Custom Outdoor Spaces Built to Last
Custom-designed for your home. Built right the first time. Trusted across Maryland homeowners.
Locally owned & operated
✔ 5-Star Rated by Maryland Homeowners
✔ Free Estimates | No Pressure
Trusted by Homeowners Across Maryland
⭐ Rated 5.0 from satisfied customers
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We had such a great experience with Ronald. They did a fantastic job on the project. Our backyard turned out beautiful, and exactly how I wanted. It was a complex project and Ronald definitely helped talk us through all the details to make it nice. He was also so incredibly kind! I would definitely recommend Firmstone.
– Nicole Tensmeyer., Howard County, MD
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We had some issues with drainage around the bottom of our house. Firmstone came and assessed the situation. They proposed repairs, and we agreed to move forward with them. They came and performed the work in a competent and professional manor. We were pleased by the appearance of things when they finished.
–Piers., Frederick, MD
Our Services
From patios to full outdoor transformations,
built with precision and care.
Outdoor Living
• Paver patios
• Decks & Pergolas
• Fire pits
• Custom features
Functional Builds
• Walkways
• Steps
• Retaining walls
• Lighting
Landscaping
• Planting & mulching
• Grading
• Trimming
• Lawn improvements
Roofing
• Installation
• Repairs
• Maintenance
• Protective Coatings
About Us
We specialize in high-quality outdoor transformations, built with precision, care, and attention to detail.
Over the years, FirmStone has built a reputation for quality, precision, and attention to detail. We work with both residential and commercial clients, delivering outdoor spaces that are built to last.
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From the initial consultation to the final walkthrough, we focus on a smooth, stress-free process.
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We listen carefully and help bring your ideas to life.
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Every project is handled with care, no matter the size.
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Our goal is simple: exceed expectations every time.
Just make the call — FirmStone works.
Why Homeowners Choose FirmStone?
Quality
Craftsmanship
Clear
Communication
Built to Last
Clean &
Respectful
On Time.
Every Time.
Built with precision, care, and attention to every detail.
You’re informed at every step — no surprises, no confusion.
We use high-quality materials and proven techniques for long-term durability.
We treat your home like our own and keep the job site clean throughout the project.
We show up when we say we will and deliver on schedule.