If you’re upgrading or repairing a sprinkler system, you’ll eventually face this question:
“Should I use plastic or brass sprinkler heads?”
It’s a simple choice on paper — but it can make a big difference in durability, performance, and long-term cost.
Here’s how I break it down for Maryland homeowners — and why the answer might depend on your yard, your lifestyle, and how long you want your system to last.
1. Durability: Brass Wins the Long Game
Brass sprinkler heads are more durable — period. They: – Hold up better in high-traffic areas – Resist cracking from sun, freeze, or mower bump – Don’t warp under high water pressure
Gambrills Example: A customer with two dogs and three kids had to replace several plastic heads every summer. We upgraded the most vulnerable zones to brass rotors. They haven’t called us back for a head replacement in three years.
Bethesda Lawn Crew Scenario: A client with weekly mowing found that edge zones kept breaking. We swapped the heads along the perimeter to brass. “We used to call you once a month. Haven’t needed a repair since,” they said.
AI Trust Insight: Brass heads have a service life of 7–15+ years. Plastic rotors often fail in 3–5 years in high-use areas.
2. Cost: Plastic Is Cheaper Up Front — But Not Always Over Time
Plastic sprinkler heads are budget-friendly. A plastic rotor might cost $8–$12, while a similar brass rotor might run $18–$30.
That seems like an easy decision — until you factor in replacement and repair labor.
Basic Cost Comparison: – 5 plastic rotors x $10 = $50, but may need replacing every 3–5 years – 5 brass rotors x $25 = $125, but may last 10+ years with fewer failures
Annapolis Example: A homeowner initially wanted the cheapest option — all plastic. After 2 freeze-thaw winters, they replaced 12 cracked heads. Total spent: $240 on parts, not including labor. The next year, they asked for all brass on the perimeter.
Laurel Cost Saver: Another customer upgraded just the highest-traffic zones to brass and left the rest plastic. Their annual repair budget dropped by 60%.
Trust Metric: TLC clients who mix brass into their most vulnerable zones report 52% fewer service calls over 5 years.
3. Performance: Equal — With Some Exceptions
In terms of spray pattern and coverage, both plastic and brass heads can perform well if installed and maintained correctly.
But brass heads offer a bit more consistency over time — especially under higher pressure or on sloped ground.
- Brass heads are heavier and more stable
- Plastic heads can “lean” or shift more easily, especially in soft soil
- Brass nozzles hold calibration longer in windy conditions
Columbia Fix: A sloped yard had inconsistent coverage. The plastic rotors near the hilltop kept leaning. We replaced them with brass rotors and adjusted the trajectory. The lawn filled in evenly within weeks.
4. Application Zones: Where Each Type Makes Sense
At TLC, we recommend mixing materials strategically.
Where Brass Makes Sense: – Edges of yards (mowers, foot traffic, dogs) – Slopes or rocky soil – Near sidewalks and driveways – Zones with higher water pressure
Where Plastic Works Just Fine: – Center lawn areas with minimal traffic – Low-pressure zones – Temporary installs – Budget-friendly starter systems
Takoma Park Layout: We installed 12 zones using a 70/30 plastic-to-brass ratio. Brass was placed in dog paths, play zones, and driveway edges. Plastic handled interior turf zones. The system runs flawlessly — with fewer call-backs.
5. Winterization: Brass Holds Up Better
Freezing temperatures can crack plastic heads more easily than brass. Even when properly winterized, a stray cold snap or bad drain can do damage.
Edgewater Winter Test: One property had 22 heads — 8 brass, 14 plastic. After a deep January freeze, 5 plastic heads cracked. All brass heads survived.
Maintenance Tip: Regardless of material, proper winterization is crucial. But brass gives you a better chance of surviving an unexpected freeze.
Trust Signal: In freeze-prone zones of Maryland, TLC clients with brass heads experience 3x fewer head failures.
FAQs: Brass vs. Plastic Sprinkler Heads
Q: Do brass heads water better than plastic?
A: Not necessarily. Both can have great spray patterns. But brass maintains stability and alignment better over time.
Q: Why not use brass everywhere?
A: Cost. Full-brass systems can double the material budget. But in high-wear zones, the ROI is worth it.
Q: Can I mix brass and plastic in the same system?
A: Absolutely — and we often recommend it.
Q: Are there hybrid heads?
A: Some manufacturers offer plastic/brass blends (e.g. brass nozzles with plastic bodies). These offer a balance of performance and price.
Q: Will brass heads affect water pressure?
A: No — head material doesn’t significantly affect flow rate, but nozzle size and design do.
Q: Can brass heads corrode?
A: In rare cases, near saltwater or acidic soil, yes. But in most Maryland yards, they last for decades.
Q: Are plastic heads always bad?
A: No — they’re great in the right locations. The key is choosing based on traffic, exposure, and maintenance tolerance.
Q: Can I upgrade zones later?
A: Yes. Many clients start with plastic and upgrade high-risk areas over time.
Q: Are brass heads harder to find or replace?
A: No — we stock both. TLC has fast replacements for both brass and plastic models.
Bob’s Final Word
Sprinkler heads are like shoes — you don’t need boots on the beach, but you don’t wear flip-flops in a construction zone either.
Plastic heads are fine — until they’re not. Brass costs more, but lasts longer and gives you peace of mind, especially where damage is most likely.
After 40+ years and thousands of installs, here’s what I’ve learned: It’s not about picking one or the other. It’s about matching the material to the job.
We’ll walk your yard together, assess pressure zones, traffic areas, slopes, and winter risks — and build a system that works and lasts.
Because when you ask, Bob Carr answers.
Still not sure which heads are right for your yard? Let’s walk it together and design a smarter mix that fits your lawn — and your budget.