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  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon126
    Verified lawn irrigation services reviews

Verified Reviews for Lawn Irrigation pros in Boulder, CO

*The Angi rating for Lawn Irrigation companies in Boulder, CO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Lawn Irrigation needs.

*The HomeAdvisor rating for Lawn Irrigation companies in Boulder, CO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Lawn Irrigation needs.

Last update on August 16, 2026

Top-Rated Lawn irrigation specialists in Boulder - Updated Nov 2026

Avatar for Glacier Irrigation, LLC
Glacier Irrigation, LLC
5.0(
34
)
Lawn and Garden Sprinkler System - RepairLawn and Garden Sprinkler System - InstallLawn and Garden Sprinkler System - Repair - For Business+1 more

Serving Boulder, CO and surrounding areas

Approved

In business since 2021

Free estimates

Warranties offered

"I highly recommend Glacier Irrigation, as Sam and his team have done an exceptional job installing a new sprinkler system on my extensive property spanning over 2 acres. The high-efficiency system they implemented ensures complete coverage and significantly reduces water consumption compared to my previous setup. Moreover, in addition to the sprinklers for the lawn, they expertly installed drip lines for both vegetable and non-vegetable plants. The project was executed professionally, adhering to the agreed schedule and budget. I wholeheartedly endorse Glacier Irrigation for its outstanding work."
New High Efficiency System!
New System Install. Property was a dirt lot before
New 5 Zone system install
New system install.
Ditch Witch VP30 Trench-less Vibratory Plow!

+12

Response time1 day
Response rate89%
5 neighbors recently requested a quote
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Avatar for Hamilton Irrigation Company
Hamilton Irrigation Company
4.6(
156
)
Sprinkler System for Lawn and Garden - Winterize or Activate

Serving Boulder, CO and surrounding areas

Approved

In business since 2015

Free estimates

Warranties offered

"I would recommend this irrigation to anyone. The prices were reasonable and the work was well done and the man was very personable."
Response time3 hrs
23 neighbors recently requested a quote
Recommended by96%of homeowners
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Avatar for LawnTender - Organic Lawn and Sprinkler Services
LawnTender - Organic Lawn and Sprinkler Services
4.9(
33
)
Sprinkler System for Lawn and Garden - Winterize or ActivateLawn and Garden Sprinkler System - RepairLawn and Garden Sprinkler System - Repair - For Business

Serving Boulder, CO and surrounding areas

Approved

In business since 2023

Free estimates

Small jobs welcome

"Benjamin has excellent communication and has done better work than any lawn care professional that I have hired before. If you are looking for high quality work and someone who follows through with commitments, LawnTender should be the first place you call!"
Response time2 days
73 neighbors recently requested a quote
Recommended by45%of homeowners
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Avatar for Great Lawns Landscaping and Snow Removal, LLC
Great Lawns Landscaping and Snow Removal, LLC
4.9(
40
)
Lawn and Garden Sprinkler System - InstallLawn and Garden Sprinkler System - Install - For BusinessLawn and Garden Sprinkler System - Repair+1 more

Serving Boulder, CO and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"David and his son, David (Great Lawns Landscaping) upgraded a very old distribution box of our irrigation system, which was installed personally by a previous owner, so that it would operate like a brand new system. They took on a job that most irrigation contractors would only shake their heads. Not only did they intelligently determine how to make a tricky repair, but they did it right away at a very reasonable cost. They will be my first choice for irrigation issues in the future. I highly recommend them."
Response time8 hrs
Response rate86%
Recommended by100%of homeowners
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Avatar for D & D Tree Service & Landscape
D & D Tree Service & Landscape
4.7(
106
)
Lawn and Garden Sprinkler System - InstallLawn and Garden Sprinkler System - Install - For Business

Serving Boulder, CO and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Free estimates

