Load-Bearing Wall Openings & Concrete Wall Cutting
Engineered Window Openings & Load-Bearing Wall Modifications
CanaCore coordinates verified contractors to cut engineered window openings and load-bearing wall modifications through concrete and masonry — sized precisely and carried by lintels or beams designed for the load, with CanaCore field supervision throughout. New doorways are handled on the Doorway Cutting page.
What Is Wall Opening Cutting?
Wall opening cutting creates precise openings in concrete, brick, or block walls for windows, load-bearing wall modifications, or pass-throughs. Using specialized diamond-blade saws, contractors cut clean, accurate openings without damaging surrounding structure, then install proper structural support. New doorways are handled on the Doorway Cutting page. This work requires structural engineering to design appropriate lintels or beams, dust control systems to minimize mess, and precision execution to ensure openings are square, plumb, and properly sized for new installations.
Minimal dust and vibration
Wall Opening Applications
Professional cutting services for every type of wall opening
Window Openings
Cut precise openings in concrete or masonry walls for new windows with proper lintel support.
Load-Bearing Modifications
Enlarge or reconfigure load-bearing concrete or masonry walls with engineered beam and lintel support.
Pass-Through Openings
Kitchen pass-throughs and service openings between rooms for improved flow.
Utility Penetrations
Cut openings for HVAC ducts, plumbing pipes, and electrical conduits.
Stairway Openings
Cut floor and ceiling openings for new stairways to basements or second floors.
Access Openings
Create access points for mechanical rooms, crawl spaces, and utility areas.
Our Step-by-Step Process
From engineering design to finished opening
Engineering Review
3-5 daysStructural engineer assesses wall and designs proper support system for the opening.
Permits & Approval
1-2 weeksSubmit engineered drawings to building department and secure required permits.
Site Protection
1 daySet up dust containment barriers, protect floors and furniture, prepare work area.
Temporary Support
1 dayInstall temporary bracing above cut area to support loads during cutting.
Precision Cutting
1-2 daysCut opening with wall saw or core drill. Remove cut material safely.
Structural Installation & Cleanup
1-2 daysInstall permanent beam or lintel, remove temporary supports, complete cleanup.
Specialized Equipment
Professional concrete cutting technology
Wall Saws
Precise concrete and masonry cutting
Core Drills
Circular opening creation
Temporary Supports
Load support during cutting
Dust Extraction
Minimal dust control systems
Structural Beams
Engineered support installation
Safety Equipment
Eye, respiratory, and hearing protection
Safety & Engineering Standards
Every opening designed by licensed structural engineers
Structural Safety
- Licensed engineer design required
- Proper temporary support systems
- Load-bearing capacity verified
- Permanent structural support installed
Safety Protocols
- Complete dust containment
- Proper PPE for all workers
- Safe material removal procedures
- Site secured during work
Quality Assurance
- Precision cutting tolerances
- Municipal inspection approval
- Clean, professional finish
- CanaCore field supervision
Related Services
Complete your project with these complementary services
“CanaCore cut two new window openings in our basement concrete walls. The cuts were perfectly square, the dust control was excellent, and they installed proper steel lintels as engineered. Natural light transformed our basement. Professional work from start to finish!”
Need a Wall Opening Cut?
Get a free assessment and quote. CanaCore coordinates structural engineering and precision cutting for safe, code-compliant openings.
Common questions
Is the wall I want to open load-bearing?
It is not something to judge by eye — walls that look identical can carry very different loads. The direction of the joists above, what sits over the wall, and the framing are assessed, and where it is load-bearing the opening needs an engineered beam and support.
Do I need a permit to cut an opening in a wall?
If the wall is structural, yes, and you will normally need drawings showing how the load is carried once the opening is made. Those are prepared for permit review, and the beam or lintel is sized before any cutting begins.
How is the ceiling held up while a bearing wall is opened?
Temporary shoring takes the load on both sides before the wall is cut, and it stays until the new beam and its posts are installed and bearing. That sequencing is supervised in the field because it is the part where getting the order wrong is dangerous.
Read before you start
Practical guidance from the CanaCore Guide on this type of work.
- How Much Does Concrete Cutting Cost in Ontario?How much does concrete cutting cost in Ontario? Price factors, typical ranges, access constraints, and how to compare demolition quotes fairly.
- What Permits Are Required for Interior Demolition in Toronto?What permits are required for interior demolition in Toronto? When you need approval, application steps, and structural or plumbing triggers explained.
- How to Remove a Concrete Slab From a Basement FloorHow to remove a concrete slab from a basement floor in Ontario—thickness, plumbing, disposal, waterproofing, and permit considerations explained.
- Concrete Cutting vs Concrete Breaking: What's the Difference?Concrete cutting vs concrete breaking—which method fits your project? Compare precision, dust, vibration, cost, and Ontario renovation use cases.