Willco Tree LLC
“We called about 2:00 in the afternoon, sent photos, and since it was in such a dangerous position, they squeezed us in the schedule first thing the next morning.”
Best Tree Trimming & Pruning Services near Thornton, CO
2 of these companies are based in Thornton; the others serve Thornton from towns including Broomfield (6 mi), Westminster (7 mi) and Arvada (13 mi).
4 open 24/7 · 13 open weekends · 23 rated 4.5+ · 7 show a license
Data verified October 28, 2026
LCM Tree Services LLC
“They did a thorough trim on a large tree in our yard, trimmed and shaped our bushes, and even chopped up and piled some of the wood for our fireplace by request - all for an amazing price.”
J&A Tree Services
“So after the call back they were at my house in a couple of days for the estimate , we settled on a fair price ,and now I'm scheduled for 2 weeks from estimate or sooner if possible.”
DLC Arbor Services
“In working with Bill and Kyle (the arborists) they pointed out to me the scales that were all over the pine needles and had spread to all of my pinions.”
Canales Tree Service LLC
“I needed a tree stump removed and Canales Tree Service responded immediately, was able to come provide a quote within 2 days then the work was complete shortly after.”
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.”
Listed for homeowners in and around Thornton, CO, these 24 companies prune and trim trees. Hours, the services they name and any training they claim come from their own websites; ratings and quotes come from public reviews.
Area overview: Thornton, CO
The 24 companies on this page are rated from 4.3 to 5.0 across 2,601 reviews; 18 have 50 or more reviews and 23 are rated 4.5 or higher. When customers rate these companies on specific qualities, they most often praise professionalism (91%), quality (86%) and responsiveness (81%). The topics that come up most in reviews of the companies on this page are "price", "cleanliness" and "communication". 4 are open around the clock; 12 are open on Saturdays and 7 on Sundays. The services the companies on this page list most often on their websites are tree removal (7), tree trimming (6), plant health care (4), stump grinding (4) and tree pruning (3). 7 show a license on their websites; 3 list staff certifications (ISA) and 7 have a BBB rating of A or A+. 12 have ten or more years of experience, the longest 41 years. 6 offer emergency call-outs; 1 offers financing or payment plans; 15 give free estimates and 9 are family- or locally-owned. We count these figures across the companies on this page; distances are straight-line, and hours and prices change, so confirm the details with the company before you book.
Why are firms from other towns listed here?
Only 2 of the 24 companies give an address in Thornton. The others come from other towns within 20 mi. Tree crews travel to the job, so distance matters less than whether they will cross a county line for a small pruning visit.
All American Tree Plus
“Carl and his crew were affordable, timely, professional, attentive, nice, and did an AMAZING job cutting down some dead trees and trimming our junipers.”
Bullard Tree and Garden
“Forest heard the crash and didn't waste any time in coming over to ask for one, if I was ok, and then offered to help me carry my window to the location on the back of the house.”
10 Star Tree Care
“Tim oversaw all the work and his crew did a great job trimming several very large maple trees as well as some smaller trees, along with grinding down several stumps.”
American Stumpbusters
“We had a very tight access point to reach our stump, but American Stumpbusters had the right equipment to be able to reach the spot and complete the job.”
Flatirons Stump Removal
“I was impressed with how professionally and sympathetically Frank responded to the problem that I had, and with the advice that he gave me without holding me to the contract.”
Elaborate Tree Tender
“Arrived about 10" to 2PM, Set up, Cut down the tree, disposed of the tree and put down Epson Salt on stump, and covered to eliminate any sprouts from coming back up.”
Neighborhood Arbor Care
“They also trimmed back an evergreen tree that was hanging over our neighbors wiring and they cleaned up additional downed branches from the big wind storm.”
Jones Tree & Lawn
“We have had Jones Tree & Lawn care for our property for about 15 years and for all that time the work has been professional, timely, and successful in keeping my trees and lawn in good condition.”
GE Tree Service
“I've been with this company for a long time they've done all my houses and the work is actually wonderful very kind clean workers and great company In general”
Altitude Arborist
“We planted a new tree and it started looking pretty rough, so we called Altitude Arborist and they came out and provided a plan to get the tree healthy again.”
Ironwood Earthcare Tree Trimming and Removal
“Having dealt with other firms for over 20 years, I knew when I met Dereck Stroden from Ironwood that these were people (work team included )highly educated in their field, and a businessman, who puts customer before profit.”
Tree Keepers LLC
“Within a couple hours of my initial phone call to them, they had arrived, removed the large tree, and cleaned up my backyard as it was before the tree's fall.”
American Tree
“Troy used a conservative approach in his evaluation of those trees, since he saw what looked like the potential for leaves to grow on some branches very high up.”
Standard Services Group
“Mike was very responsive leading up to the yard clean up and landscaping day letting us know when they were planning on coming by and keeping us updated on material etc.”
Spartan Tree Care
“The gentleman who did the work were very knowledgeable, did a beautiful job, arrived exactly when they said they would and were very respectful of our property.”
Arbortec Tree Service
“On the day of the tree trimming, their team provided clear explanations of their approach before starting the work and reviewed everything again once completed.”
Tree Service Denver
“The professionalism and efficiency with which they handled the situation were remarkable, quickly resolving the issue while ensuring the safety of my property and family.”
A&R Tree and Landscaping LLC
“The first time I called around to get multiple quotes, and A&R was by far the best value - less than half the price of some other local options (ahem Swindle, I mean Swingle, I mean Sav A Tree).”
Why these companies made our list
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