Peninsula Irrigation
Company Overview
We have been a trusted name on the SF Peninsula for over 45 years! We specialize in residential irrigation and custom lighting systems, including installations and repairs. We have a well-trained team that is happy to serve your needs.
Peninsula Irrigation is a family-owned and operated company. With over 40 years in the industry, we have established ourselves as leaders in both commercial and residential outdoor plumbing, irrigation, and sprinklers on the San Francisco Peninsula.
We specialize in all areas of outdoor potable plumbing and irrigation, ranging from large-scale projects to small repairs. We take pride in meeting the irrigation and lighting needs of the SF Peninsula! Nearly 20 years ago, I started with Peninsula Irrigation, learning from the original owner, Randy Thomas. After Randy’s retirement, I had the opportunity to uphold the Peninsula Irrigation tradition as the new owner. Many of our clients have become long-time friends, and everyone at Peninsula Irrigation looks forward to building a strong working relationship with you as well!
Business Services
- Electric installation or replacement
- Electric repair
- Irrigation construction
- Irrigation design services
- Irrigation repair or maintenance
- Light fixture installation
- Light fixture repair
- Outdoor lighting installation
- Plumbing inspection
- Plumbing installation or replacement
- Plumbing repair
- Water pipe installation
- Water pipe repair
Business Location & Hours
Mon: | 8:00 AM - 4:30 PM |
Tue: | 8:00 AM - 4:30 PM |
Wed: | 8:00 AM - 4:30 PM |
Thu: | 8:00 AM - 4:30 PM |
Fri: | 8:00 AM - 4:30 PM |
Sat: | Closed |
Sun: | Closed |
Recommended Customer Reviews

Horrible! What a nightmare! They charge outrages price, more expensive than doctors or lawyers. They lied about the water leaks, the need the replace valves, bring family to bill the time, wrong equipment, etc,

We were very pleased with this company. They were very professional--answering their phone promptly, making an appointment for the next day, and sending out a true expert on irrigation, Junior Martinez. Irrigation and drip systems can be complicated and Junior exceeded all of our expectations on how much he knew and how quickly he fixed all of our problems in one hour! Yes, they were expensive, but we found that they were worth it. We are good to go for some time thanks to his expertise.

TL;DR - Horrible and expensive.
Here's the deal, hour #1 of visit #1 is *really expensive* (like working with a lawyer expensive), then after that every hour is reduced to just *expensive*. They bill in 5 minute increments from the time the van pulls up to the time it goes away. So when the tech answers a phone call, forgets a tool, or make a wrong turn, it's on your dime.
In my case, they left me with a faulty repair / home water feature. I called twice at 3:30pm and they didn't get back to me until the next day. Had to turn the water off to the house and I'm not sure how many gallons of water was wasted.
What did I get in return? An overbilled invoice and an apology. In fairness, the tech was a nice guy but I don't think Peninsula Irrigation (the company) did me right.
I will never use their service again.

I can't speak to their work, but I can report that it took them over SIX WEEKS to get an estimate to me after a site visit and only after I emailed them to ask about why I still hadn't heard anything. Ours was a simple straightforward job that could have been turned around quickly. No reason why it took that long to hear back. I understand companies are very busy, but they need to manage expectations and communicate better.

Attentive to detail, thoughtful, knowledgeable, informative, and thorough. We had a problem that arose just prior to our departing on a 3 week trip. Nate came out to diagnose and discuss the issue. While we were away, he kept in contact with us frequently, by email, telling us what was happening and asking how we wanted to proceed. When the job was finished, he came out again, personally, to check on all the work. I find this type of followup to be exceptional. Most businesses just finish the job and send a bill. The other men who worked at our home were very courteous and professional.

Peninsula performed exceptional work for my defunct and outdated sprinkler system. The previous contractor I hired for the job was a real amateur and made a mess of everything including leaks and exploding pipes. I knew it was time to call in real professionals to complete the job and fix the mess. Josh and his small army rolled in at dawn and got the job done with high quality results. Josh was very knowledgeable and friendly (even though I sprayed him with the hose) in all phases as was his crew. Highly recommend, especially if it is a difficult task!

We bought a house a few months ago and Peninsula came out and did a full system test. They quickly identified 2 major leaks and made the necessary adjustments to the system. The owner Nathan is responsive and his technicians are courteous.

Very expensive and less than effective. Technician adjusted/replaced a few sprinkler heads and told us that our water pressure was too low to service the irrigation layout. He recommended replacing the line between the meter box and the house for $2,200. The technician from the company we contacted for a second bid adjusted the pressure with a few turns of a valve. Simple...10 minutes...fixed. Very glad we didn't proceed with Pen Irrigation's recommendation and therefore can't recommend them.

During the four years we've used Peninsula Irrigation, we've been very happy. They are quick to call back and appointments are always timely. Josh and others have diagnosed problems with our system and conducted repairs fast. A+

Fantastic service and experience- they replied quickly to my initial voicemail, sent a reminder email the day before my appointment, and the tech (Josh, who was great) called when he was on his way. All in all, it took about 45 minutes for our issue to be diagnosed and fixed, with clear explanations of what was happening and why. Josh also explained other, non-critical, issues with our sprinklers, what it would cost to fix them, and then left me to make a decision about it without any pressure or salesmanship.
I'll definitely call them again.