Wildomar sprinkler repair by STL Irrigation Co.
Broken sprinklers, misfiring valves, wire and timers, fixed by owner Elmer Diaz. Free irrigation analysis, 5 AM–7 PM daily.
- Neighborhood Favorite 2025 on Nextdoor
- “14+ years in the industry”Elmer Diaz
- Residential and commercial
- Free estimates
What we fix
Start with a free irrigation analysis: Elmer looks at the system and gives you a detailed quote before any work.
| Station | Service | What it looks like |
|---|---|---|
| 1 | Broken sprinklers | Snapped heads, heads that stay down, spray hitting the sidewalk. |
| 2 | Misfiring valves | A zone that won’t come on, won’t shut off, or runs by itself. |
| 3 | Wire | Cut, chewed or corroded valve wire between the timer and the valves. |
| 4 | Troubleshooting | Something is off and you can’t tell what: a soggy patch, a dry strip, a higher water bill. |
| 5 | Timer installation and programming | A new controller put in, or the one you have set to water when it should. |
| 6 | New installation | A new irrigation system for a lawn, the beds or the whole yard. |
| 7 | Mainline installation | New main line, including runs under a driveway. |
| 8 | Repairs | Leaks, broken pipe and any other irrigation issue you may have. |
| 9 | Seasonal maintenance | Getting the system in shape before summer heat, and keeping it there year-round. |
| 10 | Landscape design | A landscape design for your yard, with a detailed quote. |
| 11 | Gardening | Yes, we do gardening too. Ask about your property. |
Not sure which one it is? Call or text and describe what you see.
Free irrigation analysis
Here is what happens when you call.
“I provide FREE irrigation analysis with a detailed report of my findings.”
Elmer Diaz
“I’d provide you with a detailed description of your systems issues (if any are found) along with a detailed quote for the repairs.”
Elmer Diaz
Call or text
(951) 566-6375, any day from 5 AM to 7 PM. Tell Elmer what you are seeing.
Walk-through
Elmer comes out and goes over the system with you. The irrigation analysis is free.
Detailed report and quote
You get a written report of what he found and a detailed quote for the repairs.
You decide
Look it over and decide whether to go ahead. The work starts when you say so.
Our work
Valve, wire and mainline jobs by STL Irrigation Co.
About Elmer
STL Irrigation Co. is Elmer Diaz, based in Wildomar. He handles irrigation from a single broken head to a new mainline, and does landscaping and gardening too, for homes and commercial properties.
“STLirrigation delivers fast, professional irrigation repairs and upgrades that eliminate costly issues. Honest pricing, reliable service and results you can see”
Elmer Diaz
“14+ years in the industry knowledgeable, experienced and trustworthy”
Elmer Diaz
“Meeting all your landscaping needs the right way not the easy way”
Elmer Diaz
What neighbors say
“I am absolutely delighted with the work Elmer did! I did a lot of research on this, got quotes and could see that Elmer knew exactly what we were looking for.”
Kristine G. Yelp“Elmer did a phenomenal job replacing my sprinkler box and connecting my 11 group system....Great attitude and great job highly recommend”
Jeff C. Yelp“Extremely reliable, on time , fair prices. I am completely lost when it comes to irrigation . I found it amazing how he took the time and effort to explain each break he was repairing.”
Emily D. Yelp“Elmer replaced the sprinkler system at the front yard of our home and installed a drip system at the back yard in August.”
Elaine Yelp“Elmer with STL Irrigation does work for me and I highly recommend him. 951-566-6375. Tell him I referred you.”
W. H. Nextdoor“I have the Bhive this guy is very good. 951 566 6375”
J. S. Nextdoor
Questions
Do you charge to inspect my sprinkler system?
No. STL Irrigation Co. offers a free irrigation analysis: Elmer checks the system, writes up what he finds, and gives you a detailed quote for any repairs before work starts. Call or text (951) 566-6375 any day between 5 AM and 7 PM to set up a walk-through.
What can you fix?
Broken sprinklers, misfiring valves, damaged wire, timers that need installing or programming, and any other irrigation problem you can’t trace. We also install new irrigation systems and mainlines and handle seasonal maintenance, so a small leak and a full upgrade go to the same call.
When are you open?
Every day of the week, 5:00 AM to 7:00 PM, including Saturday and Sunday. That makes an early-morning check easy, before the heat and before you leave for work. Call (951) 566-6375 and Elmer will set a time that works for your yard.
How much will my repair cost?
It depends on what’s broken, so we don’t post prices. Elmer looks at the system for free, explains what each problem is, and gives you a detailed quote first. You decide before any work begins.
Do you do landscaping too?
Yes. Besides irrigation we do gardening and landscaping work and can put together a landscape design with a detailed quote. Customers have had front-yard sprinklers replaced, drip systems added and whole back yards landscaped.
Do you work on commercial properties?
Yes. STL Irrigation Co. works on residential and commercial irrigation, from a single broken head to a new mainline under a driveway. Call (951) 566-6375 to describe the property and schedule a free look at the system.
Where are you based?
STL Irrigation Co. is based in Wildomar, California, and was named a Nextdoor Neighborhood Favorite in 2025. Call (951) 566-6375 to check that Elmer can reach your address.
Hours
| Monday | 5:00 AM – 7:00 PM |
|---|---|
| Tuesday | 5:00 AM – 7:00 PM |
| Wednesday | 5:00 AM – 7:00 PM |
| Thursday | 5:00 AM – 7:00 PM |
| Friday | 5:00 AM – 7:00 PM |
| Saturday | 5:00 AM – 7:00 PM |
| Sunday | 5:00 AM – 7:00 PM |
Open every day, 5 AM to 7 PM.
Service area
Based in Wildomar, California.
Residential and commercial work across Riverside County–Orange County.
Call (951) 566-6375 to check that Elmer can reach your address.