William Johnston & Co., Inc.

Phone: 610-664-3200


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Services for Trees:

 

Tree Pruning

 

Tree Removals

 

Cabling

 

Shrub Renovation

 

Emergency Storm Damage


Plant Health Care:

 

Spray Services: Insect and Disease Control

 

Fertilization Treatments and Soil Amendments

 

Plant Growth Regulator and Trunk Injections

 

Deer Repellant Treatments and Anti-desiccant Sprays


Evaluation Services:

 

Test Bore Evaluations

 

Hazardous Tree Evaluations

 

Root Crown Excavations


Contact us

 

Cabling of Trees

 

 

During the inspection of a tree, an arborist's job is to detect structural defects.  Among them is something called co-dominance.  This arises when two or more equally proportioned main stems grow from a single trunk and form an acute, v-shaped crotch area.  Over time, compressed bark will form a fissure which leads to a weak area of attachment.  These sites are potential areas for failure during wind and snow storms.  To reduce the risk of splitting, we install extra high strength steel cables in the crown of the tree.  This physical support system dramatically increases the stability of the tree.
 

 

 

Bartlett Tree Experts

William Johnston & Company is proud to be a division of Bartlett Tree Experts, and our staff now has the backing of an international tree-care company and tree research laboratory to help continue providing excellent tree service and shrub care in the Philadelphia and Main Line areas. View a complete list of professional tree services offered by Bartlett.