Before ordering a fence or retaining wall, confirm the boundary, proposed dimensions and applicable municipal rules. Agree on the work and payment responsibilities before construction, then compare quotes against the same written scope.
Official sources checked 13 October 2026. The examples below describe published rules; your municipality must confirm how they apply to your property.
Will my neighbour pay half?
Do not assume an automatic 50/50 split. Ontario’s Line Fences Act overview describes a process for certain disputes over a new boundary fence or repair/reconstruction of an existing one. Where the Act applies, fence-viewers can decide responsibility for the work and the fence description.
The province says this procedure cannot be used to force payment after one owner independently completes the new fence or the whole reconstruction/repair. Fence-viewers do not determine a disputed property boundary. A municipality can exempt all or part of its area from the Act and use a local cost-sharing by-law. Ask the municipal clerk which process applies before committing to the work. Having a fence-height by-law alone does not establish an exemption.
How high can my fence be?
Toronto: Municipal Code Chapter 447, Table 1 lists a 1.2 m limit for a front-yard fence within 2.4 m of a lot line along a public highway, excluding a public lane. A front-yard fence outside that zone is listed at 2.0 m. Many other residential fences are listed at 2.0 m, but the table has exceptions. Driveway visibility, pool enclosures, guards and the method of measuring height also matter. Check the applicable description rather than using one limit for every yard.
Mississauga: the current Fence By-law 0397-1978, sections 5–6, sets a general 2.0 m fence limit for residential/commercial land, subject to exceptions. In a front yard within 4.5 m of the nearest street line, section 6(2) limits solid fences to 1.0 m and open-construction fences to 1.5 m. Open construction has at least one-third open vertical area. Check the separate provisions for sight triangles, privacy screens, pools and approved site plans.
Does a retaining wall need a permit?
Height is one part of the decision. Toronto’s permit guidance identifies retaining walls over 1 m on or adjacent to public property, at building entrances, or on private property accessible to the public as requiring a building permit. It also describes private, non-public-access cases that may not require one.
Mississauga’s permit guidance lists retaining walls below 1 m among projects that do not need a building permit, while noting that zoning compliance still applies. Confirm the complete proposal with the building department. Ask whether design drawings, a qualified designer, drainage/grading approval or a guard are required; do not use a generic height formula as a structural design.
What should a comparable quote include?
Ask each contractor to identify:
- Fence length, height, material, finish, posts, gates and hardware.
- Wall length, exposed heights, material, excavation, base/footing and drainage scope.
- Removal, disposal, access constraints, utility-locate arrangements and restoration.
- Design, approvals, inspection responsibilities, taxes, exclusions, dates and warranty terms.
Request a dated, itemized proposal for your site. This guide has no verified 2026 installed-price dataset, so it does not provide a blanket cost-per-foot table.
Use the homeowner quote and review checklist. If the project also includes a deck, the existing deck-quote checklist covers additional questions; its municipal example is specific to that location.
Editorial planning guide by Home Renovation Reviews / LF Builders, prepared with AI assistance. It contains no first-hand customer review or documented project example. Source checks and general guidance do not replace property-specific approval or professional design.
