Tree Service in Denver, Colorado

The emerald ash borer (EAB) was confirmed in Boulder in 2013 and has since spread across the entire Front Range. Denver has an estimated 1.5 million ash trees — roughly 15% of all urban trees — and every untreated ash will die within 3–5 years of infestation. Dead ash trees become brittle and extremely dangerous, snapping without warning. Denver is spending $200M+ on removal and replacement.

Denver's notorious spring snowstorms (March–May) dump heavy, wet snow that clings to branches and leaves. A single storm can deposit 20–40 pounds per branch, snapping limbs and splitting trunks. The March 2003 storm dropped 31.8 inches and caused an estimated $100M in tree damage across the metro. Trees that still have leaves during early or late-season snow are most vulnerable.

While mountain pine beetle primarily devastates high-elevation forests, foothill communities in Jefferson County, Golden, and Evergreen have lost thousands of ponderosa and lodgepole pines. Dead standing pines become extreme fire hazards and fall risks. Front Range communities bordering national forest face ongoing beetle pressure during warm, dry winters.

Denver's Chinook (downslope) winds regularly gust 70–100+ mph along the Front Range, particularly in Boulder, Arvada, and Lakewood. These sudden, warm wind events topple trees, strip branches, and send debris across neighborhoods. Cottonwoods and Siberian elms — two of Denver's most common trees — are especially prone to wind failure due to brittle wood.

Denver's semi-arid climate (15 inches of annual precipitation) means most landscape trees rely on irrigation. During drought years with watering restrictions, trees weaken and become susceptible to disease, beetles, and structural failure. Colorado's rapid population growth has increased demand on water resources, making drought-adapted species selection more critical than ever.