Boulder's expert arborists. Ready from the Flatirons to the plains.

From removals to structural pruning to 2 a.m. storm calls, we cover the full range. An arborist helps keep Boulder's trees healthy through canyon winds that topple dense conifers and the rest of the Mountain West risk calendar. Expert arborists, on call around the clock.

Why Boulder

Why Boulder trees need a real arborist.

The Certified Arborist Tree Service brings expert arborists, consistent standards, and the insurance that matters to your property in Boulder, from a single removal near the foothills to a citywide cleanup after a spring storm.

Boulder sits where the plains meet the Front Range, and that seam shows up in the trees. Intense sun, cold winters, and wide daily temperature swings stress root systems already fighting alkaline clay that locks up iron before it ever reaches the leaves.

Add downslope canyon winds funneling off the foothills, heavy wet spring snow loading branches still in leaf, and late frosts that catch trees mid flush, and you get a risk calendar that's different from what crews plan around in most other regions. Knowing which species handle that pressure and which ones fail is the difference between a tree that gets managed and one that comes down on a roof.

Why Boulder trees fail

The risks to watch in Boulder right now.

These are some of the problems we check for on a Boulder site visit.

Mountain Pine Beetle

Ponderosa pine on Boulder's foothill edge and lodgepole higher in the county sit inside the beetle's range, and a fading crown or pitch tubes on the bark mean the tree is already compromised structurally, not just cosmetically.

Iron Chlorosis

Boulder's alkaline clay locks up iron before susceptible trees like silver maple can use it, turning leaves yellow between the veins and weakening the tree's defenses against everything else on this list.

Emerald Ash Borer

Confirmed along the Front Range, this beetle can kill a mature green ash in Boulder within a few seasons of the first canopy dieback, so early detection changes the outcome.

Canyon Wind Failure

Downslope winds funneling out of Boulder Canyon hit dense conifers like Colorado blue spruce hardest, snapping tops or toppling trees with root systems already shallow from clay soil.

Service area

Our Boulder service area.

Serving Boulder and Boulder County, from the plains to the foothills.

Areas we cover

Click an area to learn more about it.

Free estimate

Tree care in Boulder, one form away.

Tell us what is going on with your trees. An arborist serving Boulder calls you back, walks the property, and puts the price in writing before anything is scheduled.

Prefer to talk? (844) 835-8733

Get Your Free Estimate

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By tapping Request My Free Estimate, you agree to be contacted by phone, text, or email about your project. No spam, and we never sell or share your information.

What people are saying

Rated 4.9 stars across 140+ reviews.

Real reviews from real customers, straight from our Google Business Profile. Here's what people say once the crew has packed up and the yard is clean.

JB
★★★★★

March 11th, a brief but strong storm came through Goodlettsville and blew over two giant trees in my front yard; one which was being supported by a 3rd tree that was facing and threatening my house. It was an…

Julie Bangs●3 days ago
JM
★★★★★

From the time I inquired w this company about removing a tree that was strongly impacted from the major strong 80 mph winds on March 3, 2023, they provided us w exceptional service in every way . They were…

Jeanne Mason●3 weeks ago
MD
★★★★★

My family had a tree removal emergency! A large tree in our back yard was on fire and splitting down the middle. The fire department came out the night before to extinguish the fire, but when I woke up the…

Mysty Diehl●6 weeks ago
What we do

Tree care across Boulder, made easy.

Trees we know

The Boulder species list, and what to watch for.

Local soil, local weather, local pests. Each species here fails in its own way, and we plan around all of them.

Honeylocust

A Boulder street tree favorite for its light shade, and more tolerant of alkaline clay than most, though very high pH soil can still yellow its leaves.

Green Ash

Widely planted through older Boulder neighborhoods and now one of the region's top emerald ash borer targets, so early inspection matters more than reactive removal.

Norway Maple

Handles Boulder's clay better than most maples but its shallow root plate makes it vulnerable when heavy wet spring snow lands on a full canopy.

Colorado Blue Spruce

A Front Range icon, but its dense, wind catching form is exactly what downslope canyon winds are built to topple if the root zone is compromised.

Littleleaf Linden

A reliable shade tree in Boulder yards, though its fine root system struggles in the low organic matter typical of local clay soils.

Ponderosa Pine

Common on Boulder's foothill edge and the species most at risk from mountain pine beetle once a summer drought stresses its natural resin defenses.

Local expertise

Why an Expert Arborist Matters in Boulder

Boulder grows demanding trees on demanding ground. Alkaline clay, intense high altitude sun, and winds that drop straight out of the canyons put more stress on a tree here than in most flatland cities. A crew with a chainsaw treats the tree that already failed; an arborist reads the one about to fail.

An experienced arborist can walk your estimate. Cuts follow ANSI A300, risk assessments follow TRAQ methodology, and you get a plan before work begins.

Across Boulder County

Longmont, Lafayette, Louisville, Superior, Lyons, and Nederland each carry their own version of this region's pressure, from Lyons's canyon exposure to Nederland's mountain elevation.

Every community in our coverage list has its own page covering the species, soil, and storm exposure we plan around there.

Boulder FAQ

Local questions, local answers.

Don't see your question? Call us. Calls are answered by a real person, day or night.

Do I need a permit to remove a tree in Boulder?
Local rules vary by jurisdiction, lot, and whether the tree is protected. We confirm the requirements for your exact Boulder address and handle any permit or arborist report needed before work begins.
How fast can an arborist get to my property?
Most estimate visits happen within 24 hours, and storm emergencies get a crew on site the same day. We answer the phone around the clock.
What is stressing trees here right now?
The biggest regional factors are mountain pine beetle, iron chlorosis, and emerald ash borer, layered on top of canyon-wind failure of dense conifers like Colorado blue spruce.
Why do my trees look yellow even though I water them?
That is often iron chlorosis from Boulder's alkaline clay locking up iron in the soil. It is mainly a soil chemistry problem, often made worse by overwatering, and an arborist can confirm it and recommend the right correction.
What standards do your arborists follow?
Our crews are trained to ANSI A300 standards and risk assessments follow TRAQ methodology. An expert arborist conducts the estimate.
Are you insured?
Yes. We carry the insurance that matters, the kind that protects every inch of your property.
Take back your trees today

One expert arborist. Every tree on your property.

Free estimate. Twenty-four-hour response. No contracts. No commitments.

Or call (844) 835-8733, answered 24/7 by a human.