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A Full Service Tree Care & Landscape Company

Serving The Lakes Region & White Mountain Areas of New Hampshire & parts of Western Maine.

Large Old Tree Specialists

Specializing in the Preservation, Care & Safety of large old trees in Residential, Municipal & Commercial Areas for over 40 years! Call 603-323-7217

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Tree Services based on Scientific Knowledge

Our company strives to provide our clients with services that are based on the most current scientific research available on the care of trees, shrubs and natural systems.

Certified NH Arborists offering Expert Advice

We attend Seminars and Workshops throughout the year, educating ourselves to provide our clients the best tree & landscape care with the utmost safety.

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Fostering sustainable landscapes & natural areas through peer reviewed scientific information.

Pete Hoag started P. C. Hoag & Co. Inc. after graduating college in 1976. He then had the unique opportunity to study under the “world renowned” tree biologist, Dr. Alex Shigo. Dr. Shigo was, at the time, working on tree decay research entitled ‘Compartmentalization of Decay in Trees’ which, to this day, is an integral part of understanding the tree’s defense system.

Over the next forty years, Pete and his wife, Gloria, integrated numerous company tree health procedures based on scientific research benefiting their clients’ trees and landscapes.

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Why Choose Us

We’ve spent over 40 years fostering sustainable landscapes and natural areas and educating clients and the public to the benefits of properly maintained landscapes.


We’re happy to answer any questions you have regarding the trees on your property. Fill out our form. We’ll respond as quickly as possible.


Our staff will design your landscape, plant your shrubs and provide guidance for long-term success. We’ll choose the right plants by considering soil characteristics, sun/shade patterns, wind exposure, disease susceptibility and aesthetics.

Our staff attends seminars and workshops throughout the year. They are also courteous, reliable and passionate about the work they do. They utilize a large inventory of company-owned equipment which means timely and efficient service for you.


Tree Care

We are experts about the needs of trees and trained and equipped to provide proper tree care in New Hampshire and Maine.


At P.C. Hoag and Co. Inc., our team includes highly knowledgeable arborist consultants, specializing in the science and management of trees.

Landscape Care

We have a vast level of experience designing and maintaining landscapes as well as planting a wide range of trees, plants, and shrubs of all sizes.


Latest News

Developing a Green Approach

We started our company over 40 years ago with the underlining mission to preserve and protect our greatest living assets: Our trees and Natural Areas. One of the greatest things I…

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When You Think about Planting, Think about the Environment

Bees, bats, butterflies, birds and beneficial insects all need our help. If you are thinking about planting this spring remember to think about our environment. Pollinators are in trouble. Many of them are mysteriously dying at…

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Sugar Maple Damage during Tapping

We all know the beginning of spring by the increase in maple sap buckets that adorn maple trees throughout the area. But did you know that collecting maple sap injures the…

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Frequently Asked Questions

What is an arborist?

An arborist is a certified and trained professional who specializes in improving and sustaining the health and appearance of individual trees and shrubs.

How does an Arborist differ from an ISA Certified Arborist?

ISA Certified Arborists are individuals who have achieved a level of knowledge in the art and science of tree care through at least three years of experience and have passed a comprehensive examination. They are also required to recertify every three years with a mandatory 30 hours of continuing education.

How often should I have my trees pruned?

Every three to five years is a good rule of thumb for tree pruning, but it depends on the tree. Storm events may also cause damage that should be addressed immediately. It’s a great idea to have our arborists evaluate your trees annually.

What do you do with trees/branches you remove from my yard?

When we prune or remove trees on your property, we will remove everything upon completion. We will recycle all trees, branches and plant material from your job. We also have our own chipper that allows us to mulch all branches on site.

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