DRY-STACK STONE WALLSMORTARED STONE WALLSINTERLOCKING BLOCKRAISED PLANTERSSLOPED YARD WALLSCRACKED WALL REBUILDSSERVING ALL OF WHITBYDRY-STACK STONE WALLSMORTARED STONE WALLSINTERLOCKING BLOCKRAISED PLANTERSSLOPED YARD WALLSCRACKED WALL REBUILDSSERVING ALL OF WHITBY
The Setting Stone Company can build, repair or rebuild a retaining wall in Whitby, for homes from Brooklin down to Port Whitby.
Start with what the Town itself warns about. Its drainage page lists retaining walls, along with gardens and sheds, as a common mistake near property lines, because they can block drainage swales and cause flooding. It also recommends no changes within 60 cm of the line. So we look at where the water runs today before we talk about stone, block or height.
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The Town’s Corbett Creek study describes the lowland along the lake as mainly permeable silts, sands and gravels, with clayey silt commonly showing at the surface. That is regional, not a reading of your lot, so we dig and look. Gravel and perforated pipe go behind the wall, and the Concrete Masonry and Hardscapes Association (CMHA) sets its block wall minimum at 12 in. of free-draining aggregate and a 3 in. drain pipe. Fabric keeps topsoil out of the stone, and taller walls lean back.
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We take on four kinds of wall work in Whitby, the same range and the same crew as our wall work across Durham Region.
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The digging and the wall answer to different rules. Grade work falls under Site Alteration By-law 7425-18, and the Town’s site alteration page has a pre-screening questionnaire the Town uses to decide if your job needs a permit. The wall itself is a Building Code question. Under the Ontario Building Code, a wall over 1,000 mm in exposed height needs a permit as a designated structure when it sits next to public property, access to a building, or private property the public is admitted to. The Town’s building permits page does not mention retaining walls, and rules can change, so ask Building Services at building@whitby.ca what applies to yours.
Central Lake Ontario Conservation Authority (CLOCA) replaced its 2008 mapping in 2025. Fill or grade changes near a stream may need its permit first.
The Town won't issue a Site Alteration Permit here unless the Oak Ridges Moraine Conservation Plan's requirements are met. Zoning By-law 5581-05 also applies.
An owner among the district's 169 properties needs a Heritage Permit before any proposed work. Questions go to heritage@whitby.ca.
Infill By-law 8067-24 can require a Grading, Servicing and Drainage Permit, and the Town's guideline lists a retaining wall deposit among its items.
Every yard is different, so we skip the phone estimate. We come out, look at the slope and the water, and price what we see.
Book a free, no-obligation consultation. We reply within 1 business day and walk the yard with you, wet spots included.
We note swales, the distance to the line and any creek nearby, then explain which Town approvals may apply.
Your clear, itemized quote shows what each part of the job involves, and there is no obligation to go ahead.
Our own crew, no subcontractors, protects the property and builds the wall. We clean up and do a final walkthrough together.
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The Town recommends no changes within 60 cm of the property line, and its drainage and grading page says water must not pond on your land or a neighbour's. The neighbourhood's overall drainage pattern has to stay as designed. For drainage pattern questions, call the Town at 905-430-4307. We lay out the wall with all of that in mind.
The owner. Section 4.11 of Property Standards By-law 6874-14 requires owners to keep retaining walls in good repair and free of significant masonry cracks affecting stability, with handrails and guards where the Ontario Building Code calls for them. If yours has cracked, we can look at it and tell you whether it needs a repair or a rebuild.
Fence By-law 8228-25 measures fence height from the higher adjacent grade where the two sides differ. That matters when a wall lifts one side of the yard, because the ground you measure from sits at the top of the wall. We also build decks and fences, so we can plan the two together.
The water may have nowhere to go. The Town's Corbett Creek study says the water table is typically near surface in the watershed's northern half, where the ground below does not readily drain, and that silt and clay plains farther south shed snowmelt across the surface. That is regional, so we check your lot. CMHA says to direct water away from a wall whenever possible.
There is no honest number without seeing the yard. Height, length, stone or block, drainage and machine access set the cost, and a lot near Lynde Creek or on the moraine can add approvals of its own. We visit free of charge and send a clear, itemized quote, with no obligation. Winter is a good time for that visit, since our schedule fills in spring and summer.
A new wall can make room for a flagstone patio in the yard above it. Browse our local services here, and the same wall work nearby.
Tell us what the slope is doing. We reply within 1 business day, and the visit and itemized quote are free. (905) 922-6684.
Expert interlock, flagstone, driveways, retaining walls, decks, and fences across Courtice, Bowmanville, Newcastle, Oshawa, and Clarington.
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Highly recommend! Honest, reliable, and hardworking. Tim takes a lot of pride in his work and is a true perfectionist when it comes to making sure everything is done properly and looks great. You can tell he genuinely cares about the quality of his work and his customers. If you’re looking for someone dependable who does an amazing job, you won’t be disappointed!
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