Emergency services offered

"Hard working crew of three did an excellent job. Looking forward for D&D to do my lawn mowing, aeration etc and some tree trimming in the future."
dndtrees.com
Backyard Landscaping
Deck & Concrete
Summer Vibes
Response time1 day
151 neighbors recently requested a quote
Recommended by68%of homeowners
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Avatar for A-Z Services LLC
A-Z Services LLC
5.0(
15
)
Sprinkler System for Lawn and Garden - Winterize or ActivateLawn and Garden Sprinkler System - InstallLawn and Garden Sprinkler System - Install - For Business

Serving Boulder, CO and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

"A-Z Services has provided me with excellence service for many years. They have provided sprinkler startup and blowouts, sprinkler repair, landscape work, tree stump removal, lawn mowing, and lawn aeration. They have helped me urgently when needed and have been extremely reliable. I wouldn't think of using anyone else."
Logo
7 neighbors recently requested a quote
Recommended by14%of homeowners
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Avatar for NationScapes
NationScapes
4.7(
130
)
Lawn and Garden Sprinkler System - RepairLawn and Garden Sprinkler System - Repair - For BusinessSprinkler System for Lawn and Garden - Winterize or Activate

Serving Boulder, CO and surrounding areas

Approved

In business since 2019

Free estimates

Warranties offered

"Luke did a great job winterizing our irrigation system. He was professional and knowledgeable. Plus on time and fast!"
Sod and Sprinkler Install
Sod and Sprinkler Install
Before with weeds and dirt
Sod and Sprinkler System
Before

+2

Response time9 hrs
Response rate96%
Recommended by87%of homeowners
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Avatar for Knight Services
Knight Services
5.0(
7
)
Sprinkler System for Lawn and Garden - Winterize or ActivateLawn and Garden Sprinkler System - InstallLawn and Garden Sprinkler System - Repair

Serving Boulder, CO and surrounding areas

Approved

In business since 2011

Free estimates

Warranties offered

"Calvin is a jack of all trades. He worked on our roof, repaired our deck, did some lawn work, repaired the exterior of our house, performed maintenance on our irrigation system, winterized our irrigation system, and even support my home-based business by dismantling and disposing of large crates. If you need a job done around/on/in your home call Calvin!"
Flagstone Finished
Sprinkler Repair-Upgrade
Lawn Repair?
Irrigation Controller
Finishing Ground Cover.

+48

Response time3 hrs
Response rate90%
7 neighbors recently requested a quote
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Showing 1-10 of 276
Lawn Irrigation FAQs, answered by experts

If it’s been a few weeks and you haven’t seen anything pop up, double-check your seed packet and make sure you didn’t miss any steps. Did they need cold stratification (putting seeds in the freezer and then transferring to water before planting)? Do they have an exceptionally long germination period? 

 If you’ve followed all of the directions closely, you may just have had a bad batch of seeds. (Sadly, it happens.)

The best way to fix a lumpy yard depends on the cause. However, in many cases, you can address yard lumps by improving the health of your soil and turfgrass. Choose grass varieties that are best suited for your area and look for disease-resistant varieties. Fertilize and water your lawn as needed to keep it looking lush throughout the warmer months. Mow your grass at a height of 2 to 3 inches once or twice a week.

It’s best to fix lawn depressions during late spring. You want to wait until after your last frost date and when the yard is not too wet. This also allows ample time for new grass growth once you reseed.

If you use a starter fertilizer designed for this purpose, you can overseed and fertilize at the same time. If you opt to use a fertilizer for established grass or one with a weed control component, it's best to wait at least four to eight weeks after seed application to allow the new grass to take hold and establish itself. 

Whether you’re putting down fresh seed or reseeding, there are a few things to keep in mind when seeding your lawn. Be sure to choose the correct seed for your climate, seed at the right time of year, and water two to three times a day for the first week. Generally, Dudley recommends seeding in spring and fall as it is usually cooler and rainier.

The Boulder, CO homeowners’ guide to lawn irrigation services

From average costs to expert advice, get all the answers you need to get your job done.

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