
Diadem installed a back interlock patio with new stairs, side walkway, submerged a side downspout, fixed existing patio stones near the front created a nice ramp/walkway, installed sod and created a garden between the patio and fence. Our

From stone-rich Old University and St. George's Park yards to newer Westminster Woods and Pineridge backyards, we design and install pools, hardscape and landscape across Guelph as one coordinated project.

Diadem installed a back interlock patio with new stairs, side walkway, submerged a side downspout, fixed existing patio stones near the front created a nice ramp/walkway, installed sod and created a garden between the patio and fence. Our

Deciding on who to work with for a significant pool and landscaping project is never without its risks. Will the project be completed on time and on budget? Will it exceed expectations? Will the process be smooth, and most importantly, fun?

Tom and his team replaced our retaining wall, or what was left of it ( very old! ). From the start we felt comfortable with Tom and his vision of the final product. His team was hard working all day and clearly have a great working
Why local matters
Every neighbourhood in Guelph brings its own grade, soil and access quirks. We've worked through all of them — so the quote you get is the one you pay.
Familiar with City of Guelph permits for decks, pool enclosures and engineered walls.
Experience working Guelph's natural stone and limestone aesthetic into design.
Comfortable working mature treed lots common in older Guelph neighbourhoods.
Local crews mean fast response and consistent on-site supervision.
Recent Guelph projects

Pool surrounded by natural stone coping and a quartzite patio that fits Guelph's character.

Hand-laid limestone wall to terrace a steep front yard on a mature treed lot.

Natural stone steps and a curved walkway leading to a restored century home.
Neighbourhoods we serve
Our Guelph promise
Clear start date, clear finish date — written into the contract.
No subcontracted patchwork. The crew that quotes is the crew that builds.
Standing behind every base, post and paver we install in your yard.
Real completed projects in Guelph we can point you to.
What we build in Guelph
Guelph FAQs
Yes — natural stone walls, coping and walkways are a regular part of our Guelph projects, often blending with existing limestone features.
We plan around root zones, restore disturbed areas, and use small-footprint machinery when access requires it.
Yes. Pool enclosures, engineered retaining walls and deck permits are all handled as part of the project.
Yes — every project starts with a design pass so you see materials, layout and finishes before we break ground.
Guelph homeowners
Free, no-obligation site survey anywhere in Guelph and surrounding areas.