"Working with James was great from the beginning. He put my mind at ease with his product knowledge and his creative designs."
Pools & Retreats · Oakville, GTA
Pool Landscaping in Oakville.
Astonia Landscaping designs and builds high-end residential landscapes and natural-stone masonry for homeowners in Oakville. Owner-led by a third-generation stonemason, the firm has worked across the GTA and Durham Region since 1975. Every project is owner-led, with daily communication from the first consultation through the last stone set in place.
- Since 1975
- 3 Generations
- $5M Insured
- WSIB Covered
- Design-Build
In Oakville
Landscaping that belongs in Oakville.
Oakville rewards patience. Many of its finest properties sit on generous, mature lots in Old Oakville and along the lakeshore, where established gardens, decades-old trees, and stone walls already give the land its character. Building well here means working with what is already there rather than clearing it away. We design around the trees worth keeping, match new masonry to the weight and tone the street already carries, and treat the existing garden as a starting point, not an obstacle. The result should look like it has always belonged.
Homeowners in this part of Halton tend to be design-led, and they have usually lived with their property long enough to know exactly what is missing. They notice how a stone wall is coursed, how a step meets a path, how a terrace sits against the house. That kind of attention is the reason we work the way we do. As a third-generation stone family, we handle the natural-stone work and the design intent personally, and because Astonia owns its own equipment and runs its own crews, the property stays calm and orderly through a build that may run many months.
The lakeside setting brings real site considerations. Lots closer to the shore deal with grade changes, drainage, and mature root systems that all have to be read carefully before anything is built, and established neighbourhoods often mean tight access and close neighbours who would rather the work be carried out cleanly and quietly. Astonia is fully WSIB-covered and carries $5M in liability insurance, and we hold our hardscape work to a standard meant to last in this climate. The aim on every Oakville property is craft that settles into the place and looks better with age.
What we build
Pool Landscaping, start to finish.
Pool Surrounds
Coping & Decking
Poolside Lounges
Cabanas & Pavilions
Privacy Planting
Stone Walls & Steps
The craft
Built from the ground down.
A pool is the easy part. What makes a backyard feel like a retreat is everything that surrounds it — the coping your feet meet stepping out of the water, the deck that stays cool and sure underfoot, the planting that closes the space off from the neighbours and the road. Astonia builds that whole surround. We work alongside your pool builder, or come in once the shell is set, and design the masonry and landscape that turn an installed pool into a place you actually want to spend the summer.
The stonework is where five decades of masonry show. Coping is cut and set so the edge is comfortable to sit on, true along its run, and pitched to shed water away from the pool rather than back into it. We lay the surrounding deck — natural flagstone, large-format porcelain, or premium interlock paving as the design calls for — over a properly built base so it sits flat and drains for the long term, not just the first season. Around a pool the small things matter most: slip underfoot, the transition from wet coping to dry deck, joints that hold against freeze and thaw. As a third-generation stone family, we hold those details to the standard the rest of the property is built to.
Beyond the water's edge we build the rest of the retreat — a sunken lounge or fire area set into the grade, a shaded cabana or pavilion for changing and shelter from the afternoon sun, low stone walls and steps that organise the levels, and the privacy planting that makes a backyard feel enclosed without feeling walled in. Layered evergreens, ornamental trees and perennial beds are chosen for your soil, sun and exposure, so the screen fills in and the planting reads as established rather than newly dropped. The result is a pool you arrive at through a designed landscape, not a rectangle of water on a bare lot.
Pool projects are disruptive by nature, so how the work is run matters as much as how it's built. Astonia is owner-led — the owner is on site and reachable day to day, not a name on a contract. We run our own small and heavy equipment, so excavation, grading and stone setting move on our schedule rather than waiting on a subcontractor's. The site stays clean and organised through what is, by nature, a disruptive build. Crews are WSIB-covered and the company carries $5M in liability insurance, so a major project on your property is handled the way it should be. We've built outdoor spaces across the GTA and Durham region since 1975, and a pool retreat is one of the most rewarding things we do.
How it works
From first handshake to final reveal.
01
Initial Consultation
We meet you on-site to walk the space, understand how you want to live in it, and talk through your vision and investment — no obligation.
02
Design & 3D Review
Our designer measures and plans your space, then renders it in 3D so you can see it before we break ground. We refine every detail together.
03
Breaking Ground
Our own crews and equipment start at 7:00 AM, keep the site clean every day, and brief you each morning and evening — no subcontractor gaps, no delays.
04
Project Completion
After a final walkthrough, the only thing left behind is your finished space — built to gather on for generations.
The Astonia difference
Why homeowners in Oakville choose us.
Owner-led
Daily communication from the owner, from the first handshake to the final reveal.
Our own equipment
Small and heavy machines, run by our own crews — no subcontractor delays.
Built to last
Overbuilt foundations and natural stone, meant to hold their line for generations.
$5M insured
Liability coverage above the industry average, for your peace of mind.
WSIB covered
A fully covered, professional crew on every project.
Design-build in-house
One team designs, builds and plants — no trades to chase.
Kind Words
Homeowners across the GTA, on the Astonia experience.
Five decades of referrals across the GTA & Durham. Read more on Google& Houzz.
"The natural stone work and landscape job that James and his crew did is beautiful, outstanding work. The quality is outstanding — we would recommend this company to anyone."
"Astonia was a delight from start to finish. The crew showed up early and worked long days to finish on time. We are now enjoying the most amazing front yard. Outstanding results!"
"As a repeat client, we selected Astonia to transform our simple backyard into a relaxing space amongst a natural setting that will bring us many years of pleasure."
Good to know
Pool Landscaping in Oakville, answered.
Our craft is the masonry and landscape that surround the pool — coping, decking, lounges, cabanas, walls, steps and privacy planting. We work alongside your pool installer, or step in once the shell and equipment are in, and build the retreat the pool sits within. If you're starting from a bare yard, we coordinate the surround and full landscape so it all reads as one design rather than separate trades.
We work to avoid that. Because we own our excavation and grading equipment and run our own crews, the site stays clean and organised throughout, with no waiting on outside crews to clear it. The owner runs the project directly and keeps you informed day to day, so you know what's happening on your property and when the space will be ready to use.
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.
Every project is different — from focused stonework to a full landscape transformation — so we provide a clear, detailed proposal after an on-site consultation rather than a generic price. Most of our work is a meaningful, lasting investment in your property.
Timelines depend on scope, and you receive 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 — starting at 7:00 AM and keeping the site clean every day.
Yes. We carry $5 million in liability insurance — above the industry average — and our crews are fully WSIB covered.
More services in Oakville
Pool Landscaping nearby
Pool Landscaping in Oakville, done right.
Book a free on-site consultation. We design, build and plant the whole space — one accountable crew from the first site walk to the last stone set.
$5M insured · WSIB-covered crews · 3rd-generation craftsmanship since 1975