Repair service · Valves
Sprinkler valve repair & replacement
The valve is the heart of every zone — and the part that fails most on North Texas systems, where decades of sediment, clay movement, and sun-brittled plastic do their slow work. We diagnose which of your valves actually failed, quote a flat price before work begins, and fix it right under a Texas irrigator's license.
Stuck-open zones treated as priority calls · You approve the flat price before any work begins
Texas Licensed Irrigator — LI0026061Required by Texas law for sprinkler repair. Ask any company for theirs.
Request sprinkler service
Describe the problem — we'll call back with an arrival window, usually same day.
Valve services
Every valve failure, one licensed fix
A valve has exactly two jobs — open on command, close on command — and a handful of ways to fail at each. We fix all of them.
Stuck-open valves & runaway zones
Debris-fouled or worn diaphragms holding a zone on. Want to try it yourself first? Our DIY valve repair guide walks the rebuild.
Dead zones — valve or wiring?
A zone that won’t fire is usually electrical, not mechanical. We test before we replace; the ohm-map method is in our wiring guide.
Weeping & seeping valves
Heads that dribble for hours after shutoff mean a valve that never fully seats — or a low-point drain problem we separate it from.
Full valve replacement
Cracked bodies, stripped bonnets, discontinued models with no rebuild kits. Cut out, replaced, unioned for the next repair.
Manifold rebuilds
When the valves fail in batches — and on same-age systems they do — one rebuild beats four service calls. Honest math, in writing.
Lost valve location & box raising
Valves buried under decades of landscaping, found electronically and raised to grade — no exploratory digging.
We rebuild and replace every major valve line — Rain Bird DV and ASVF, Hunter PGV and SRV, Irritrol and Hardie 205/2400, Toro, Orbit — and we retrofit modern valves onto the brass-era and discontinued systems whose parts vanished decades ago.
Diagnosis guide
Which valve problem do you have?
Valve calls arrive as one of these six. Here's what each usually means before we've opened a single box.
A zone runs until you kill the water
The signature stuck valve: debris under the diaphragm or rubber worn through. Shut the isolation valve at your backflow assembly to stop it — then the fix is a rebuild or replacement, never the controller.
A zone is completely dead
Even odds between a failed solenoid and broken field wiring — the valve body itself is usually innocent. We meter-test the electrical path first so you don’t pay for a valve you didn’t need.
Heads weep long after shutoff
A valve not fully seating lets water crawl to the lowest heads for hours. On slopes we first rule out normal low-point drainage — a check-valve fix, not a valve fix.
The valve box is full of water
Either a leaking valve assembly, a weeping bonnet, or a supply-side leak migrating into the box. We pump it, dry it, and watch where the water returns from.
Banging pipes when zones change
Water hammer — valves closing too fast for the system’s pressure. Persistent hammer cracks fittings; we fix it at the valve and the pressure, not with pipe straps.
Two zones run at once
A controller fault or a valve stuck partially open piggybacking on shared pressure drops. Quick to diagnose, cheap to fix, expensive to ignore on a water bill.
Flat-rate pricing
Flat-rate valve repair pricing
Every repair is a flat rate quoted before work begins — never hourly, never a running meter while someone digs. The service call covers a full zone-by-zone diagnosis and applies to your repair, so diagnosis is effectively free when we do the work.
| Repair | Flat rate | What it covers |
|---|---|---|
| Service call & diagnosis | $[XX] | Every zone run and tested — valves, wiring, pressure. Applied to your repair. |
| Diaphragm / solenoid rebuild | from $[XX] | Brand-matched parts, valve tested open and closed twice before we leave. |
| Full valve replacement | $[XXX]–$[XXX] | Cut out and replaced, located and wired, unions added where access allows. |
| Manifold rebuild | flat, after diagnosis | All valves replaced as one assembly — priced as a fixed number, not per surprise. |
| Valve locate & box raise | from $[XX] | Found electronically by wire tracing, raised to grade, labeled. |
Your flat rate depends on depth, access, and parts — but once quoted, it does not move. You approve the number before a shovel touches dirt. Full breakdown with examples on our sprinkler repair cost guide.
Local knowledge
Why valves fail here — age meets North Texas water
Valve failures in our territory follow two stories: how old the manifold is, and what our sediment-heavy water and moving clay have been doing to it.
