Interlock Patios
Backyard patios, outdoor dining areas, seating spaces, fire-pit areas and patio extensions. ICPI-certified base, polymeric sand, edge restraint, built to last.
ICPI Certified · Unilock & Techo-Bloc Authorized
Unilock & Techo-Bloc Authorized · Est. 2013
Interlock Patios, Driveways, Walkways & Stonework in Hamilton, Burlington, Oakville, Milton & Nearby Areas
Across Hamilton, Burlington, Oakville & Milton. Seven Stones builds interlock patios, paver driveways, backyard patio spaces, stone walkways, front entrances, steps, retaining walls and outdoor hardscaping across Hamilton, Burlington, Oakville, Milton and nearby areas.
- Free interlock quotes, 24-hour response
- Serving Hamilton, Burlington, Oakville, Milton & nearby
- Patios, driveways, walkways & front entrances
- 12-inch base prep for Ontario clay subgrades
- Backyard paver patios & outdoor spaces
- Real project photos, not stock
Unilock & Techo-Bloc Authorized · Est. 2013
200+Local projects since 2013
12+ yrsHamilton-area experience
ICPICertified installer
UnilockAuthorized installer
Techo-BlocAuthorized installer
5-yrWorkmanship warranty
Recent Interlock & Stonework Projects
Real patios, driveways, walkways and walls we've built across Hamilton, Burlington, Oakville and the Halton corridor.
Like what you see? Let's talk about your project.
Free on-site quote, itemized written number within 3 business days.
Interlock & Stonework Services We Offer
From a small front walkway to a full backyard transformation, we design, build and stand behind every paver and stone we lay.
Backyard Paver Patios
Paver patios for outdoor living, BBQ areas, entertaining spaces, poolside areas and full backyard upgrades. Custom layouts with banded borders and mitred cuts.
Patio Stones & Pavers
Patio stone installation, paver layouts, walkways, borders and hardscape surfaces. Unilock, Techo-Bloc and natural stone options.
Interlock Driveways
Paver driveway installation with proper 12-inch base prep, edge restraint, polymeric sand, and curb-appeal upgrades. Driveway-rated pavers only.
Walkways & Front Entrances
Stone walkways, interlock walkways, front entrances, steps, side-yard paths and entrance upgrades. Tied into existing driveways for a unified look.
Retaining Walls & Stone Features
Retaining walls, garden walls, stone borders, raised beds, armour stone and hardscape features. Walls over 1 metre are engineered to OBC.
Looking for poured concrete instead? See our concrete driveways, patios & walkways page →
What Interlock & Stonework Typically Costs in 2026
Honest installed-price ranges for Hamilton, Burlington, Oakville and surrounding Halton-area projects. The number you actually pay depends on size, base depth, paver brand, access and design detail, we itemize every line so you can compare quotes apples-to-apples.
Mid-Range Interlock Patio
$24-$38per sq ft installed
Unilock or Techo-Bloc square-cut layout, 10-12" compacted base, geotextile separator, edge restraint, polymeric sand. Built for Halton clay subgrades.
Premium Paver Patio
$36-$55per sq ft installed
Large-format slabs (Beacon Hill, Richcliff, Industria), banded borders, mitred cuts, integrated seat walls or fire-pit features.
Interlock Driveway
$28-$45per sq ft installed
Driveway-rated Unilock or Techo-Bloc pavers over a 12" compacted base on Halton clay. Includes demo, geotextile, rigid edge restraint and polymeric sand.
Stone / Interlock Walkway
$3,200-$7,500typical project
Front entry walkway with paver or natural-stone field, banded border, integrated front-step landing. Width and length drive the final number.
Front Entrance Steps
$4,500-$9,000typical project
Paver-clad steps with bluestone or flagstone treads, paver-block raised garden walls, integrated landing, the curb-appeal anchor.
Retaining Wall
$45-$95per face foot
Segmental block (Pisa2, Mini-Creta, Allan Block) or armour stone. Walls over 1m are engineered to OBC with geogrid + drainage chimney.
