Replacing a sprinkler head takes 15 minutes and costs $5 to $15 per head

A broken or clogged sprinkler head does not require a plumber. You can unscrew the old head, clean the riser if needed, and screw on a new one — all with tools you likely have at home. The hardest part is matching the spray pattern and distance to your lawn's layout, not the physical work itself.

Most residential sprinkler heads screw onto a riser (the vertical pipe stub) by hand or with a wrench. Pop-up heads, rotor heads, and fixed spray heads all follow the same removal and installation process. The main difference is knowing what type you have so you buy the right replacement.

Key Takeaways

  • Turn off the water at the main valve or zone valve before you start, so you do not flood the area while working.
  • Unscrew the head counterclockwise by hand or with a pipe wrench; if it is stuck, soak the base with water for 10 minutes first.
  • Clean the riser threads and the inside of the riser with a cloth or old toothbrush to remove dirt and mineral buildup.
  • Screw the new head on clockwise by hand until snug, then turn the water back on and adjust the spray pattern and distance if the head has those controls.
  • Buy a replacement head that matches your existing type and spray distance, or measure the distance from the head to the farthest point it should water.

Turn off the water before you remove anything

Locate the valve that controls the zone or section where the broken head is. Most residential systems have a main shutoff valve near the water meter or where the line enters the house, and zone valves at the controller box or in the yard. Turning off the zone valve is faster and safer than the main valve, since you only stop water to that section.

If you cannot find a zone valve, turn off the main valve. Open a nearby faucet or sprinkler head to release pressure in the line, so water does not spray when you unscrew the head. Wait 30 seconds for the line to drain.

Unscrew the old head and clean the riser

Grip the head near its base and turn counterclockwise. Most heads unscrew by hand; if it does not budge after a few turns, use a pipe wrench or adjustable wrench on the base. Do not force it — if the head is stuck, soak the base with water from a hose for 10 minutes to soften mineral deposits, then try again.

Once the head is off, look inside the riser. You will see threads at the top and possibly dirt, sand, or mineral buildup inside. Wipe the inside of the riser with a dry cloth or old toothbrush to remove debris. If the riser itself is cracked or the threads are stripped, you will need to replace the riser as well — that requires digging and is a bigger job, so call a professional if you see damage.

Buy the right replacement head for your lawn

Sprinkler heads come in three main types: pop-up heads (rise above ground when water runs, hide when off), rotor heads (rotate back and forth to cover a wider area), and fixed spray heads (spray in one direction without moving). Look at the broken head or a working head nearby to see which type you have.

The second thing to match is spray distance — how far the water shoots from the head. Most residential heads spray 15, 20, 25, or 30 feet. Measure from the broken head to the farthest point it should water (usually the edge of a flower bed or the property line). Buy a head rated for that distance or slightly less; overshooting wastes water and may hit the street or neighbor's yard.

Bring a photo of the old head to the hardware store or home center, or write down the brand and model number if it is still readable. Staff can match it or suggest a compatible replacement. Replacement heads cost $5 to $15 each for standard residential types.

Screw on the new head and test the spray

Thread the new head onto the riser by hand, turning clockwise. Screw it down until it is snug — tight enough that it will not come loose, but not so tight that you strip the threads. If the head has a wrench flat (a hexagon shape on the base), you can use a wrench for the final quarter turn, but hand-tight is usually enough.

Turn the water back on at the zone valve or main valve. Let the system run for 30 seconds and watch the spray pattern. The head should pop up (if it is a pop-up) and spray evenly without leaks at the base. If water sprays from the connection point, turn off the water, unscrew the head a quarter turn, and try again.

Adjust the spray pattern and distance if your head allows it

Many pop-up and rotor heads have adjustment screws on top. A small screw or dial controls the spray distance (how far the water shoots), and another controls the arc or pattern (how wide the spray spreads). Rotor heads often have a small wrench or key taped to the head for these adjustments.

Turn the distance screw clockwise to increase distance, counterclockwise to decrease it. Adjust the arc screw to narrow or widen the spray pattern. Make small changes — a quarter turn at a time — and let the water run for a few seconds after each change so you can see the effect. Once the spray covers your lawn without hitting pavement or your neighbor's property, you are done.

What to do if the riser is damaged or the head will not tighten

If the riser is cracked, leaking, or the threads are stripped so the new head will not stay tight, the riser itself needs replacement. This requires digging down to the connection point below ground, unscrewing the old riser from the main line, and screwing on a new one. It is a 30-minute job if you are comfortable digging, but many homeowners call a sprinkler technician for this step.

If you choose to do it yourself, turn off the water, dig around the riser until you can see the connection below ground, use two wrenches (one to hold the fitting, one to turn the riser), and unscrew counterclockwise. Screw the new riser on clockwise, hand-tight plus a quarter turn with a wrench. Backfill the hole and test before you finish.

Frequently Asked Questions

Do I need to turn off the water to replace a sprinkler head?

Yes. If you unscrew the head while the system is running, water will spray out and flood the area. Turning off the zone valve takes 10 seconds and prevents a mess. If you cannot find the zone valve, turn off the main valve instead.

Can I replace a pop-up head with a rotor head?

Yes, as long as the riser threads match. Pop-up and rotor heads use the same standard threads in most residential systems. The main difference is spray distance and coverage pattern, so choose a rotor if you need to cover a larger area or a pop-up if you prefer the head to hide when off.

What if water leaks from the base of the new head?

The head is not screwed on tight enough or the threads are dirty. Turn off the water, unscrew the head, wipe the riser threads and the inside of the head with a dry cloth, and screw it back on. Tighten a quarter turn more than before, but do not force it or you will strip the threads.

How do I know what spray distance to buy?

Measure from the head to the farthest point it should water — usually the edge of a garden bed or the property line. Buy a head rated for that distance or slightly less. If you are not sure, bring a photo of the old head to the hardware store and ask staff to match the distance rating.

Can I replace a sprinkler head in winter?

Yes, but only if your system is not winterized. If you drained the lines in fall to prevent freeze damage, you will need to turn the water back on first. If the system is still active, follow the same steps as you would in summer — turn off the zone valve, unscrew the old head, and screw on the new one.