The age map — same streets, same failures
Subdivisions install their irrigation in one season, so valves fail in batches: the 1955–75 brass originals in Richardson’s Canyon Creek and Richardson Heights seize rather than leak; the 1960s–80s first-generation plastic east of US-75 in Plano and old Allen goes brittle at the bonnet; and the 1990s builder-grade manifolds of Stonebridge Ranch and Preston Vineyards are crossing 30 years right now, street by street.
That’s why our quote on an aging system covers both paths — this valve today, or the manifold once — with five-year math you can check. The day one diaphragm dies, its siblings are rarely far behind.
Water & soil — the two quiet killers
North Texas surface water carries sediment that settles exactly where a valve can least afford it: under the diaphragm seat. A single grain holds a valve open all night. Expansive Blackland clay does the structural damage — heaving boxes, racking manifolds, and side-loading threaded connections until they weep.
Both have fixes that outlast the symptom: filtration screens where supply allows, gravel-bedded boxes that drain, and unions on every replacement so the next repair takes minutes instead of a saw. Build it so the box never needs a leak call again.
Decisions & brands
Rebuild it, replace it, or rebuild the manifold?
The right answer is arithmetic, not instinct — parts availability, the valve's siblings, and what access costs. Here's how we call it, in the open.
The decision — how we call it
| Situation | Our call |
|---|---|
| Healthy body, failed rubber or coil | Rebuild — diaphragm or solenoid, fraction of replacement cost |
| Cracked body, stripped threads, no parts made | Replace the valve, add a union for the future |
| Second failure in the same box within 2 years | Quote the manifold rebuild alongside — your choice |
| Brass-era originals (1950s–70s) | Retrofit modern valves onto sound pipe — don’t condemn the system |
Every quote shows the single-valve price and, where the age says so, the manifold price next to it — with the five-year math. Budget ranges live on the sprinkler repair cost guide.
Brands we rebuild daily
Rain Bird DV and ASVF, Hunter PGV and SRV, Irritrol and Hardie 205 and 2400 series, Toro, Orbit — rebuild kits ride in the truck for all of them. Discontinued and brass-era valves get matched replacements threaded onto the existing pipe, with the zone re-documented so the next tech (us or anyone) isn’t starting from zero.
Texas law requires a TCEQ-licensed irrigator for any paid valve work — it’s the same license that lets us alter the system properly when a straight swap isn’t the right fix. Ask any company for their LI number; ours is LI0026061, on every page of this site.
Your specialist
Meet Jonathan, your irrigation specialist
Eldorado isn't a call center dispatching whoever's available — when you call, you're talking to the licensed irrigator who shows up. Jonathan has been rebuilding North Texas valves and manifolds since 2013, holds Texas irrigator license LI0026061, and works out of east Plano, surrounded by the oldest manifolds in Collin County.
His rule on every job is the one customers keep repeating in reviews: fix only what's broken. You get a zone-by-zone diagnosis, a flat price before work starts, and an honest answer when something doesn't need replacing.
The visit
How a repair visit works
No mystery invoices. The price is on the table before a shovel touches dirt.
Call & describe
Tell us what the zone is doing — stuck on, dead, or weeping. Stuck-open zones jump the queue; we'll tell you how to kill the water at the backflow while you wait.
Zone-by-zone diagnosis
We run every zone and meter-test the electrical path — so you pay for the part that failed, not the part that was easiest to blame.
Flat quote, your call
You get the exact price before any work begins. The service call fee is applied to the repair.
Repair & prove it
We fix it, cycle the valve open and closed with you watching, and label the box so nobody hunts for it again.
Field record
Recent valve work
Real jobs, our own photos — valve boxes, manifolds, trench lines, and the lawns after.
Reviews
What our customers say
"Many charge outrageous fees and try and upsell. Eldorado doesn't do that. Pleasant, responsive and most importantly, honest... 5 star and will be my go-to sprinkler guys."
"Came out same day and took care of business at an unbelievable price. Took about 30 minutes to diagnose and repair. Would absolutely utilize again."
"They gave me options and fixed only what needed to be fixed. They are honest good people that do good work."
Questions
Valve repair, asked & answered
How much does sprinkler valve repair cost?
Diaphragm and solenoid rebuilds start at $[XX]; full valve replacement runs $[XXX]–$[XXX] depending on access, depth, and whether wiring needs remaking; manifold rebuilds are quoted as one flat number after diagnosis. The $[XX] service call covers a full system diagnosis and is applied to your repair — you approve the exact price before any work begins. Full breakdown on our sprinkler repair cost guide.
