Load-Bearing Wall Removal in Mississauga

Typical kitchen-to-dining wall removal in semi-detached, 12-foot LVL beam, drywall repair both rooms, electrical relocation: $4,000–$7,500. Larger 18-foot opening with double LVL or steel beam, more rooms affected, HVAC reroute: $7,500–$12,000. Full open-concept main-floor renovation (multiple walls, beam network, full ceiling repair, electrical and plumbing relocations, finish work): $12,000–$25,000+. Coordinated with kitchen renovation: combined $35K–$80K vs. $50K–$110K if done separately.

Yes — every load-bearing wall removal in Mississauga requires a PEng structural engineer to (1) confirm the wall is load-bearing, (2) design the new beam (LVL, steel, microllam, glulam) and bearing posts, (3) stamp the permit drawings, and (4) attend the framing inspection. Mississauga Building will not issue a permit without engineer-stamped drawings. RenoHouse coordinates Glogowski Engineering, Cunningham Engineering, BGE Engineering, or your preferred PEng. Engineering fees: $1,200–$2,500 typical, included in project price. We do NOT design or stamp drawings ourselves — that is the engineer's role and licensure.

LVL (laminated veneer lumber) is the workhorse — handles 80% of Mississauga residential spans (10–18 feet, single-storey-above load), fits within standard ceiling cavity, $400–$1,200 in beam material. Steel I-beam (W-section, e.g., W8x21) becomes mandatory when span exceeds 18 feet, when point loads from above land on the beam mid-span, or when narrow profile is required for aesthetics. Steel costs $1,500–$4,500 in material plus welding, plus fireproofing if exposed below code-rated rating. Microllam (narrow LVL) for visible beams. Glulam for premium visible-beam aesthetics. Engineer specifies which based on load, span, and aesthetics.

Yes — every load-bearing wall removal requires a Mississauga Building permit. Permit drawings include the engineer-stamped beam design, bearing post details, electrical and plumbing relocations, and the structural calculations. Permit review 4–8 weeks typical. RenoHouse pulls the permit. Final inspection by Mississauga Building closes the permit. Doing wall removal without permit creates legal liability, makes the home difficult to insure, and complicates resale (home inspectors and appraisers flag unpermitted structural changes).

PEng engineering and permit drawings: 1–3 weeks. Permit review by Mississauga Building: 4–8 weeks. Construction (temporary shoring, demolition, beam install, drywall and finish): 1–2 weeks for typical kitchen-to-dining wall, 2–4 weeks for full open-concept multi-wall removal. Total project clock: 6–12 weeks contract-to-completion. Coordinated with kitchen renovation: clock extends to 8–16 weeks total but combined cost is dramatically lower than separate projects.

RenoHouse coordinates Master Electrician (ECRA/ESA-licensed partner) for outlet and switch relocations, lighting circuit reroute, ESA permit closure. Master Plumber for any plumbing relocations. HVAC tradesperson for ductwork reroute. Common in Mississauga open-concept projects: outlets in the wall are relocated to flanking walls or to floor outlets, light switches relocated to the perimeter, supply/return ducts rerouted through the open ceiling cavity above. All bundled into the project scope under one contract.

It depends on the beam profile and where it sits. For 80% of Mississauga residential projects, an LVL beam fits within the existing ceiling cavity (the joists span perpendicular to the wall) and the ceiling can be made fully flush after drywall finish — you wouldn't know a wall was ever there. When the beam is deeper than the ceiling cavity (longer spans needing double-LVL 14" depth or steel beams) the beam may need to project below the ceiling 4–8 inches; this can be wrapped in drywall as a clean architectural feature, or left exposed for industrial aesthetic. Engineer designs to flush-ceiling where structurally possible.

Strongly recommend — and dramatically cheaper. Combined kitchen + open-concept project: $35,000–$80,000 typical, vs. $50,000–$110,000 if done separately 12 months apart. Drywall, paint, and finish are already in scope for the kitchen reno; beam wrap and ceiling patching add minimal incremental cost. Electrical and plumbing relocations are coordinated with the kitchen rough-in. HVAC reroute is one trade visit. Permit and inspection visits are bundled. Most Mississauga open-concept projects are bundled with kitchen reno for this reason.

Three primary signals: (1) Joist direction — joists span perpendicular to load-bearing walls; if joists in the basement ceiling run perpendicular to the wall above, that wall is supporting them. (2) Wall stack — load-bearing walls typically stack vertically (basement post, main-floor wall, second-floor wall, roof above). (3) Common locations — exterior walls and central interior walls (often the wall between kitchen and dining room) are the typical load-bearing locations. A PEng structural engineer confirms before any cuts. Visual identification is a starting point — only the engineer can confirm load-bearing status.

Heritage Conservation District (HCD) homes — Cabbagetown, Wychwood, parts of the Annex, parts of the Beach — typically allow interior structural changes (load-bearing walls are not heritage features), but the HCD overlay may add review for work that affects interior architectural character (original wood mouldings, plaster ceilings, original room layouts in landmarked properties). RenoHouse navigates HCD review where applicable and coordinates with Heritage Mississauga. We have Cabbagetown, Riverdale, Annex, and Wychwood projects on file.