Surprise Costs
When comparing quotes from other contractors, keep an eye on
these common surprises that can pop up once the walls are opened.
Our strict "No Hidden Costs" philosophy means we identify these risks during our initial assessment:
Many older London homes have 100 Amp service. If you are adding a suite kitchen or an EV charger, upgrading to 200 Amps costs $5,000+.
Required for most legal suites to meet fire and safety codes. Adding a professional side or rear entrance typically costs between $7,000 and $15,000.
If we find old leaks or mold behind your current insulation, it has to be fixed before we build. Professional cleanup can cost anywhere from $1,500 to $5,000.
What You Will Find on This Page
Overview Page Click Here → Section 1 Where Do I Start?
Our 5-Step Renovation Process Click Here → Section 2 Real Costs & Financing Options
(800 sq.ft. Guide) Click Here → Section 3 Navigating OBC 2024:
Egress Windows & Permits Click Here → Section 5 Fire Safety, Moisture Control
& In-House Mechanicals Click Here → Section 6 Frequently Asked Questions
(FAQ) Click Here →
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Our Works
Updated: May 2026