Home Additions in Southern Ontario
Expert home additions serving all of Southern Ontario
Home Additions
When your family outgrows your home, a well-designed addition is far more cost-effective than moving. Holistic Construction Inc. builds high-quality home additions across Southern Ontario — from single-room additions to full second-storey builds.
Our Home Additions Service
Complete home additions solutions tailored to your needs.
Architectural drawings and structural engineering
Building permit management
Foundation work (if required)
Structural framing and roofline integration
Insulation, drywall, and interior finishing
Electrical, plumbing, and HVAC extension
Window and exterior door installation
Exterior cladding to match existing home
Interior design matching existing finishes
Full landscaping restoration post-build
Other Services We Offer
Explore our complete range of renovation services.
Frequently Asked Questions
How much does a home addition cost in Ontario?
Home additions typically cost $200–$350 per square foot in Ontario. A 400 sq ft addition costs $80,000–$140,000 fully built and finished.
Do I need a permit for a home addition in Ontario?
Yes — all structural additions require a building permit in Ontario. We manage the full permit and inspection process.
How long does a home addition take?
Most home additions take 3–6 months from permit to completion depending on size and complexity.
Home Additions in Your Area
We proudly serve these cities across Southern Ontario.
Get a Free Home Additions Estimate
Ready to start your home additions project? Contact us today for a free, no-obligation estimate.
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