Swingle lawn care and tree service landscaping company was founded in 1947 by tree surgeon John Swingle. We remain a Colorado company, singularly focused on creating beautiful outdoor spaces year-round in Colorado's unique climate. We are owned by Coloradoans. We hire Coloradoans. Swingle employs more certified arborists than any other company in the region. Swingle's records for safety and customer retention are among the highest in the industry. We provide free quotes for lawn and tree care.