Plant Health Care in Fairfax County, VA
Our team, led by Virginia’s first ATCP-Certified Professional Arborist (#5 in the U.S.), finds the cause, backs it with lab tests and builds a written plan that keeps your trees thriving.
Plant health care for homes, HOAs and businesses across Fairfax County
- Lab-tested, science-based plans
- Safe, targeted treatments, including organic options
- Honest Upfront Pricing
- Led by Virginia’s First ATCP-Certified Professional Arborist (#5 in the U.S.)
- ISA Certified Arborists, TRAQ and CTSP on Staff
- 24/7 Emergency Crews, Usually on the Way Within 15 Minutes
Our Testimonials
What Fairfax County Homeowners Say
Homeowners trust Grant Brothers Tree Service with their most valuable trees. We’re award-winning: Nextdoor Neighborhood Faves 2023, 2024 and 2025, a 2025 Top Local Workplace, BBB Accredited with an A+ rating, and rated 5.0 on Google with hundreds of 5-star reviews. Every job comes with honest, upfront pricing and our exclusive satisfaction guarantee.
Sick or Dying Tree?
Is My Tree Sick or Dying?
The most common signs of a sick or dying tree are dead branches at the top, leaves that come out late or small, and leaves that turn brown or drop in summer. Other warning signs are bark falling off over bare wood, mushrooms or shelf fungus on the trunk or roots, holes or sawdust in the bark, and a new lean with cracked soil at the base.
One sign alone doesn’t prove a tree is dying. Our certified arborists find the cause, and a sick tree can often be saved if we catch it early.
Signs to Look For
- Crown: dead branches at the top, thin or patchy leaves, and leaves that get smaller every year.
- Leaves: brown edges, yellow leaves with green veins, spots, curling, or leaves that drop in summer.
- Bark and trunk: bark falling off, cracks, cavities, oozing sap, small holes or sawdust.
- Base and roots: mushrooms or shelf fungus, no root flare showing, mulch piled on the trunk, or cracked, lifted soil.
Want to know what your trees need? Our certified arborists check every tree on your property, from roots to crown, and send samples to the lab when needed. You get a complete written report: what’s healthy, what’s at risk and what to do first. It’s the best first step for any tree that looks off.
Most tree problems start in the soil. We take samples around your trees, and the lab measures nutrients, pH and organic matter. You get the results and a clear fix.
Leaves show what a tree is missing. We collect leaf samples, and the lab measures the nutrients inside them, so we treat the real shortage instead of guessing.
Leaf spots, cankers, wilting or sudden dieback? We send samples to the lab to confirm the disease, so treatment hits the right problem the first time.
Your custom plan, in writing. It lists each tree, what it needs and when: organic soil care, deep-root feeding, air spading, pruning, or insect and disease treatment.
We offer integrated pest management (IPM): regular monitoring, smart tree care and precise treatments, used only where and when your trees need them. That includes spotted lanternfly control.
Year-round care, done for you. We visit through the seasons to monitor, test and treat, and send you a written update after every visit.
Our Plant Health Care Process
Three Simple Steps to Healthier Trees
The Plant Health Care Experts
Grant Brothers is home-grown in Fairfax County, with credentials most tree companies don’t have. We’re led by Virginia’s first ATCP-Certified Professional Arborist (#5 in the U.S.), a founding board member of the Association of Tree Care Professionals, and our team includes ISA Certified Arborists plus TRAQ-qualified and CTSP arborists. We’ve earned Nextdoor Neighborhood Faves in 2023, 2024 and 2025 and a 2025 Top Local Workplace award (Homebase), with 30+ years of combined experience and hundreds of 5-star reviews.
“The #1 mistake I see in Fairfax County yards is the mulch volcano: mulch piled up against the trunk. It keeps the bark wet, invites rot and insects, and can make roots circle and choke the tree. Next come trees planted too deep, and watering too much or too little. All three are easy to fix if we catch them early.”
Stefano Devigili, ISA Certified Arborist #MA-351702A, ATCP-Certified Professional Arborist
FAQ About Plant Health Care in Fairfax County
Here are the plant health care questions we hear most. Don’t see yours? Call us, and an arborist will answer.
Look at the top of the crown, the leaves, the bark and the base. Dead branches at the top, leaves that come out late or drop in summer, bark falling off, fungus at the base and cracked soil are common signs. Our free tree symptom checker shows possible causes, and an arborist can confirm it.
Often, yes, if the cause is found early. Drought stress, compacted soil, a buried root flare and mulch piled on the trunk can often be fixed. A tree with major decay at the base, or with most of its crown dead, may be safer to remove.
Yes. A tree doctor is an arborist who finds out what’s wrong with a tree and treats it. Our ISA Certified Arborists diagnose sick trees, with lab tests when needed, and give you a written treatment plan.
In Northern Virginia, bacterial leaf scorch is a common cause, but drought and root damage can look the same. Only a lab test confirms bacterial leaf scorch, so we test before we treat.
If your ash tree is healthy and valuable, yes: preventive treatment works best before the beetle attacks. Infested trees rarely recover, so we remove those safely.
Yes. It was confirmed in Virginia in 2021 and in Fairfax County in 2022. Look for dark bands between the leaf veins and distorted, leathery leaves, and have an arborist check any beech with a thinning crown.
Act fast if a big tree has a new lean, cracked or lifted soil at the base, an open split, or large dead limbs over a house, driveway or play area. Keep people away and call us 24/7. For a full written answer, our TRAQ-qualified arborists offer a professional tree risk assessment, quoted up front.
We offer a complimentary visual health assessment, and our estimates are free, including virtual estimates for work you already know you want. Our full Tree Health Assessment is a professional service: an in-depth look at all your trees, lab tests when needed and a complete written report. We quote it up front.
We quote every test and plan up front, before any work starts. The price depends on how many trees and samples you need.
It starts with a tree health assessment. When we need proof, we add soil tests, leaf analysis or a lab diagnosis. Then you get a written treatment plan and seasonal check-ins.
Once a year for most properties, and twice a year for large, valuable or stressed trees. Seasonal programs make it automatic.
Yes. Problems like compacted soil and borers start out of sight. A yearly check catches them early.
Guessing wastes money and can even hurt the tree. A lab test shows exactly what’s missing, so we add only what your trees need.
Yes. IPM combines regular monitoring, good tree care and precise treatments, so your trees get exactly what they need and nothing they don’t.
Safe, targeted, science-based treatments, including organic options. We choose the gentlest option that works for each tree and explain exactly what we’ll do before we start.
Our certified arborists inspect the tree from roots to crown, then confirm it with soil tests, leaf analysis or a lab sample. You get the diagnosis and the plan in writing.
Air spading uses high-pressure air to remove soil around roots without damaging them. It uncovers buried root flares and breaks up compacted soil so roots can breathe and grow.
Often, yes, if we catch it early. We loosen compacted soil, feed the roots and prune out dieback to give the tree its best chance to recover.
Yes. We monitor, trap and remove host trees like tree-of-heaven, and build a targeted control plan for your property. Which trees do they attack?
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