The best way to assure proper tree service is to hire a tree service company with International Society of Arboriculture (ISA) Certified Arborists on staff. Credentialed ISA Arborists exhibit demonstrable knowledge and skills for the proper care of trees. ISA Credential holders continue their education to advance the tree service capabilities of their companies and themselves. Ross Tree Company is proud of its two full-time ISA Certified Arborists on staff. The Tree Care Industry Association developed an American National Standard Institute (ANSI) standards for tree pruning. Rather than merely sawing off limbs, proper pruning is a mix of art and plant physiology. Below see specifications of the ANSI Tree Pruning Standard.

  • Mitigate Risk – Basic tree trimming reduces the chances of damage caused by falling limbs.
  • Manage Health – More advanced pruning improves tree structure and promotes healthy growth by removing dead or dying branches, diseased or infested branches, rubbing, weakened, or broken branches.
  • Improve Tree Structure – Pruning to a dominant leader mimics how trees grow in the forest – straight and strong.
  • Restoration Pruning – Restoration pruning redevelops tree structure and form after damage from storms or past substandard pruning.
  • Provide Clearance – Prune to prevent interference with property structures, sidewalks, street traffic, desired views, and other plants on a site. Clearance trimming also ensures safe utility clearance and meets city regulations.
  • Manage Size and Shape – Prune to reduce the size or maintain the desired shape according to tree species and location.
  • Regenerative Pruning – Regenerative pruning mimics the natural process of retrenchment by removing dead or weak branches, which reduces the risk of plant failure and stimulates new growth. The goal is to restore tree vitality and appearance.
  • Improve Aesthetics – Prune to improve the visual appearance of trees in an existing yard or landscape.
  • Manage Production – Trim trees to optimize the production of fruit, flowers, and timber.
  • Manage Wildlife Habitat – Pruning to improve wildlife habitats across a property, park, or right-of-way.

An ISA Certified Arborist adhering to the ANSI A300 pruning standard will not:

  • Leave branch stubs
  • Make unnecessary heading cuts
  • Cut off the branch collar
  • Stripping a branch from the inside leaving foliage just at the ends
  • Remove more than 25 percent of the foliage of a single branch
  • Remove more than 25 percent of the total tree foliage in a single year
  • Damage other parts of the tree during pruning
  • Use wound paint
  • Prune without a good reason
  • Climb the tree with climbing spikes

Working around large trees is hazardous. To reduce risk to its ground crews, climbers, and vehicles, Ross Tree Company embraces and follows the Arboricultural operations safety requirements as defined in ANSI Z133.

Professional Tree Pruning Service

In the winter, the entire tree’s architecture is clear to see, so it is easy to spot cracks, defects, and deadwood in leafless trees. Once inspected, one of the Ross Tree arborists give the ground crew a pruning prescription with specific cut instructions. Proper pruning encourages growth, strong tree structure, and improves the aesthetic appeal of a tree. Pruning at the right time and in the right way is critical since it is possible to kill or damage a tree by over-pruning.

Tree Pruning in Tight Spaces

Ross Tree Company is known across Denver for pruning trees in tight spaces. It takes specialized skills and equipment to complete difficult tree service jobs near a home, garage, and fence structures. If the work happens to be near a busy street, then a permit is required for a full or partial street closing. For over 30 years, Ross Tree is your go-to tree service company for jobs next to busy streets. We take care of the permitting process in a timely and cost-effective manner.

Ross Tree looks for ways to improve efficiency and worker safety, such as the Good Rigging Control System (GRCS). Sailors use self-tailing winches on yachts to maneuver massive boat rigging and sails. The GRCS allows us to reduce the number of men needed for a job, which lowers the cost to the consumer. Once secure, the technician cuts the branch or tree, then we use an innovative speed lining technique to move tree sections over roofs and fences to be shredded and loaded onto trucks.

If you have a pruning question or need a tree trimmed next to a home or a busy street. Call 303-871-9121 or click here to fill out a service request form.