My zone won’t shut off — what do I do right now?
Stop the water at the irrigation isolation valve on your backflow assembly — the brass unit near the meter, usually with a blue or yellow handle. Turning the controller off won't help; a stuck valve ignores it. Then call us: stuck-open zones are priority calls because every hour is on your water bill.
Can a sprinkler valve be rebuilt instead of replaced?
Usually, yes — if the body is sound and the model still has parts, a diaphragm or solenoid rebuild costs a fraction of replacement and we do it on the spot. We replace instead when the body is cracked, the bonnet threads are stripped, or the model is so old no kit exists — common on 1980s brass and early Hardie/Irritrol units.
Why is one zone completely dead?
Coin-flip between the solenoid and the wiring, and the valve body is usually fine either way. We meter-test the solenoid and the field wiring before replacing anything — it's how you avoid paying for a new valve when a $[XX] solenoid or a corroded splice was the whole problem. See sprinkler wiring & controller repair.
Should I replace one valve or rebuild the whole manifold?
Arithmetic, not instinct: valves on a subdivision-era system were installed the same week and age together, so the second failure in one box inside two years usually means the rest are close. We quote both numbers — this valve today, the manifold once — with the five-year math, and the choice is yours.
My valve box is full of water — is that a leak?
Sometimes rain, often a leak. We pump the box dry and watch: water returning with the system off points to a supply-side leak; water that appears when a zone runs points at the valve assembly or its fittings. Diagnosis first — a flooded box has three different causes with three different prices.
You can’t find my valves at all — can you locate them?
Yes, electronically. We trace the valve wiring from the controller with a locator, which leads to every valve — no exploratory trenching across the lawn. Then we raise the boxes to grade and label them, so this is the last time anyone hunts.
What’s a weeping valve? My heads dribble after shutoff.
A valve that doesn't fully seat lets a trickle past, and it surfaces at the lowest heads for hours after the zone stops. On sloped yards we first rule out normal low-point drainage — that's fixed with check valves at the low heads, not a valve repair. If it's the valve, a rebuild usually cures it.
Does valve repair in Texas require a licensed irrigator?
Yes. Texas law requires anyone who installs, alters, repairs, or services an irrigation system for compensation to hold a TCEQ irrigator or irrigation technician license. Eldorado is owned and operated by a Texas Licensed Irrigator, LI0026061 — ask any company for theirs before they open a valve box.
Can I repair a sprinkler valve myself?
On your own home, legally yes — and honestly, a diaphragm rebuild on a healthy modern valve is a fair DIY job. We published our full diagnostic and rebuild sequence so you can try it with the same steps we use. The moment brittle plastic starts crumbling, stop and call; forcing a 30-year-old bonnet turns a small repair into an excavation. See our DIY sprinkler valve repair guide.
What valve brands do you service?
All the majors — Rain Bird DV and ASVF, Hunter PGV and SRV, Irritrol and Hardie 205/2400, Toro, Orbit — with rebuild kits on the truck. Discontinued and brass-era valves get modern replacements retrofitted onto the existing pipe; the system doesn't need to be condemned just because its brand died.
How long does a valve repair take?
Rebuilds and solenoid swaps: 30–90 minutes including diagnosis. A full valve replacement is usually under two hours; a manifold rebuild is a half day. You get the time estimate with the flat quote, before work begins.
Do you offer same-day valve repair?
Same-day or next-day for most calls, and stuck-open zones move to the front — they're costing you water by the hour. Call (469) 970-2715 with what the zone is doing and we'll give you an honest arrival window.
What areas do you cover for valve repair?
Everything within about 30 minutes of our east Plano shop: Plano, Frisco, McKinney, Allen, Richardson, Dallas, and North Dallas.
Service area
Valve repair available across North DFW
Licensed repair within about 30 minutes of our east Plano shop:
Searching “sprinkler valve repair near me” from anywhere in Collin County or North Dallas? Our east Plano shop puts a licensed irrigator within about 30 minutes of you, with rebuild kits for every major brand already on the truck.
Valve symptoms with deeper roots? See sprinkler leak detection & repair, wiring & controller repair, or do it yourself with our DIY valve repair guide.
Zone stuck on right now?
Kill the water at your backflow valve, then call — stuck zones jump the queue.