WHAT TO EXPECT
What Does a Renovation Actually Cost?
No fake price lists. No surprises. Just honest numbers based on your actual project.
Stop guessing and start planning with confidence. Our investment guides reflect the real-world costs of high-quality craftsmanship in Durham Region today. Get the clarity you need to move forward.

Why We Don't Post Prices Online
No two projects are the same. A number on a website would either scare you away or set the wrong expectation. We give you real numbers after a real conversation — based on your actual space, your actual scope, and your actual budget.

Price Lock Guarantee
Signed price. No surprises.
5-Year Warranty
Every project.
Investment Guidelines
At Cornerstone Construction we believe in transparency. Explore our estimated investment ranges for various project types to help plan your renovation. We Listen, We Build, We Deliver.
Kitchens Investment Ranges
Transform your culinary space with our expert kitchen renovation services.
- Cabinet refacing or painting
- New quartz countertops
- Updated tile backsplash
- Standard plumbing fixtures
- Fresh paint and trim
- Custom semi-custom cabinetry
- Premium stone countertops
- Upgraded lighting plan
- New flooring installation
- Mid-range appliance integration
- Fully custom millwork
- Luxury stone & waterfall edges
- Structural wall removal
- Smart home integration
- Professional-grade appliances
Please Note:
The pricing ranges above are estimates based on historical data for typical projects in Durham Region and the GTA. Final costs will vary depending on site conditions, material selections, and final scope of work. Contact us for a precise, fixed price proposal.
Transparent Pricing
What Affects Your Number?
Understanding the variables that drive renovation pricing helps you make informed decisions for your Durham Region home.
Ready for a precise estimate?
Every property is unique. Let Mike Brock and the Cornerstone team evaluate your space and give you a fixed price proposal tailored to your vision.
Common Upgrades
Explore our most requested renovation upgrades designed to increase your home's value and functionality.

- Solid Wood Doors & Drawer Fronts: $2,500 – $7,000+
- Heavy-Duty Drawer Conversions: $250 – $600 per drawer
- Pull-out Trash/Recycling Centre: $450 – $900
- Pantry with Internal Pull-out Trays: $1,500 – $4,000
- Panel-Ready Appliance Installation: $600 – $1,500

- Waterfall Island Ends: $2,500 – $5,500
- Premium Edge Profiles: $25 – $60 per linear foot
- Material Types (Installed): $60 – $180 per sq ft
- Full-Height Slab Backsplash: $3,500 – $8,000
- Decorative Tile Backsplash: $1,500 – $3,500

- Curbless (Zero-Entry) Shower: $3,500 – $6,000
- Rain Shower & Body Spray Systems: $1,200 – $3,500
- Freestanding Soaking Tub: $2,500 – $5,500
- Radiant Heated Floors: $1,200 – $2,800
- Smart Toilets: $2,500 – $6,500

- Egress Window Installation: $3,500 – $8,500
- New Side Entrance/Walk-out: $15,000 – $35,000+
- LED Pot Lights: $175 – $300 per fixture
- Legal Secondary Suite: $120,000 – $200,000+
- New Basement Bathroom: $12,000 – $22,000
OUR COMMITMENT
The Price Lock Guarantee
At Cornerstone Construction, we believe in honest pricing. Once your quote is signed, your price is locked — no surprises. No change orders unless you change the scope in writing.
- Fixed-price contracts with no hidden fees
- Detailed scope of work documentation
- Protection against material price surges
- Transparent budget tracking and reporting
"Surprises are for birthdays, not construction. The number you sign is the number you pay."— Mike Brock, Founder
POPULAR ADDITIONS
Common Add-Ons
Enhance your project with these popular upgrades. All pricing includes labour, materials, and Cornerstone's white glove installation standard.
Heated Floors
Radiant Comfort
Energy-efficient radiant floor heating for bathrooms, kitchens, or entire basement levels. Year-round warmth built in during the rough-in phase.
Pot Lights
Modern Illumination
Professional installation of recessed LED pot lights. Includes wiring, fixtures, and dimmable switches for a clean, contemporary look.
Bollard Lights
Pathway Security
Architectural exterior bollard lighting for curb appeal and safety. Weather-resistant units installed with professional underground conduit wiring.
Custom Built-Ins
Tailored Cabinetry
Custom-designed bookshelves, entertainment centres, or mudroom benches. Handcrafted to match your home's existing architectural style.
Egress Window
Basement Compliance
Required for legal basement bedrooms. Includes excavation, window well installation, and high-efficiency egress window to meet Ontario Building Code.
Walk-In Closet
Master Suite Systems
Premium walk-in closet systems with custom shelving, hanging rods, drawers, and integrated LED lighting. Built to the same standard as every Cornerstone project.
The Price Lock Guarantee
Your price is locked before we start. No surprise invoices. No change orders unless you change the scope. What we quote is what you pay. We believe in total transparency and honoring our word from the first estimate to the final walkthrough.

Frequently Asked Questions
Everything you need to know about our estimation process, timelines, and insurance handling.
Still have questions?
Our project management team is ready to discuss your specific construction needs.
