How much does open-concept renovation cost in Mississauga?

With Zigma Group, open-concept renovation starts from $5,500, and most projects fall between $5,500 and $16,000. Prices are in Canadian dollars before HST, as of October 2026, and are confirmed after a site visit. The main factors are length of the wall and the span of the new beam; flush or dropped beam; and plumbing, ducts and wiring inside the wall.

How do I know if a wall is load-bearing?

Clues include walls running across the floor joists, walls near the centre of the house and walls with posts or beams below them. The only reliable answer comes from checking the structure, which we do before any design.

Do I need a permit to remove a load-bearing wall in Ontario?

Yes. It is a structural alteration and needs a building permit with engineered drawings.

Do you do open-concept renovation projects in Mississauga?

Yes. We work throughout Mississauga, including Port Credit, Lorne Park, Mineola, Streetsville, Erin Mills and Clarkson. Call +1 (647) 718-3913 to arrange a visit.

Who issues the permit for this work in Mississauga?

Where a permit is needed, it is issued by the City of Mississauga's building division. We prepare the drawings and handle the application and inspections.

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Open-Concept Renovation

Rooms · Mississauga

Open-Concept Renovation in Mississauga

Taking down the walls between kitchen, dining and living rooms changes how a house feels more than any finish. When those walls hold the house up, it has to be engineered. In Mississauga, the housing ranges from lakeside homes on large treed lots in Lorne Park and Mineola to 1970s to 1990s subdivisions further north.

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Main floor opened up during renovation, with new drywall going on — From our Cobblestone Drive renovation

Scope

What is included.

Checking which walls carry load
Structural engineer's beam and post design
Building permit and inspections
Temporary shoring and beam installation
Rerouting wiring, plumbing and ducts in the wall
Patching floors and ceilings so the join disappears

Cost

What it costs.

From $5,500

Most projects in Mississauga: $5,500 to $16,000

What moves the price

Length of the wall and the span of the new beam
Flush or dropped beam
Plumbing, ducts and wiring inside the wall

Prices are in Canadian dollars before HST, as of October 2026. Every project is confirmed with a written quote after a site visit.

Local knowledge

Open-Concept Renovation in Mississauga.

Homes like these
Homes of this era have workable layouts but dated cabinetry, tile and fixtures, and often a wall between kitchen and family room that can come out.
Housing
In Mississauga, the housing ranges from lakeside homes on large treed lots in Lorne Park and Mineola to 1970s to 1990s subdivisions further north.
Permits
Building permits in Mississauga are issued by the City of Mississauga's building division. We prepare the drawings, submit the application and book the inspections.
Areas we cover
We work throughout Mississauga, including Port Credit, Lorne Park, Mineola, Streetsville, Erin Mills and Clarkson.
Lakeside lots
South Mississauga's large lots often allow substantial additions or a full rebuild, with tree protection rules to plan around.
Heritage areas
Old Port Credit Village and Meadowvale Village are heritage conservation districts with their own approval step.

Before you start

What to know.

Load-bearing walls
A load-bearing wall can be removed, but it is replaced by a beam sized by an engineer, with posts and footings carrying the load to the foundation. This needs a building permit.
What is inside the wall
Walls often hide plumbing stacks, heating ducts and wiring. Finding a new route for them is frequently the real work.
The floor underneath
When a wall comes out there is a gap in the flooring. Matching or replacing the floor across the new room should be part of the plan.

How we work

One team for every stage.

AssessWe survey the house as it stands.
Design and permitsDrawings and approvals before work starts.
Strip-outWhat is worn out comes off.
RebuildStructure, wiring, plumbing and walls.
FinishesCabinetry, tile, floors and paint.
HandoverWalkthrough and documents.

Questions

Open-Concept Renovation in Mississauga: the short answers.

How much does open-concept renovation cost in Mississauga?: With Zigma Group, open-concept renovation starts from $5,500, and most projects fall between $5,500 and $16,000. Prices are in Canadian dollars before HST, as of October 2026, and are confirmed after a site visit. The main factors are length of the wall and the span of the new beam; flush or dropped beam; and plumbing, ducts and wiring inside the wall.
How do I know if a wall is load-bearing?: Clues include walls running across the floor joists, walls near the centre of the house and walls with posts or beams below them. The only reliable answer comes from checking the structure, which we do before any design.
Do I need a permit to remove a load-bearing wall in Ontario?: Yes. It is a structural alteration and needs a building permit with engineered drawings.
Do you do open-concept renovation projects in Mississauga?: Yes. We work throughout Mississauga, including Port Credit, Lorne Park, Mineola, Streetsville, Erin Mills and Clarkson. Call +1 (647) 718-3913 to arrange a visit.
Who issues the permit for this work in Mississauga?: Where a permit is needed, it is issued by the City of Mississauga's building division. We prepare the drawings and handle the application and inspections.