Is Your Sprinkler Head Broken? Here’s How to Tell
A broken sprinkler head is one of the most common irrigation issues we see across South Jersey — from Toms River to Barnegat and everywhere in between. The good news? It’s often a straightforward fix. The bad news? Ignoring it can lead to dry patches in your lawn, wasted water, and higher utility bills.
In this guide, we’ll walk you through how to diagnose a broken sprinkler head, the steps to replace it yourself, and when it makes more sense to call a licensed irrigation professional like Coastal Mist Irrigation.
Signs You Have a Broken Sprinkler Head
- Water pooling or gushing from one spot when the zone runs
- Dry or brown patch in the lawn that a specific head used to cover
- Sprinkler head won’t pop up fully or gets stuck in the up position
- Uneven spray pattern — water going in the wrong direction or missing an arc
- Sunken or tilted head below the surface of the lawn
Any one of these signs warrants a closer look. Turn off your system and inspect the affected zone before running it again.
What Causes Sprinkler Heads to Break?
In New Jersey, sprinkler heads typically break for a few reasons:
- Lawn mower damage — the #1 cause. Mowing too low or catching a head that’s slightly raised will shear or crack it.
- Foot traffic and vehicle damage — heads near driveways or high-traffic areas get driven over or stepped on repeatedly.
- Freeze damage — improper winterization or an early freeze can crack the casing or internal components.
- Age and UV exposure — plastic components degrade over time, especially in full sun.
- Root intrusion or settling — soil movement can cause heads to tilt or sink below grade.
Tools You’ll Need for a DIY Sprinkler Head Replacement
- Flat-head screwdriver or sprinkler head removal tool
- Small trowel or hand spade
- Replacement sprinkler head (match brand, type, and radius)
- Teflon tape (plumber’s tape)
- Bucket or old towels
Pro tip: Before purchasing a replacement, photograph the existing head or write down the model number stamped on the side. Using the wrong replacement head can throw off your entire zone’s coverage.
Step-by-Step: How to Replace a Broken Sprinkler Head in NJ
Step 1 — Turn Off the Irrigation System
Always shut off your irrigation controller and the water supply to the zone before digging. If you’re unsure which zone is affected, turn the system completely off at the backflow preventer.
Step 2 — Expose the Sprinkler Head
Use a small trowel to carefully dig around the head, clearing about 4–6 inches of soil in all directions. Be careful not to cut lateral lines, which are typically 4–8 inches deep in South Jersey soils.
Step 3 — Unscrew the Old Head
Most sprinkler heads thread directly onto a swing joint or riser. Turn counterclockwise to remove. Have a bucket handy — residual water will drain from the pipe. If the head is stuck, use a rubber strap wrench rather than pliers, which can crack the pipe fitting.
Step 4 — Thread On the New Head
Wrap the threads of the riser or swing joint with two to three layers of Teflon tape. Hand-tighten the new head clockwise, then give it a quarter-turn snug with your hands. Do not over-tighten — the plastic threads can crack.
Step 5 — Set the Head Height
The top of the sprinkler head should sit flush with the surrounding soil — no more than ¼ inch above grade. A head that sits too high will be hit by the mower again. Too low and it won’t clear the grass to pop up properly.
Step 6 — Test the Zone
Restore water, run the affected zone manually from your controller, and watch for leaks at the base of the new head. Check the spray pattern and arc, adjusting the deflector screw on top if needed.
Step 7 — Backfill and Tamp
Once you’re satisfied with the head’s performance and position, backfill the soil, tamp lightly, and add grass seed if needed.
When to Call a Professional Instead
DIY sprinkler head replacement works well for a single broken head on a straightforward swing joint. Call a licensed irrigation contractor if you encounter:
- Multiple heads broken in the same zone — could indicate a pressure problem, not just physical damage
- Water still running after shutoff — suggests a failed valve, not just a broken head
- The pipe itself is cracked or broken below the head
- You can’t identify the head brand or model — mismatched heads cause uneven coverage across the whole zone
- Persistent low water pressure throughout multiple zones — a sign of a deeper system issue
- The zone won’t activate at all — valve, wire, or controller issue beyond a simple head replacement
How Much Does Sprinkler Head Repair Cost in South Jersey?
If you’re calling a pro, here’s what to expect:
- Single head replacement: $75–$125 (includes parts and labor)
- Multiple heads: $60–$90 per head when replacing several at once
- Head replacement + zone pressure check: $100–$175
- Broken lateral pipe repair: $150–$350 depending on depth and access
Most sprinkler repair visits in South Jersey include a full system check — so if there are other small issues, a good contractor will flag them during the same visit.
Schedule Sprinkler Repair in South Jersey
Coastal Mist Irrigation serves homeowners and businesses across Ocean County, Burlington County, and Atlantic County. If you’ve got a broken sprinkler head — or an irrigation problem you can’t quite diagnose — give us a call or request a free estimate online. We’ll get it sorted quickly so your lawn stays green all season.
Licensed & Insured | NJ LIC#719827 | Serving Toms River, Barnegat, Brick, Manahawkin, and all of South Jersey