Theoutdoorspaceyourfamilyneverwantstoleave.

We design and build across the GTA & Durham region — including Toronto, Etobicoke, Mississauga, Brampton, Oakville, Vaughan, Markham, Newmarket, Aurora, King City, Whitby, Oshawa, Bowmanville and the surrounding areas. If you're nearby and not sure, just ask.

Every project is different — from focused stonework to a full landscape transformation — so we don't quote a number until we understand your space and vision. After an on-site consultation we provide a clear, detailed proposal with no surprises. Most of our work is a meaningful, lasting investment in your property.

Timelines depend on scope, and you'll get a realistic one at the design-review stage — before we break ground. Because we own our equipment and run our own crews, we work efficiently: we start at 7:00 AM, keep the site clean every day, and brief you each morning and evening.

Yes. We carry $5 million in liability insurance — above the industry average — and our crews are fully WSIB covered. We're also a Unilock Authorized Contractor, so every project is backed by professional standards and warranty-grade materials.

We do. Our designer visits your home to measure and plan the space, then renders your project in 3D so you can see it brought to life before any work begins. We review it together and refine every detail until it's right.

No unsightly bins on your driveway — we haul everything away in our own trucks and leave a tidy site every single day. When the last stone is set, the only thing left behind is your finished space.

Astonia is led by James Dennison, a third-generation stonemason with five decades of craft behind him. You get the expertise of a large company with the warmth and accountability of a family business — owner-led communication from the first handshake to the final reveal.