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Green grass irrigation services

Sprinkler system maintenance
Sprinkler system repairs needed

Responds within a day

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If you hire this pro, you’re covered by a money-back guarantee. Learn more

If you hire this pro, you’re covered by a money-back guarantee. Learn more

About
Quality sprinkler and irrigation repair with a focus on what your system truly needs—nothing more, nothing less. With 12 years in business and a small, dedicated team of three, we respond quickly, deliver reliable work, and keep our pricing reasonable. Our priority is water conservation: we upgrade or install systems using high-efficiency materials to help you save water and protect your landscape. If you’re dealing with leaks, dry spots, or an outdated system, we’re ready to help. Contact us to schedule a visit and get your irrigation working efficiently again.
Overview

Hired 36 times

Serves Littleton, CO

Background checked

3 employees

12 years in business

Business hours

SunClosedMon8:00 am - 6:00 pm

Payment methods

This pro accepts payments via Cash, Check, Credit card, Venmo, and Zelle.

Services offered
Property type

Residential

Sprinkler system maintenance

Winterization

Spring activation

Midsummer checkup

Projects and media
Projects and media
Reviews

Customers rated this pro highly for work quality, professionalism, and responsiveness.

Excellent 4.9

34 reviews

5

97%

4

0%

3

0%

2

0%

1

3%

Your trust means everything to us. Learn about our review guidelines.

Read reviews that mention:

pro avatar
Maha K.

Jun 10, 2026

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Hired on Thumbtack

Ulises is responsive, reliable, and a sweetheart! He took care to restart our system, taught me a few things to manage the system, and got my veggie system all setup. I highly recommend him. Mil gracias!

Details: Residential • System won't turn on • Sprinkler head(s) need to be relocated

Sprinkler and Irrigation System Repair and Maintenance
pro avatar
Laine W.

Jun 26, 2026

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Hired on Thumbtack

Ulises with Green Grass Irrigation has been amazing! I just bought a new home and didn’t know how to work the sprinkler system. He answered my call within an hour and had everything up and running for me within a few days - he even came back a second time to fix some valves that weren’t working and used parts I already had to help me save money. He was extremely professional, kind, and the price point was excellent. I cannot recommend him enough!

Details: Residential • No repairs, only maintenance • Spring activation - system needs to be reactivated

Sprinkler and Irrigation System Repair and Maintenance
pro avatar
Jose S.

Jul 10, 2026

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Hired on Thumbtack

Needed some replacements and adjustments. Took the time to assess my system’s performance and made real recommendations without trying to add unnecessary scope. Worked diligently with clear expectations from the start. Highly recommended!
Sprinkler and Irrigation System Repair and Maintenance
pro avatar
Susan S.

Jul 16, 2025

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Hired on Thumbtack

Highly recommend Ulisses! Our ‘smart’ sprinkler system wouldn’t come on and everything was drying up. He’s so knowledgeable and professional and got the job done.

Details: Residential • System won't turn on • Sprinkler head is broken • Spring activation - system needs to be reactivated

Sprinkler and Irrigation System Repair and Maintenance
pro avatar
Dean G.

Oct 24, 2025

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Hired on Thumbtack

Sprinkler Winterization. excellent work, on time, pleasant person to deal with.

Details: Residential • No repairs, only maintenance • Winterization - system needs to be blown out and shut off

Sprinkler and Irrigation System Repair and Maintenance
Credentials
Background Check

Ulises Flores

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