Home - STS Arborists

Safer • Healthier • Superior Trees

Certified Arborists delivering safe removals, precise pruning, expert planting, and long-term tree preservation across Southwest Pennsylvania.

When it comes to caring for your trees, experience and reliability matter.

At STS Arborists, we combine industry-certified expertise with a commitment to safety, service, and your property’s long-term health. From hazardous removals to planting the next generation, we’re here to protect, restore, and renew your landscape.

Why Choose STS Arborists

Tree care done with precision, not shortcuts

While plenty of tree companies are out there, STS Arborists sets the standard with proven training, dedicated care, and true professionalism.

Certified & Insured
Every project is backed by licensed, insured crews and ISA Certified Arborists who know how to balance safety with science.
Local & Community-Focused
We live here, we work here, and we’re proud to keep Pennsylvania’s trees healthy and communities safe.
Skilled & Safe Crews
Our team is trained in the latest rigging, pruning, and removal techniques, minimizing property impact while ensuring thorough cleanup.
Customer-Centered Service
Clear estimates, respectful crews, and a promise to stand by our work.

With STS Arborists, you get peace of mind knowing your trees — and your property — are in good hands.

Our Services

Comprehensive Tree Care Services for Every Property Need

From the smallest pruning job to the largest removal, our services are designed to meet both urgent safety concerns and long-term tree health goals. Explore our full range of professional tree care solutions:

Tree Removal

Safe, controlled removals for hazardous, dead, or unwanted trees. We use specialized equipment and techniques to protect your home, lawn, and structures.

Tree Pruning & Trimming

Improve tree structure, encourage healthy growth, and prevent future hazards with expert pruning tailored to each species.

Stump Grinding

Eliminate unsightly stumps and reclaim your yard with thorough grinding down to below-ground level.

Pest & Disease Management

From beech scale mites to invasive pests, our arborists diagnose and treat tree health problems using advanced, targeted treatments.

Tree Planting & Establishment

Invest in the future of your landscape with professional planting, complete with watering systems, fencing, and a one-year warranty.

Consultations & Risk Assessments

Unsure about a tree’s safety or health? Our certified arborists provide expert evaluations and honest recommendations.

Testimonials

We take pride in delivering reliable, high-quality tree care. Hear from our satisfied clients who’ve seen the STS difference firsthand.

Adam Yates

Took down one tree and pruned/cabled another. Great service and very knowledgeable. Tim is great!

Cheryl Tennant

STS Arborist crew arrived as expected on the scheduled work day. Completed the planned scope of work in one day. This included a detailed pruning of a large oak tree that required climbing and working within the tree canopy. Nathan worked diligently to complete the pruning safely. Scope also included removal of two other large oak trees. The crew was well equipped and trained to do the work safely. They worked well together and were supportive of the overall effort. They were also responsive to our questions about the process. They neatly cut and stacked the firewood we requested and cleaned up the work area at the end of the job. We were very satisfied with the work that was performed.

Frank W

Very professional from start to finish. The weather was not cooperative at all. No complains, went about as if it were a sunny 70 degree day. Did a super cleanup job. Will have them back in the spring for other trees. I can't recommend them enough. Definitely 5 stars.

Mildred Klee

Very responsive and do great work; thank you!

Paul Prettiman

A job well done,I was pleased with how quickly and thoroughly the job was completed!

Froggy Stilly

Tim came to give an estimate. He was very knowledgeable about pruning our pear trees. He was very thorough and gave us numerous opportunities to ask questions. Scheduling work for early 2026.

Carla McClintock

STS Arborists was great to work with from start to finish. Tim Shawley actually touched our trees as he assessed their health. I likened it to what I do as a medical provider. He explained some simple things we could take care of and what the plan would be to make the trees happy and healthy. Andrea, in the office, was very helpful and friendly. The tree crew was polite and efficient. They worked well together and had a quiet communication system. I was impressed with their safety awareness and thorough clean-up. We will definitely be using them again and have already recommended them to all our neighbors.

Michael Fapore

Good job!

Donna Biker girl

I had 8 mature locust trees trimmed and the dead removed from them. The guys did a great job and cleaned up and took all of the debris.

Shawn Kissell

Professional and safe. 18 trees over two days and couldn't be more happy. Excellent service and easy to work with.

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Service Area

Dedicated to Pennsylvania’s Trees & Communities

STS Arborists is based in Pennsylvania and serves homeowners, businesses, and municipalities across multiple counties. Our primary service areas include:

Not sure if we serve your area? Call us at (814) 233-4088 and we’ll be happy to confirm.

FAQ

Are you insured?

Yes. We’re fully licensed and insured, and our crews are trained to meet the highest safety standards.

Do you handle emergency services?

Absolutely. Storm damage and hazardous trees can’t wait — we provide prompt emergency response to protect your property.

How much does tree work cost?

Every tree and situation is different. That’s why we provide free estimates and clear, detailed proposals so you know exactly what to expect.

What Happens To The Wood And Debris?

We offer flexible cleanup options. Whether you want the wood hauled away, left for firewood, or chipped into mulch, we’ll tailor the service to your needs.

Ready to Protect
Your Trees?

Don’t wait until a tree becomes a hazard. Whether you need preventive care, safe removal, or expert planting, STS Arborists is here to help.