Ready for a real number? Free on-site quote in 24 hours.
Free on-site quote, itemized written number within 3 business days.
Why ranges and not exact quotes? Two patios the same size can swing $5,000+ apart based on subgrade clay depth, paver series, banding pattern, access and grading work. Free on-site measurement and an itemized written number within 3 business days.
Interlock & Stonework Across Hamilton, Burlington, Oakville & Nearby Areas
Local crew, local service area. We handle the full scope from design through cleanup, not subcontracted.
Interlock in Hamilton
Backyard paver patios, interlock driveways, walkways and retaining walls for Hamilton-area homeowners across the lower city, mountain and west end.
Interlock in Burlington
Paver driveways, backyard patios, pool-surround pavers and front entrances for Roseland, Shoreacres, Millcroft, Tyandaga and Aldershot homes.
Interlock in Oakville
Premium Unilock and Techo-Bloc patios, paver driveways, walkways and pool surrounds for Glen Abbey, Joshua Creek, Bronte and lakefront properties.
Interlock in Waterdown
Paver driveways, backyard patios, walkways and stonework for Waterdown homeowners on Halton-Till clay subgrades.
Interlock in Ancaster
Backyard paver patios, walkways, retaining walls and stonework for Ancaster homes, built for escarpment-area subgrades.
Interlock in Dundas
Heritage-aware stonework, walkways, garden walls and patio installations for Dundas character homes plus modern paver projects.
Interlock in Milton
Backyard paver patios, walkways, driveway borders and stonework for Milton subdivisions and rural properties.
Why Homeowners Choose Seven Stones
If a paver project fails in Ontario, the answer is almost always under the pavers, not on top. Here's how we build for it.
- Proper base preparation. 10 to 12 inches of compacted 3/4-clear stone with a Mirafi geotextile separator on clay subgrades.
- Drainage & grading. Patios pitched to shed water away from the house, not toward it.
- Rigid edge restraint. Plastic edge with 10-inch spikes into compacted base, not a glued bead of mortar.
- Clean cuts & finishing. Wet-saw cuts at borders and curves; mitred corners on banded patios.
- Freeze-thaw durability. Polymeric sand activated correctly so joints don't wash out winter one.
- Local crew, local service area. Halton- and Hamilton-based since 2013, not a subbed-out operation.
- Real project photos. Every job documented; we'll show finished work in your neighbourhood.
- Free written quotes. Itemised so you can compare apples to apples, not a single lump sum.
- Licensed & insured. $5M general liability and full WSIB coverage.
- Workmanship warranty. 5-year written workmanship warranty on every interlock project.
- ICPI certified. Verified hardscape installer credentials, the only third-party install certification recognised in Canada.
- Unilock & Techo-Bloc authorized. Direct manufacturer support and warranty on every premium paver we install.
What Halton Homeowners Say
Reputation is the only marketing that actually compounds in this trade. Read full reviews and project photos on our public profiles below.
★★★★★
“ICPI base prep was the difference. Five winters in, our backyard Unilock patio still has dead-flat joints, no shifting, no weeds. Worth paying for the proper 12-inch base instead of the cheaper quote.”Backyard interlock patio, Burlington
★★★★★
“Front entrance, walkway, and a small retaining wall, tied together with one design. Crew was professional, brought sample boards on the quote visit, and the final invoice matched the written number. Zero surprises.”Front entrance & retaining wall, Oakville
Join the homeowners who trust Seven Stones.
Free on-site quote, itemized written number within 3 business days.
Read all reviews on Facebook · Instagram · or ask us for local references
Simple Quote & Installation Process
From first call to final walkthrough, here's how a typical interlock project goes.
- Request a quoteFill out the form or call. Send a few project photos if you have them.
- Share photos or project ideaWide shots of the area plus any inspiration photos help us scope accurately.
- On-site visit and measurementsWe measure, check subgrade and access, and walk through paver and design options.
- Material & layout recommendationUnilock or Techo-Bloc series, banding, borders, fire-pit features, we explain what fits.
