
Custom patios, retaining walls, walkways, fire pits, and stone features built to last.
Extend your living space into the outdoors with custom masonry and hardscaping. We engineer structural stone retaining walls, paver patios, outdoor kitchens, fire pits, and flagstone paths built on deep compacted aggregate bases that resist frost heave and shifting for decades.

How we execute hardscaping for flawless long-term results.
Digging 8-12 inches down and compacting crushed stone base layers.
Setting concrete or natural stone pavers with precise laser-level accuracy.
Vibrating joint sand to lock blocks together and applying protective sealant.
Got specific questions regarding this service?
"Grady with Keystone made my job a priority. He had a busy schedule the upcoming weekend, but I really wanted a junk pile removed asap. He showed up at 10pm (with permission from myself and neighbors) and got the job done quickly (and quietly for that time of night!) He is reliable and trustworthy!"
Verified Client • Facebook Recommendation
"Fair price, great work, quick turnaround time. Grady at Keystone did a couple different projects for me prior to moving into our house, full brush clearing, cleaning out of mulch beds, landscape paper, new mulch, edging, stone, tree trimming, haul away, mowing and weed eating. All my new neighbors were very excited with the results as are we."
Verified Client • Facebook Recommendation
"They completely transformed our backyard with beautiful sod and stone pathways. Grady was professional, precise, and hardworking from start to finish."
Homeowner in Millersburg, PA
"Keystone Custom Landscaping improved our property beautifully. The rock installation and clean-up looks fresh, lush, and extremely well done. Highly recommended!"
Property Owner in New Buffalo, PA
"Our yard looks absolutely stunning. Grady's retaining wall and garden designs exceeded every expectation we had. Fair prices and dependable communication."
Homeowner in Fisherville, PA
"Grady with Keystone made my job a priority. He had a busy schedule the upcoming weekend, but I really wanted a junk pile removed asap. He showed up at 10pm (with permission from myself and neighbors) and got the job done quickly (and quietly for that time of night!) He is reliable and trustworthy!"
Verified Client • Facebook Recommendation
"Fair price, great work, quick turnaround time. Grady at Keystone did a couple different projects for me prior to moving into our house, full brush clearing, cleaning out of mulch beds, landscape paper, new mulch, edging, stone, tree trimming, haul away, mowing and weed eating. All my new neighbors were very excited with the results as are we."
Verified Client • Facebook Recommendation
"They completely transformed our backyard with beautiful sod and stone pathways. Grady was professional, precise, and hardworking from start to finish."
Homeowner in Millersburg, PA
"Keystone Custom Landscaping improved our property beautifully. The rock installation and clean-up looks fresh, lush, and extremely well done. Highly recommended!"
Property Owner in New Buffalo, PA
"Our yard looks absolutely stunning. Grady's retaining wall and garden designs exceeded every expectation we had. Fair prices and dependable communication."
Homeowner in Fisherville, PA
"Grady with Keystone made my job a priority. He had a busy schedule the upcoming weekend, but I really wanted a junk pile removed asap. He showed up at 10pm (with permission from myself and neighbors) and got the job done quickly (and quietly for that time of night!) He is reliable and trustworthy!"
Verified Client • Facebook Recommendation
"Fair price, great work, quick turnaround time. Grady at Keystone did a couple different projects for me prior to moving into our house, full brush clearing, cleaning out of mulch beds, landscape paper, new mulch, edging, stone, tree trimming, haul away, mowing and weed eating. All my new neighbors were very excited with the results as are we."
Verified Client • Facebook Recommendation
"They completely transformed our backyard with beautiful sod and stone pathways. Grady was professional, precise, and hardworking from start to finish."
Homeowner in Millersburg, PA
"Keystone Custom Landscaping improved our property beautifully. The rock installation and clean-up looks fresh, lush, and extremely well done. Highly recommended!"
Property Owner in New Buffalo, PA
"Our yard looks absolutely stunning. Grady's retaining wall and garden designs exceeded every expectation we had. Fair prices and dependable communication."
Homeowner in Fisherville, PA
Expert landscaping that brings your vision to life. Call or text owner Grady Stewart at 717-370-1030 for a free quote, or book a consultation online.