Interlock and Hardscape Repair in Toronto and the GTA
Free assessments. Repairs from $500. Interlock, retaining walls, flagstone and stone steps across the GTA since 2005.
Royal Decks and Landscapes repairs interlock and hardscaping across Toronto and the GTA. We re-level sunken patios, walkways and driveways, replace cracked pavers, repair and rebuild retaining walls, reset loose flagstone and stone steps, and clean and seal interlock and natural stone. Repairs start at $500, and every job begins with a free assessment.
Most hardscape problems start underneath: a base that was too thin, poor drainage, or frost lifting the stones each winter. We find the cause first, so the repair lasts instead of sinking again next spring.
Signs Your Interlock or Hardscape Needs Repair
- Sunken or heaved pavers, or puddles that sit after rain
- Ruts where car tires sit on an interlock driveway
- Cracked, chipped or loose pavers
- Weeds and ants pushing sand out of the joints
- A retaining wall that leans, bulges or has stones falling out
- Loose, rocking flagstone or garden steps
Uneven pavers and loose steps are trip hazards, and a leaning wall only gets worse with each freeze and thaw.
Interlock Repair and Re-Levelling
When a patio, walkway or driveway sinks, we lift the pavers in the affected area, rebuild and compact the base, re-level the bedding, and lay the same stones back down. Ruts in an interlocking driveway are fixed the same way, with a base built for vehicle weight. Re-laying your original pavers keeps the colour matched to the rest of the surface.
Installing a new driveway instead? See our driveways page.
Cracked Pavers and Joint Sand
A broken paver can usually be replaced on its own, without disturbing the stones around it. When we fix a sunken area, we normally re-lay your existing pavers so the colour stays consistent, and broken ones are replaced with new pavers matched as closely as possible. We then refill the joints with polymeric sand, which hardens to lock the pavers together and keep weeds and ants out.
Retaining Wall Repair
We repair and rebuild all types of retaining walls: armour stone, segmental block, natural stone and timber. Most walls fail because water builds up behind them. A proper repair takes the leaning section down, fixes the base, adds clear stone and drainage behind the wall, and rebuilds it straight.
Rotting timber walls are often best replaced with stone or block. Taller walls can need an engineer’s design and a permit, and we check with your city before work starts. Planning a new wall? See our retaining walls page.
Flagstone and Stone Step Repair
Loose flagstone and rocking garden steps are reset on a firm, compacted base and re-pointed or re-sanded so they stay put. Cracked pieces are replaced with stone that matches as closely as possible.
For front porches and concrete entrance steps, see our concrete porch resurfacing page.
Interlock Cleaning and Sealing
We clean interlock and natural stone, including flagstone, to remove dirt, moss and stains, re-sand the joints, and apply a sealer that brings back the colour and helps resist stains. Sealing also helps the joint sand stay in place.
Repair or Rebuild?
If the problem is local, such as one sunken area, a few cracked pavers or one section of a wall, a repair is usually the better value. If the whole surface is sinking, or the base was never built properly, a full rebuild costs less over time. We tell you which one makes sense during the free assessment. For new patios and walkways, see our interlocking and paving page.
How Much Does Interlock and Hardscape Repair Cost?
Hardscape repairs start at $500. The final cost depends on the size of the area, how deep the base problem goes, whether stones need replacing, and access for equipment. Retaining wall rebuilds depend on the wall’s height, length and material. We price every job after a free assessment.
How It Works
- Send photos or book a visit. Photos of the problem area help us prepare.
- Free assessment. We find the cause: base, drainage or frost.
- Clear options and pricing. Repair, partial rebuild or full rebuild.
- Permits if needed, for example for taller retaining walls.
- Repair. Our own Royal Decks and Landscapes crew does the work.
Why Homeowners Choose Royal Decks and Landscapes
- Building and repairing outdoor spaces in the GTA since 2005
- 1-year workmanship warranty on repairs (warranty details)
- $5 million liability insurance and WSIB coverage
- Reviewed on Google and HomeStars (read our reviews)
- Showroom at 2A-521 North Service Rd E, Oakville
Where We Repair Interlock and Hardscaping
We repair interlock, retaining walls and stone across the GTA, including Toronto, Mississauga, Oakville, Burlington, Brampton, Milton, Etobicoke, North York and Richmond Hill.
Interlock and Hardscape Repair FAQ
How much does interlock repair cost?
Hardscape repairs start at $500. The price depends on the size of the area, how deep the base problem goes and whether stones need replacing. We price every job after a free assessment.
Why are my interlock pavers sinking?
Usually the base underneath was too thin, poorly compacted, or is washing out because water is not draining away. Frost then moves the stones each winter. Fixing the base is what stops it from happening again.
Can you re-level pavers without replacing them?
Yes. In most cases we lift the existing pavers, rebuild the base and re-lay the same stones, so the colour matches the rest of the surface.
Can you fix ruts in an interlock driveway?
Yes. We lift the pavers in the tire tracks, rebuild the base for vehicle weight and re-lay them.
Can a leaning retaining wall be repaired?
Often, yes. We take down the leaning section, fix the base, add drainage behind it and rebuild it straight. If the whole wall is failing, we will recommend a rebuild.
Do you repair timber retaining walls?
Yes, we repair all types: armour stone, block, natural stone and timber. A rotting timber wall is often best replaced with stone or block, which lasts much longer.
Should I seal my interlock?
Sealing brings back the colour, helps resist stains and helps the joint sand stay in place. We seal both interlock and natural stone such as flagstone. It is optional, and we will tell you whether it is worth it for your surface.
Is the assessment free?
Yes. We look at the problem, find the cause and give you repair and rebuild options with pricing. There is no obligation.
Book a Free Assessment
Send us a few photos of the problem area, or book a visit. We will tell you what is causing it, what it takes to fix, and what it costs. Call (905) 901-3560.
Request a Quote
