Interlock Installation
Interlock Installation in Ottawa, Stittsville, Kemptville & Orleans
Patios, driveways, walkways and pads — built on a base that lasts
Patios, driveways, walkways and pads — built on a base that lasts
Interlock is the core of what we do. New installations, lift and relay on settled or heaved stone, repairs, re-sanding and sealing — all of it handled by the same owner-involved crew from excavation through to the final joint sand.
Most interlock failures in the Ottawa area are not a product problem. They are a base problem. Stone that sinks, rocks underfoot or grows weeds through the joints almost always traces back to insufficient excavation, the wrong granular, or a base that was never properly compacted in lifts. We build the base to handle Eastern Ontario freeze-thaw cycles first, then lay the stone.
We work with Techo Bloc and Oaks as our preferred suppliers, and we will install whatever product line you prefer if you have already picked something out.
Our Work
Recent interlock installation projects
What's Included
Everything we handle under interlock installation
New interlock installation
Full excavation, granular base, bedding layer, laying, cutting, edge restraint and polymeric joint sand. Patios, driveways, walkways, pads and landings.
Lift and relay
Existing stone is carefully lifted and set aside, the failed base is rebuilt and recompacted, and your original stone goes back down level. A fraction of the cost of new, and it reuses stone you already paid for.
Driveway extensions
Widen a narrow driveway for a second vehicle or add a parking pad. Typically a one-day job, tied in so the extension reads as part of the original.
Repairs and settling
Localised sinking, heaved sections, tripping lips and failed edges rebuilt back to level without redoing the whole surface.
Re-sanding and sealing
Joint sand replaced with polymeric sand and the surface sealed to lock out weeds, deter ants and bring the colour back up.
Pressure washing
Deep clean of existing interlock before re-sanding or sealing, or as a standalone refresh.
Our Process
How the job actually runs
- 1
Free on-site estimate
We walk the area with you, take measurements, check drainage and access, and talk through product options. You get a written quote valid for 30 days.
- 2
Layout and excavation
The area is marked out and excavated to the depth the application needs — deeper for a driveway carrying vehicle loads than for a walkway.
- 3
Base build
Granular is placed and compacted in lifts rather than all at once, then screeded flat with the slope needed to move water away from your foundation.
- 4
Laying and cutting
Stone is laid to the chosen pattern, cuts are made on site for a tight fit against the house, steps and garden edges.
- 5
Edge restraint and joint sand
Edges are restrained so the perimeter cannot creep outward, then polymeric sand is swept in, compacted and activated.
- 6
Cleanup and walkthrough
Site is cleaned, waste is hauled to a proper disposal site, and we walk the finished job with you and sign the warranty.
Pricing
What interlock installation costs
Real ranges, not a “call for pricing” page. Where your project lands depends on site access, material selection, complexity, excavation and disposal. Every quote is free, written, and valid for 30 days.
| Service | Range |
|---|---|
| New interlock installation | $28–$35 / sq ft |
| Lift & relay | $12–$15 / sq ft |
| New interlock driveway | $32–$35 / sq ft |
| New interlock patio | $28–$35 / sq ft |
| New interlock walkway / pathway | $28–$30 / sq ft |
| Pad installation | $28–$35 / sq ft |
| Re-sanding & sealing | $3.50–$5.50 / sq ft |
| Small area repair | $300–$800 minimum |
Typical timeline
Anywhere from one day for a small walkway or driveway extension up to two weeks for a large multi-level installation. Most residential patios and driveways land in the three-to-seven-day range.
Deposit & payment
A 30–50% deposit secures your project and orders materials, with progress payments on larger jobs and the balance on completion. Cash, cheque, e-transfer and credit card accepted, and short-term financing is available.
3 Years
Workmanship warranty, in writing
Owner-Led
Adam on site from quote to walkthrough
Free
Estimates and consultations, always
Where We Work
Interlock Installation across the Ottawa area
We provide interlock installation throughout Ottawa and the surrounding communities. Pick your area to see what the work usually looks like locally.
Common Questions
Interlock Installation — questions we get asked
How long does interlock last?
Properly installed interlock over a correctly built base will last decades. The stone itself outlives the base, which is why we put the work into excavation and compaction. Joint sand needs topping up every several years, and sealing is optional maintenance.
Is lift and relay worth it, or should I start over?
If the stone is in good condition and you are happy with the look, lift and relay is usually the better value — you are paying to fix the base, not to buy stone twice. If the product is badly spalled, discontinued and unmatchable, or you want a different look, new is the way to go.
Can you install interlock over my existing asphalt or concrete?
We do not recommend it in most cases. Laying over a surface that is already cracking or holding water just transfers the problem upward. We would rather remove it and build a proper base.
When is the best time of year to install interlock?
Anywhere from spring thaw through late fall. We are closed December 1 to March 1, so booking in winter for an early-season start is a good way to get the date you want.
Also Available
One contractor for the rest of the exterior too
Most projects touch more than one trade. Because we cover the full exterior, the drainage, parging or lighting that turns up mid-project does not mean finding another contractor.
Steps & Stairs
Safe, solid front steps and landings that match your home
Retaining Walls
Walls up to 6 ft — engineered with the drainage that keeps them standing
Foundation Parging & Repair
Crack repair, waterproofing and a clean, uniform parge finish
Drainage & Grading
French drains, catch basins and regrading that move water away from the house
Pressure Washing
Houses, driveways, patios and full property washes
Brick & Stone Work
Repair, veneer, chimneys and pillars
Free Estimate
Get a free interlock installation estimate
Tell us what you need done and roughly where you are. We serve Ottawa, Stittsville, Kemptville, Orleans, Carleton Place and the surrounding areas — and we'll get back to you promptly.
Phone
613-413-1135Service Area
Ottawa, Stittsville, Kemptville, Orleans, Carleton Place & surrounding areas
Season
March through November. Winter is the best time to book for an early-season start.