- Base prep and installationExcavation, geotextile, compacted base in lifts, edge restraint, paver lay, polymeric sand.
- Cleanup and final walkthroughSite cleaned, walkthrough with you, written care instructions, before/after photos for our records.
Have questions? We answer everything below, or call us now.
Free on-site quote, itemized written number within 3 business days.
Interlock & Stonework FAQs
Quick answers to what homeowners ask before booking.
How much does an interlock patio cost?
In 2026, mid-range interlock patios in Hamilton, Burlington and Oakville run about $24-$38 per square foot installed, including a 10-12-inch compacted base, edge restraint, and polymeric sand. Premium Unilock or Techo-Bloc large-format slabs with banded borders sit higher.
Do you install interlock driveways?
Yes, paver driveway installation with 12-inch compacted base on Halton clay, Unilock or Techo-Bloc driveway-rated pavers, rigid edge restraint, and polymeric sand. ICPI-certified installs.
Do you build backyard paver patios?
Yes, paver patios for outdoor living, BBQ areas, entertaining spaces, fire-pit features, poolside, and full backyard upgrades. Custom layouts with banded borders, mitred cuts and integrated seat walls when called for.
Do you install front entrances and walkways?
Yes, stone walkways, interlock walkways, paver front entrances, steps, side-yard paths and entrance upgrades. We design them to integrate with existing driveways and porches.
Is interlock good for Ontario winters?
Yes, better than concrete in many cases. Pavers flex with frost heave, and damaged units can be lifted and reset. Key is a 10-12-inch compacted base on Halton-area clay and proper edge restraint. Built right, an interlock patio lasts 25+ winters.
Do you install retaining walls?
Yes, segmental block walls (Unilock Pisa2, Techo-Bloc Mini-Creta, Allan Block), armour stone, and natural stone walls. Walls over 1 metre are engineered to Ontario Building Code with full geogrid reinforcement and drainage chimneys.
What areas do you serve?
Hamilton, Burlington, Oakville, Waterdown, Ancaster, Dundas, Stoney Creek, Milton and surrounding Halton and Hamilton-area neighbourhoods.
Can I send photos before booking a quote?
Yes, there's an optional photo upload on the form. Send wide shots plus close-ups of any problem spots and we'll scope the project before the on-site visit.
Do you charge for the on-site interlock quote?
No. Every on-site interlock or stonework quote is free with no obligation. We measure, check subgrade and access, and walk you through Unilock and Techo-Bloc options on the spot. Written itemized quote follows within 3 business days.
How soon can you start an interlock project?
Peak hardscape season (May-August) typically books 6-10 weeks out across Hamilton, Burlington, and Oakville. Front walkways and small entrances can sometimes slot in within 3 weeks. Fall installs (September-October) are faster to book and a great time to lock in pricing.
Do you remove the existing patio, driveway or sod before installing?
Yes. Demo and disposal of the old surface (sod, asphalt, concrete, or old pavers) are line items on every quote. The base is then excavated to 10-12 inches, geotextile is laid, and a fresh compacted granular base is built before any pavers go down.
Do you require a deposit on an interlock job?
Yes, a deposit secures your install date and covers Unilock or Techo-Bloc material orders, which often have lead times of 1-3 weeks. Balance is split between mid-project and final walkthrough. All terms are written on the quote.
What is your interlock workmanship warranty?
Five-year written workmanship warranty on every interlock project covering settlement, edge failure, joint loss and base-related issues. Manufacturer warranty on Unilock and Techo-Bloc pavers themselves runs separately (typically lifetime transferable on the structural unit).
Can I see Unilock or Techo-Bloc samples before I commit?
Yes, we bring sample boards to every on-site visit so you can see Unilock series like Beacon Hill, Richcliff and Series 3000, plus Techo-Bloc lines like Blu, Aberdeen and Industria, against your home's brick and trim. Picking the paver in person beats picking from a photo every time.
Ready to Plan Your Interlock Project?
Send us your project details and we'll help you plan the right patio, driveway, walkway, front entrance or stonework project, with a clear written quote, not a lump-sum guess.