running a short length of new lateral pipe, which is a slightly larger trench but still shallow and narrow.

How long does it take?

Replacing a handful of heads on an accessible lawn is typically well inside the first hour on site. Re-nozzling and re-aiming a full zone takes longer because each head is adjusted and the zone is re-run to check the result. A whole-system coverage correction on a large lot is usually a half-day type of job, and we will say so before starting rather than after.

Should the water be shut off?

A broken head only loses water while its zone is running, so switching the controller to OFF is normally enough to stop the loss until we arrive. If a head has sheared off completely and its zone runs overnight, turning the controller off matters — an open riser with no nozzle discharges far more water than the head ever did.

If water keeps running from a head with the controller off, that is not a head problem. It means a valve is not sealing, and the irrigation isolation valve should be closed. See why a system leaks when it is switched off.

Will leaving it alone raise the water bill?

A sheared head can easily double the water a zone uses, because water leaves through an open riser under full flow instead of through a metered nozzle. It also robs pressure from every other head on that zone, so the rest of the lawn gets under-watered at the same time — you pay more and the grass looks worse.

Misaimed heads waste less water but waste all of it: water landing on a driveway or the street evaporates or runs to the storm drain. Correcting arcs is one of the cheapest efficiency gains available on an existing system.

North Georgia considerations

North Georgia lawns are mostly warm-season turf — bermuda and zoysia on full-sun lots, with fescue common on shadier properties, especially through the older tree-covered neighbourhoods of Hall County and inside the Gwinnett corridor. Fescue needs more consistent summer moisture than bermuda does, so a lawn with both will always show stress somewhere unless the zones are split sensibly.

Heavy Piedmont clay is the other factor. Because clay accepts water slowly, a rotor zone left to run its full requirement in one block will run off long before the water reaches root depth. On sloped lots — and the terrain around Lake Lanier and the Chattahoochee corridor has plenty — that runoff is visible as a stripe of lush grass at the bottom of the hill and thin turf at the top. Shorter, repeated cycles fix it without touching a single head.

Frequently asked questions

Related services

Where we do this work

Irrigation Medics covers Hall County and the Lake Lanier communities, the Gwinnett corridor through Duluth, Suwanee and Buford, and North Fulton and Forsyth. Rates are the same everywhere — see the full service area.