Keystone Tree Experts

Proudly serving our community since 1968

Keystone Tree Experts supplies horticultural expertise through a staff of very experienced certified arborists and technicians. Our customers, in turn, receive the peace of mind that comes from dealing with a knowledgeable, responsive company that has earned an impeccable reputation for fairness and honesty since 1968. So, if you’re looking for a long term relationship with a tree and shrub care company, look no further!

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Our Services

Keystone offers a wide array of services to residential and commercial clients, condominiums/HOA’s, landscape contractors, nurserymen and other arborists. We pride ourselves in educating others about problems that affect trees and shrubs. We routinely work with landscapers to help maintain properties, garden centers to help educate do-it-yourselfers and property owners who recognize the importance of maintaining their trees and shrubs.

Plant Health Care Programs

Yearly tree and shrub care maintenance plan provides seasonal monitoring, early detection, diagnosis and professional treatment.

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Insect and Disease Control

Seasonal monitoring and custom programs to suppress insects and diseases utilizing the latest practices of Plant Health Care (PHC).

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Fertilizing

Our fertilization program provides regular applications of essential nutrients to improve plant vigor while encouraging growth.

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Small Tree Pruning

Our pruning program removes dead wood, corrects weak branching habits and reduces wind resistance – all crucial for their continuing health and vigor.

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Consulting

Our certified arborists help with landscape installation, pre-construction tree protection or the planning, development and maintenance of your property.

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A Family Business

Bob and Lynne McMullin

Keystone Tree Experts is a family-run business built on generations of knowledge, trust, and a genuine commitment to the community. Founded by Bob McMullin in 1968 and now led alongside his daughter, Lynne McMullin, the company combines decades of experience with a personal, family-driven approach to caring for the trees and landscapes of Bucks County.

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Meet our ISA Certified Arborists

We Have “EXPERTS” In Our Name for a Reason!

MORE ABOUT THE TEAM

    
 
 
       Posted on Google  
    David Griffith 
 
 
 
 Trustindex verifies that the original source of the review is Google. Long time customer with lots of healthy  trees.
  
 
      Posted on Google  
    Richard Hansen 
 
 
 
 Trustindex verifies that the original source of the review is Google. Keystone employees are a professional Arborist Staff that are diligent in there work, courteous, and will discuss the best practices to maintain your gardens.
  
 
      Posted on Google  
    Berit C 
 
 
 
 Trustindex verifies that the original source of the review is Google. I trust Keystone Tree Experts to provide the best treatment and management of all the trees and shrubs on my property.

Even in an urgent situation after a major storm, the next business day Keystone addressed the damage to the dogwood on my property. They will provide practical and knowledgeable advice for the optimal outcome for the tree.
  
 
      Posted on Google  
    Susan Super 
 
 
 
 Trustindex verifies that the original source of the review is Google. Keystone Tree Experts have been our go-to tree care firm for 30+ years. Keystone is super responsive and knowledgeable. Their arborists are ISA certified, so you know they are truly experts. Our arborist, Herb Hickmont, always presents a range of options for any service and never pressures us to do more than necessary. Highly recommend Keystone Tree Experts!
  
 
      Posted on Google  
    Jeffrey Scharf 
 
 
 
 Trustindex verifies that the original source of the review is Google. excellent job, clean work, expertise appreciated.
  
 
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    chuck pitt 
 
 
 
 Trustindex verifies that the original source of the review is Google. On time and good work
  
 
      Posted on Google  
    Ginger Monte 
 
 
 
 Trustindex verifies that the original source of the review is Google. Great service - i have young trees, and with their annual fertilization, they are very healthy and growing quickly!
  
 
      Posted on Google  
    Marianne Vogel Bender 
 
 
 
 Trustindex verifies that the original source of the review is Google. Always on time and do a great job. Highly recommend them.
  
 
      Posted on Google  
    Erin F 
 
 
 
 Trustindex verifies that the original source of the review is Google. Always professional, informative and helpful. Joe is especially great!

Keystone Tree Experts