Tree, Shrub & Vegetation Marking For Preservations

Professional Tree Consulting Services in New Hampshire & Western Maine

At P.C. Hoag & Co., our arboricultural consultants provide expert, science-based guidance for property owners, municipalities, and organizations seeking to manage their trees and landscapes responsibly. As independent tree professionals, we offer unbiased opinions, detailed assessments, and clear recommendations grounded in over four decades of experience and backed by professional affiliations with the American Society of Consulting Arborists and the International Society of Arboriculture.

Our consulting services help clients address tree health issues, legal concerns, construction-related impacts, and long-term planning. Whether you’re dealing with hazardous trees, construction conflicts, or developing a planting strategy, we deliver comprehensive evaluations that prioritize safety, preservation, and ecological integrity.

Our Consulting Services

Landscape Rejuvenation Consulting (Removals Only)

Sometimes, the best way to bring a landscape back to life is by carefully removing trees that are overcrowded, declining, or invasive. We offer expert analysis and removal-only recommendations to support restoration efforts, trail clearing, and woodland access. Learn more about rejuvenation consulting »

Tree & Plant Health Assessment / Tree & Plant Inventory

Understanding the current condition of your trees and shrubs is the first step toward protecting them. Our consultants perform in-depth health assessments, pest and disease diagnoses, and full inventories with species, location, and condition data. Explore health assessments & inventory services »

Arboricultural Consulting

From construction site reviews and tree preservation plans to expert witness testimony and value appraisals, our arboricultural consultants support safe development and legal compliance while protecting key tree assets. See our arboricultural services in detail »

Horticultural Consulting

Our horticultural experts offer soil analysis, species recommendations, care plans, and plant health programs designed to help landscapes flourish. We blend deep plant knowledge with on-site evaluations to support long-term beauty and resilience. View our horticultural consulting approach »

Who We Work With

  • Homeowners and landowners
  • Landscape designers and architects
  • Developers and construction firms
  • Attorneys and insurance companies
  • Local, state, and federal agencies

Frequently Asked Questions

What’s the difference between tree care and tree consulting?

Tree care involves direct services like pruning or removal. Tree consulting involves evaluations, reports, and expert advice to help you make informed decisions about your trees and landscape—especially in complex or high-stakes situations.

Do your consultants perform the actual work?

No. As independent consultants, our role is to assess, advise, and create clear plans. If action is needed, we can refer you to our own certified crews or coordinate with your existing contractors.

Can you help with legal disputes or tree-related litigation?

Yes—we provide expert witness testimony, legal documentation, and unbiased assessments that are admissible in court or mediation.

What do your reports include?

Most reports include species identification, health ratings, risk levels, preservation recommendations, and if needed, appraised value or legal positioning. We tailor each report to the scope and goal of your project.

Request a Tree Consultation

If you’re facing a tree-related challenge or planning a new project, our consulting services provide clarity, strategy, and peace of mind. Contact us today to schedule an assessment or explore our tree care services if action is required.