Ward's Lawn Service
“Everything works great now, and while none of this was due to problems in the irrigation system itself, Nic and Juan made half a dozen trips here to help try to identify the problem.”
Best Sprinkler & Irrigation Contractors in Longmont, CO
24 contractors listed · 9 in Longmont · 9 open weekends · 17 rated 4.5+ · 6 show a license
Data verified October 28, 2026
LID Landscapes
“We also found that one of the plants that was supposed to be the same as several others, was something different, and again LID came back and replaced the plant.”
SJ Ward Landscapes
“Ken (Site Supervisor) was great on following up on details that I thought needed attention especially after the initial 30 days when the weather turned hot and was impacting the freshly laid sod.”
Mountain View Landscaping & Concrete
“Fernando and his crew were super professional, courteous, friendly, and fun to work with--plus the project turned out amazing--they totally transformed our yard!”
Flores Landviews
“They are competent, conscientious, efficient, and they generally charge less than nearly all the other contractors around Longmont (I know, because my wife is the HOA treasurer).”
Nick's Landscape Service LLC
“Not only did Nick and his team do the work professionally, they also came back a year later when a post was warping and replaced it at no charge and took care of a few other things that they saw when they were here.”
Listed for homeowners in and around Longmont, CO, these 24 contractors install, repair and winterize sprinkler and drip systems. Each card repeats what the company says about its own services, hours and free estimates; the star ratings and review lines are pulled from public reviews.
Area overview: Longmont, CO
9 of the 24 contractors we list are based in Longmont; the other 15 serve Longmont from towns including Boulder (13 mi), Loveland (17 mi) and Firestone (9 mi). The contractors on this page are rated from 3.9 to 5.0 across 1,011 reviews; 6 have 50 or more reviews and 17 are rated 4.5 or higher. When customers rate these contractors on specific qualities, they most often praise professionalism (92%), quality (90%) and responsiveness (79%). The topics that come up most in reviews of the contractors on this page are "price", "communication" and "efficient". 9 are open on Saturdays and 5 on Sundays. 6 show a license on their websites and 8 have a BBB rating of A or A+. Domain records put 15 websites of the contractors on this page at ten or more years old; the oldest dates from 1999. 11 give free estimates; 7 are family- or locally-owned and 3 list coupons or special offers. We have a website on file for all 24 of the contractors on this page; 22 publish a contact page; 18 list a public email and 2 take bookings online. We count these figures across the contractors on this page; distances are straight-line, and hours and prices change, so confirm the details with the contractor before you book.
Is the first site visit charged for?
A no-charge assessment is offered by 11 of the 24 contractors here. Expect a repair call to be billable either way, because tracing a buried leak is the work itself. For a new system, a free visit is normal, and the proposal that follows should show zones, head types and spacing rather than one number at the bottom.
Green Man Lawn and Landscape
“One of the best Landscaping companys in colorado all year round work brand new trucks and equiment very well staffed and very profesional work, i would defenetly recomend greenman to any one.”
Organo-Lawn
“After hiring some of the bigger named lawn care companies over the years and always being disappointed in their results and basically the service in general.”
Royal Turf Landscape & Irrigation
“They then still spent additional time consulting on best practices for programming and lawn care - and even reprogrammed my system and changed the batteries in my Rain Bird sensor.”
G & G Sprinker Systems
“After going over the design plan and layout, just a few days later I have a fully functioning, integrated "Smart Irrigation System" that can be controlled via an App on my phone.”
Boulder Lawns
“I have worked with Boulder Lawns for the last 5 years and have been consistently impressed with the high quality of their work and their responsiveness.”
Blue Tree Resources Excavation & Demolition
“He made sure the site was leveled for proper drainage of rain water, cleaned up the job site by hauling away all the debris and even swept away stray dirt.”
Thrive Lawn Solutions Inc
“Brandon who is in charge of spraying and Frank and Cullen who did the plugging and overseeding have been very respectable and aware of protocol during this covid time.”
Bedrock Landscape LLC
“Bedrock met with us, told us what they were going to do and when, showed up as promised, worked continuously until the project was completed, made sure it was done to our satisfaction.”
Colson Sprinkler & Landscaping
“Knowledgeable, timely, fast and efficient, friendly, the Colson family provides a great 5-star service to the residence and businesses of Loveland, CO!”
Primavera Landscaping & Construction
“We needed some major work done that included: regrading our lawn, replacing the grass, sprinklers, a concrete driveway extension and a walkway on the side of our home.”
Green Guys
“They allowed us to be very involved in the project with selection of materials and plants (especially since material shortages out of their control forced some modifications to our existing landscape plan).”
Fox Landscaping LLC
“We appreciated their knowledge and guidance throughout the process including learning about the different artificial turf, how everything was going to be laid out and more.”
Calaway Sprinklers
“We had purchased property in the Kona that came with the drip irrigation system that had not been used in years and they came out spent a half a day and got the whole system up and running.”
Aspen Landscape Management
“Friendly people.”
Taylor Made Sprinklers
“Prompt, efficient, everything you wish more home services businesses in boulder were like.”
Long Vista Landscaping LLC
“We have had an excellent experience working with Jose and his crew while they installed a sprinkler system, laid down sod, and planted a few bushes/trees.”
Wild Earth Gardens
“Then their terrific and personable team executed the design flawlessly, transforming our yard into a lovely garden setting in front, and landscaped garden/lawn in back.”
Irrigators
“Unlike other sprinkler companies, Irri Gators was able to get me on their schedule right away and wow--Darren is the most thorough, efficient, and knowledgeable person to assess my sprinkler system yet--I'm very impressed.”
Why these companies made our list
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