Curved sawn-granite steps sweeping into a circular fan-pattern paver terrace, beside a split-face block retaining wall, with clipped hedging and autumn grasses behind.

Stone that stays put.

Patios, walls and walkways built on a base that survives an Ontario winter. Milton, Oakville and Burlington.

Frost heave is what breaks hardscape in this climate. Not the stone — the ground under it.

Nobody admires a base. Everybody stands on one.

The stone is the part you see and the least likely thing to fail. What fails is the ground under it, and the water that was never given anywhere to go.

The base is the build

Six to ten inches of compacted granular for pedestrian work in this climate, deeper under a driveway. It is the least visible line on a quote and the one that decides whether the patio is flat in ten years.

Water decides

Where the water goes determines whether a job is a patio, or a patio plus a drain plus a wall. We find the low point before we price the stone.

A range, then a price

A form can give you an honest range. A price needs someone standing in your yard, measuring the gate and probing what the old surface sits on.

A worker in green work trousers, bent forward, lowering a long grey concrete paving slab onto a bedding layer beside an already-laid course.
Setting a slab onto the bedding layer.
A worker in a dust-covered jacket, safety glasses and ear plugs, making a cut with a handheld saw, dust hanging in the air.
Cutting to the line. Eyes and ears on, every time.

The ground decides everything.

Drag to see the same corner of the same garden before and after. The fence, the planting and the light are unchanged — only the ground is different.

A shaded garden corner with a patchy, worn lawn and areas of bare soil, enclosed by a metal fence and dense flowering climbers. The same garden corner with a circular tumbled-cobble patio laid in a radial fan, a lit steel fire bowl at its centre and three cast-concrete boulder seats around it. Before After

Radial cobble on a compacted base, a low brick edge to hold the circle, and the beds left undisturbed. Illustration only: both frames come from a single licensed photograph — the “before” state was produced by editing that same image, not photographed on site.

Stone, cut once and set for good.

Five recent builds. Scroll to move along the row — the page scrollbar is never intercepted.

  1. A coursed split-face granite retaining wall about four courses high with a flat sawn cap slab along the top, planted with low perennials along its base.
    01

    Seating wall

    Coursed split-face granite under a sawn cap. The bed at its foot is planted out so the wall stops reading as a wall.

  2. Rough-hewn limestone steps climbing between dry-laid limestone retaining walls, with purple salvia spires, white coneflowers and tall grasses spilling over the left edge.
    02

    Limestone stair

    Rough-hewn treads between dry-laid walls, with the border planted right up to the stone.

  3. A circular tumbled-cobble patio laid in a radial fan pattern, with a lit steel fire bowl at its centre and four cast-concrete boulder-form chairs around it.
    03

    Fire circle

    A radial cobble fan with a steel bowl at the centre. Low brick edging holds the circle against the bed.

  4. A kidney-shaped in-ground pool with irregular flagstone coping, a flagstone patio carrying chairs and a fire bowl, and a dry-laid fieldstone seating wall running across the foreground.
    04

    Pool surround

    Flagstone coping and a dry-laid fieldstone seating wall. The pool was already there; everything stone around it was not.

  5. A broad curved drive in dark grey pavers laid in sweeping curved courses, edged by a dry-laid stone kerb, with lavender-blue perennials and grasses along the left.
    05

    Curved drive

    Sweeping courses held by a dry-laid kerb. A curve costs more than a straight run because every course has to be cut to it.

01 / 05

What it costs, before you ask.

Published GTA rates for 2025–2026, shown as bands because that is what they honestly are. Small jobs sit at the top of a band: delivery, mobilisation and cleanup do not shrink with the square footage.

Interlock patio

Concrete pavers on a compacted granular base. The common backyard is 200–300 sq ft; the lower end of the band assumes 500 sq ft or more and a machine that can actually reach the work.

$18–35per sq ft, installed

Natural flagstone

Limestone or flagstone, irregular or sawn. Material alone runs $15–30 of it. Thick irregular stone, mortar-set work and awkward access push past the top of this band.

$25–45per sq ft, installed

Walkway & front entrance

Three to four feet wide is standard. A front walk is often 60–150 sq ft, which is small enough that it prices near the top of the band.

$15–30per sq ft, installed

Interlock driveway

Dearer than a patio for two structural reasons: 80 mm pavers instead of 50 mm, and excavation to twelve inches or more instead of six to eight. A two-car drive is roughly 400 sq ft.

$20–35per sq ft, installed

Block retaining wall

Priced on the exposed face — height times length, not footprint. Drainage behind the wall is not optional and is not free.

$40–100per sq ft of wall face

Armour stone wall

Natural quarried block. Heavier stone, machine placement, and a wider spread because a single stone can vary more in cost than a pallet of block.

$45–150per sq ft of wall face

The least intuitive fact in hardscape pricing: cost per linear foot roughly triples between a two-foot wall and a four-foot wall. Past about three feet the wall stops being stacked block and starts being engineering — geogrid, deeper base, and in many municipalities a permit.

STONECROP

Dry-laid stone. Cut once, set level, left to weather.

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Three steps, and only one of them is a form.

01

An estimate range, online

Six questions, about ninety seconds. You get a band and the reasons it is as wide as it is. Nobody phones you to unlock a number.

02

A site visit, then a written price

We walk the grade, measure the gate and the route from the street, and probe what the existing surface sits on. In Ontario any renovation contract over $50 has to be in writing — scope, materials, warranty, schedule, payment terms and who cleans up.

03

Build

A typical interlock job is on site three to seven days, weather permitting. Anything found mid-dig becomes a signed change order before it becomes a cost.

Estimate range

Answer six questions and you will get a range, not a price. A range is the honest output of a form. A price needs someone standing in your yard.

Step 1 of 4 — the work

What are you building?

Choose everything that applies. You can pick more than one.

Get the ground right the first time.

A range from the form, a price from the yard. That is the whole process.

See an estimate range
Run a landscaping or hardscape business?

The customer sizes up their own patio, wall or walkway and a real range lands in their inbox — you wake up to qualified jobs, not tire-kickers. Same engine, whether it’s landscaping or a full reno.

This is The Quote Forge by Glass Floor Studio · $5,800 flat.