Grounded Lawn Landscaping
“Nick is very knowledgeable, honest, professional, friendly, great at communicating during all times of the process and very meticulous paying close attention to the small details.”
Best Sprinkler & Irrigation Contractors in Thornton, CO
24 contractors listed · 4 in Thornton · 2 open 24/7 · 11 open weekends · 20 rated 4.5+
Data verified October 28, 2026
GKC Denver Landscaping Contractors
“These guys came out to my work site in Broomfield site 72 for cobblestone and crushed it looks absolutely amazing took the time to introduce themselves spent the time the other company that was coming out didn't….”
North Metro Lawn Care
“I used North Metro for my weekly service last year after having another service scalp my lawn and destroy landscape decorations and I was so grateful I found them.”
Sprinklers
“I moved into a house and the entire yard was like scorched earth from the previous homeowners neglect sprinklers came over they assess the existing sprinkler system and they were able to save me a lot of money by repairing the existing sprinkler syst...”
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.”
Horizon Property Services
“We also found Laura Wessels very agreeable to work with during the advance planning, and with her cooperation were able to work out the project to fit our budget.”
Listed for homeowners in and around Thornton, 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: Thornton, CO
4 of the 24 contractors we list are based in Thornton; the other 20 serve Thornton from towns including Denver (11 mi), Westminster (7 mi) and Arvada (13 mi). The contractors on this page are rated from 4.3 to 5.0 across 3,180 reviews; 14 have 50 or more reviews and 20 are rated 4.5 or higher. When customers rate these contractors on specific qualities, they most often praise professionalism (91%), quality (87%) and responsiveness (84%). The topics that come up most in reviews of the contractors on this page are "price", "communication" and "efficient". 2 are open around the clock; 11 are open on Saturdays and 2 on Sundays. The services the contractors on this page list most often on their websites are hardscaping (2), irrigation (2) and landscaping (2). 6 have a BBB rating of A or A+. 11 have ten or more years of experience, the longest 27 years. 2 offer emergency call-outs; 3 offer financing or payment plans; 10 give free estimates; 2 are family- or locally-owned and 2 list coupons or special offers. 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.
Can any of these contractors come out on Saturdays or Sundays?
Weekend availability is stated by 11 of the 24 contractors here. Two stretches of the year are solid for everyone in this trade: the startup rush in spring and the shutdown rush in fall. Book the seasonal visits ahead of the crowd and keep the weekend slots for the repairs that cannot wait.
A Cut Above Landscape
“I forgot to ask about gravity draining a secondary pipe and they came back to my house to double check that everything was okay and functioning as it should.”
CPS Distributors
“They have all your lawn and gardening items you need but unfortunately this is a wholesale Outlet only you need to own a business to be able to purchase from this supplier but they run the best supplier for Pond and sprinkler systems they also have ...”
Sprinkler Doctor
“I also appreciate seeing the owner of the Sprinkler Doctor respond, even to any negative online reviews, because EVERY TIME the first thing that the owner does is takes responsibility for the company's actions while dealing with an occasional dissati...”
Olson Outdoors
“I very much appreciate Brandon and his team at Olson Outdoors for their professionalism in honoring work warranties and trouble shooting skills with out sprinkler system.”
Mile-Hi Sprinkler
“I've lived at this house for almost 10 years and Mile-Hi has always done the sprinklers but I have never had anyone as professional, hard working, and caring as Jeremy and his partner.”
Irrigation Genies
“He was also able to identify a leak that probably would have otherwise remained hidden/unknown to me until it was too late (seriously, give this man a raise, IG).”
Highlands Landscaping & Fencing
“We worked with Brandon and Pantic on our first project moving sprinklers and laying out new sod and we were so impressed with their work, we were excited to have them start our patio and seat wall project next.”
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.”
Westside Grounds
“Adrian, Wes and team work hard to hold integrity and treat people's properties how they would treat their own all while serving the community with full Grounds Maintenance and Landscaping Services.”
Standard Services Group
“Mike & his team did such an amazing job xeriscaping our front yard he completely transformed our landscape, took out all the existing grass turned our irrigation lines into drip lines for all the shrubs & trees he planted, the landscape design with t...”
Spring Green Landscaping and Lawn Maintenance LLC
“Spring Green was definitely one of the more affordable options, and Edwin was very confident whereas I sensed some fear/doubts from the other companies.”
Hawkins Brothers Lawn and Sprinkler
“He suggested I change out my continuous spray heads for rotary heads which helped to improve the water pressure and gave greater reach for the water spray to reach hard to water areas.”
Happy Roots
“They care about having a personal relationship with you and by the end of that first summer 3 years ago neighbors were complimenting our beautiful yard and asking what happened.”
Greenview Solutions
“The addition of lighting on the fence, trees, and other areas has revolutionized the look and usability of my backyard at night, creating an enchanting ambiance.”
The Green Fuse Landscape & Design
“We looked at Xeriscape plants and free landscape designs on Denver Water's website but weren't really inspired and the thought of ripping out the lawn and replanting ourselves didn't appeal—it just seemed like too much for the two of us to tackle.”
All In One Home Service
“The work had to be paused for freezing temperatures, which Sean informed me of, and I appreciated him coming out and notifying me of that fact rather than doing the work and risking a leak.”
J.S. Sprinklers & Aeration
“He was able to fit me in his schedule the same day, good price, was quick, professional and did more than just fix my problem - he explained the why and taught me how to care for my sprinkler system.”
Topcut
“Kevin and his crew not only transformed the space aesthetically but also ensured practicality and sustainability, selecting plants that thrive in the local climate and require minimal maintenance.”
Why these companies made our list
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